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) ›› 2014, Vol. 33 ›› Issue (5): 23-28.DOI: 10.3969/j.issn.1674-0696.2014.05.05

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动水压力对深水桥梁地震响应的影响

张洁1,曾金明2,朱东生3   

  1. 1.武昌工学院,湖北 武汉 430065;2.中交第二公路勘察设计研究院有限公司,湖北 武汉 430056;3.重庆交通大学 土木建筑学院,重庆 400074
  • 收稿日期:2013-05-26 修回日期:2013-06-26 出版日期:2014-10-15 发布日期:2015-03-10
  • 作者简介:张洁(1986—),女,山东菏泽人,助教,硕士,主要从事桥梁抗震及结构分析方面的研究。E-mail:zj300600@163.com。

Influence of Hydrodynamic Pressure on Seismic Response of Piers in Deep Water

Zhang Jie1, Zeng Jinming2, Zhu Dongsheng3   

  1. 1.Wuchang Institute of Technology, Wuhan 430065, Hubei, China;2. CCCC Second Highway Consultants Co. Ltd., Wuhan 430065, Hubei, China; 3. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, China
  • Received:2013-05-26 Revised:2013-06-26 Online:2014-10-15 Published:2015-03-10

摘要: 以一深水桥梁为研究对象,采用Morison方程和辐射波浪理论两种方法考虑动水压力对深水桥墩进行线性、非线性地震响应分析,比较了两种不同方法计算的动水压力对桥墩地震响应影响的差异。得出了两种不同方法计算的动水压力都增大了桥墩结构的动力响应,并且采用辐射波浪理论计算的动水压力影响值大于采用Morison方程计算的影响值;当深水桥梁在强震作用下进入非线性后,应该采用非线性分析方法分析桥梁的地震响应;在水深较大时,采用规范规定的动水压力是偏不安全的。

关键词: 桥梁工程, 动水压力, 辐射波浪理论, 深水桥墩

Abstract: Taking a deep water pier bridge as the research project, the linear and nonlinear analysis on hydrodynamic pressure on seismic response of deep-water piers were carried out by Morison equation and the radiation wave theory. The influence results of hydrodynamic pressure on seismic response of piers calculated by above two methods were compared and the difference was obtained. The results show that in both methods the hydrodynamic pressure increases the structure dynamic response of the piers, and the influence value obtained by the radiation wave theory method is lager than that obtained by Morison equation; nonlinear analysis methods to analyze the seismic response of the bridge should be used when deep-water bridges enter the nonlinear state under strong seismic response; adopting the hydrodynamic pressure in the specification is not safe when the water depth is larger.

Key words: bridge engineering;hydrodynamic pressure;radiation wave theory, deep water pier

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