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 PLUS is LARSA's most advanced license package which includes access to all features developed at LARSA.
Featuring time-dependent material effects, post-tensioning, incremental launching, and vehicle track structure interaction (VTSI) analysis for high-speed railroad bridges, 4D BRIDGE PLUS supports all bridge forms including the following: