midas/gen v.721 enhancementsmidas/gen v.721 · pdf filemodeling & analysis part (2)...

MIDAS/Gen V.721 EnhancementsMIDAS/Gen V.721 Enhancements

Major EnhancementsMajor Enhancements

Modeling & Analysis Part

Results Part

• Enhancements in Taiwan 2006 Static Seismic Load• Masonry Material Models have been added• Addition of a function to enable the input of Eccentric Beam Loads• Enhancements of Pushover Analysis function

• Addition of Ultimate Story Shear Check Table • Display of Moment Combination in Plate Force/Moment Result• Enhancements of Pushover Analysis Result• Enhancements of Story Result Tables• Display Story Shear Force for each Mode

Major EnhancementsMajor Enhancements

Design Part

• Addition of Strong Column Weak Beam Design• Assign Rebars by Members• Addition of Doubly Reinforced Beam Design• Disregard of Extremely Small Compression/Tension in Nonlinear Members• Enhancements of Concrete Design Result (Rebar, Area and Ratio separately displayed)• Enhancements of Steel Design

Miscellaneous

• Enhancements of Display function• Graphic Option added in Preferences Menu• Save all Graphic Design Results as a graphic file format


ContentsContents

(1) Enhancements in Taiwan 2006 Static Seismic Load

(3) Addition of a function to enable the input of Eccentric Beam Loads

(4) Enhancements of Pushover Analysis function

(2) Masonry Material Models have been added

Modeling & Analysis Part(1) Enhancements in Taiwan 2006 Static Seismic Load

Loads > Lateral Loads > Static Seismic Load

Formula no. 4 and Ac removed

Formula no. 4 and Ac removed

A. Production of Detail Calculations on Static Seismic Loads

B. Modification of Period Calculator dialogbox

Calculations about Acceleration Coefficients

Calculations about Acceleration Coefficients

Modeling & Analysis Part(2) Masonry Material Models have been added

● Applicable only to 8-node Solid elements

● MIDAS/Gen Online Manual V.721- Refer to Model > Property > Plastic Material

Model > Property > Plastic Material

Comment & Reference

Related post-processor

● Results > Stresses > Solid Stress

Brick MaterialBrick Material Bed Joint MaterialBed Joint Material Head Joint MaterialHead Joint Material Geometry of Masonry PaneGeometry of Masonry Pane

Yield status at each stepYield status at each step

Modeling & Analysis Part(3) Addition of a function to enable the input of Eccentric Beam Loads

● Eccentric beam loads can be inputted in ECS or GCS.

● Eccentric beam load is applied as a concentrated load and a moment due to eccentricity internally by the program.

● MIDAS/Gen Online Manual V.721

- Refer to Loads > Element Beam Load & Line Beam Load

Load > Element Beam Loads

Input of Eccentric Beam LoadsInput of Eccentric Beam Loads

Example of input of eccentric beam loadExample of input of eccentric beam load

Applied eccentric loadsApplied eccentric loads

Comments & Reference

Load > Line Beam Loads

Modeling & Analysis Part(4) Enhancements of Pushover Analysis function

● User can define the Shear Spring Location(the option to consider the additional moment occurring

at the end of the element due to shear deformation).

● MIDAS/Gen Online Manual V.721- Refer to Model > Boundary > General Link Property

Model > Boundary > General Link Property

A. Pushover Analysis function can be applied to Spring type General Link Elements– Elastic property

Applicable to Spring Type onlyApplicable to Spring Type only

Enter elastic property of SpringEnter elastic property of Spring

Comment & Reference

Enter Shear Spring LocationEnter Shear Spring Location


Model > Boundary > General Link PropertyB. Pushover Analysis function can be applied to Inelastic Hinges – Inelastic property

Model > Property > Inelastic Hinge Property

● MIDAS/Gen Online Manual V.721- Refer to Model > Property > Inelastic Hinge Property- Refer to Model > Boundary > General Link Property

