Abstract
An examination of the effect of soil creep on structure foundation soil interaction with regard to variation of differential settlement of columns, bending moments in the structure and column loads is presented. The structures considered are three bay portal frames with pin based columns, the foundations considered are strip footings of finite length, and the soil is regarded as being a linear viscoelastic continuum of infinite depth. The adopted cree function is almost linear with log time and thus has the same general form as that commonly observed in laboratory tests. The purpose of the paper is to indicate, in terms of the relative stiffnesses of the structure, foundation and soil, which situations will lead to significant deterioration in conditions for the structure with elapse of time. The effects of changes in most of the parameters of the problems are discussed. Thus the results presented should enable estimates to be made of the changes in the various interaction effects with time, when the creep properties of the soil have been determined.
Published Version
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