Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Response Analysis of Highway Bridge with Pier Wall
https://orcid.org/http://orcid.org/0000-0002-8448-238X
https://orcid.org/http://orcid.org/0000-0001-7470-9459
Wall-pier highway bridge is one major bridge type in seismic zones around the globe. Unlike well-designed bridge columns dominated by seismic flexural damage, pier walls in a bridge system exhibit unsymmetric and heterogeneous behaviour under seismic loading. In particular, they feature distinct seismic damage modes along the two principal axes, i.e. out-of-plane bending failure in the weak-axis direction versus in-plane shear failure in the strong-axis direction. Such a complex seismic behaviour is combined with the fact that earthquake ground excitations may cause the bridge pier wall to respond in any non-principal direction that couples out-of-plane bending with in-plane shear. Despite this complexity, seismic responses of highway bridges designed with pier walls have rarely been examined in the literature. This study fills the research gap by analysing the seismic performance of a wall-pier bridge using nonlinear time history analyses (NTHAs). A high-fidelity finite element model of the wall-pier bridge is developed using OpenSees, where modelling considerations for different bridge components are discussed in detail. Specifically, fibre-type displacement-based beam-column elements are utilised to simulate the bending and shear behaviour of the wall pier along the two principal directions. The effectiveness of using this modelling strategy is validated against previous experimental results. Besides, zero-length spring elements with various force–displacement constitutive models are used to capture the dynamic interplay of abutment components and bridge foundations. Representative ground motion records are selected to perform NTHAs on the numerical model of the bridge system. Finally, the time history force–displacement hysteretic responses of various bridge components are investigated, focusing on the pier wall performance along different response directions. This study lays a technical foundation for the earthquake engineering community to analyse, design, and protect wall-pier highway bridges against seismic hazards.
Seismic Response Analysis of Highway Bridge with Pier Wall
https://orcid.org/http://orcid.org/0000-0002-8448-238X
https://orcid.org/http://orcid.org/0000-0001-7470-9459
Wall-pier highway bridge is one major bridge type in seismic zones around the globe. Unlike well-designed bridge columns dominated by seismic flexural damage, pier walls in a bridge system exhibit unsymmetric and heterogeneous behaviour under seismic loading. In particular, they feature distinct seismic damage modes along the two principal axes, i.e. out-of-plane bending failure in the weak-axis direction versus in-plane shear failure in the strong-axis direction. Such a complex seismic behaviour is combined with the fact that earthquake ground excitations may cause the bridge pier wall to respond in any non-principal direction that couples out-of-plane bending with in-plane shear. Despite this complexity, seismic responses of highway bridges designed with pier walls have rarely been examined in the literature. This study fills the research gap by analysing the seismic performance of a wall-pier bridge using nonlinear time history analyses (NTHAs). A high-fidelity finite element model of the wall-pier bridge is developed using OpenSees, where modelling considerations for different bridge components are discussed in detail. Specifically, fibre-type displacement-based beam-column elements are utilised to simulate the bending and shear behaviour of the wall pier along the two principal directions. The effectiveness of using this modelling strategy is validated against previous experimental results. Besides, zero-length spring elements with various force–displacement constitutive models are used to capture the dynamic interplay of abutment components and bridge foundations. Representative ground motion records are selected to perform NTHAs on the numerical model of the bridge system. Finally, the time history force–displacement hysteretic responses of various bridge components are investigated, focusing on the pier wall performance along different response directions. This study lays a technical foundation for the earthquake engineering community to analyse, design, and protect wall-pier highway bridges against seismic hazards.
Seismic Response Analysis of Highway Bridge with Pier Wall
https://orcid.org/http://orcid.org/0000-0002-8448-238X
https://orcid.org/http://orcid.org/0000-0001-7470-9459
Wall-pier highway bridge is one major bridge type in seismic zones around the globe. Unlike well-designed bridge columns dominated by seismic flexural damage, pier walls in a bridge system exhibit unsymmetric and heterogeneous behaviour under seismic loading. In particular, they feature distinct seismic damage modes along the two principal axes, i.e. out-of-plane bending failure in the weak-axis direction versus in-plane shear failure in the strong-axis direction. Such a complex seismic behaviour is combined with the fact that earthquake ground excitations may cause the bridge pier wall to respond in any non-principal direction that couples out-of-plane bending with in-plane shear. Despite this complexity, seismic responses of highway bridges designed with pier walls have rarely been examined in the literature. This study fills the research gap by analysing the seismic performance of a wall-pier bridge using nonlinear time history analyses (NTHAs). A high-fidelity finite element model of the wall-pier bridge is developed using OpenSees, where modelling considerations for different bridge components are discussed in detail. Specifically, fibre-type displacement-based beam-column elements are utilised to simulate the bending and shear behaviour of the wall pier along the two principal directions. The effectiveness of using this modelling strategy is validated against previous experimental results. Besides, zero-length spring elements with various force–displacement constitutive models are used to capture the dynamic interplay of abutment components and bridge foundations. Representative ground motion records are selected to perform NTHAs on the numerical model of the bridge system. Finally, the time history force–displacement hysteretic responses of various bridge components are investigated, focusing on the pier wall performance along different response directions. This study lays a technical foundation for the earthquake engineering community to analyse, design, and protect wall-pier highway bridges against seismic hazards.
Seismic Response Analysis of Highway Bridge with Pier Wall
Lecture Notes in Civil Engineering
Desjardins, Serge (Herausgeber:in) / Poitras, Gérard J. (Herausgeber:in) / El Damatty, Ashraf (Herausgeber:in) / Elshaer, Ahmed (Herausgeber:in) / Song, Sirui (Autor:in) / Xie, Yazhou (Autor:in)
Canadian Society of Civil Engineering Annual Conference ; 2023 ; Moncton, NB, Canada
Proceedings of the Canadian Society for Civil Engineering Annual Conference 2023, Volume 11 ; Kapitel: 22 ; 273-285
26.09.2024
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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