Abstract
This present paper discusses on analysis of the collapse mechanism and seismic performance evaluation for the cylindrical latticed shell gymnasium based on elasto-plastic dynamic response analysis. The cylindrical latticed shell supported by ductile substructures is evaluated in this study. The evaluation is based on dynamic ductility index dF and dynamic seismic performance index dIs calculated by Elasto-plastic dynamic response analyses. dF and dIs are index corresponding to a size of critical deformation. And the seismic performance is evaluated in terms of the critical deformation. A half open angle θ, a yield shear force coefficient Cy, a secondary rigidity ratio κ braces on structure and capacity critical deformation of braces are set on numerical parameters, effect the parameters on dF and dIs are investigated. In addition, a comparison between dF evaluated by elasto-plastic dynamic response analysis and dFest estimated by using equivalent linearization method is investigated, and the validity and the applicable range of the proposed estimation method in this study are confirmed.
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