中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2008, Vol. 27 ›› Issue (S1): 863-866.

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连续刚构桥最大悬臂施工状态抖振响应简化分析

孙延国, 王骑   

  1. 1. 西南交通大学 土木工程学院, 四川 成都 610031
  • 收稿日期:2007-12-01 修回日期:2007-12-11 出版日期:2008-07-20 发布日期:2016-11-14
  • 作者简介:孙延国(1981-),男,山西霍州人,硕士,主要从事桥梁风工程方向研究。E-mail:syg222@163.com;Tel:13688348777。

Simplified Analysis on Buffeting Response of Continuous Rigid Bridge at the Longest Cantilever Construction Stage

SUN Yan-guo, WANG Qi   

  1. School of Civil Engineering, Southwest Jiaotong University, Sichuan Chengdu 610031, China
  • Received:2007-12-01 Revised:2007-12-11 Online:2008-07-20 Published:2016-11-14

摘要: 高墩大跨度连续刚构桥在最大悬臂施工状态下,由于结构刚度尚未完全形成,脉动风将会引起的结构较大的抖振响应,势必会对结构本身以及施工安全造成影响。从实际工程应用出发,在对抖振计算反应谱法进行适当简化的基础上考虑了背景响应的影响,获得了连续刚构桥在最大悬臂施工状态下抖振响应的实用计算公式。最后通过气弹模型风洞试验验证了公式的可靠性。

关键词: 连续刚构桥, 抖振响应, 简化计算公式

Abstract: The continuous rigid frame bridge with high pier and large span is very flexible at the longest cantilever construction stage,and turbulence wind often brings the great buffeting responses,which is going to affect the structure itself and the safety of construction.According to the requirements of practical engineering,the buffeting response spectrum analysis method is simplified,and the applied formula also considering the effect of background response is presented.The reliability of applied formula is verified by the full-scale aero-elastic model in wind tunnel testing.

Key words: continuous rigid frame bridge, buffeting response, simplified formula

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