液状化地盤での杭の強震時挙動

概要

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On the seismic design for pile foundations of a building, the piles may be treated a beam on the elastic support, and the design loads are generally determined by the base-shear force of a building applied the top of piles. In the weak stratum, the decrement of the shear modulus due to the liquefaction of sandy soil triggers very large increment of shear strain under the strong seismic motion. Thus, it is of so vital importance in evaluation of design load as to consider not only the base-shear force of a building but also the deformations of soil. In this report, we study the response of the pile foundation in the weak stratum under the strong motion by carrying out the comprehensive numerical analysis for soil-pile-building system with nonlinear effective stress approach.
一般社団法人日本建築学会の論文
2000-03-20