Study on seismic response of the typical bridge with hyperbolic surface friction pendulum bearings
Received:July 23, 2016  Revised:October 31, 2016
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DOI:10.7511/jslx201704021
KeyWord:hyperbolic surface friction pendulum bearing  stud rupture  parameter analysis  nonlinear time history analysis method  pile-soil interaction  secondary dead load
              
AuthorInstitution
廖平 西南交通大学 土木工程学院 桥梁系, 成都
赵人达 西南交通大学 土木工程学院 桥梁系, 成都
贾毅 西南交通大学 土木工程学院 桥梁系, 成都
邱新林 广东省南粤交通潮漳高速公路管理中心, 广州
庞立果 广东省南粤交通潮漳高速公路管理中心, 广州
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Abstract:
      In order to study the effect of different factors on seismic response of typical highway bridge with hyperbolic surface friction pendulum bearings in high earthquake intensity area of eastern Guangdong,Chao'an Hanjiang River Bridge with spans of (55+4×90+55) m was selected as the research object.The hyperbolic surface friction pendulum bearings were used in this bridge.The full bridge model was established by using the finite element software ANSYS,and the effect of different factors on seismic response of the bridge structure was studied by a time history analysis method.Research shows that:pile-soil interaction has a great influence on seismic response at each pier bottom under the longitudinal ground motion excitation;moment and shear force distribution at the bottom of each pier are more uniform when all studs are cut off than no studs cut.The fixed bearings studs of the pier are not cut,which will increase the shear of the bearing,shear force and moment of this pier.But there is only a small influence on other piers.This research result can be used in seismic response analysis of bridges with hyperbolic surface friction pendulum bearings including studs.