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Bridge Design / Components
Bridge Rehabilitation


LARSA 4D analysis and design software from New York based LARSA, Inc. addresses the specialized needs of cable-stayed, suspension, curved, skewed, and other bridge forms, as well as structures requiring geometric nonlinearity or a staged analysis. Standard in leading U.S. firms for bridge design and construction analysis, LARSA pioneers innovation in analysis and support by working closely with its clients.

At the heart of LARSA 4D is a staged construction analysis which features material and geometric nonlinearity, along with “4D” material time effects to provide a proven foundation for advanced projects. Recently released, LARSA 4D's Steel Bridge Design Module provides a simplified environment for the modeling of curved and skewed steel girder bridges, while supporting AASHTO LRFR rating and integrated AASHTO LRFD code check.