LARSA 4D's Steel Bridge Module uses a wizard-like interface to simplify 3D model generation for complex I, box, and tub girder bridges, while providing fully integrated AASHTO compliant code check and load rating tools, along with the ability to move beyond typical grillage analysis to utilize influence surface based live load.
LARSA's Section Composer is a graphical companion tool for modeling arbitrary sections for use in LARSA 4D. Section Composer supports standard, parametric, nonprismatic, and custom shape sections
4D BRIDGE is LARSA's #1 software package in use at leading bridge design and analysis firms throughout the United States and abroad.
Featuring LARSA's nonlinear element library and advanced analysis options for seismic and nonlinear time history analysis, 4D BRIDGE supports the following bridge types: