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DWC LLC

Exclusive Distributor in the Middle East for CSI Software licensing,technical support and training solutions – www.techiesoft.com

For Sales: sales@techiesoft.com For Technical Support: support@techiesoft.comFor Licensing: license@techiesoft.com

CSiBridge 2016 Enhancements

CSiBridge 2016 18.1.0 | 18.1.1 Enhancements

Loads can graphically be displayed on a model for each stage of a staged constructionload case.

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All load types in a load case can be graphically displayed in a single view.

Modeling

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Bridge Modeler

Section cuts are automatically created at user-defined ‘All Spaces’ splice locations.

Analysis

New operation added for staged-construction load cases to allow changing linkproperties.

Event-to-event solution strategy implemented as an option for nonlinear direct-integration time-history analysis.

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Bridge Design

Automated seismic design extended to consider the bridge capacity in the longitudinaldirection.

Increase in the speed of performing bridge superstructure design and rating for certainmodels

CSiBridge 2016 18.0.0 | 18.0.1 Enhancements

Graphical User Interface

Assign and select menu forms enhanced to allow them to remain open for repetitive usewith a new apply button.

Floating forms for multiple use

DirectX graphics mode enhanced to use DirectX 11 for enhanced speed and capabilities.

A full 64-bit version of CSiBridge is now available.

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Modeling

New 2-D modified Darwin-Pecknold concrete model added to the nonlinear layeredshell. This model represents concrete compression, cracking, and shear behavior underboth monotonic and cyclic loading, and accounts for crack rotation.

Layered shell definitions

New cable-stayed bridge template added.

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Cable-stayed bridge template

Additional frame and shell (non-bridge) templates added.

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Non-bridge templates

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Modify undeformed geometry feature enhanced to allow applying the modification to aselection of joints, as well as limiting the direction of modification.

Modify undeformed geometry settings

Bridge Modeler

New construction scheduling wizard added for segmental bridges, allowing for quickand easy creation of a construction schedule, including travelers.

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Stage construction of segmental bridge

User-defined bridge sections can now be created and used in the bridge modeler, includingdifferent materials, openings, radii, parametric variations, and editing in Excel or section

designer.

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User-defined with circular openings

Bridge modeler enhanced to more accurately define the geometry in the vicinity of askewed support, diaphragm, or in-span hinge for curved bridges and/or parametric

variations of the bridge section at the skew.

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Auto-meshed complex skewed geometry

Loading

AASHTO legal loads for load rating added to the vehicle library.

AASHTO Lane-Type Legal

Analysis

A new stability check added for nonlinear static load cases to report when the structuremay have failed under material or geometric nonlinearities that are not obvious fromthe analysis results.

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Handling of convergence tolerances for time-dependent behavior during staged-construction analysis improved to better enforce equilibrium after large loadincrements.

Bridge Design

Superstructure design according to CSA S6-14 added.

Superstructure design code selection

It is now possible to specify the location of steel I-girder splices, including the net to grossarea ratio of the flanges in order to perform the design checks at these locations using the

reduced flange area.

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Bridge splice assignment

Superstructure design and rating of steel I-girder bridges according to AASHTO LRFDenhanced to consider a detailed calculation of the moment-gradient factor Cb.

Output and Display

Contour plots now available for frame deflections and axial stresses.

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Color displacement contours of multi-span bridge

It is now possible to output the vehicle position for moving load analysis, for a specifiedmax/min force component at a particular location.

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Vehicle location output

CSiBridge 2015 17.3.0 Enhancements

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Modeling

Curved frame members are now displayed in extruded views.

Extruded curved frame members

Arbitrary placement of support bearings at bents and abutments for concrete box-girderbridges.

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Arbitrary bearing placement definition

Time dependent creep and shrinkage curves for CEB FIP-2010, ACI 209R-92, and user-defined.

