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

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 107-129
• Serial:
  • Earthquake Engineering and Structural Dynamics
  • Volume: 5
  • Issue Number: 2
  • Publisher: Wiley (John) & Sons, Limited

Subject/Index Terms

• TRT Terms: Bridge abutments; Bridge design; Bridge superstructures; Bridges; Damping (Physics); Dislocation (Geology); Dynamics; Elasticity (Mechanics); Girder bridges; Soils; Structural design
• Uncontrolled Terms: Bridge spans
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

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