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/
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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
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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