Structural Collapse Analysis of Framed Structures under Seismic Excitation

Abstract eng:
This paper presents a numerical procedure which is called the vector form intrinsic finite element (VFIFE, V-5) method. It is used to analyze the nonlinear behavior of structural collapse under seismic excitation. The whole progressive collapse processes of the framed structures in various conditions are also simulated. The numerical procedure in V-5 method provided for new concept to deal with large deformation and rotation from continuous states to discontinuous states. The geometry nonlinear and the nonlinear material have been considered. The damage index of elements is adopted to decide the failure criteria of element joints. In order to simulate the progressive collapse behavior of the structure, the comparison between numerical simulation of V-5 method and shake table experiments demonstrates the accuracy of V-5 method.

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