STRUCTURE - FOUNDATION INTERACTION AND SOIL CREEP

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 plane portal frames with pin-based columns, the foundations considered are strip footings of finite length, and the soil is regarded as being a linear visco-elastic continuum of infinite depth. The adopted creep 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 problem 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. /Author/TRRL/

  • Corporate Authors:

    University of Sydney

    School of Civil Engineering, Parramatta Road
    Sydney, New South Wales  Australia  2006
  • Authors:
    • Brown, P T
  • Publication Date: 1976-12

Media Info

  • Features: Figures; References;
  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00165699
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Res. Rpt. No. R 300 Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Apr 26 1978 12:00AM