LARSA 4D is structural analysis and design program for bridges and structures. With an established 20-year track record on projects throughout the world, LARSA, Inc. provides the most trusted answers for cable-stay, suspension, stressed-ribbon, curved, skewed and other bridge forms requiring geometric or material nonlinearity or a staged analysis. The LARSA 4D software package consists of an analysis engine with the latest capabilities learned from engineering and software research, a user interface for pre- and post-processing, and design tools.
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