Spatially variable seismic ground motions and their effect on cable-stayed bridges: The role of the tower.
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Bibliographic Details
| Author(s): |
Eleftheria Anthi Efthymiou
(City University London, London, UK)
Alfredo Camara (City University London, London, UK) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 | ||||
| Published in: | IABSE Congress Stockholm, 2016 | ||||
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| Page(s): | 1084-1091 | ||||
| Total no. of pages: | 8 | ||||
| Year: | 2016 | ||||
| DOI: | 10.2749/stockholm.2016.1071 | ||||
| Abstract: |
This paper focuses on the effect of the spatial variability of the ground motion on the towers of cable-stayed bridges with typical span lengths equal to 200, 400 and 600m. For this work, seismic analysis of the considered bridges is performed, accounting for the different components of the spatial variability namely: incoherence effect and wave passage effect. The response of the towers is examined under various wave propagation velocities. Finally, the discussion is extended to the effect of the angle of incidence of the seismic waves with respect to the axis of the bridge, presenting an extensive study on the seismic demand of the towers. |
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| Keywords: |
cable-stayed bridges seismic action finite element model spatial variability incidence angle
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