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Creep and Shrinkage curves

Output

Steel I-girder and U-girder tabular design output for all load combinations at each designstation.

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Display options of tabular design output.

Design

AASHTO LRFD 2012 6th Edition and 2014 7th Edition concrete frame design.

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CSiBridge concrete frame design code selection

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CSiBridge 2015 17.2.0 EnhancementsModeling

Segmental bridge template and wizard for quick definition of spans and segments aswell as tendon layout.

Segment labeling scheme

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Span-by-span segment definition

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Cantilever tendon definition and layout

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Tendon anchors and ducts layout

New solid concrete girder deck section.

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Concrete solid girder deck section definition

Nonprismatic variation of concrete U-girder sections.

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Nonprismatic U-girder bridge with cutaway to show horizontal bracing

Section designer now allows prestress tendons to be defined for any concrete sections.

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Concrete section with prestress tendons.

Standard vehicles are now defined in XML libraries, allowing users to create theirown custom libraries.

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HL-93S vehicle from the AASHTO vehicle library

Standard precast concreate I, U, and bulb-tee girders are now defined in XMLlibraries, allowing users to create their own custom libraries.

Caltrans CA TUB73 precast-U girder from the Caltrans frame section libraryAnalysis

Horizontal influence-based moving loads for braking/acceleration and centrifugal

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Influence surface for transverse moving load and wheel reactions due to centrifugalforce.

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Vehicle horizontal loading definitionDesign

Superstructure design according to AASHTO LRFD 2014 (7th Edition), including the2015 interim revisions.

Superstructure design preferences showing supported design codes

Superstructure rating 2014 and 2015 interim revisions according to AASHTO.

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Rating preferences showing supported interim revisions to AASHTO Rating 2010Output and Display

Superstructure displacements for the entire section along the layout line and forindividual girders or webs along their individual lines.

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Girder response plot showing 10th point displacements

Scale factors are now available for time-dependent creep, shrinkage, and stiffness ofconcrete, as well as relaxation of tendons.

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Concrete material time dependent properties

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CSiBridge 2015 17.1.0 and 17.1.1 Enhancements

The following Enhancements have been implemented for SAP2000 v17.1.0 and17.1.1:

The window refresh speed for Classical Plus graphics has been improved. The speed of analysis has been increased. Other minor enhancements.

The following Enhancements have been implemented for CSiBridge 2015v17.0.0:

The responsiveness of the user interface has been improved.The DirectX graphics functionality has been enhanced.A friction-spring hysteretic damper has been implemented as a new link property.

The force-displacement relationship exhibits linear slipping stiffness when loading,but unloads with a smaller slipping stiffness. A pre-compression displacement and adisplacement stop-limit may be specified.

A bilinear Maxwell damper has been implemented as a new link property. This deviceis a linear spring in series with a dashpot whose force-velocity relationship exhibitsbilinear viscous behavior, typical of certain oil dampers having a relief valve.

Improved convergence behavior and increased speed for nonlinear static and direct-integration time-history analysis.

Increased speed of moving load analysis by parallelization.Superstructure design checking has been extended to include composite bridge

superstructures with steel U-girders according to the Canadian CAN/CSA-S6-06 code.Superstructure design checking has been extended to include composite bridge

superstructures with steel U-girders according to the Indian IRC-2011 code.Superstructure design checking has been implemented for concrete superstructure

sections according to the Russian SNiP 2.05.03-84 code. Superstructure typessupported include prestressed concrete box girders and composite sections withprecast I-girders and U-girders.

Superstructure design reports have been enhanced to include step-by-step detailedoutput, including equations and code references. These are currently available forAASHTO LRFD 2007 and 2012, for multi-cell concrete box shear and flexure checksand precast composite I-beam shear and flexure checks.

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A traditional menu has been added as an alternative to the ribbon. Users can switchbetween the two options.

The ribbon style has been updated to be similar to current Microsoft applications.Other minor enhancements.

