ANTIPLANE DYNAMIC SOIL-BRIDGE INTERACTION FOR INCIDENT PLAN SH-WAVES

The analysis of dynamic soil-bridge interaction has been performed in three steps. These are: the analysis of input motions, the force-displacment relationships for the foundations, the dynamic analysis of the structure itself, i.e. the bridge. Based on the exact solution of the first two steps, the dynamic interaction of a simple two-dimensional bridge model erected on an elastic half-space has been investigated for a single span case. The two-dimensional model under study consists of an elastic shear girder bridge supported by two rigid abutments and rigid foundations which have a circular cross-section and are welded to the half-space. It has been shown that the dynamic interaction depends on: the incidence angle of plane SH-waves, the ratio of the rigidity of the girder and the soil, the ratio of the girder mass to the mass of the rigid abutment-foundation system, the span of the bridge. The dynamic response of the girder and the effect of the radiative damping in the half-space on the interaction of the girder have been studied. /Author/

  • Corporate Authors:

    Wiley (John) & Sons, Limited

    Baffins Lane
    Chichester, Sussex  England 
  • Authors:
    • Abdel-Ghaffar, A M
    • Trifunac, M D
  • Publication Date: 1977-4

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Filing Info

  • Accession Number: 00167473
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 3 1978 12:00AM