[1]WU Fangwen,MENG Yuanying,JI Quanyou,et al.Study of Pounding Analysis of Seismic Response for Long-span Cable-stayed Bridge[J].Journal of Seismological Research,2018,41(02):337-341.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 02
Page number:
337-341
Column:
Public date:
2018-04-20
- Title:
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Study of Pounding Analysis of Seismic Response for Long-span Cable-stayed Bridge
- Author(s):
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WU Fangwen; MENG Yuanying; JI Quanyou; YANG Yuanyuan
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(School of Highway,Chang-an University,Xi’an 710064,Shaanxi,China)
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- Keywords:
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- CLC:
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U442.5+5
- DOI:
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- Abstract:
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The pounding damage at expansion joints of cable-stayed bridge during earthquakes would increase the risk of cable-stayed bridge. In order to study the pounding effects of adjacent girders at expansion joints on seismic responses of main bridge and approach bridges,this research was focused on a cable-stayed bridge. Midas civil was adopted to establish structural dynamic calculation model. Combining with dynamic time history analysis method,this research shows that considering the one sided pounding,the basic cycle of the main bridge and the bridge is close,the collision force is small,the displacement of the main bridge will reduce and the displacement of the bridge beam and the main tower increase when considering the one sided pounding,and the one sided pounding’s effect is greater than the two sided pounding. The one sided pounding has a greater impact on the bridge connected to it.