Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Performance Assessment of Pile-Supported Bridges in Extreme Flood Conditions
Scour has been reported as the cause of approximately half of bridge failures in the United States. It alters static and dynamic characteristics of bridges, which can lead to excessive deflections, and subsequent bridge failures. To estimate the response of bridges under scoured conditions, comprehensive models of representative bridges that overpass waterways are developed in this study. The bridge models account for i) the nonlinear soil-pile-structure interactions, ii) the nonlinearity inherent in abutments and columns, and iii) the contribution of superstructure. Different types of scour, including local scour, general scour, and aggradation and degradation are investigated and their effects on the bridge structural system are quantified. In addition, a set of scour scenarios are introduced to represent various scour intensities that a bridge may experience during its life cycle. The outcome of this study is an efficient approach that can be used for the design and assessment of bridges subjected to extreme flooding conditions.
Performance Assessment of Pile-Supported Bridges in Extreme Flood Conditions
Scour has been reported as the cause of approximately half of bridge failures in the United States. It alters static and dynamic characteristics of bridges, which can lead to excessive deflections, and subsequent bridge failures. To estimate the response of bridges under scoured conditions, comprehensive models of representative bridges that overpass waterways are developed in this study. The bridge models account for i) the nonlinear soil-pile-structure interactions, ii) the nonlinearity inherent in abutments and columns, and iii) the contribution of superstructure. Different types of scour, including local scour, general scour, and aggradation and degradation are investigated and their effects on the bridge structural system are quantified. In addition, a set of scour scenarios are introduced to represent various scour intensities that a bridge may experience during its life cycle. The outcome of this study is an efficient approach that can be used for the design and assessment of bridges subjected to extreme flooding conditions.
Performance Assessment of Pile-Supported Bridges in Extreme Flood Conditions
Klinga, J. V. (Autor:in) / Alipour, A. (Autor:in)
Structures Congress 2013 ; 2013 ; Pittsburgh, Pennsylvania, United States
Structures Congress 2013 ; 457-466
30.04.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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