Comment & ReferenceSpring TypeSpring Type

Applicable to inelastic hingesApplicable to inelastic hinges

Applicable only when User Input, Spring and None

types are selected

Applicable only when User Input, Spring and None

types are selected

All Hysteresis Models built-in MIDAS/Gen can be used

All Hysteresis Models built-in MIDAS/Gen can be used


C. Enhancements of Plastic Hinges

i. Disequilibrium force in a member has been resolved

ii. Improvement in convergence of pushover analysis using wall elements

M φ− M θ−

EI HingeF F F= + EI HingeF F F= +Flexibility of a member

01/6L from both endsPlastic length of a member

At both ends of a member

At both ends of a memberInelastic hinge

Flexural member

FEMAMulti-linear

Pushover Analysis

a. FEMA Type: Enable the user to define the initial stiffness of flexural member to be used in inelastic analysis

b. Multi-linear Type: Distributed hinge type for inelastic time history analysis has been added

Define initial stiffness of

flexural member

Define initial stiffness of

flexural member


D. Enhancements in Convergence Problem and Reliability of Pushover Analysis

Design > Pushover Analysis > Pushover Analysis Control

i. Convergence Criteria, Force Norm and Energy Norm have been added

Force Norm and Energy Norm addedForce Norm and Energy Norm added

ii. Residual disequilibrium force after the convergence for each increment is determined has been resolved

iii. Revision of hysteresis routine – Unloading routine added

iiii. Enhancements of algorithm to improve other convergence problem

● MIDAS/Gen Online Manual V.721- Refer to Design > Pushover Analysis > Pushover

Analysis Control

Reference

Results Part

ContentsContents

(3) Enhancements of Pushover Analysis Result

(4) Enhancements of Story Result Tables

(5) Display Story Shear Force for each Mode

(2) Display of Moment Combination in Plate Force/Moment Result

(1) Addition of Ultimate Story Shear Check Table

Results Part

● MIDAS/Gen V.721 Online Manual

- Refer to Results > Result Tables > Story> Ultimate Story Shear Check

Reference

(1) Addition of Ultimate Story Shear Check Table

Results > Result Tables > Story > Ultimate Story Shear Check

If Beta ≥ 0.8, OK is printed in the Remark. (Otherwise, NG is printed in red.)

If Beta ≥ 0.8, OK is printed in the Remark. (Otherwise, NG is printed in red.)

The lesser of Beta1 and Beta2 is producedThe lesser of Beta1 and Beta2 is produced

Calculation of Beta about clockwise and counter-clockwise directions

(Vp / Ve)i / (Vp / Ve)i+1

Calculation of Beta about clockwise and counter-clockwise directions

(Vp / Ve)i / (Vp / Ve)i+1

Story shear force due to static seismic load or response spectrum load

Story shear force due to static seismic load or response spectrum load

Results Part


- Refer to Results > Forces > Plate Force

Reference

(2) Display of Moment Combination in Plate Force/Moment Result

Results > Forces > Plate Forces / Moments

Mxx = 1.0Myy = 0.5Mxx = 1.0Myy = 0.5

Mxx = 1.0Myy = 1.0Mxx = 1.0Myy = 1.0

Mxx = 1.0Myy = 0.3Mxx = 1.0Myy = 0.3

Results Part(3) Enhancements of Pushover Analysis Result

Results > Deformations > Deformed Shape

Related Functions

● Design > Pushover Analysis > Hinge Status Table

● MIDAS/Gen V.721 Online ManualRefer to Results > Deformations > Deformed Shape

Reference

Display Multi-linear type hinge

Display Multi-linear type hinge

Display FEMA type hinge

Display FEMA type hinge

A. Display Hinge Status of General Link Elements

Results Part(4) Enhancements of Story Result Tables


- Refer to Results > Result Tables > Story Shear Force Ratio

● Story Shear Force due to RS loads is calculated by combining the story shear forces of each mode using the modal combination method.

