抄録
The present paper discussed on seismic collapse behaviour and seismic resistance capacity of single layer reticular domes supported by substructures. Based on the result of elasto-plastic dynamic response analysis depending on various input levels, the values of dynamic seismic performance index dIS and dynamic ductility index dF for the domes are evaluated. To evaluate the value of dF and dIS, critical states of domes are defined by plastic deformation magnification ηθcr of the critical plastic rotation angle θpcr. If ηθcr is assumed to be larger than 2.0, the value of dF is larger than about 1.7. In this case, dIS is greater than 1.2, and it can be judged that the designed domes in this study endure the earthquake motions of safety limit level.
