A reliability-based approach for the impact vulnerability assessment of bridge piers subjected to debris flows
文献类型：期刊论文
| 作者 | Yan Shuaixing1,2 ; He Siming1,2,5; Deng Yu1,2; Liu Wei1,2; Wang Dongpo3; Shen Fei4
|
| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 269页码:105567 |
| 关键词 | Mabian landslide Consequent slope Numerical modeling Dynamic process |
| ISSN号 | 0013-7952 |
| DOI | 10.1016/j.enggeo.2020.105567 |
| 产权排序 | 1 |
| 通讯作者 | He, Siming(hsm@imde.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | Bridge piers are typically among the most vulnerable structural members subjected to debris flows. This paper proposes a reliability-based approach based on a nonlinear structural analysis to determine the physical vulnerability curves associated with bridge piers given exposure to debris flow impact. Relevant aleatory and epistemic uncertainties in both hazard and structure are incorporated in the method with the inclusion of a fully probabilistic framework. The high- and low-viscosity debris flows are assessed as being representative of two classes of debris flow for their different load patterns. The load effect on a pier column is considered as the combined effect of slurry and boulder impact, which can be characterized, respectively, by Poisson square wave process and Poisson impulse process. A quantitative displacement-based damage index is defined considering the possible failure modes of the pier column. Using a Monte Carlo simulation, a set of vulnerability curves relative to different hazard intensity measures for high- and low-viscosity debris flow is derived and sensitivity studies are conducted to estimate the influences of hazard inputs. The proposed methodology addresses the geographical restrictions of conventional empirical debris flow vulnerability models and provides a general approach for quantitative risk assessment in hazard-prone areas, thereby forming a basis for subsequent engineering design or risk zoning. |
| 电子版国际标准刊号 | 1872-6917 |
| WOS关键词 | REINFORCED-CONCRETE BUILDINGS ; PHYSICAL VULNERABILITY ; MODELS ; COMBINATIONS ; HAZARDS |
| 资助项目 | National Key Research and Development Program of China[2017YFC1501003] ; National Natural Science Foundation of China[41772312] ; Major Program of the National Natural Science Foundation of China[41790433] ; Key Deployment Project of CAS[KFZD-SW424] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000525399100015 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Program of the National Natural Science Foundation of China ; Key Deployment Project of CAS |
| 源URL | [http://ir.imde.ac.cn/handle/131551/34269]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | He Siming |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China; 4.Sichuan Tianshengyuan Environm Serv Co Ltd, Chengdu 610032, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100081, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yan Shuaixing,He Siming,Deng Yu,et al. A reliability-based approach for the impact vulnerability assessment of bridge piers subjected to debris flows[J]. ENGINEERING GEOLOGY,2020,269:105567. |
| APA | Yan Shuaixing,He Siming,Deng Yu,Liu Wei,Wang Dongpo,&Shen Fei.(2020).A reliability-based approach for the impact vulnerability assessment of bridge piers subjected to debris flows.ENGINEERING GEOLOGY,269,105567. |
| MLA | Yan Shuaixing,et al."A reliability-based approach for the impact vulnerability assessment of bridge piers subjected to debris flows".ENGINEERING GEOLOGY 269(2020):105567. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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