CSiBridge 2014 V16.1.0 Enhancements

Significant enhancements included in CSiBridge 2014 (v16.1.0):

Superstructure design checking has been implemented for steel superstructuresections according to the Indian Roads Congress code IRC:22-2008. Superstructuretypes supported include steel I-girders and hybrid I-girders with composite concretedeck.

Superstructure design checking has been extended to include composite bridgesuperstructures with steel U-girders according to the "Eurocode EN 1994-2" code (EN1994-2:2005, Eurocode 4: Design of composite steel and concrete structures - Part 2:General rules and rules for bridges).

Superstructure design checking has been updated according to the AASHTO LRFDBridge Design Specifications, 6th Edition, 2013 Interim Revisions. In addition, AASHTObridge rating accounts for the 2013 interim revisions, and AASHTO seismic bridgedesign accounts for the 2012 and 2014 interim revisions.

Concrete frame design is now available according to Eurocode 2-2004, includingEurocode 8-2004 seismic requirements.

Steel frame design is now available according to Eurocode 3-2005, includingEurocode 8-2004 seismic requirements.

An enhancement has been implemented for defining tendons in the Bridge Modelerwhere the options to move and copy tendons now take into account any existingparametric variations that affect the location and inclination of the girders.

The specification of the notional size used for time-dependent creep and shrinkageanalysis has been enhanced to now be specified with the frame and shell sectionproperties instead of with the material property.

A new staged-construction operation “Change Section & Age” is nowavailable allowing specification of the “Age at Add” when changing frame sections orshell sections.

The bridge modeler now allows individual bridge objects to be locked to preventupdating their linked models.

Table output can now request the correspondence between the responsecomponents at a single location for additive-, range-, and enveloping-type loadcombinations. Results that admit correspondence includes most displacement, force,and stress response quantities.

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CSiBridge 2014 V16.0.1 and V16.0.2 Enhancements

Significant enhancements include:

Multiple grid systems can be displayed at the same time Multiple mass sources can be defined for modeling alternative dynamic behavior Display of frame design D/C ratios can be limited by a specified threshold value Shear stress, von Mises stress, and principal stress response is now available for

certain frame sections Shell stresses can now be displayed normalized by material strength Bearing pressure on shells from area springs can now be displayed Bridge seismic design report can now be automatically generated by the program or

by using a user-defined XML contents file Import and export of files using the IFC 4 format is now supported

CSiBridge V16.0.0 Enhancements

Significant enhancements included in CSiBridge 2014 v16.0.0 , besides bug fixes:

The memory capacity of the graphical user interface has been increased to handlelarger models.

A new link property has been added to model triple pendulum isolators (bearings). A new frame section property type has been added to model hybrid built-up steel U-

girders. Tendons can now be used to model straight external tendons. New built-in materials have been added for ASTM A709 (steel) and ASTM A772

(tendon). The precast I-girder deck section now permits the use of nonprismatic girders and

staggered diaphragms. A new bridge section type has been added to represent composite steel U-girder

superstructure sections. Superstructure design has been added for the AASHTO LRFD Bridge Design

Specifications, 6th Edition, 2012. Steel superstructure design has been added for Eurocode EN 1994-2. Steel superstructure design has been added for the Canadian CAN/CSA- S6-06 code. Concrete superstructure design has been added for the India Roads Congress

IRC:112-2011 code. U-section steel-girder composite bridge superstructure design has been added for

AASHTO LRFD 2007 and 2012. Automated bridge seismic design is now available for steel columns. Automated bridge seismic design is now available for bridges crossing fault-rupture

zones according to Caltrans Memo to Designers 20-8.

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Automated bridge seismic design has been updated to AASHTO Guide Specificationsfor LRFD Seismic Bridge Design, 2nd Edition, 2011.

Bridge load rating has been added for AASHTO The Manual for Bridge Evaluation, 2ndEdition, 2011.

