Enhancements

Design

CSA A23.3:2024 concrete frame design is now available.

Structural Model

Solid elements can now include nonlinear concrete material behavior. Currently a Faria concrete damage plasticity model is available.

Bridge Design and Rating

Bridge assessment/rating according to British standard CS 454 is now available.

Bridge Design and Rating

Comprehensive calculation reports in Word format are now available for precast concrete composite bridges designed in accordance with Eurocode EN 1992-2.

Bridge Modeler

Geometry control is now available for the construction of balanced-cantilever segmental bridges.

Bridge Design and Rating

Bridge rating for legacy bridges according to AASHTO MBE Section 6, Part B, along with resistance calculated based on AASHTO 17th Edition, 2002 is now available.

Loading

Multi-step moving-load analysis has been enhanced to now include horizontal loads.

Cloud Sign-in Licensing

Sign-in licensing now uses the system browser for a smoother authentication experience. Remote check out licensing has also been added for dark site or air-gapped machines that do not have internet access.

Analysis

Greater control over link-elements in models with large displacements has been added. This new behavior applies to nonlinear static, direct-integration, and staged-construction load cases where the geometric nonlinearity parameter has been set to P-Delta plus Large Displacements.

Bridge Design and Rating

2024 Caltrans amendments to AASHTO LRFD bridge design have been added.

Bridge Design and Rating

IRC 112-2020 superstructure design of concrete bridges has been added, along with load combinations according to IRC 6-2017.

Bridge Design and Rating

Eurocode superstructure design of concrete T-beam bridges has been added.

Documentation

The CSI Analysis Reference Manual has been updated to include content for minor existing features that were previously only described in the Help, as well as for style and improved ability to search within the PDF file.

Bridge Modeler

Bridge layout lines can now include a highway curve with unequal spirals or individual spiral segments.

Bridge Design and Rating

Comprehensive calculation reports for Eurocode substructure column strength checks are now available.

Structural Model

A new link property Sumitomo Viscoelastic Damper has been added to represent high-damping rubber vibration control damper devices produced by Sumitomo Rubber Industries.

Bridge Modeler

A concrete voided slab bridge deck section has been added.

Bridge Modeler

Pile pier and shaft pier foundations can now be assigned to wall bents.

Bridge Design and Rating

AS 5100.5:2017 bridge superstructure design of precast concrete I-girder, U-girder, box-girder, and Super-T bridge sections has been added.

Bridge Design and Rating

CAN/CSA S6-19 bridge superstructure design and rating has been added.

Bridge Design and Rating

Strength design of substructure (bent) columns has been added according to Eurocode 2-2004, including design results display.

Output and Display

Frame force/moment diagrams can now be displayed with colored contours.

Output and Display

The CSiBridge API has been updated to support .NET 8.

Loading

Automated bridge wind loading according to AASHTO 2020 9th Edition has been added.

Bridge Design and Rating

Comprehensive calculation reports for IRC-112 column service checks have been added.

Bridge Modeler

The ability to model two-way sloping (crowned) bridge decks is now available.

Bridge Design and Rating

New Zealand NZTA automated bridge design load combinations have been updated according to the latest NZTA BM 3.4 code.

Bridge Design and Rating

Superstructure design and corresponding comprehensive calculation reports according to New Zealand NZTA BM 3.4 are now available for precast I, precast U, precast box, and super-T girders with composite slab.

Bridge Design and Rating

Service cracking check of bent columns according to IRC 112-2020 has been added.

Bridge Design and Rating

Comprehensive calculation reports for AASHTO non-composite steel I-girder strength and service rating requests have been added.

Bridge Modeler

Bottom-flange longitudinal stiffeners can now be specified for steel U-girder bridges using the steel beam editor. The stiffeners are accounted for in analysis as well as superstructure strength design and rating requests. Layout options include the longitudinal start and end position, transverse ratios, orientation and insertion-point location.

Bridge Design and Rating

Superstructure design is now available for precast box girder bridges according to the AASHTO code.

Bridge Design and Rating

Comprehensive calculation reports are now available for superstructure design of multi-cell concrete box-girder bridges according to Eurocode. These provide detailed calculations and diagrams for the flexural demands and flexural resistance for each individual girder.

Cloud Sign-in Licensing

Cloud Sign-in licensing is now available• Access CSI software using secure user credentials — no more activation keys• Access licenses anywhere with internet access• Option to create License Groups to manage who has access to your licenses• Option to remotely terminate an active license session• Option to federate your identity provider (IdP), allowing users to use their familiar company credentials insteadCloud Sign-in Licensing Details

Bridge Modeler

Wall piers can now be defined and included within a bridge model.