Related Functions

● Model > Building > Control Data- Story Shear Force Ratio Check On

Reference

A. The method of calculating the Story Shear Force Ratio due to Response Spectrum loads has been changed

Results > Result Tables > Story> Story Shear Force Ratio

Sum of the story shear forces that Frame and Wall share respectively

Sum of the story shear forces that Frame and Wall share respectively

The sum of the ratios of Frame and Wall is 1The sum of the ratios of Frame and Wall is 1

Results Part

● If Story Drift is negative (-), the stiffness of the corresponding story is displayed with "-“.

B. Enhancements of Stiffness Irregularity Check Table

Results > Result Tables > Story > Stiffness Irregularity Check

Example: Stiffness Irregularity CheckExample: Stiffness Irregularity Check

Module not definedModule not defined

Module definedModule defined

Comment

Results Part

Related Functions

● Story Result Tables that display NG in the Remark column

- Story Drift- Story Shear Force Coefficient- Torsional Irregularity Check- Stiffness Irregularity Check- Weight Irregularity Check - Capacity Irregularity Check

C. NG is displayed in red in the Remark column of the Story Result Tables

Results > Result Tables > Story Tables

Example: Story DriftExample: Story Drift

Example: Capacity Irregularity CheckExample: Capacity Irregularity Check

Results Part

D. Application of Module function extended to more Story Result Tables

Results > Result Tables > Story Tables

Already existedStory Mode Shape

Already existedTorsional Irregularity Check

Already existedStability Coefficient

Already existedStory Axial Force Sum

Already existedOverturning Moment

Already existedStiffness Irregularity Check

Newly addedStory Eccentricity

Newly addedStory Shear Forces (Response Spectrum Analysis)

Already existedStory Displacement

Already existedStory Drift

Newly addedStory Shear Force Ratio

Already existedTorsional Amplification Factor

RemarkApplication of Module function

Already existedCapacity Irregularity Check

Results Part


- Results > Result Tables > Story Drift- Results > Result Tables > Story Drift (Time History Analysis)

- Results > Result Tables > Story Shear (Response Spectrum Analysis)

Reference

E. Level column removed from the Story Drift and Story Shear Force Coefficient TablesResults > Result Tables > Story > Story Drift, Story Drift (Time History Analysis), Story Shear (Response Spectrum Analysis) - Story Shear Force Coefficient

Story Level column removedStory Level column removed

Level (Unit) removedLevel (Unit) removed

Level (Unit) removedLevel (Unit) removed

Results Part

Related Functions

● Loads > Response Spectrum Analysis Data > Response Spectrum Load Case

● Analysis > Eigenvalue Analysis Control

● Results > Result Tables > Story > Story Shear Force Ratio, Story Shear (Response Spectrum Analysis)

(5) Display Story Shear Force for each Mode

Results > Result Text Output (*. MSR, *. GA1)

*. MSR file*. MSR file

Design Part

ContentsContents

(1) Addition of Strong Column Weak Beam Design

(4) Disregard of Extremely Small Compression/Tension in Nonlinear Members

(5) Enhancements of Concrete Design Result (Rebar, Area and Ratio separately displayed)

(6) Enhancements of Steel Design

(2) Assign Rebars by Members

(3) Addition of Doubly Reinforced Beam Design

Design Part(1) Addition of Strong Column Weak Beam Design

A. Strong Column-Weak Beam Design


- Design > RC Strong Column-Weak Beam >Ductile Design

- Design > RC Strong Column-Weak Beam >Ductile Checking

- Design > RC Strong Column-Weak Beam Strong Column-Weak Beam Ratio Table

Related Functions

● Design > RC Strong Column-Weak Beam > Ductile Checking & Strong Column-Weak Beam Ratio Table

● Results > Result Tables > Story > Ultimate Story Shear Check

References

Design > RC Strong Column-Weak Beam > Ductile Design

Design Process

Step 1: Perform Seismic Design for beam membersStep 2: Calculate design forces of column members