Load combinations have been added for bridge design according to the Indian IRC:6-2010 code.

Response spectrum functions have been added for the AASHTO 2012 code. Automated lateral loading has been added for the IBC 2012 code. Automated lateral loading has been added for the Italian NTC 2008 code. Automated lateral loading has been added for Turkish TSC 2007 and TS 498-97 codes. Steel frame design has been added for AISC 360-10 and AISC 341-10 codes. Concrete frame design has been added for the ACI 318-11 code. Other minor enhancements.

CSiBridge V15.2.0 Enhancements

Significant new features:

Design checking has been implemented for concrete superstructure sectionsaccording to the "Eurocode EN 1992-2" code (EN 1992-2:2005, Eurocode 2: Design ofconcrete structures - Part 2: Concrete bridges - design and detailing rules).Superstructure types supported include prestressed concrete box girders andcomposite sections with precast I-girders and U-girders. Separate design checks areprovided for stress, flexural strength, and shear strength using MCFT (modifiedcompression field theory). The effect of mild reinforcing is included as well as theprestress tendons. Live-load distribution factors can be specified by the user ordetermined from detailed 3-D live-load analysis. Design results are displayedgraphically for the entire box section, or on a girder-by-girder basis for multi-celledbox girders and composite sections. Detailed tables showing all results andintermediate values are available for display, printing, and export to Excel or Access.

Load combinations and design load types have been added for bridge designaccording to the code EN 1991-2:2003, Eurocode 1: Actions on structures - Part 2:Traffic loads on bridges.

Vehicle loads have been added bridge design according to EN 1991-2:2003, Eurocode1: Actions on structures - Part 2: Traffic loads on bridges.

Standardized vehicles are now categorized by Region and Standard, making it easierto add and modify new vehicle loads.

A vehicle class is now automatically created for each vehicle so that the user onlyneeds to create vehicle classes when multiple vehicles are to be enveloped.

For the optimization of steel-girder bridge design, the "As Designed" location of webstiffeners last used for recalculating the resistance is now saved if the model isunlocked or saved as a new model when closing the optimization form.

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Steel frame section properties for the AISC Shapes Database Version 14.0 are nowavailable in the section-property database files for U.S Customary and metric units.

The definition of material properties has been enhanced to allow user-definedstandard materials through the use of XML files. Properties are segregated by regionand by code-standard within these files as well as when using the materials in thegraphical user interface.

New Chinese materials are now available to define concrete, steel, rebar, and tendonproperties according to JTG, TB, and GB standards.

Concrete materials are now available having properties consistent with the Spanishcode "EHE - Instrucción de Hormigón Estructural.

Italian material definitions have been added for: (1) Concrete according to standardUNI EN 206-1:2006 and UNI 11104:2004, (2) Steel and rebar according to standardNTC2008.

CSiBridge V15.1.1 Enhancements

Significant new features:

User-defined stress points may now be specified for Section Designer frame sections.Plotting of bridge superstructure results now includes an option to show the

hyperstatic (or secondary) forces and moments acting on the superstructure cross-section for load cases and combos representing prestressing load.

The OAPI (Open Application Programming Interface) has been changed so thatmultiple instances of CSiBridge can now be started from an external program orscript.

New functionality has been added to the Open API (Open Application ProgramingInterface) for the design codes.

CSiBridge V15.1.0 Enhancements

Significant New Features

Built-in European concrete and steel material properties.Display and output of frame stresses.Load optimization feature to determine the optimal loading scale factors to achieve

goals and limits on displacement and force response throughout the structure.Canadian NBCC 2010 loading for wind, seismic, and response-spectrum.American ASCE-7 loading for wind, seismic, and response-spectrum.Italian NTC 2008 response-spectrum functions with geographic database.

