Seismic Vulnerability Analysis of Cable-Stayed Bridges with Steel-Concrete Composite Beams Considering Erosion by Wind and Sand

DOI

10.2991/978-94-6463-610-9_24How to use a DOI?

Keywords

steel-concrete composite girder cable-stayed bridge; erosion by wind and sand; seismic vulnerability analysis

Abstract

Due to erosion by wind and sand, the steel beam coating of cable-stayed bridge becomes thin or even falls off, resulting in corrosion of steel beam. In addition, the strength of concrete tower columns also decreases due to the erosion area of sand. In order to study the damage of the main bridge, cable and column of the steel-concrete composite cable-stayed bridge with consolidated pier and tower beams during the whole life cycle, the ground peak acceleration was used as the seismic input strength index, and the damage and failure probability of the steel-concrete composite cable-stayed bridge were studied based on IDA vulnerability analysis method. The results show that: From the perspective of the vulnerability analysis of the whole bridge, the damage probability of all structures under the action of earthquake is basically the same within 20 years after the initial construction of the bridge. When rare earthquakes come, all structures basically fail at the same time. However, after 20 years, the damage probability of the structure is main beam > cable tower > cable tower. The safety reserve of the cable is higher.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Wei Si
AU  - Fangjun Wang
AU  - Yanan Huang
AU  - Liwei Zhang
AU  - Yonggang Hou
AU  - Mingbo Ding
PY  - 2024
DA  - 2024/12/16
TI  - Seismic Vulnerability Analysis of Cable-Stayed Bridges with Steel-Concrete Composite Beams Considering Erosion by Wind and Sand
BT  - Proceedings of the 2024 International Conference on Rail Transit and Transportation (ICRTT 2024)
PB  - Atlantis Press
SP  - 211
EP  - 221
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-610-9_24
DO  - 10.2991/978-94-6463-610-9_24
ID  - Si2024
ER  -