(Calculate end moments that result in hinges at beam ends)Step 3: Perform column design using the member forces and axial forces calculated from Step 2

Design Process

Step 1: Perform Seismic Design for beam membersStep 2: Calculate design forces of column members

(Calculate end moments that result in hinges at beam ends)Step 3: Perform column design using the member forces and axial forces calculated from Step 2

Beam Design ResultsBeam Design Results

Column Design ResultsColumn Design Results

Design Part

B. Checking Beam-Column Flexural Capacity Ratio (in Model View)

Design > RC Strong Column-Weak Beam > Ductile Checking


- Design > RC Strong Column-Weak Beam Ductile Design

- Design > RC Strong Column-Weak Beam Ductile Checking


Related Functions

● Design > RC Strong Column-Weak Beam > Ductile Design & Strong Column-Weak Beam Ratio Table


References

[Display of Ratios]Reference Coordinate System: Produce ratios with respect to GCS or Column Element’s Local Coordinate System Checking Direction: a. Clockwise or counter-clockwise direction

b. Produce the result about the more critical direction Display Flexural Capacity Ratios: a. Display all flexural capacity ratios

b. Display the ratios that do not satisfy the user input Limit

[Display of Ratios]Reference Coordinate System: Produce ratios with respect to GCS or Column Element’s Local Coordinate System Checking Direction: a. Clockwise or counter-clockwise direction

b. Produce the result about the more critical direction Display Flexural Capacity Ratios: a. Display all flexural capacity ratios

b. Display the ratios that do not satisfy the user input Limit

Design Part

C. Beam-Column Flexural Capacity Ratio Table

Design > RC Strong Column-Weak Beam > Strong Column-Weak Beam Ratio Table


- Design > RC Strong Column-Weak Beam Ductile Design

- Design > RC Strong Column-Weak Beam Ductile Checking


Related Functions

● Design > RC Strong Column-Weak Beam > Ductile Design & Strong Column-Weak Beam Ratio Table


References

Global Axis TableGlobal Axis Table

Column Local Axis TableColumn Local Axis Table

Limit value can be modified Limit value can be modified

Check flexural capacity ratio⇒ Angle can be modified

Check flexural capacity ratio⇒ Angle can be modified

Limit value can be modified Limit value can be modified

Design Part(2) Assign Rebars by Members

Design > Concrete Design Parameters > Design Criteria for Rebar by Members


- Design > Concrete Design Parameters > Design Criteria for Rebar by Members

- Design > Concrete Design Parameters > Concrete Design Tables > Design Criteria for Rebar by

Members

● While ‘Design Criteria for Rebars’ enables the user to assign rebars by sections, ‘Design Criteria for Rebar by Members’ enables the user to assign rebars by members. ‘Design Criteria for Rebar by Members’ precedes ‘Design Criteria for Rebars’ when both are assigned.

Design > Concrete Design Parameters > Concrete Design Tables > Design Criteria for Rebar by Members

Beam Rebar TableBeam Rebar Table

Column/Brace Rebar TableColumn/Brace Rebar Table

Wall Rebar TableWall Rebar Table

Comment & References

Specify compressive rebar area


Design Part(3) Addition of Doubly Reinforced Beam Design

Design > Concrete Design Parameters > Design Criteria for Rebar


- Design > Concrete Design Parameters > Design Criteria for Rebar

- Design > Concrete Design Parameters > Design Criteria for Rebar by Members

- Design > Concrete Design Parameters > Concrete Design Tables > Design Criteria for Rebar by

Members

● While ‘Design Criteria for Rebars’ enables the user to assign rebars by sections, ‘Design Criteria for Rebar by Members’ enables the user to assign rebars by members. ‘Design Criteria for Rebar by Members’ precedes ‘Design Criteria for Rebars’ when both are assigned.

