cbs manual example eng 2010

8/8/2019 CBS Manual Example Eng 2010

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User Guide

Autodesk

March 2009


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Autodesk Concrete Building Structures 2010 - Examples page: 1

TABLE OF CONTENTS

1. EXAMPLE OF USING AUTODESK CONCRETE BUILDING STRUCTURES .............................. 2

1.1. INTRODUCTION ............................................................................................................................ 2 1.2. INSERTION OF GRIDS AND S TRUCTURE AXES ; DEFINITION OF MATERIALS AND S ECTIONS ............... 3 1.3. MODEL GENERATION ................................................................................................................. 11 1.4. DEFINITION OF DIMENSION LINES ............................................................................................... 30 1.5. GENERATION OF S TORY DRAWINGS , CALCULATION MODEL AND DATA EXPORT ............................ 33

2. EXAMPLE OF DEFINING LOADS IN AUTODESK CONCRETE BUILDING STRUCTURES .... 35

2.1. INTRODUCTION .......................................................................................................................... 35 2.2. DEFINITION OF S ECTIONS AND MATERIALS .................................................................................. 36 2.3. GENERATION OF THE S TRUCTURE MODEL .................................................................................. 38 2.4. DEFINITION OF LOADS ................................................................................................................ 52

3. COMPUTATIONAL CAPABILITIES OF AUTODESK CONCRETE BUILDING STRUCTURES 57

3.1. INTRODUCTION .......................................................................................................................... 57 3.2. DEFINITION OF A S TRUCTURE MODEL ......................................................................................... 58

3.2.1. Definition of Sections and Default Materials .................................................................... 58 3.2.2. Definition of a grid ............................................................................................................ 60 3.2.3. Definition of Walls ............................................................................................................ 62 3.2.4. Definition of Beams .......................................................................................................... 63 3.2.5. Definition of Columns ....................................................................................................... 65 3.2.6. Definition of Spread and Continuous Footings ................................................................ 66 3.2.7. Definition of Windows ...................................................................................................... 67 3.2.8. Definition of Doors ........................................................................................................... 71 3.2.9. Definition of Slabs ............................................................................................................ 74 3.2.10. Definition of Stairs ........................................................................................................... 77 3.2.11. Copying stories ................................................................................................................ 79

3.3. DEFINITION OF LOADS ................................................................................................................ 80 3.4. CALCULATIONS .......................................................................................................................... 86

3.4.1. Simplified Calculations - Trapezoidal and Triangular Method ......................................... 86 3.4.2. Simplified Calculations - Simplified FE Method ............................................................... 92 3.4.3 Advanced Calculations - Finite Element Method ............................................................. 99

2009 Autodesk, Inc. All rights reserved


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page: 2 Autodesk Concrete Building Structures 2010 - Examples

1. EXAMPLE OF USING AUTODESK CONCRETE BUILDING STRUCTURES 1.1. Introduction

The example below shows how to use the Autodesk Concrete Building Structures program tomake a model of a high-rise building, to generate a model in the Autodesk Robot Structural Analysis program, to prepare drawings of projections of stories and to export them to a dxf format.

The following rules will apply in the example below: any icon symbol means that the relevant icon is pressed with the left mouse button,

{x,x y,y} stands for indication with the mouse cursor of the point with the coordinates X=x,xY=y,y (the value specified may be an approximate value if it refers to a structure snap point)

d indicates entering the d text, Enter, Delete, ESC stands for pressing the key Enter , Delete, ESC, respectively, on the

keyboard



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LMC and RMC - abbreviations for the Left Mouse button Click and the Right Mouse button Click.

the following units are applied in the example: structure dimension [m], section dimension [cm],angle [Deg] (default units may be changed by the user in the Preferences dialog box on the Units tab available in the Tools / Preferences menu)

To start Autodesk Concrete Building Structures , the user should press the icon on thecomputer desktop or select START menu > Autodesk Concrete Building Structures .

1.2. Insertion of Grids and Structure Axes; Definitionof Materials and Sections

OPERATION PERFORMED DESCRIPTION

(Grid / Axes - Objects toolbar) Opens the Grids dialog box which enables definition of newgrids and structure axes.Note 1: If the toolbar with the relevant icon is not displayed on the screen, then in the View menu the user should choose the Toolbars submenu and next, activate an appropriate toolbar by LMC on the line with the name of this toolbar. Note 2: The option is also available in the context menu and in the top menu Edit Grid / Axes.

In the opened Grids dialog box,LMC on the tree options:Cartesian grids / CAG , on the field tothe left of the grid name CAG ( displays)

Activates a new Cartesian grid. The background of theactive grid type ( CAG) fills with a navy blue color, if not,LMC on the grid name ( CAG), then the right panel of thedialog box appears and parameters of an active grid maybe defined there.



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(the icon in the top right corner of the Grids dialog box)

The option that allows performing a number of editoperations without closing the dialog box.NOTE: The option is available in all dialog boxes for editing.

In the Position in the coordinate system field, in the X axis and Y axis

edit fields enter:0.00

Defines a position of the first grid node {0,0 ; 0,0}.

In the Step field contained in theX direction field enter the value 0.5

Defines the grid step along the X axis.

In the Number field contained in theX direction field enter the value 12

Defines the number of grid cells along the X axis.

In the Step field contained in theY direction field enter the value 0.5

Defines the grid step along the Y axis.

In the Number field contained in theY direction field enter the value 18

Defines the number of grid cells along the Y axis.

LMC on the Draw only nodes option Selects display of a grid in a form of grid nodes.Note: if the Draw only nodes option is not selected, a grid is presented in a form of intersecting lines.

LMC on the Apply button Confirms definition of the grid.

(Add) Adds a new Cartesian grid. In the right part of the Grids dialog box parameters of an active grid are presented.

In the Initial angle field enter the

value 45,0

Defines the angle of inclination of the grid lines to X axis.

LMC on the X axis field in thePosition in the coordinate system field and next, on the graphicalviewer - LMC on the bottom rightnode of the previously inserted grid{6.0 ; 0.0}

Defines graphically a position of the first grid node.Note 1: Once the insertion point is indicated in the graphical viewer, values of the indicated coordinates are entered to the edit fields X Axis = 6.0 Y Axis = 0.0 Note 2: The current coordinate of the cursor position is displayed in the bottom right corner of the main Autodesk Concrete Building Structures window




Defines the number of grid cells along the X.






(Add) Adds a new Cartesian grid. In the right part of the Grids

dialog box parameters of a given grid are presented.



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In the Initial angle field enter thevalue 225.0

Defines the angle of inclination of the grid lines to X axis.




Defines the number of grid cells along the X axis.






LMC on the C ylindrical grids optionin the tree included in the left part ofthe dialog box

Adds and deletes cylindrical grids. The active grid becomeshighlighted.

(Add) Adds a new cylindrical grid. In the right part of the Grids dialog box parameters of a given grid are presented.


Defines the inclination angle of the first grid axis withrespect to the coordinate system.



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LMC on the X axis edit field in thePosition in the coordinate system field and next, on the graphicalviewer - LMC on the common pointof the first and second Cartesian grid{6.0 0.0}

Defines graphically a position of the central node of thecylindrical grid.Note 1: Once the insertion point is indicated in the graphical viewer, values of the indicated coordinates are entered to the edit fields X Axis = 6.0 Y Axis = 0.0.

