軸力と水平力を受けるくいとフーチングの結合部における応力伝達に関する研究

概要

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Since it was disclosed that the piles and footings of some buildings in Japan were damaged by an earthquake in 1978, many studies on substructures have been made in order to establish a rational aseismic design method for substructures. In this paper, we explain the method of an experiment and analysis made for researching the stress transfer mechanism in the pile-footing connection under axial and lateral forces, and show the effectiveness of the analytical method by comparing the results of analysis with those of the experiment. In the analytical method shown in this paper, the pile-footing connection is modeled as an axisymmetrical structure, and is solved by using the Finite-Element-Method, considering points of contact and separation between the pile and footing in accordance with the results obtained from the experiment. We can reduce the number of unknown factors by using this method, because judgements about contact or separation conditions can be made by study just of the forces and displacements at the FEM mesh nodes on the boundary between pile and footing.
社団法人日本建築学会の論文
1986-05-30