Bridge Modeler

A precast-concrete box-girder bridge section has been added. Girders can be in contact or separated. Grouting conditions can be considered, with control available in staged construction.

Bridge Modeler

Layout lines can now include circular segment types.

Bridge Design and Rating

Strength design of bent columns according to IRC 112-2020 has been added.

Bridge Design and Rating

Service cracking check of bent columns according to AASHTO LRFD 2020 has been added.

Structural Model

Frame hinge assignment presets, including distributed plasticity are now available.

Data Files

JGJ/T 483-2020 high-strength steel materials have been added to the Chinese material library.

Database Tables

Detailed data for a single database table row is now available.

Application Programming Interface (API)

A new API has been added that provides access to the bridge modeler and bridge object functionality.

Bridge Design and Rating

Comprehensive design calculation reports have been added for Chinese JTG 3362-2018 bridge superstructure design checks for shear, torsion, and combined shear and torsion.

Loading

Temperature loads can now be applied to rail tracks. Loads can vary along the length of the track. Nonlinear analysis can capture slippage at the track supports, and linear or nonlinear buckling of the track under temperature loading can be analyzed.

Loading

Temperature loads applied to bridge objects are now automatically applied to their tendons when the tendons are modeled as elements.

Bridge Modeler

Simple circles have been added to the definition of bridge layout lines for cases where highway spirals are not needed.

Bridge Design and Rating

The strength design of substructure (bent) columns has been added according to the AASHTO LRFD 2020 code. Design is controlled by defining one or more Design Requests which can specify a set of load combinations, bent columns, column stations, and other parameters to be considered. Results for each Design Request are provided in the form of an Excel spreadsheet that can be used for further calculations and for inclusion in reports. Design results are also available in database tables for display, export, and reporting.

Structural Model

New and updated property libraries: • New Indian frame-property library for steel sections• Updated Chinese frame-property library• New Canadian material-property library

Loading

New Zealand vehicle library has been updated.

Output and Display

New database tables "Bridge Object Forces with Tendons" and "Bridge Object Girder Forces with Tendons", providing the secondary prestress forces on the full bridge section and the individual bridge girders

Output and Display

Improved display of nonlinear hinge states and statuses.

Application Programming Interface (API)

The Application Programming Interface (API) now offers more control for connecting to multiple instances of CSiBridge, a new interface to simplify the development of plugins, and speed enhancements for external .NET clients.

Bridge Modeler

Bridge tendon layout can now be parametrically defined directly with respect to any girder as well as the bridge layout line.

Bridge Modeler

Modeling of closure pours at double-bearing bents for concrete precast I-girder and Super-T girder bridges is now available. This can be used to simulate a live-load continuous superstructure or full integral continuity with the substructure.

Bridge Design and Rating

Bridge superstructure design according to the AASHTO LRFD 2020 code has been added. This new code is also available as a resistance code for superstructure rating.

Bridge Design and Rating

Longitudinal web stiffeners for steel I-girders and steel U-girders can now be modeled on a girder-by-girder basis. These stiffeners are carried through modeling, analysis, design and rating.

Design

Concrete shell design per Eurocode 1992-1-1:2004 has been enhanced, including the ability to set design preferences and national annexes, improved iteration for determining the optimum amount of reinforcement, handling of variable-thickness shells, and the presentation of detailed results in tabular form.

Analysis

Time-dependent behavior of concrete has been added for the AS3600-2018 code, including creep, shrinkage, and age-dependent stiffness.

Analysis

The ability to enable/disabled the coupling between major bending, shear V2, and torsion is now available for channel and general sections.

Loading

New vehicles have been added to the AASHTO Rating and Caltrans libraries.

Design

Steel frame design according to the AASHTO 2020 LRFD code has been added.

Output and Display

Moving load response recovery has been sped up by means of multi-threading for database tables and the bridge object response display.

Output and Display

Superstructure design calculation reports are now available for multicell concrete box and concrete T-beam bridges according to the IRC code.

Modeling

Staged-construction operations Pour Concrete and Remove Forms are now available for Super-T bridge sections. Using these operations, the weight of the wet concrete slab can be applied to the girders in one stage, and the stiffness of the cured slab activated in a subsequent stage.

Loading

The response-spectrum function according to the Chinese JTG/T 2231-01-2020 code has been added.

Analysis

Speed improvements have been made for calculating joint-reaction response for influence-based moving-load cases.

Application Programming Interface (API)

Improved performance and examples for remote API and COM clients.

Loading

Temperature gradient loading has been added according to the IRC:6-2017 code.