In the Angle field contained in theCylindrical direction field enter thevalue 45.0

Defines the step of angle division of the grid.

In the Number field contained in theCylindrical direction field enter thevalue 2

Defines the number of grid cells within the determinedangle.

In the Step field contained in theRadial direction field enter the value3.0

Defines the grid step.

In the Number field (Radial direction field) enter the value 3

Defines the number of grid cells in radial distribution.

LMC on the Apply button Confirms definition of the grid

(Add) Adds a new cylindrical grid. In the right part of the Grids dialog box parameters of a given grid are presented.


In the Angle field contained in the

Cylindrical direction field enter thevalue 45.0

Defines the step of angle division of the grid.

In the Number field contained in theCylindrical direction field enter thevalue 2

Defines number of grid cells within the determined angle.

In the Step field (Radial direction field) enter the value 3.0

Defines the grid step.

In the Number field (Radial direction field) enter the value 3

Defines the number of grid cells in radial distribution.

LMC on the Apply button Confirms definition of the grid

LMC on the Axes option in the treeincluded in left part of the dialog box

Adds and deletes groups of structure axes. The Axes option becomes highlighted.

(Add) Adds a new axis group named by default AG(1).

LMC on the Axes/AG(1)/Straight axes/A option in the tree in the leftpart of the dialog

The tree option becomes highlighted and the options fordefining parameters of an active grid are displayed in theright-hand part of the dialog box.



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In the y1 field enter the value 9.0 Defines the straight axis position with respect to Y axis.


(Add) Adds a new straight axis.

In the y1 field enter the value 0.0 Defines position of the straight axis with respect to Y axis.



LMC on the y1: field, afterwards inthe graphical viewer LMC on thelowest-positioned point of theoutermost grid on the left {-6.36 -6.36} (point 1 in Figure 1 )

Defines graphically the axis position.Note 1: Once the insertion point is indicated in the graphical viewer, the coordinate y1 = -6.36 is entered to the y1: edit field .

LMC on the Axes option in the tree

included in the left part of the dialog

Adds and deletes groups of structure axes. The Axes

option becomes highlighted.

(Add) Adds a new axis group named by default AG(2).

LMC on the AG(2) option in the Axesoptions in the tree included in the leftpart of the dialog box

Sets parameters of axes in the group AG(2). The AG(2)option becomes highlighted.



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In the Names of straight axes field delete the text %A and enter %1

Changes the default manner of naming axes from alphabetletters to digits.

LMC on the Axes/AG(2)/Straight axes/1 option in the tree included inthe left part of the dialog box

The tree option becomes highlighted and options fordefinition of parameters of a straight axis are displayed inthe right-hand part of the dialog box.

LMC on the X axis field in the rightpart of the Grids dialog box (disappears)

Deselects the option that imposes a parallel position of theaxis to the X axis of the coordinate system. All fields withcoordinates of the defined axis become active.

LMC on the Y axis field in the rightpart of the Grids dialog box (displays)

Selects the option that imposes a parallel position of theaxis to the Y axis of the coordinate system. Only the fieldwith the x1 coordinate is active .

In the x1 field enter the value 6.0 Defines position of the straight axis with respect to X axis.

LMC on the Apply button Confirms the definition of the straight axis.

(Add) Adds a new straight axis in the AG(2) group.

In the x1 field enter the value 0.0 Defines position of the straight axis with respect to X axis.

LMC on the Apply button Confirms the definition of the straight axis.


LMC on the x1 field Selects the mode of tracking the cursor position in thegraphical viewer.



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In the graphical viewer LMC on thelowest-positioned point of theoutermost grid on the right (point 2in Figure 1)

Defines the axis position graphically.Note: Once the insertion point is indicated in the graphical viewer, the value of X coordinate = 18.73 is entered to the x1: edit field

LMC on the x1 field Selects the mode of tracking the cursor position in the

graphical viewer.

In the graphical viewer LMC on thelowest-positioned point of theoutermost grid on the left (point 3 inFigure 1 )

Defines the axis position graphically.Note: Once the insertion point is indicated in the graphical viewer, the value of X coordinate = -12.73 is entered to the x1: edit field .

In the x1 field enter the value 3.0 Defines the straight axis position with respect to X axis.

LMC on the Apply button Confirms the definition.

LMC on axis 5 contained inAxes/AG(2)/Straight axes options inthe tree included in the left part ofthe dialog box

Activates axis 5; the active axis becomes highlighted.

LMC on axis 5 and enter the value00 in the activated edit field

Changes the axis name.

LMC on the Apply button Confirms the definition.

LMC on the Close button Closes the dialog box used for definition of grids and axes.

(Translate Coordinate System - the Coordinate System toolbar)

Selects the option which allows changing the position of thecoordinate system.

LMC on the point of intersection ofthe following axes B - 00

Indicates a new position of the coordinate system.

Figure 1



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(Section database the Properties toolbar)

Opens the Section database dialog box which enablesdefinition of new sections.

LMC on the Rectangular option inthe tree included in the left part ofthe dialog box.

Selects the section type rectangular sections. The activesection type becomes highlighted.

(Add) Adds a new rectangular section.

In the b field enter the value 40.0and in the h field 40.0

Defines section dimensions.

(Add) Adds a new rectangular section.

In the b field enter the value 40.0 and in the h field 60.0

Defines section dimensions.

LMC on the Walls (slabs) option in

the tree contained in the left part ofthe dialog box

Selects the section type sections for walls and slabs. The

active section type becomes highlighted.

(Add) Adds a new section for walls or slabs.

In the b field enter the value 35.0 Defines the section thickness.





LMC on the Rectangular openings option in the tree contained in the leftpart of the dialog box

Selects the section type rectangular openings. The activesection type becomes highlighted.

(Add) Adds a new rectangular opening.

In the l field enter the value 150.0 and in the h field 210.0

Defines opening dimensions.


In the l field enter the value 80.0 andin the h field 210.0


LMC on the OK button Closes the dialog box and confirms the executedoperations.



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1.3. Model Generation

(Default sections the Properties toolbar)

Opens the Default sections dialog box which allowsdetermining default sections for newly-defined elements.

From the Beams list - select thesection R40*60 Sets the section R40*60 as a default one for the newly-defined beams.

From the Columns list select thesection R40*40

Sets the section R40*40 as a default one for the newly-defined columns.

From the Walls list select thesection TH25

Sets the section TH25 as a default one for the newly-defined walls.

From the Slabs list - select thesection TH15

Sets the section TH15 as a default one for the newly-defined slabs.

From the Raft Foundations list -

select the section TH35

Sets the section TH35 as a default one for the newly-

defined foundation plates.

From the Partition walls list - selectthe section TH15

Sets the section THR15 as a default one for the newly-defined partition walls.

From the Doors list - select thesection RO150*210

Sets the section RO150*210 as a default one for the newly-defined doors.

LMC on the OK button Closes the dialog box and confirms the executedoperations.

(Column the Objects toolbar) Selects the option of column insertion.



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LMC on the point of the followingaxis intersection B 4 { -15,73 0}and next on successive grid nodespositioned on the line connectingthat point with C axis {-13.61 2.12};{-11.49 4.24}; {-9.36 6.36}

Defines columns.

(Select - the Objects toolbar) Selects the option of element selection.NOTE: The Select option is also available in the context menu.

