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作者:

Li, Nana (Li, Nana.) | Xu, Weibing (Xu, Weibing.) | Chen, Yanjiang (Chen, Yanjiang.) (学者:陈彦江) | Yan, Weiming (Yan, Weiming.) (学者:闫维明) | Su, Peng (Su, Peng.)

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摘要:

Under seismic action, pounding can significantly affect seismic responses of bridges. At present, influence laws of pounding effect on bridges' seismic responses are not clear, especially, the effect of longitudinal slope is not considered. Here, a 1/10 scale curved bridge model with longitudinal slope was designed and made, and an adjustable pounding test device was designed. Through adjusting pounding clearance, shaking table tests were conducted for the bridge model before and after pounding to study effects of pounding on seismic responses of the model's girder and pier. The results showed that pounding causes the bridge girder's rotary effect to increase and a larger horizontal acceleration response pulse at the girder end; longitudinal slope causes pounding force at lower pier to be larger than that at higher pier and the girder's significant vertical dynamic response; pounding amplifies displacement response at pier's top and increases failure risk of pier under seismic action. © 2019, Editorial Office of Journal of Vibration and Shock. All right reserved.

关键词:

Seismic response Bridges Dynamic response Piers

作者机构:

  • [ 1 ] [Li, Nana]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Xu, Weibing]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Chen, Yanjiang]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Yan, Weiming]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Su, Peng]College of Architecture Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • [xu, weibing]college of architecture engineering, beijing university of technology, beijing; 100124, china

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来源 :

Journal of Vibration and Shock

ISSN: 1000-3835

年份: 2019

期: 13

卷: 38

页码: 135-141 and 163

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 3

ESI高被引论文在榜: 0 展开所有

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