(23)リング締結型接合部を用いた屋根型単層円筒ラチスシェルの弾塑性座屈性状

概要

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A novel joint system has been proposed for use in single-layer latticed shell roofs. The joint consists of a number of end plates welded to the end of each member and connected together to a cylindrical core-drum through pre-tensioned hoops. In the present paper, elasto-plastic buckling analysis is performed to investigate the effect of the rigidity of this joint system on the load-carrying capacity of a single-layer latticed cylindrical shell roof. The analysis is based on the finite element method. The large displacement and beam-column effects are taken into consideration through the explicit decomposition of the element deformation into rigid-body and relative displacemenents. The multi-spring model is adopted to model the restoring force characteristics evaluated from the loading tests of the joint unit. The results show that the joint can provide a high buckling strength which is comparable with that of the rigidly-connected latticed shell, promising the feasibility of the proposed joint system.
一般社団法人日本建築学会の論文
1999-03-10