Holding the left mouse buttonpressed mark a rectangular regionso that all the inserted columns areincluded inside it.

Selects elements with the window.NOTE: The window selection option can be used to select only the elements that are entirely contained inside the window (the window is defined from left to right) or to select elements inside the window together with all the objects intersected by the line of the selection window (the window is defined from right to left).

(Properties - the Objects toolbar) Opens the object properties dialog box.NOTE: The Properties option is also available in the context menu.

LMC on the Position tab Changes the active tab.

LMC on the Gamma angle field Defines an angle using the points in the graphical viewer.

In the graphical viewer LMC on thegrid node on which the lowest-positioned column is located {-9.36 6.36} and on the point of intersectionof the following axes B - 4 { -15.73 0}

Defines graphically the angle of axis rotation. Revolves theaxis of column section to the angle of 135 with respect to Xaxis of the coordinate system.Note: Once the first insertion point is indicated in the

graphical viewer, the Gamma angle edit field will show the value of the current angle between X axis and the line connecting the cursor position with the first point.

Enter Accepts changes. Closes the dialog box.

(Copy - the Standard toolbar) Copies selected elements.NOTE: The Copy option is also available by using the Ctrl+C shortcut keys.

(Paste - the Standard toolbar) Pastes elements from the Clipboard.NOTE: The Paste option is also available by using the Ctrl+V shortcut keys.

LMC on the grid node the closest tothe point of intersection of thefollowing axes B 4, located on theline perpendicular to the linedetermined by the columns.(First green point in Figure 2 { -13.612.12 } )

Indicates the point of insertion of the pasted elements andadds them to the structure.



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Figure 2

(Paste - the Standard toolbar) Pastes elements from the Clipboard.

LMC on next grid node located onthe line determined by theintersection of the following axes B 4 and the point of the previous

insertion.(Second green point in Figure 2 { -11.49 4.24} )


(Paste - the Standard toolbar) Pastes elements from the Clipboard.

LMC on next grid node located onthe line determined by theintersection of the following axes B 4 and the point of the previousinsertion.(Third green point in Figure 2 { -9.366.36 } )


LMC anywhere in the graphicalviewer

Unselects elements.

(Column - the Objects toolbar) Selects the option allowing insertion of columns.

LMC on three successive grid nodesdefining the symmetry axis of theradial grid located to the left of 00axis (Points marked in yellow inFigure 2 {-6.44 8.31}; {-5.30 5.54}; {-4.15 2.77})

Defines next columns.



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(Select - the Objects toolbar) Selects the option allowing selection of elements.

Holding the Ctrl key pressed LMCon the three last-inserted columns

Selects objects.

Properties - the Objects toolbar) Opens the dialog box with object properties. NOTE: The properties option is also available in the context menu.

In the Gamma angle field enter thevalue 112.5

Revolves the axis of column section to the angle 112.5 with respect to X axis of the coordinate system.

Enter Accepts changes. Closes the dialog box.


Unselects elements.

(Column the Objects toolbar) Selects the option allowing insertion of columns.

LMC on the point determined by theintersection of the following axes A 2

Defines next column.


LMC on the column positioned at thepoint of intersection of the followingaxes B 2

Selects the object.

(Properties the Objects toolbar)

Opens the dialog box with object properties. NOTE: The properties option is also available in the context menu.

In the Gamma angle field enter thevalue 0.0

Revolves the axis of column section to the angle 0.0 withrespect to X axis of the coordinate system.

Enter Accepts the changes. Closes the dialog box.

Pressing the left mouse button -select a rectangular region in such away so that all the inserted columnsare contained inside it.

Selects elements with the window.

(Vertical mirror - the Edit toolbar) Selects the option which enables obtaining mirror reflection

with respect to the axisLMC on the point of intersection ofthe following axes A 00

Defines a symmetry axis for the operation of vertical mirror.

(Properties - the Objects toolbar)Opens the dialog box with object properties. NOTE: The properties option is also available in the context menu.

(Column - the Objects toolbar) Selects the option allowing definition of columns.

LMC on the point of intersection ofthe following axes A 00 andafterwards B 00

Defines next columns.



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(Wall - the Objects toolbar) Selects the option allowing definition of walls.

(Drag - the Edit Modes toolbar) Selects the option allowing definition of objects as a chain -polyline.

LMC on the cylindrical grid nodepositioned on axis 1, closer to axis A(First green point in Figure 3 {3.06.0}), next LMC on the cylindricalgrid node positioned on the sameaxis, located closer to axis B(Second green point in Figure 3 {3.03.0}), next LMC on the nodepositioned symmetrically to thepreviously inserted one withrespect to axis 00 (Third green pointin Figure 3 {-3.0 3.0}) and LMC onthe cylindrical grid node positionedon axis 2, closer to axis A (Fourthgreen point in Figure 3 {-3.0 6.0})

Defines next points of the elevator shaft wall.



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Figure 3

(Drag - the Edit Modes toolbar) Deselects the option allowing definition of objects asa chain - polyline.

LMC on the grid node at whichdefinition of walls was started (Firstgreen point in Figure 3 {3.0 6.0})

Defines the last external wall of the elevator shaft.

LMC on the grid node positioned onthe top horizontal wall at a pointdetermined by 1/3 of the distancebetween the axes 1 and 2 (Yellowpoint A1 in Figure 3 {-1.0 6.0}),afterwards LMC on the grid nodepositioned on the opposite wall sothat a newly inserted wall isperpendicular to them (Yellow pointA2 in Figure 3 {-1.0 3.0})

Defines an internal vertical wall of the elevator shaft.

LMC on the grid node positioned onthe top horizontal wall at a point

determined by 2/3 of the distancebetween the axes 1 and 2 (Yellowpoint B1 in Figure 3 {1.0 6.0}),afterwards LMC on the grid nodepositioned on the opposite wall sothat a newly inserted wall isperpendicular to them (Yellow pointB2 in Figure 3 {1.0 3.0})

Defines an internal vertical wall of the elevator shaft.


LMC on the top horizontal wall of theelevator shaft

Selects the object.



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(Translate - the Edit toolbar) Opens the Translation dialog box.

In the y field in the Translation vector field enter the value 1.0

Defines translation vector.

LMC on the Copy option Selects the option enabling translation with copying.

LMC on the Apply button Confirms the operation. Adds an internal horizontal wall ofthe elevator shaft. Closes the Translation dialog box.Note: If the user wishes to perform more edit operations without closing the dialog box, the dialog box may be

pinned to the screen by means of LMC on on the dialog box bar. Automatic closing of the dialog box after pressing the Apply button can be restored by LMC on .This option is available in all the dialog boxes intended for edition.


Unselects elements.


Holding the Ctrl button pressed -LMC one by one on the two internalvertical walls of the elevator shaft.

Selects objects.

(Cut off - the Edit toolbar) Selects the option allowing cutting off parts of elements.

LMC on the middle part of theinternal horizontal wall of the

elevator shaft.

Cuts off the middle part of the wall.



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Unselects elements.

Holding the Ctrl key pressed - LMCone by one - on the two wallsgenerated as a result of cutting offthe internal horizontal wall

Selects objects.

(Properties - the Objects toolbars)

Opens the dialog box with object properties.

LMC on the Properties tab Changes the active tab.

From the Section list choose thesection TH15

Changes the thickness of selected walls.

Enter Confirms modifications. Closes the dialog box.


Unselects elements.

