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) ›› 2012, Vol. 31 ›› Issue (3): 357-361.DOI: 10.3969/j.issn.1674-0696.2012.03.01

• •    下一篇

考虑动水压力作用的深水桥墩地震响应分析

张洁,朱东生,张永水,曾金明   

  1. 重庆交通大学土木建筑学院,重庆400074
  • 收稿日期:2011-12-13 修回日期:2012-03-02 出版日期:2012-06-15 发布日期:2015-03-12
  • 作者简介:张洁(1986—),女,山东菏泽人,硕士研究生,主要从事桥梁抗震及结构分析方面的研究。E-mail:zj300600@163.com。
  • 基金资助:
    云南省交通厅交通建设科技项目(2010(A)10-a)

Seismic Response of Piers in Deep Water Considering Hydrodynamic Pressure

Zhang Jie,Zhu Dong-sheng,Zhang Yong-shui,Zeng Jin-ming   

  1. School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2011-12-13 Revised:2012-03-02 Online:2012-06-15 Published:2015-03-12

摘要: 采用附加质量的形式考虑动水压力对桥墩的影响,以ANSYS有限元软件为计算平台,建立单墩模型并进行深 水桥墩地震响应分析。得出动水压力改变桥墩的地震反应特性,增大了桥墩墩顶位移和墩底内力,并且动水压力作 用还与结构本身质量和周期有关等结论。通过对连续梁桥和连续刚构桥的分析,验证了动水压力作用与结构固有 周期有关,随着固有周期的增大,动水压力对结构的影响越小

关键词: 动水压力, Morison方程法, 深水桥墩, 地震响应

Abstract: The additional mass method of water was used to demonstrate the effect of hydrodynamic pressure on the bridge pier. With the help of ANSYS finite element software,a single pier model was established to analyze the seismic response of the bridge pier in deep water. The results show that the hydrodynamic pressure effect changes the seismic response characters of the pier and increases displacement of pier top and the internal force of pier bottom,and the hydrodynamic pressure role is also connected with structure itself and the cycle. Through actual analysis of continuous bridge and continuous rigidframe bridge,the hydrodynamic pressure function has been connected with structure of the innate cycle. Along with the increase of the innate cycle,the influence of the hydrodynamic pressure on the structure decreases.

Key words: hydrodynamic pressure, Morison equation, deep water pier, seismic response

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