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Specialized bridge groups may now be specified within each bridge object. Eachbridge group applies to a particular type of component (slab, girder, bearing, etc.)and an individual bridge object. Depending on the bridge group type, groups may bedefined for multiple items, multiple longitudinal ranges, and/or multiple transverseranges.

The specification of rebar for the bridge object superstructure has been enhanced.Distances are now measured along each individual girder. Longitudinal rebar islocated relative to the center of the supports or the centers of the girder spans, andshear rebar is located relative to the ends of each girder span.

A new design request type has been added for steel I-girder composite bridgesuperstructures to account for the constructability check according to the "AASHTOLRFD 2007" code, including the 2008 interim provisions. Composite and non-composite behavior can both be considered, with or without using staged-construction analysis.

Bridge load rating has been added for steel I-girder composite bridge superstructuresaccording to the AASHTO "Manual for Bridge Evaluation", First Edition, 2008.Separate rating requests are provided for the service and strength checks of bothcomposite and non-composite superstructures. Live-load distribution factors can beautomatically calculated using code formulae, specified by the user, or determinedfrom a detailed 3-D live-load analysis.

For flexural-strength superstructure design checks by the AASHTO LRFD 2007 code,the effect of user-specified reinforcement is now included for the prestressed box-girder and precast-girder composite sections. Previously only the effect of theconcrete and tendons were included in these checks. The effect of reinforcement forthe slab of steel-girder composite sections was already being considered.

Design checking has been implemented for concrete superstructure sectionsaccording to the Canadian "CAN/CSA-S6-06" code. Superstructure types supportedinclude prestressed concrete box girders and composite sections with precast I-girders and U-girders. Separate design checks are provided for stress, flexuralstrength, and shear strength using MCFT (modified compression field theory). Theeffect of mild reinforcing is included as well as the prestress tendons. Live-loaddistribution factors can be automatically calculated using code formulae, specified bythe user, or determined from detailed 3-D live-load analysis.

Automated load combinations and design load types have been added as requiredfor bridge design according to the Canadian code CSA-S6-06.

Canadian steel frame building design code CSA S16-2009.

CSiBridge V15.0.1 Enhancements

Significant New Features

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A new option has been added for the modeling of I-girders in composite steel-girdersuperstructure sections. In addition to the existing options to model the I-girders asframe objects or as area objects (for both web and flanges), the girders can now bemodeled using area objects for the webs and frame objects for the flanges.

A new bridge seismic design check has been added to the Chinese version thatfollows the Chinese code JTG/T B02-01-2008, "Guidelines for Seismic Design ofHighway Bridges".

Bridge design for prestressed concrete box girder superstructures using Chinese code“JTG-D62-2004” in the Chinese version has been updated as follows: (1) The effect ofexisting longitudinal rebar is now accounted for in flexural design. (2) A new designcheck has been added for tendon stress.

The Chinese 2002 building design codes are available for concrete and steel framedesign in the Chinese version.

Concrete frame design has been enhanced to improve the smoothing of P-M-Minteraction surfaces in those rare cases where they become non-convex due to kinksin the P-M curves.

CSiBridge V15 Enhancements

Computers and Structures, Inc. is proud to release CSiBridge, a new comprehensive state-of-the-art software product for the structural and seismic analysis, design, and rating of simpleand complex bridges. All operations are integrated across a single user interface thatprovides an easy-to-use and intuitive workflow environment. Bridge models are createdparametrically resulting in enhanced productivity, saving engineering time while redefiningthe standards of accuracy and versatility.