(Slab - the Objects toolbars) Selects the option allowing insertion of slabs.

Starting with the node positioned onthe intersection of the axes B 3 LMC clockwise one by one on thegrid nodes located on the externalcontour of the building (pointsmarked in yellow in Figure 4).

Defines a slab.

Figure 4



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(Floor cut/opening - the Objects toolbar)

Selects the mode allowing definition of openings in floors.

LMC one by one on the grid nodespositioned on the corners of externalwalls of the elevator shaft (pointsmarked in red in Figure 4)

Defines a floor cut/opening.

(Door - the Objects toolbar) Starts definition of doors.

Three times LMC one by one on thegrid nodes positioned on the bottomwall of the elevator shaft at themidpoint of each room (pointsmarked in red in Figure 5)

Defines doors.

Figure 5

(Slab - the Objects toolbar) Selects the option allowing definition of slabs.

LMC one by one on the grid nodespositioned on walls of the middlepart of the elevator shaft (pointsmarked in blue in Figure 5 )

Defines a staircase landing slab.

LMC one by one on the grid nodespositioned on walls of the middlepart of the elevator shaft (pointsmarked in yellow in Figure 5)

Defines a second staircase landing slab.




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Holding the Ctrl key pressed, LMCon the slab positioned higher (basedon yellow points in Figure 5) andnext LMC on the slab positionedlower (based on blue points in Figure5)

Selects the slab.


on the dialog box bar Selects the option that pins the dialog box to the screen.

In the z= field enter the value 1.5 Defines the translation vector.

LMC on the Apply button Carries out the operation of translation.

LMC again on the slab positionedlower (based on blue points in Figure5)

Changes the object selection.

LMC on the Apply button in theTranslation dialog box

Translates the slab again by 1.5 [m].

LMC on the Close button in theTranslation dialog box LKM

Closes the Translation dialog box.

From the Window menu choose theNew window option

Add a new graphical window in a project.

From the Window menu choose theTile vertically option

Arranges windows automatically.

(3D (whole building) the 3D View toolbar)

Selects 3D viewNote: If the user works in the operating system other than Windows NT and DirectX v.8 or higher is installed on his/her computer, the user can select a view with surface rendering by means of the icon (displays 3D model with rendering the 3D View toolbar).

(Zoom - the 3D View toolbar) Selects the option which enables zooming dynamically a 3Dview.Note : The option is also available by means of Shift + LMC.

LMC in the viewer with 3D view andnext, move with the mouse cursor insuch a manner so that the staircaseview is zoomed in

Zooms a 3D view dynamically.

(Rotate - the 3D View toolbar) Selects the option which enables dynamical rotation of a 3Dview.

LMC in the viewer with 3D view andnext, move with the mouse cursor insuch a manner so that the recentlydefined slabs can be seen

Rotates the 3D view dynamically.



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LMC in the viewer with 2D view Activates the working viewer.


Unselects elements.

(Stairs - the Objects toolbar) Selects the option allowing definition of stairs.

LMC on the top left corner of thebottom staircase landing (markedwith number 1 in Figure 6) and next,one by one - on the bottom left pointof the top staircase landing, point ofintersection of 00 axis with the topstaircase landing and next, withbottom staircase landing (markedwith numbers: 2, 3 and 4 in Figure 6)and again on the point with whichthe definition was started (1 in Figure6).

Defines first flight of stairs.

(Select - the Objects toolbar) Selects the option for selection of elements.

LMC on the defined stairs Selects the defined stairs.

(Properties-the Objects toolbar)Opens the dialog box with object properties.


LMC on the z coordinate for point 2and change its value from 3.0 to 1.5 (the coordinate z of point 3 willchange automatically)

Changes the height of the flight of stairs



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Unselects elements.


LMC on the point of intersection ofaxis 00 with the bottom edge of thetop staircase landing (marked withnumber 3 in Figure 6) and next - oneby one on the point of intersectionof axis 00 with the bottom staircaselanding, top right corner of thebottom staircase landing and bottomright corner of the top staircaselanding (marked with numbers: 4, 5and 6 in Figure 6) and again on thepoint with which the definition wasstarted (3 in Figure 6).

Defines second flight of stairs.

Figure 6

From the Story menu choose theCopy option

Opens the dialog box which enables copying stories.

In the To: field enter the value 5 Determines number and position of copied stories.

LMC on the OK button Performs the copy operation. Closes the dialog box.

From the Story no.: list on the Story

toolbar choose story 5

Changes the current story.



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Opens the dialog box for copying stories.

To the to: field enter the value 9 Determines number and position of the copied stories.


From the Story no.: list on the Story toolbar choose story 9



From the Edit menu choose theSelection criteria option

Opens the dialog box for definition of selection filters.

LMC on the field with a cross to theleft of the Object filter option

Expands the tree of object filters.

LMC on the field to the left of theStairs option and afterwards, LMCon the field to the left of the Floor cut/opening option

Selects filtering of stairs and floor cut/openings. Activatesthe object filter.

LMC on the Selection button Selects selection of the filtered objects.

LMC in the viewer with 2D view Activates the working viewer.

Delete Deletes selected elements.


LMC on the top staircase landingslab

Selects the object.

Delete Deletes the selected slab.



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To the From: field enter the value 1,to the to: field enter the value 1

Determines number and position of the copied stories.




(Story parameters - the Story toolbar)

Displays the Story parameters dialog box.

LMC on a field below the Auto option

in the Name field and enter Cellar inthe field that has become accessible

Changes the story name from the one ascribed

automatically to the user-defined one.

To the h= field enter 4.0 Changes the story height.

(Wall - the Objects toolbar) Selects the option allowing definition of walls.

(Drag - the Edit-Modes toolbar) Selects the option that enables definition of objects as achain polyline.

Starting with the node positioned onthe intersection of the axes B 3 -LMC - clockwise one by one - on the

grid nodes located on the externalcontour of the floor slab (pointsmarked in yellow in Figure 4 ).

Defines side walls of the cellar.

Esc Finishes definition of walls.



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(Foundation plate - the Objects toolbar)

Selects the option allowing definition of foundation plates.

Starting with the node positioned onthe intersection of the axes B 3 -LMC - clockwise one by one - on thegrid nodes located on the externalcontour of the floor slab (pointsmarked in yellow in Figure 4).

Defines a foundation plate.


Holding the Ctrl key pressed LMCon the flight of stairs

Selects objects.

Delete Deletes selected elements.

LMC on the top staircase landing

slab

Selects the slab.


To the z= field enter the value 0.5 Defines the translation vector.

LMC on the Apply button Performs the operation of translation.

LMC on the Close button Closes the Translation dialog box.


Unselects elements.


LMC on the top left corner of thebottom staircase landing (markedwith number 1 in Figure 6 ) andafterwards, one by one on thebottom left point of the top staircaselanding, point of intersection of axis00 with the top staircase landing andnext, with the bottom staircaselanding (marked with numbers 2, 3and 4 in Figure 6 ) and again on the

point with which the definition started(1 in Figure 6).

Defines first flight of stairs.

(Select - the Objects toolbar) Selects the option for selection of elements.

LMC - select the defined stairs Selects the defined stairs.





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LMC on the z coordinate for point 2and change its value from 0.0 to -1.5 (the z coordinate of point 3 willchange automatically)

Changes the height of the flight of stairs.



Unselects elements.


