Evaluation of Flood-Resistant Capacity of Scoured Bridges

Autor:	Chung Yue Wang, Helsin Wang, Cheng Hsing Chen, Yu Ching Tsai, Jiunn-Shyang Chiou, Yung Yen Ko
Rok vydání:	2014
Předmět:	Pier Engineering Flood myth business.industry Hinge Bridge scour Building and Construction Structural engineering Bridge (interpersonal) Geotechnical engineering Structural health monitoring Bearing capacity Safety Risk Reliability and Quality Pile business Civil and Structural Engineering
Zdroj:	Journal of Performance of Constructed Facilities. 28:61-75
ISSN:	1943-5509 0887-3828
Popis:	The exposure of pier foundations owing to scour significantly reduces the foundation-bearing capacity and diminishes the flood-resistant capacity of a bridge. This paper proposes a nonlinear quasi-static analysis procedure for the performance of bridges with pile foundations under flow-induced loads for the evaluation on the flood-resistant capacity of scoured bridges. The Winkler beam model is adopted for the modeling of the pile-soil system, and the distributed hinge model is utilized to simulate the possible flexural failure of the piles. Soil springs with nonlinear p-y curves are used to represent the nonlinearity of the supporting soil. To demonstrate this procedure, a case study on the Shuang-Yuan Bridge in Taiwan was performed for various flood and scour conditions. This bridge was partially demolished in a major flood event caused by Typhoon Morakot in 2009. According to the analysis results, a possible scenario for the failure of the Shuang-Yuan Bridge is presented, and the proposed metho...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a8f81396a66f7d9239d8f861b3da9eb1 https://doi.org/10.1061/(asce)cf.1943-5509.0000381 Zobrazit plný text záznamu Plný text ve formátu PDF