Research on Dynamic Performance of Large-span Complex Shape Spatial Lattice Shell

Take Qingyang gymnasium in Gansu province as study background in this paper. Nonlinear finite element method is applied. Using finite element software of ANSYS program, through the dynamic time interval analysis about complex spatial shell structure with two calculative models, which were with sub-structure or not. Firstly , the complex spatial shell with sub-structure or not is analyzed under natural vibration Secondly, dynamic response under the effect of 3-dimension El-Centro wave and Taft wave is analyzed; Finally, analyze the influence of different damping radio, different seismic input to its overall performance. The results of study are showed that the effect of the sub-structure can not be ignored. We could consider the flounce of cooperative performance to large-span complex spatial structure in the structural design.

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