LMC on the point of intersection ofaxis 00 with the bottom edge of thetop staircase landing (marked withnumber 3 in Figure 6) and next - oneby one on the point of intersectionof axis 00 with the bottom staircase

landing, top right corner of thebottom staircase landing and bottomright corner of the top staircaselanding (marked with numbers: 4, 5and 6 in Figure 6) and again on thepoint with which the definition wasstarted (3 in Figure 6).

Defines second flight of stairs.




LMC on the column positioned onthe external grid node at the pointdetermined by 1/3 of the distancebetween the point of intersection ofthe axes B 2 and axis C (marked inred in Figure 7)

Selects the object.

Figure 7



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(Rotate - the Edit toolbar) Selects the option allowing rotation of elements.

To the y= field in the Center of rotation field enter the value 3.0

Enters the y coordinate of the rotation center.

To the Rotation angle field enter thevalue 30.0

Enters the rotation angle.

LMC on the Copy option Selects the option allowing element rotation with copying.

To the Number of repetitions fieldenter the value 2

Defines the number of repetitions for the operation ofrotation.

LMC on the Apply button Accepts the settings, carries out the operation of rotationand closes the dialog box.

(Spread footing - Objects toolbar) Selects the option allowing definition of spread footings.

(Snap cursor to object ends - the Snap toolbar)Selects the option allowing cursor snapping to object ends.

LMC on the newly generatedcolumns (points 2 and 3 in Figure 8)

Inserts spread footings.

(Beam - the Objects toolbar) Selects the option allowing definition of beams.

LMC on the column that was amodel for the operation of rotationwith copying and next, LMC - one byone on the newly generated columnsand finally, on the column endingthis arc segment (points 1, 2, 3 and4 in Figure 8 )

Defines beams.

Figure 8



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(Drag - the Edit-Modes toolbar) Deselects the option that enables defining objects asa chain polyline.

Esc Deletes the last point of the polyline as a first point of a newbeam.

LMC on the first of the newly definedcolumns, and next, LMC on thecolumn positioned at the point ofintersection of axes B 2, andagain, LMC on the first of the newlydefined columns and next, LMC onthe column positioned at the point ofintersection of axes B 00 (pairs ofpoints 2-5 and 2-6 in Figure 8)

Defines successive beams.

LMC on the second of the newlydefined columns, and next, LMC onthe column positioned at the point ofintersection of axes B - 1, and again,LMC on the second of the newlydefined columns and next, LMC onthe column positioned at the point ofintersection of axes B 00 (pairs ofpoints 3-7 and 3-6 in Figure 8)

Defines successive beams.

(Slab - the Objects toolbar) Selects the option allowing definition of slabs.

Starting with the column positionedat the intersection of the axes B 00- LMC - clockwise one by one on thecolumns so that the slab extendsover the newly generated beams(points 6, 7, 4, 3, 2, 1, 5, 6 in Figure8).

Defines a slab of staircase landing.



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1.4. Definition of Dimension Lines

From the View menu choose theArchitectural view option

Changes the type of element presentation.

From the View menu choose theDisplay option Opens the Display dialog box.NOTE: The Display option is also available, in the context menu.

On the Objects tab LMC on thefollowing options: Slabs, Foundation plates, Floor cuts/openings, Rooms

Turns off the display of slabs, foundation plates, floorcuts/openings and rooms.

LMC on the Apply button Confirms the selection and closes the dialog box.


LMC on the bottom wall of theelevator shaft

Selects the objects.

(Display axis points - the Dimension lines toolbar)

Selects display of axis points.NOTE: If the Automatic option is used for dimensioning,then the points displayed are considered automatically as nodes of dimension lines.

(Automatic - the Dimension lines toolbar)

Selects automatic generation of dimension lines.

LMC on the grid node positioned1[m] (two grid nodes) below the axis

of the selected wall

Inserts a dimension line parallel to X axis.

(Display architectural points - the Dimension lines toolbar)

Selects display of architectural points.

(Display axis points - the Dimension lines toolbar)

Selects display of axis points.

(Automatic - the Dimension lines toolbar)

Activates the option allowing automatic snapping tocharacteristic points of selected elements.

LMC on the grid node positionedbelow the axis of the dimension lineinserted previously

Inserts a dimension line parallel to X axis.


LMC on the last-inserted dimensionline

Selects the dimension line.

(Properties - the Objects toolbar)Opens the Object properties dialog box.

LMC on the Position tab Moves to the Position tab.

LMC on line 15 in the table ofdimension line coordinates

Selects a snap point of the dimension line.



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in the left part of the dialog box Deletes the snap point of the dimension line.

LMC on the table lines and -repeat it for the following points(lines) 12, 11, 10, 7, 6, 5, 2

Deletes successive snap points of the dimension line.

Enter Closes the dialog box.

From the Story no.: list on the Story toolbar choose the story 0


(Oblique - the Dimension lines toolbar)

Selects the option allowing insertion of oblique lines.

(Snap cursor to object ends - the Snap toolbar)

Selects the option of snapping the cursor to object ends.

(Snap cursor to grid nodes - the Snap toolbar)

Selects the option of snapping the cursor to grid nodes.

LMC on the column positioned at theintersection of the following axes B 4

Inserts a first snap point for the oblique axis of thecoordinate system.

LMC on the column positioned at theintersection of the grid line whichextends to the previously-definedpoint and C axis.

Inserts a second snap point for the oblique axis of thecoordinate system.

LMC on the point positionedapproximately 1.0 [m] below theinserted snap point

Inserts an oblique dimension line.



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LMC one by one on the twocolumns positioned on the same gridline extending to C axis

Inserts successive snap points for the oblique axis of thecoordinate system.

(Reference mark - the Dimension lines toolbar)

Selects the option allowing insertion of reference marks.

LMC on the point positioned at theintersection of the following axes B-4

Inserts first snap point for the reference mark.

LMC on the point positioned approx.1.0 [m] above and to the right fromthe point of previous insertion

Inserts second snap point for the reference mark.

LMC on the point positioned approx.2.0 [m] to the right from the point ofprevious insertion

Inserts third snap point for the reference mark.

(Select - the Objects toolbar) Selects the selection option.

LMC on the reference mark Selects the reference mark.

(Properties - the Objects toolbar)Opens the Object properties dialog box.

LMC on the Properties tab Moves to the Properties tab.

To the Text field enter 40x40 Changes description of the reference mark.

Enter Confirms changes and closes the dialog box.

From the View menu choose theDisplay option

Opens the Display dialog box.

LMC on the All button Selects display of all objects.




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LMC on the Save button Saves the exported file. Opens the DXF Export dialog box.Note: A file thus exported may be opened in the AutoCAD program v.10 or higher or in any program supporting DXF format.

LMC on the OK button Closes the DXF Export dialog box.

(Export to the Robot program - the Standard toolbar)

Launches generation of a calculation model in theAutodesk Robot Structural Analysis program.Note: It is required that Autodesk Robot Structural Analysis v15.0 or higher be installed on the users computer. If there are several versions of the program installed on a computer, the model is generated in the recently-activated version.



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2. EXAMPLE OF DEFINING LOADS IN AUTODESK CONCRETE BUILDING STRUCTURES

2.1. IntroductionThe example below shows capabilities of defining loads in the Autodesk Concrete Building Structures program. It also illustrates new features of Autodesk Concrete Building Structures version 2010. To facilitate defining a geometrical model, the example is based on a simple structure ofa small building with wooden rafter framing.

