Connection Joint Effects on the Inelastic Dynamic Behaviors of a Single Layer Lattice Dome Subjected to Earthquake Motions

초록

It is discussed how connection affects inealstic dynamic behavior of single layer latticed dome subjected to earthquake motions. Lattice domes with pin, fixed and semi-rigid connection joints and used as study models. Inelastic dynamic buckling analysis with considering initial imperfection is performed. In the analysis, eachmember is modelled by an element that has three plastic springs and another two elastic beams. These spring s are located at two ends and the middle part of each member, respectively and two ealstic beams are located among the. The springs represent material and elastic beam represents the geometrical nonlinearities of the structural member. Two components of earthquake motions are inputted simulataneously in two directions; NS and UD directions.