Nonlinear static analysis is a method used to evaluate the behavior of structures under loads that produce significant deformations, capturing the complex material and geometric responses. This analysis is essential for understanding how structures, particularly bridges, behave during seismic events, where the response can be nonlinear due to large displacements and yielding of materials. By incorporating nonlinear effects, engineers can better assess the performance of structures during extreme loading conditions and design effective retrofit strategies.
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