吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (2): 466-472.doi: 10.13229/j.cnki.jdxbgxb20170023

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Wind resistance performance of long-span continuous rigid-frame bridge in cantilever construction stage

ZHENG Yi-feng1, ZHAO Qun1, BAO Wei1, LI Zhuang2, YU Xiao-fei3   

  1. 1.College of Construction Engineering, Jilin University, Changchun 130026, China;
    2.Northeast Refining & Chemical Engineering Co. Ltd., Jinlin 132001, China;
    3.Forestry Survey and Design Research Institute of Jilin, Changchun 130021, China
  • Online:2018-03-01 Published:2018-03-01

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Abstract: For the three-span rigid-frame continuous bridge with main span of 160 m in Changbai Mountain International Tourism Resort, the dynamic characteristics in each cantilever construction stage was calculated using Midas Civil software, and the characteristics of the vibration mode and frequency of each construction stage were analyzed. First, according to the climate condition at the bridge site, the gust wind speed was calculated, then the wind field area was simulate using Midas FEA software CFD module. Second, the three component coefficient of the maximum cantilever state of the bridge structure was calculated, and then the static gust was obtained. Finally, the simplified calculation method of buffeting force is adopted to analyze the buffeting force of the bridge under the maximum cantilever state, and the safety of the structure under the maximum cantilever state and wind load was evaluated.

Key words: civil engineering, bridge engineering, wind resistance, cantilever construction, static gust load, buffeting force

CLC Number: 

  • U414
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