This paper illustrates several ways in which footing foundations may play an important role in modifying structural behavior through soil-structure inter-action, even when no obvious foundation failures occur. A number of criteria for evaluating the seismic behavior of footing foundations are presented. The ability of columns to transmit moments to footings is evaluated in terms of the relative stiffness of the column, foundation, and girder. The implications of varying degrees of column base fixity are discussed in terms of structural behavior and geotechnical footing design criteria. In order to provide additional criteria for selecting design bearing pressures, the applicability of traditional bearing capacity equations to the case of seismic loadings is examined. Finally, the influence of both individual and group footing compliance is discussed so that the consideration of soil structure interaction effects in the analysis of the seismic forces which act on structures may be extended to the case of footing foundations.

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 380-393

Subject/Index Terms

Filing Info

  • Accession Number: 00179756
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 12 1978 12:00AM