The following rules apply to the example below: any icon symbol means press the relevant icon with the left mouse button,

{x,x y,y} means using the mouse cursor indicate the point with the coordinates X=x,x Y=y,y(the value specified may be approximate if it refers to a structure snap point),

d stands for enter the d text to the field indicated in the text

d stands for enter the d text directly from the keyboard (without reference to an edit field)

(), ( ), (), ( ) stands for press the relevant arrow key on the keyboard

()+( ) stands for press simultaneously two arrows on the keyboard

Enter, Ctrl, Delete, ESC mean press the button Enter, Ctrl, Delete, ESC, respectively on thekeyboard; the + sign indicates that pressing of the above-mentioned key on the keyboard islinked with pressing of another key that follows after the + sign

LMC, RMC: abbreviations for the Left Mouse button C lick and the Right Mouse button Click

the following units are applied in the example: structure dimension [m], section dimension [cm],angle [Deg] (default units may be changed by the user in the Preferences dialog box on the Units tab - available in the Tools / Preferences menu ).

To start Autodesk Concrete Building Structures , the user should press the icon on thecomputer desktop or select the START menu > Autodesk Concrete Building Structures .



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LMC on the Walls (slabs) option inthe tree in the left part of the dialogbox

Selects the section type sections for walls and slabs. Theactive section type becomes highlighted.


In the b field enter value 35.0 Defines section thickness.

LMC on the Rectangular openings option in the tree in the left part ofthe dialog box

Selects the section type rectangular openings. The activesection type becomes highlighted.


In the l field enter the value 90.0 andin the h field 210.0



In the l field enter the value 180 andin the h field 150


LMC on the OK button Closes the dialog box and accepts the operationsperformed.

(Material Database - the Properties dialog box)

Opens the Material database dialog box which enablesdefinition of new materials.

LMC on the Layered material optionin the tree in the left part of thedialog box

Selects the material type - layered material. The activematerial type becomes highlighted.

(Add) Adds a new layered material.

From the list in the Material field inthe first table row select Cement mortar

Defines first material layer. Non-structural material.

To the Thickness field in the samerow enter value 5 cm.

Defines thickness of the first material layer.

From the list in the Material field inthe second table row select Foamed

polystyrene

Defines second material layer. Non-structural material.

To the Thickness field in the samerow enter value 10 cm

Defines thickness of the second material layer.

From the list in the Material field inthe third table row select Concrete

Defines third material layer. Structural material.

To the Thickness field in the samerow enter the value 25 cm

Defines thickness of the third material layer.

LMC on the option in the tree in theleft part of the dialog box with adefault material name

Sets the current material.



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Again LMC on the same option inthe tree

Activates edition of the material name.

To the active field enter:SLAB_LEnter

Changes name of the material

(Add) Adds a new layered material.

From the list in the Material field inthe first table row select Foamed polystyrene

Defines first layer of the material. Non-structural material.


Defines thickness of the first material layer.

From the list in the Material field inthe second table row selectConcrete

Defines second layer of the material. Non-structuralmaterial.


Defines thickness of the second material layer.

LMC on the option in the tree in theleft part of the dialog box with adefault material name

Sets the current material.

Again LMC on the same option inthe tree

Activates edition of the material name.

To the active field enter

WALL_LEnter

Changes name of the material.


2.3. Generation of the Structure Model

(Default Sections

- the Properties toolbar)

Opens the Default Sections dialog box where defaultsections for newly-defined elements can be determined.

From the Beams list select sectionR15*17.5

Sets the R15*17.5 section as a default one for newly-defined beams.

From the Columns list select sectionR35*35

Sets the R35*35 section as a default one for newly-definedcolumns.

From the Continuous Footings listselect section T75*25

Sets the T75*25 section as a default one for newly-definedcontinuous footings.

From the Windows list select sectionRH180*150

Sets the RH180*150 rectangular opening as a default onefor newly-defined windows.



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From the Doors list select sectionRH90*210

Sets the RH90*210 rectangular opening as a default onefor newly-defined doors.


(Default Materials - the Properties toolbar)

Opens the Default Materials dialog where default materialsfor newly-defined elements can be determined.

From the Beams list select materialPine

Sets the Pine material as a default one for newly-definedbeams.

From the Columns list selectmaterial Concrete

Sets the Concrete material as a default one for newly-defined columns.

From the Walls list select materialWALL_L

Sets the WALL_L material as a default one for newly-defined walls.

From the Slabs list select materialSLAB_L

Sets the SLAB_L material as a default one for newly-defined slabs.




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(Wall - the Objects toolbar) Selects the option of wall definition.

(Snap Cursor to Grid Nodes - - the Snap toolbar)

Selects the option that allows snapping the cursor to thegrid nodes. NOTE: The option may already be selected by default.

(Drag - the Edit-Modes toolbar) Selects the option enabling definition of objects as a chain polyline.

(Arcs on/off) Deactivates the option of defining arc elements.

-5.0 Enters the beginning point of the wall chain.NOTE: The option displays the dialog box into which relative coordinates may be entered from the keyboard.

( )10.0

Enters the next point of the wall chain.

()2.5


()+( )1.5


( )8,5


()4,0




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(Snap Cursor to Object Ends - the Snap toolbar)

Selects the option which snaps the cursor to object ends.

(Snap Cursor to Object Centers - the Snap toolbar)

Selects the option which snaps the cursor to object centers.

(Door - the Objects toolbar) Starts definition of a door.

LMC on the grid node withcoordinates: {-1.0 2.0}

Defines a door.

(Window - the Objects toolbar) Starts definition of windows.

LMC on the grid nodes withcoordinates: {-5.0 2.0}; {-5.0 -2.0}

Defines two windows.

LMC in the middle of the slanting

wall

Defines a window.

(Select - the Objects toolbar) Selects the option allowing element selection.

LMC in the top left corner of thescreen showing a structure view andnext, holding the left mouse buttonpressed, move the cursor to thebottom right part of the screen sothat the selection rectangle containsall the defined elements

Selects objects.NOTE: The user may use the Ctrl+A key shortcut selection of all elements.



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(Vertical Mirror - the Edit toolbar) Selects the option making mirror reflection with respect toaxis.

LMC on the grid node withcoordinates: {0.0 5.0}

Defines the symmetry axis for vertical mirror.

(Column - the Objects toolbar)Selects the option of column definition.

LMC on the grid nodes with thecoordinates: {-1.0 5.0} and next, {1.05.0}

Defines columns.


(Drag - the Edit-Modes toolbar) Selects the option allowing definition of objects as a chain polyline.

LMC on the grid nodes withcoordinates {-1.0 -5.0} and next, on{1.0 -5.0}

Defines a wall.

LMC on the grid node withcoordinates {-1.0 0.0} and next, on{1.0 0.0}

Defines the next wall.

LMC on the point of intersectionbetween the left slanting wall and thewall parallel to Y axis {-1.0 3.5} andnext, LMC on the point ofintersection between the rightslanting wall and the wall parallel toY axis {1.0 3.5}

Defines the next wall.

(Door - the Objects toolbar) Starts definition of a door.

LMC in the middle of the previouslydefined wall {0.0 3.5}

Defines a door.

LMC on the grid node withcoordinates: {0.0 0.0}

Defines a door.



