DOI: 10.1007/s11069-020-03931-y
论文题名: Vulnerability assessment of bridges subjected to extreme cyclonic events
作者: Pathiranage T. ; Lokuge W.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 102, 期: 1 起始页码: 401
结束页码: 417
语种: 英语
中文关键词: Bridge failure
; Cyclone
; Fault tree analysis
; Preventive maintenance
; Vulnerability
英文关键词: bridge
; extreme event
; failure analysis
; maintenance
; risk assessment
; tropical cyclone
; vulnerability
; Australia
; Queensland
英文摘要: Over the past few years, Queensland in Australia has suffered from a number of severe tropical cyclones, the most recent one being Marcia, which took place in 2015. Damage bill of Cyclone Marcia exceeded $50 million which included the cost of repairing a number of damaged road structures. Failure of road structures such as bridges isolates communities from accessing essential services and commodities. This necessitated a methodical approach to evaluate the failure of bridges to improve their resilience and provide base knowledge for developing emergency maintenance response. Although there are several methods available to evaluate the vulnerability of bridges, fault tree analysis (FTA) was selected in this study by considering its positive attributes over the other methods. FTA was used to estimate the probabilities of failure of main components (superstructure and substructure) and elements of timber and concrete bridges. Secondary data (level 1 and level 2 bridge inspection reports from Transport Main Roads in Rockhampton) before and after the Cyclone Marcia were used in conjunction with expert advice to construct fault trees for both timber and concrete bridges. Potential failure mechanisms were observed, and the degree of susceptibility of main components of timber and concrete bridges to cyclonic events was evaluated. This research was based on selected bridges under specific cyclone in one region, which is a limitation of the study. Few other case study bridges subjected to cyclonic events can be used to strengthen the understanding of the complete dynamics of the bridge failure under these extreme events. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168668
Appears in Collections: 气候变化与战略
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作者单位: Centre for Future Materials (CFM), School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland (USQ), Springfield, QLD 4300, Australia
Recommended Citation:
Pathiranage T.,Lokuge W.. Vulnerability assessment of bridges subjected to extreme cyclonic events[J]. Natural Hazards,2020-01-01,102(1)