Loading

Automatic bridge wind loading has been added according to the IRC:6-2017 code.

Loading

The IRC vehicle library has been expanded to include the Special Vehicle (SV), Fatigue Truck (40T), and 70R Tracked vehicle per the IRC:6-2017 code.

Analysis

Speed improvements to moving load analysis on spine models containing many influence points.

Analysis

Speed improvements nonlinear static, nonlinear multi-step static, and nonlinear direct-integration time-history cases using the advanced or multi-threaded solvers.

Design

Precast Super-T girder design has been implemented according to the NZTA Bridge Manual.

Modeling

Layout lines can now be defined using point-of-intersection data.

Modeling

New Super-T girder and bridge-section definitions have been added, including detailed tendon layout.

Modeling

Job scripting has been added to allow automating several analysis, design and reporting actions into a single command in order to expedite iterative tasks.

User Interface

Database tables can now be accessed via the API for both editing and display purposes.

Cloud Licensing

Cloud-based licensing is now standard for CSiBridge. • Cloud-based server requires no setup • Access licenses outside of company networks and VPNs • Share licenses between users (non-simultaneous) • Check-out a license to work offline Cloud FAQ

Loading

Korean vehicle library available

Design

Detailed design-calculation reports for Concrete T-beam bridge sections per AASHTO LRFD

Analysis

Improved handling of equilibrium unbalances and additional controls for non-iterative event-to-event analyses

Analysis

Speed improvements for nonlinear cases with multi-threaded solver Speed improvements in the recovery of analysis results

Design

AASHTO steel I and U-girder vertical position of longitudinal stiffeners for service and constructability checks

Design

Detailed design-calculation reports for Steel I-girder bridge sections per CAN/CSA-S6

Database Tables

Automatic tabular output to multiple files

Modeling

Bridge-rail interaction modeling is now available, including nonlinear supports representing ballast and clips. Support properties can vary under vehicle load.

Design

Non-zero tension limits for concrete slabs can now be specified for the service checks of steel I-girder and U-girder bridges

Loading

Auto wind loads on area objects can now be distributed to adjoining frames

User Interface

The API can now start and control instances of SAP2000 on remote computers, including the retrieval of results. This enables distributed processing for running large suites of Performance-based Design histories, extensive parameter studies, and Monte Carlo simulations.

Design

Chinese concrete box-girder bridge design has been updated and enhanced to the JTG 3362-2018 code from the 2004 version

Output and Display

Recovery of nonlinear static and direct-integration results has been optimized

Modeling

Steel U-girder section editor is now available for easier definition of plate sizes and vertical web stiffeners.

Modeling

Nonlinear shell analysis is now possible for metals using von Mises (J2) plasticity in layered shells.

Design

Consideration of rebar development length in superstructure design/rating now available per AASHTO LRFD, CAN/CSA-S6, and EUROCODE codes

Structural Components

Parametrically defined detailed foundations, including soil springs, can now be added to a model

Parametric Bridge Modeling

Web- and flange-plate layouts can be printed for steel I-girder bridges, including comprehensive dimensions and steel-weight quantities. The location of stiffeners and diaphragms that define the shear panels are shown on the drawings. The number of spans shown per sheet can be customized.

Analysis

Load cases within a single model can now be run in parallel using multiple machines and combined on a single machine

Design

Concrete box girder bridge design request to determine required tendon area to satisfy stresses under permanent and service load conditions is now available

Output and Display

Load combination results are now available on a step-by-step basis for linear load combinations containing one or more stepped load cases

Parametric Bridge Modeling

Ability to specify steel I-girder plate sizes and web stiffeners prior to running analysis, design, or rating

Analysis

Analysis errors, warnings, and informational messages are now stored and shown after the analysis completes, as well as accessible via database tables

Output and Display

Nonlinear energy component output is now available per group for nonlinear load cases

Design

Steel frame rating has been added for axial demands and user specified resistances

Output and Display

Faster display of results from modal time-history load cases, including FNA, for large models with many modes.

Analysis

Analysis can now run multiple load cases in parallel. This is particularly efficient for considering large suites of earthquakes in Performance-Based Design.

Parametric Bridge Modeling

Quick bridge template enhanced to remember previous settings and provide additional options when creating a new bridge model

Design

Concrete superstructure design according to the Indian IRC-2011 code for flat slab and T-beam bridge sections Concrete superstructure design according to the Indian IRC-2011 code now calculates the required reinforcement quantity.

