基礎浮上りを考慮した3次元FEMモデルによる原子力施設建屋の水平・鉛直同時入力時の応答性状に関する検討

概要

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The nonlinear behavior of basemat uplift which is an important point in seismic designs of nuclear power plants building. In this paper, models of the building and the soil using 3 dimensional FEM elements with consideration to the nonlinearity of building materials as well as the nonlinearity of the basemat uplift were subjected. The behavior of the building's elements were investigated by carrying out seismic response analyses for horizontal ground motions only, as well as for simultaneous horizontal and vertical ground motions using these models. As a result, it was found that there was little difference in the horizontal response of the building between the horizontal input motions only and the simultaneous horizontal and vertical input motions. The effects of the vertical ground motions on the basemat uplift behavior which is represented by the ground contact ratio were also slight.
一般社団法人日本建築学会の論文
2008-03-25