Significant New Features

Bridge Wizard

Step-by-step creation of complete bridge modelDetailed guidance for each stepTree view of bridge model updated with each changeAutomatically update model by changing parameters

Bridge Object Model

Switch between spine, shell, and solid models with single clickParametric modeling of steel and concrete deck sectionsConcrete and steel diaphragmsRestrainers and bearingsLinear/nonlinear foundation springs

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Non-prismatic superstructure variationSkewed abutments, bents, and hingesSingle-bearing & double-bearing bentsPrestress tendon layoutSuperelevationCurved beams and girdersDiaphragms and staggered cross-frames

Bridge Modeling Options

Abutments may be modeled as bentsBearing properties and location may be user definedKinematic effects due to abutment and bearing geometries are includedBridges may be analyzed as full 3D-shell or spine models

Layout Lines

Quick definition of highway layoutBearings and stations notationHorizontal and vertical curvesSpiral transitions

Section Designer

Arbitrary steel, concrete, or composite sectionsCaltrans sectionsCalculation of section properties

Automated fiber layout for fiber hingesPMM interaction surfacesMoment-curvature relationships

Parametric Deck Sections

Concrete box girdersFull parametric definition of cross sectionsConcrete tee beam sectionsPrecast I and U girder sectionsSteel girders with composite deckVariable section definition parameters

Lanes and Vehicles

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Lanes based on layout lines or framesWidth effects for lanes and vehiclesAuto transfer of vehicle loads to bridge structureExtensive vehicle library including AASHTO and other codesCustom vehicles

Post-tensioned Box Girders

Quick tendon layoutTendons in frames, shells, and solidsExternal tendonsSecondary force calculationCreep, shrinkage, relaxation, anchorage slip, elastic shortening lossesExplicit time-dependent effects in tendonsAutomatic location of tendons in girders

Foundation Modeling

Pile or spread footingsP-Y multi-liner force deformation assignmentsCompression only soil springsGrade beams as line springsSoil springs properties may be linear on nonlinear

Loading and Analysis

Moving loads with 3-D influence surfacesAASHTO, Chinese, or user-defined nonlinear temperature gradients

Multi-step static and dynamic moving load analysisResponse spectrum and time-history analysisGeometric and material nonlinearityPushover analysisBuckling analysisMulti-support base excitationResponse spectrum and time-history analysisParametric loading of superstructureLive load distribution by code or analysisTrue dynamic effects of moving live loadsHigh frequency blast dynamics using Wilson FNA

Bridge Analysis Options

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Speed and power of the SAPFire engineLarge Capacity Eigen and Ritz model analysis3D Pushover AnalysisMulti Support Excitation DynamicsEnergy Dissipation DesignsBuckling AnalysisStaged ConstructionLinear and Nonlinear Dynamic Analysis

Staged Construction

Segmental, composite, and other bridge typesGantt chart construction schedulerCreep, shrinkage, and strength changeCamber calculation and shape findingAutomatic cable tensioningAdd/remove elements and loads, change section properties, change supports, modify

frame end releases

Cable Stayed Bridges

Automatic cable shape finderP-Delta plus large displacement geometric nonlinearityCable target force determinationFull 3D gravity, wind and seismic analysis capabilitiesMultiple point excitation for time-history analysisLarge deformation catenary cable analysisAutomatic jacking and cable-tensioning controlShape-finding for camber calculation

Influence Surfaces

3D Influence surface plots for joints, frames shells and linksInfluence line or surface plots for joint displacement or reactionsPlots as contoursPlots along lane center or lane widths

Bridge Design

Bridge Superstructure Design:

o Composite Steel Girder (AASHTO LRFD 2007 and 2008 interims)o Precast I and U Girder (AASHTO LRFD 2007)

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o Concrete Box Girder (AASHTO LRFD 2007)o Principal stress checks

Automatic load combinationsDesign checks include:

o Stress checkso Shear checkso Flexure checkso Principal stress checks

Results and Output

Animated displacement and stress plotsGraphical results on screenTabular output to Microsoft ExcelAnalysis and Design report in Microsoft Word format

Bridge Rating

Concrete box girder bridges (AASHTO LRFR 2005)Precast I and U girder bridges (AASHTO LRFR 2005)

Bridge Animations

Create real time movie files showing time-history and moving vehicle responsesInclude multiple vehiclesDisplays may include displacements and stresses