Design

Detailed reports for CAN/CSA S6 steel I-girder bridge strength design requests Detailed reports for AASHTO steel U-girder bridge strength and service design and rating requests

Parametric Bridge Modeling

Bridge modeler can now generate multiple pairs of braces for steel cross-frames

Parametric Bridge Modeling

Bridge modeler now allows detailed definition of foundations at the bottom of bent columns, including soil springs

Parametric Bridge Modeling

Enhanced modeling of steel cross frame geometry is now available

Output and Display

Named bridge response displays for the GUI and reports are available

User Interface

DirectX graphics is now the default

Loading

User specified haunch loads are now available

Analysis

A new nonlinear multi-step static load case is available

Analysis

Advanced applied load options now available for multi-step static load cases

Loading

Automated wind load on superstructure, substructure, and live load have been added

Parametric Bridge Modeling

Steel cross diaphragms are now available for precast I-girder bridges

Loading

Spectral matching of time history functions for a given response spectrum now available

Modeling

Automated prestress tendon generation based on tendon layouts defined in precast I-girder frame section properties

Parametric Bridge Modeling

The quick bridge template has been expanded to allow defining a more complete model, including substructure, superstructure, loading, and design criteria

Design

Bridge superstructure design has been added according to the AASHTO LRFD 2017 8th Edition code

Parametric Bridge Modeling

Bridge deck section superstructure loads provide the ability to easily model barrier, median, sidewalk, haunch, construction, and wearing surface loads

Parametric Bridge Modeling

User specified diaphragm depths can now be specified for precast I-girder and concrete tee bridges

Analysis

Linear time-history analysis can now be performed in the frequency domain allowing the consideration of frequency-dependent properties, sub-systems, and/or boundary conditions

Parametric Bridge Modeling

User-defined concrete box-girder sections can now be updated as area or solid models for analysis and superstructure design and rating

Output and Display

Strain results are now available for shell and solid objects

Loading

The transverse position of vehicle lanes has been automated for influence-based moving load analysis using floating lane sets.

Analysis

The effect of reinforcing steel on the axial creep and shrinkage behavior of concrete in columns and walls is now included in the time dependent staged-construction analysis.

Tools

Measurements On-screen measuring tools available for measuring length, area, and angles.

Design

Bridge superstructure design checks for precast I-girder and precast U-girder bridges have been implemented according to the BS 5400 British code.

Design

Bridge superstructure design checks for concrete slab bridges have been implemented according to the AASHTO LRFD code.

Modeling

Link Properties New link property for high-damping rubber isolator bearings.

Loading

Guide Structure operation for locating added members during staged construction analysis.

Loading

Simulation of concrete pour operation for the top slab during staged construction of composite bridges.

User Interface

DirectX DirectX graphics has been enhanced for quality and speed.

Modeling

Moment &amp Shear ReleasesMoment and shear releases can now be assigned to the edges of shell-type area objects.

Output and Display

The performance of the Bridge Object Response Display form has been enhanced when plotting previously viewed results.

Design

Bridge Superstructure Design Bridge superstructure design for concrete slab deck sections per Eurocode has been added, including stress, flexural strength, shear strength, and crack checks.

Output and Display

A detailed superstructure design output report for AASHTO steel I-girder strength design has been added.

Modeling

Time-dependent material behavior now available per Eurocode 2-2004, AS 3600-2009, NZS 3101-2006, JTG D62-2004 codes and the GL2000 model. This includes creep and shrinkage strain as well as age-dependent stiffness.

Modeling

Vietnamese Material Libraries Vietnamese concrete and rebar material libraries now available.

Parametric Bridge Modeling

Girder-Only Section Cuts Girder-only section cuts implemented for steel I-girder bridge sections to capture changes in girder sections, staggered diaphragms, and splice locations in individual girders. This also improves the design and rating of steel I-girder sections by better accounting for the controlling section within each panel.

Modeling

Hysteresis Models New and enhanced hysteresis models for nonlinear materials, hinges, and links have been added.

Analysis

Energy Plots Step-by-step energy plots available for nonlinear direct-integration time-history load cases and for nonlinear static/staged-construction load cases.

Parametric Bridge Modeling

Linked Model A new action Clear and Create Linked Model added to the Action dropdown list in Update Bridge Structural Model form. Once selected, the previous program-generated linked model will be cleared (and cleaned) first and a new linked model created.

Analysis

Nonlinear Hinges Model frame nonlinear hinges as links, allowing for use of nonlinear modal time-history analysis (FNA) for faster analysis.

Design

Import Geometry Import geometry from a DXF file into Section Designer.

Modeling

PMM Hinges A new parametric P-M2-M3 frame hinge has been implemented for use with performance-based design and other types of nonlinear analysis