成層地盤における杭基礎の地震時応力に関する一考察

概要

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Characteristics of pile forces under seismic loadings are discussed from view points of inertia forces of super-structures and earth pressures caused by soil motions. A typical building supported by a pile group embedded in a layered soil, which has two- and four-layers profiles, is chosen for studying the pile forces. The substructure method is effectively utilized for the earthquake response analysis in which the group effects of the piles in the layered soil are appropriately included by using the Green functions derived by the thin layer formulation. The resulting pile forces by the analysis are compared with those by a static analysis of a single pile applying the base shearing force at the pile head. These numerical examples indicate that the effects of the earth pressure should be properly considered in the seismic design of pile foundations.
一般社団法人日本建築学会の論文
1988-03-07