Nonlinear Time History Analysis

In LARSA 4D, nonlinear time history is carried out by using a combination of the Newmark-Beta time integration algorithm and the full Newton-Raphson method using iterations within each integration time-step. Excitations can be in the form of force, multi-support displacement, or uniform base acceleration.

In combination with LARSA 4D's inelastic element library, the nonlinear time history analysis can be used to evaluate demand capacity in large, complex structures subject to seismic loads.

Result graphing tools for plotting displacement, relative displacement, force and other time history results are easy to use with multiple output options.