地中分割連続壁と杭の複合基礎の非線形地震応答解析

概要

論文の詳細を見る
The previous paper described the earthquake response characteristics of composite foundation of wall and piles. The wall foundation is actually constructed by some separating panels and no structural fastener connects to each other. The split wall model is investigated by 3D FEM. It is found the split wall foundation shows the better performance to the severe earthquake than the uniform wall foundation. But the local stress exceeds elastic limit, the nonlinear analyses should be conducted in order to discuss the seismic performance of split wall foundation. The simplified beam model is constructed for split wall foundation, and demonstrates the elastic characteristics are comparable to the former rigorous model. The nonlinear characteristics of split walls and piles are evaluated by practical method; finally, the nonlinear step-by-step earthquake response analyses are carried out. The split walls located at flange position are subjected to large kinematic interaction force and large anti-plane bending moment is induced, but less than yield stress of re-bar. Also the large in-plane bending moment is generated at web position, but stress level is only the crack of concrete occurred.
社団法人日本建築学会の論文
2001-10-30