Design > Concrete Design Parameters > Design Criteria for Rebar by Members

Comment & ReferencesSpecify compressive rebar area


a. Specify by sectionsa. Specify by sections

b. Specify by membersb. Specify by members

Design > Concrete Design Parameters > Concrete Design Tables > Design Criteria for Rebar by Members

Design Part(4) Disregard of Extremely Small Compression/Tension in Nonlinear Members

Design > Steel Code Check

Related Functions

● Model > Elements > Create Element Tension Only/Hook/Cable, Compression Only/Gab

● Load >Create Load Cases Using Load Combinations

● Analysis > Main Control Data

Design > Concrete Code Design > RC, Column, Wall, Brace Design

Design > SRC Code Check > Column Checking

Revision of V721Revision of V721

In cases where tension-only/compression-only elements have extremely small compression/tension, the compression/tension forces are ignored in the design process.

Steel Design- Compression/tension forces are ignored if they are less than 1/10000 of (Steel Sectional Area × Fy).- This is identically applied to tapered sections and the area is measured at the section where the strength check is to be performed.

RC Design- Compression/tension forces are ignored if they are less than 1/10000 of (Concrete Area × Fck).- Reinforcement is not taken into account since the forces are calculated before design.

SRC Design- Compression/tension forces are ignored if they are less than 1/10000 of (Steel Sectional Area × Fy).- In SRC Design, it is common to design in a way that only the steel section can resist compression and tension

Design Part(5) Enhancements of Concrete Design Result (Rebar, Area and Ratio separately displayed)


- Refer to Design > Concrete Design Result

Reference

Design > Concrete Design Result

Display Ratio separately

Display Ratio separately

Display Rebar Display Rebar

Display Area Display Area

Display Ratio Display Ratio

Design Part(6) Enhancements of Steel Design

A. ‘Change Steel Properties Dialog’ displays code checking results for all Properties

Design > Steel Code Check

B. Revision of Steel Code Checking Detail Calculations

Revision of V721Revision of V721

Old Version: Detail report used to display the calculations corresponding to the location of member and load combination,which produced the most critical combined stress.

New Version: Detail report displays the calculations corresponding to the location of member, which produces the morecritical one of the most unfavorable combined stress and the most unfavorable shear stress.

Produce the code checking results for all properties in a text format

Produce the code checking results for all properties in a text format

Miscellaneous

ContentsContents

(1) Enhancements of Display function

(2) Graphics Option added in Preferences Menu

(3) Save all Graphic Design Results as a graphic file format

Miscellaneous(1) Enhancements of Display function


- Refer to View > Display Option

View > Display Option

Related Functions● Results > Deformations > Deformed Shape

- Inelastic Time History Analysis Result - Pushover Analysis Result

A. Hinge Size can be controlled

Control SizesControl Sizes

Reference

Miscellaneous


- Refer to View > Display

View > Display

Related Functions● Model > Property > Sections

B. Simultaneously display the Section Shape and the Section Property Name

Display Property Name and Section Shape simultaneouslyDisplay Property Name and Section Shape simultaneously

Reference

Miscellaneous(2) Graphics Option added in Preferences Menu


- Refer to Tools > Preference

Reference

Tools > Preference

Stream Buffer Size Specify the Buffer Size according to the configuration of the graphic card

Stream Buffer Size Specify the Buffer Size according to the configuration of the graphic card

Enable Vector-Based Print Out Reduce time for printout using the Vector-Based Engine of low resolution

Enable Vector-Based Print Out Reduce time for printout using the Vector-Based Engine of low resolution

Enable Low Resolution Print Out Optimize the background when the Vector-Based Print Out option is enabled

Enable Low Resolution Print Out Optimize the background when the Vector-Based Print Out option is enabled

Miscellaneous(3) Save all Graphic Design Results as a graphic file format

Design > Design Result Dialog & Code Check Result Dialog

Revision of V721 Revision of V721

Old Version: Save the graphic design result of a single member or property

New Version: Save the graphic design results of a lot of members or properties

midas/gen v.721 enhancementsmidas/gen v.721 · pdf filemodeling & analysis part (2)...

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