Research Article

Performance of seismically loaded shearwalls on nonlinear shallow foundations

  1. Prishati Raychowdhury1,†,*,
  2. Tara C. Hutchinson2,‡

Article first published online: 24 MAY 2010

DOI: 10.1002/nag.931

Issue

International Journal for Numerical and Analytical Methods in Geomechanics

International Journal for Numerical and Analytical Methods in Geomechanics

Volume 35, Issue 7, pages 846–858, May 2011

Additional Information

How to Cite

Raychowdhury, P. and Hutchinson, T. C. (2011), Performance of seismically loaded shearwalls on nonlinear shallow foundations. Int. J. Numer. Anal. Meth. Geomech., 35: 846–858. doi: 10.1002/nag.931

Author Information

  1. 1

    Department of Civil Engineering, Indian Institute of Technology, Kanpur, UP 208016, India

  2. 2

    Department of Structural Engineering, University of California, San Diego, La Jolla, CA 92093, U.S.A.

  1. †

    Assistant Professor.

  2. ‡

    Associate Professor.

*Department of Civil Engineering, Indian Institute of Technology, Kanpur, UP 208016, India

  1. †

    Assistant Professor.

  2. ‡

    Associate Professor.

Publication History

  1. Issue published online: 14 APR 2011
  2. Article first published online: 24 MAY 2010
  3. Manuscript Accepted: 17 MAR 2010
  4. Manuscript Revised: 19 JAN 2010
  5. Manuscript Received: 16 JUL 2009

Funded by

  • EERC Program of NSF. Grant Number: EEC-9701568

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Keywords:

  • soil–structure interaction;
  • nonlinear analysis;
  • shallow foundations

Abstract

If utilized, the energy dissipative capability of seismically loaded shallow foundations due to inelastic behavior can result in more economic design, provided the consequences, such as excessive deformations are accounted for. In this article, a Beam-on-Nonlinear-Winkler-Foundation (BNWF) model is used to assess the performance of shearwall-foundation systems with different attributes, when subjected to ground motions of varied hazard levels. The numerical study indicates that the force and drift demands to the shearwall reduce significantly, when nonlinear foundation behavior is realized, while permanent settlement is well below the permissible limit. These results support the concept of shallow foundation capacity mobilization in future design. Copyright © 2010 John Wiley & Sons, Ltd.

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