Seismic Response research of Mufti-span Continuous Girder with Column Pier

6th Annual 2018 International Conference on Geo-Spatial Knowledge and Intelligence

Ma, Bin^1^2 ; Ning, Zhiyuan^1 ; Wu, Xiangnan^2 ; Wang, Qin^1 ; Liu, Mingming^1

Xijing University, School of Civil Engineering, Xi'an

710123, China^1

Xi'An University of Technology, School of Civil Engineering and Architecture, Xi'an

710048, China^2

关键词: Continuous beam bridges;    Continuous girders;    Finite element programs;    Fixed supports;    Horizontal forces;    Material performance;    Span bridges;    Transverse seismic response;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/234/1/012010/pdf
DOI  :  10.1088/1755-1315/234/1/012010

来源: IOP

【 摘 要 】

In order to research the seismic responses of the continuous girder with double-column usually used in medium and small span bridges, the dynamic model was established by using the finite element program Midas. The seismic responses data such as the displacement of beam end and pier top, the horizontal force of fixed supports, the shear force and bending moment of the pier bottom were analyzed in the comparison of different spans, pier heights and column diameters of continuous girder. Conclusions are as follow : the longitudinal seismic response in continuous beam bridge is little affected by the spans, while the transverse seismic response is significantly affected. The transverse maximum horizontal force of fixed support is larger than the longitudinal, which indicates that fixed supports of the abutment are more likely to be destroyed. The shear force and bending moment of the transverse pier bottom are both larger than the longitudinal. Rectangular pier can be chosen to make full use of the material performance, which is beneficial in the seismic design. The research can provide references for the seismic design of this kind of bridge.