Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Response of Short Span Continuous Girder Bridge under Spatially Varying Multi-Point Earthquake Waves Excitation
This paper discusses the implications of spatial variation of earthquake ground motion on the dynamic response of a short span continuous girder bridge. The wave passage, incoherence, and site-response effects of earthquake ground motions between the piers on the internal forces are investigated. Four site conditions are considered representing soft soil, sandy soil, firm soil, and rock bed. A finite element model of the short span bridge is built up, and its seismic responses are numerically simulated under five cases: the uniform excitation and the non-uniform excitation considering traveling wave effect, incoherence, and local site effect. The soil-structure interaction is simulated using spring elements. The results show that, for short span continuous girder bridge (25 m in this case), the maximum internal forces of piers are reduced when wave passage effect is taken into account. The spatial effect of the ground motion depends on the properties of the layers of soil. With the decreasing of the stiffness of soil, the shearing force and bending moment at the bottom of piers increase when the short span continuous girder bridge is excited using spatially variable earthquake ground motions.
Response of Short Span Continuous Girder Bridge under Spatially Varying Multi-Point Earthquake Waves Excitation
This paper discusses the implications of spatial variation of earthquake ground motion on the dynamic response of a short span continuous girder bridge. The wave passage, incoherence, and site-response effects of earthquake ground motions between the piers on the internal forces are investigated. Four site conditions are considered representing soft soil, sandy soil, firm soil, and rock bed. A finite element model of the short span bridge is built up, and its seismic responses are numerically simulated under five cases: the uniform excitation and the non-uniform excitation considering traveling wave effect, incoherence, and local site effect. The soil-structure interaction is simulated using spring elements. The results show that, for short span continuous girder bridge (25 m in this case), the maximum internal forces of piers are reduced when wave passage effect is taken into account. The spatial effect of the ground motion depends on the properties of the layers of soil. With the decreasing of the stiffness of soil, the shearing force and bending moment at the bottom of piers increase when the short span continuous girder bridge is excited using spatially variable earthquake ground motions.
Response of Short Span Continuous Girder Bridge under Spatially Varying Multi-Point Earthquake Waves Excitation
Fan, Shuli (Autor:in) / Shi, Yi (Autor:in) / Liu, Chunguang (Autor:in) / Chen, Jianyun (Autor:in)
16th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments ; 2018 ; Cleveland, Ohio
Earth and Space 2018 ; 1018-1026
15.11.2018
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Seismic Performance Analysis of a Multi-Span Continuous Girder Bridge under Multi-Excitation
| British Library Online Contents | 2013
Seismic Performance Analysis of a Multi-Span Continuous Girder Bridge under Multi-Excitation
| Trans Tech Publications | 2013
| British Library Online Contents | 2016