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


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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


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.


CSiBridgeis specialized analysis and design software tailored for the engineering of bridge systems. Suspension, cable-stay, elevated-roadway, and other types of bridge systems may be modeled and designed to suit any one of a variety of purposes, including means for crossing water, linking points between shear terrain, or extending over highway infrastructure. Customized controls and features integrate across a powerful object-based modeling environment to offer an intuitive, practical, and productive computational tool for bridge engineering. Advanced modeling features and sophisticated analysis techniques account for dynamic effects, inelastic behavior, and geometric nonlinearity. Code-based templates streamline the engineering process from model definition through analysis, design optimization, and the generation of comprehensive output reports. CSiBridge is the premier software for bridge engineering.
Completely integrated within the CSiBridge design package is the power of theSAPFireanalysis engine, including staged construction, creep and shrinkage analysis, cable tensioning to target forces, camber and shape finding, geometric nonlinearity (P-delta and large displacements), material nonlinearity (superstructure, bearings, substructure and soil supports), buckling and static and dynamic analysis. All of these apply to a single comprehensive model. In addition, AASHTO LRFD design is included with automated load combinations, superstructure design and the latest seismic design.
CSiBridge's Watch & learns
Founded in 1975,Computers and Structures, Inc. (CSI)is recognized globally as the pioneering leader in software tools for structural and earthquake engineering. Software from CSI is used by thousands of engineering firms in over 160 countries for the design of major projects, including the Taipei 101 Tower in Taiwan, One World Trade Center in New York, the 2008 Olympics Birds Nest Stadium in Beijing and the cable-stayed Centenario Bridge over the Panama Canal. CSI's software is backed by more than three decades of research and development, making it the trusted choice of sophisticated design professionals everywhere.