外殻鋼管付きコンクリート杭を用いた基礎杭頭接合部の弾塑性挙動

抄録

The authors proposed a joint in which vertical double-rib plates are welded on the side of the steel pipe pile and the reinforcing bars connected with their edges. This method had increased the bending moment resistance of the pile head joints with less reinforcing bars. The purpose of this study is to present the calculation formula of the bending moment resistance-rotation angle relationship of the pile head joints. The bending moment resistance of the pile head joints is assumed to be through the summation of resistance of a circular reinforced concrete column with effective diameter and the bearing resistance of the embedded pile head.