Performance-Based Seismic Fragility and Risk Assessment of Five-Span Continuous Rigid Frame Bridges
| Autor: | Tang Wenlong, Yuanying Meng, Zhao Yangyang, Jianfei Luo, Wang Guangqian, Zhou Jingwen, Fangwen Wu, Usama Ibrahim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
021110 strategic
defence & security studies Article Subject Serviceability (structure) business.industry Computer science Rigid frame 0211 other engineering and technologies 020101 civil engineering 02 engineering and technology Structural engineering Span (engineering) Engineering (General). Civil engineering (General) Bridge (interpersonal) 0201 civil engineering Fragility Seismic hazard Epicenter TA1-2040 business Risk assessment Civil and Structural Engineering |
| Zdroj: | Advances in Civil Engineering, Vol 2021 (2021) |
| ISSN: | 1687-8094 1687-8086 |
| Popis: | Earthquakes can cause serious damage to traffic infrastructures, among which the impact on bridge structure is the most important. Therefore, in order to assess bridges serviceability, it is important to master their damage mechanism and to analyze its probability of occurrence under a given seismic action. Various uncertainties, like the location of epicentre of future earthquakes and their magnitudes, make this task quite challenging. We are also required to consider different earthquake scenarios and the damaged states of bridge components associated with those earthquakes. To suppress these difficulties, this study proposed a new method of performance-based seismic fragility and risk assessment for bridges. The proposed method included three steps: (1) performance-based seismic fragility estimation of a five-span continuous rigid frame bridge, (2) seismic hazard analysis for locations of the bridge, and (3) seismic risk analysis of the bridge. The proposed method that considered the performance of the bridge and the uncertainty in the location of the earthquake epicentre and magnitudes can provide valuable references for seismic-resistant design of multispan continuous rigid frame bridges in the future. |
| Databáze: | OpenAIRE |
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