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(Slab - the Objects toolbar) Selects the mode of slab definition.

(Add Specially - the Objects toolbar)

Selects the special mode of slab definition.

LMC within the large room on theleft, e.g. on the point { -3.0 0.0}

Defines a floor slab.

LMC within the large room on theright, e.g. on the point { 3.0 0.0}


LKM within the smaller roompositioned under X axis, e.g. on thepoint { 0.0 -2.0}


(Add Specially - the Objects toolbar)

Turns off the special mode of slab definition.

Starting with the grid node of thecoordinates {-1.0 0.0} LMC -clockwise - on the points with thefollowing coordinates: {-1.0 3.5} {-2.55,0} {2.5 5.0} {1.0 3.5} {1.0 0.0} {-1.00.0}

Defines a slab the user creates contour of the slabcomprising the smaller room positioned above X axis andthe balcony.

From the View menu select theArchitectural View option

Changes the mode of element presentation (the option isactive after starting up the program).NOTE: The option is also available through the F10 key shortcut.

From the View menu select theDisplay option

Opens the Display dialog box.NOTE: The Display option is also available in the context menu.

LMC on the Names tab in theopened Display dialog box

Changes the active tab in the Display dialog box.

LMC on the field:Walls ( displays)

The option allows displaying wall names in the graphicalviewer.

LMC on the Apply button Closes the Display dialog box.

LMC on the wall W0_1(see the drawing below) Selects objects. The selected wall will be highlighted inblue.

(Properties-the Objects toolbar) Opens the Object Properties dialog box.NOTE: The option is also available in the context menu (RMC / Properties).

LMC on the Properties tab in theopened Object Properties dialogbox

Changes the tab in the Object Properties dialog box.

LMC on the field:( displays)

Changes the order of layers in the layered material for wallW0_1 .



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Analogously, change the order oflayers in the following walls:W0_2; W0_3; W0_5; W0_13 (see the drawing below)

Changes the order of layers in the layered material forselected walls.

From the View menu select theDisplay option


LMC on the Names tab in theopened Display dialog box

Changes the active tab in the Display dialog box.

LMC on the field:Walls ( displays)

The option allows deactivating display of wall names in thegraphical viewer.

LMC on the Apply button Closes the Display dialog box.

From the View menu select theStructural View option

Changes the mode of element presentation.NOTE: The option is also available through the F9 key shortcut.



Into the to: field enter value 1 Determines the number and positions of copied stories.


From the Story no. list on the Story

toolbar select the story 0




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(Continuous Footing - the Objects toolbar)

Selects the mode of continuous footing definition.


LMC - four times - on the grid nodeswith coordinates {-5.0 -5.0}, {-5.05.0}, {5.0 5.0}, {5.0 -5.0}

Defines outer continuous footings.


LMC on the grid node withcoordinates {-5.0 -5.0}

Completes definition of outer continuous footings.

LMC on the grid node withcoordinates {-1.0 -5.0 } and next,

LMC on the point of intersectionbetween the left slanting wall and thewall parallel to Y axis {-1.0 3.5}

Definition of inner continuous footing.

LMC on the point of intersectionbetween the left slanting wall and thewall parallel to Y axis {-1.0 3.5}, next,LMC on the point of intersectionbetween the left slanting wall and theouter wall parallel to X axis {-2.5 5.0}


LMC on the grid node withcoordinates {1.0 -5.0} and next, LMC

on the point of intersection betweenthe right slanting wall and the wallparallel to Y axis {1.0 3.5}


LMC on the point of intersectionbetween the right slanting wall andthe wall parallel to Y axis {1.0 3.5},next, LMC on the point ofintersection between the rightslanting wall and the outer wallparallel to X axis {2.5 5.0}


LMC on the bottom right window ofthe program presenting 3D view ofthe structure

Changes the active program window.

(3D (Whole Building)) the 3D View toolbar)

Displays a 3D view of the entire structure.Note: If an operating system other than Windows NT is used and DirectX v.8 or higher is installed on the computer,then by using (3D Model with Rendering the 3D View toolbar) the user can display a view showing filled surfaces with shadows. By default, a texture is assigned to each material; it can be changed or deleted in the Material Database dialog box (from the Tools menu select the Material Database option).



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LMC on the left main programwindow

Changes the active program window.

From the Story no.: list on the Story

toolbar select story 1




LMC on the None button Turns off display of all elements.

On the Objects tab LMC on theBeams option

Displays beams.

LMC on the Apply button Confirms selection and closes the dialog box.

(Beam - the Objects toolbar) Selects the option of beam definition.

LMC on the grid node with thecoordinates {0.0 -5.0} and next, on{0.0 5.0}

Defines the roof ridge beam.

LMC on the grid node with thecoordinates {0.0 -5.0} and next, on {-5.0 5.0}

Defines outer rafters.

LMC on the grid node with thecoordinates {0.0 -5.0} and next, on

{5.0 -5.0}


LMC on the grid node with thecoordinates {0.0 5.0} and next, on {-5.0 5.0}


LMC on the grid node with thecoordinates {0.0 5.0} and next, on{5.0 5.0}


LMC on the grid node with thecoordinates {-5.0 -5.0} and next, on{-5.0 5.0}

Defines outer ground beams.



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(Select - the Objects toolbar) Selects the option enabling selection of elements.Note: The Select option is also available in the context menu.

Holding the Ctrl key pressed LMCon four outer rafters one by one

Selects objects.Note: The user may also select these objects by making

several successive window selections holding the Ctrl key pressed .

(Extend - the Edit modes) Selects the option enabling elongation of elements.

LMC on two purlins one by one Elongates purlins so that they reach rafters with automaticfitting of elements in 3D space.

(Beam - the Objects toolbar) Selects the option of beam definition.

LMC on the grid node with thecoordinates {-3.0 3.0} and next, on

{3.0 3.0}

Defines a collar beam.

(Select - the Objects toolbar) Selects the option of element selection.Note: The Select option is also available in the context menu.

Holding the Ctrl key pressed LMCon both purlins one by one

Selects objects.Note: The user may also select these objects by making several successive window selections holding the Ctrl key pressed .

(Cut Off - the Edit toolbars) Selects the option enabling trimming elements.

LMC one by one on points near bothends of the collar beam

Trims both ends of the collar beam so that they fit purlinswith automatic fitting of elements in 3D space.

(Select - the Objects toolbar) Selects the option enabling selection of elements.Note: The Select option is also available in the context menu .

LMC on the collar beam Selects objects.


LMC on the grid node with the

coordinates {0.0 3,0} and next, on{0.0 1.0}

Defines the translation vector graphically.

LMC on the Copy option Selects the copy option.

Into the Number of repetitions fieldenter 3

Determines the number of repetitions for the copyoperation.

LMC on the Apply button Performs the copy operation.

LMC on the Close button Closes the dialog box for definition of grids and axes.



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Holding the Ctrl key pressed LMCone by one on two outer rafters

positioned in the top part of thescreen

Selects objects.Note: The user may also select these objects by making

several successive window selections holding the Ctrl key pressed .


LMC on the grid node with thecoordinates {0.0 3.0} and next, on{0.0 1.0}

Defines the translation vector graphically.

LMC on the Copy option Selects the copy option.

Into the Number of repetitions fieldenter 4

Determines the number of repetitions for the copyoperation.

LMC on the Apply button Performs the copy operation.


From the View menu select theSynchronize Views option

Selects the work mode (structural / architectural)synchronization and display in all the layouts.



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LMC on the grid node with thecoordinates {-5.0 5.0} and next, LMCon the grid node with the coordinates{5.0 5.0}

Defines a gable wall.

Answer yes to the question thatdisplays on the screen askingwhether wall display should berestored

Restores display of walls.Note: The Display option is available in the context menu and in the main program menu: View / Display.


LMC on the newly-defined gable wall Selects objects.


Into the z= field enter value 3.0 Defines translation vector.




LMC on the Position tab Changes the tab in the Object Properties dialog box.

(Detailed Wall Presentation - the Object Properties dialog box)

Changes wall presentation from the simplified description tothe detailed one

LMC on the third row of the tablewith wall coordinates

Activates the row describing third characteristic point of thewall.

(Delete Row - the Object Properties dialog box)

Deletes the third characteristic point of the wall.



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LMC on the table field in the x[m] column in the third row

Activates the edit field. Its color changes to green, the valuemay be modified.

Into the active field enter 0.0 Changes position of the third characteristic point of thegable wall.

Enter Accepts changes and closes the dialog box.Note: If the option on the bar in the properties dialog box is not selected, then the dialog box does not close automatically after pressing Enter .


(on the bar in the Object Properties dialog box )

Deselects the option that closes the dialog boxautomatically once the operation is performed.

LMC on the grid node with thecoordinates {0.0 -5.0} and next, on{0.0 4.0}

Defines translation vector graphically.

LMC on the Copy field Selects the copy option.


(Select - the Objects toolbar) Selects the option allowing selection of elements.Note: The Select option is also available in the context menu.

LMC on the copied gable wall Selects objects.

LMC on theCopy

field Deselects the copy option.

Into the y= field enter the value 1.0 Defines translation vector.


LMC on the Close button Closes the Translation dialog box.


Opens the Display dialog box.NOTE: The Display option is also available in the contextmenu .

LMC on the All button Allows displaying all objects.

LMC on the Apply button Accepts selection and closes the dialog box.



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2.4. Definition of LoadsFrom the Edit menu select theDefault Values / Loads option

Displays dialog box with default loads.

LMC on the LIVE option in the tree inthe left part of the dialog box

Selects nature of a new load group - live. The active loadtype becomes highlighted.

(Add) Adds a new group of live loads.

LMC on the new highlighted optionin the tree in the left part of thedialog box

Activates edition of the groups name.

Into the active field enterLive_building ,Enter

Changes name of the load group.

Into the Planar field in the right partof the dialog box enter 5.0

Assigns the default value of planar loads 5.0 [kN/m 2] to thegroup.

Into the Load factor field in the rightpart of the dialog box enter 1.3

Assigns load factor 1.3 to the group.

LMC on the OK button Confirms changes and closes the dialog box.

From the Story no.: list on the Story toolbar select story 0


(Planar Load-the Loads toolbar) Chooses load type.

From the list on the Loads toolbarselect group Live_building

Changes the current load group.

LMC - four times - within successivefloor slabs beginning with the largefloor on the left and next, clockwiseon the points, e.g.: {-3.0 0.0} {0.01.0} {3.0 0.0} {0.0 -1.0}

Applies live loads to floor slabs.

(Generate - the Loads toolbar) Generates load patterns for the defined live loads.



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(Display - the Loads toolbar) Displays dialog box with the list of current load patterns.

LMC on the first item on the list inthe left part of the dialog box

Indicates the current load pattern.NOTE: Load patterns are presented in 3D view.

( ) Views successive load patterns.NOTE: Load patterns are presented in 3D view.

LMC on the first 3-element loadpattern

Indicates the current load pattern.

LMC on the Delete pattern button inthe top part of the dialog box Deletes the current load pattern.

Repeat the operation of deletingthree times for all the 3-element loadpatterns one by one

Deletes the remaining 3-element load patterns.

LMC on the Close button Closes the dialog box.





LMC on the None button Turns off the display of all objects.

On the Objects tab - LMC on theBeams option

Allows displaying beams.


(Linear Load - the Objects toolbar)

Selects load type.



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On the Objects tab - LMC on theWalls option

Allows displaying walls.

On the Objects tab - LMC on theBeams option

Turns off the display of beams.


(Planar Load-the Loads toolbar)Selects the load type.

From the list on the Loads toolbarchoose the Wind group

Changes the current load group.

Into the edit field on the Loads toolbar enter 0.25

Changes the load value.

LMC on the outer wall on the leftside of the building

Applies the load to the wall on the left.



LMC on the outer wall on the rightside of the building

Applies the load to the wall on the right.





LMC on the outer wall on the leftside of the building

Applies the load to the wall on the left.



LMC on the outer wall on the rightside of the building

Applies the load to the wall on the right.



LMC on the All button Allows displaying all the objects.




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(Export to the Robot Program - the Standard toolbar)

Runs generation of the calculation model in the Autodesk Robot Structural Analysis program.Note: It is required that Autodesk Robot Structural Analysis v. 15.0 or higher is installed on the computer. If several program versions are installed on the computer, the generation is performed in the recently-run version.



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3. COMPUTATIONAL CAPABILITIES OF AUTODESK CONCRETE BUILDING STRUCTURES

3.1. IntroductionThe example below illustrates how to use the calculation methods provided in Autodesk ConcreteBuilding Structures . Calculations may be performed independently, using a user-selected method.To facilitate defining a geometrical model, the example is based on a simple structure of a smallbuilding.

The following rules will apply in the example below

any icon symbol means that the relevant icon is pressed with the left mouse button

{x,x y,y} stands for indication with the mouse cursor of the point with the coordinates X=x,xY=y,y (the value specified may be approximate if it refers to a structure snap point)

d indicates entering the d text to the described field

d stands for entering the d text directly from the keyboard (without the association with the editfield) and pressing the Enter key

Enter , Ctrl , Delete , ESC , Space stands for pressing the key Enter , Ctrl , Delete , ESC , Space,respectively, on the keyboard; the + sign indicates that pressing of the above-mentioned key onthe keyboard is linked with pressing of another key that follows after the + sign

LMC, RMC : abbreviations for the Left Mouse button Click and the Right Mouse button Click

the following units are applied in the example: structure dimension [m], section dimension [cm],angle [Deg] (default units may be changed by the user in the Preferences dialog box on the Units tab - available in the Tools / Preferences menu ).



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To start Autodesk Concrete Building Structures , the user should press the icon on thecomputer desktop or select START menu > Autodesk Concrete Building Structures .

UWAGA: Autodesk Concrete Building Structures version 2010 may be run in three different configurations: Geometrical model, Geometrical model with loads and Calculations.

To check the current program configuration, the user should select the Preferences option from the Tools menu and next, in the Preferences dialog box move to the Configuration tab. To make the example below correctly, the Calculations option has to be selected. If a different option is selected, then the Calculations icon should be pressed. To update the configuration, the program has to be closed and then restarted. If the Calculations option is not active, then the user should run the installation program again and using the Modify mode should install the components: Calculations and Advanced Calculations. Detailed information concerning it can be found in the Autodesk Concrete Building Structures Help file (Program Installation / Installation Program).

NOTE: The following codes are used in the example: - RC provided reinforcement: ACI 318-02 metric

cbs manual example eng 2010

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