任意光滑截面桥墩地震动水压力分析

摘要
图/表
参考文献(15)
相关文章 (15)

全文: PDF (1175 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要对地震作用下任意光滑截面柱体上的动水压力，提出了一个解析的计算公式。基于辐射波浪理论，采用分离变量法推导了任意光滑截面柱体动水压力的精确计算公式，利用水层模态的正交性并将连续光滑函数展开为傅里叶级数确定计算公式的系数。通过对刚性椭圆形和圆端形截面柱体动水压力的计算表明，提出的动水压力解析公式具有很好的计算精度。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王丕光1
	2
	赵密1
	杜修力1

关键词 ：地震, 动水压力, 任意光滑截面, 解析解

Abstract：An analytical calculation formula was proposed to investigate earthquake induced hydrodynamic pressure on a uniform cylinder with arbitrary smooth cross-section.Based on the radiation wave theory, considering water compressibility, the exact calculation formula for hydrodynamic pressure on a uniform cylinder with arbitrary smooth cross-section was derived with the separating variables method, and its coefficients were determined utilizing the mode orthogonality of water and expanding a continuous smooth function into a Fourier series.The proposed formula was verified through calculating the earthquake induced hydrodynamic pressure on rigid uniform elliptical cylinders and round-ended ones.The results showed that the proposed calculation formula has a higher accuracy.

Key words： earthquake hydrodynamic pressure arbitrary smooth cross-section analytical solution

收稿日期: 2017-03-16 出版日期: 2018-10-28

引用本文:

王丕光1,2,赵密1，杜修力1. 任意光滑截面桥墩地震动水压力分析[J]. 振动与冲击, 2018, 37(21): 2-13.
WANG Piguang1,2,ZHAO Mi1,DU Xiuli1. Earthquake induced hydrodynamic pressure on a uniform vertical cylinder-with arbitrary smooth cross-section. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(21): 2-13.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2018/V37/I21/2

[1] 项海帆. 21世纪世界桥梁工程的展望[J]. 土木工程学报, 2000, 33(3): 1-6.

Xiang Haifan. Prospect of world’s bridge projects in 21^st century [J]. China Civil Engineering Journal, 2000, 33(3): 1-6. (in Chinese)

[2] Liaw C Y, Chopra A K. Dynamics of towers surrounded by water [J]. Earthquake Engineering and Structural Dynamics, 1974, 3(1): 33~49.

[3] Anthony N W. Earthquake response of submerged circular cylinder [J]. Ocean Engineering, 1986, 13(6): 569-585.

[4] 黄信, 李忠献. 动水压力作用对深水桥墩地震响应的影响[J]. 土木工程学报, 2011, 44(1): 65-73.

Huang Xin, Li Zhongxian. Influence of hydrodynamic pressure on seismic responses of bridge piers in deep water [J]. China Civil Engineering Journal, 2011, 44(1): 65-73. (in Chinese)

[5] 李忠献, 黄信. 行波效应对深水连续刚构桥地震响应的影响[J]. 工程力学, 2013, 30(3): 120-125.

Li Zhongxian, Huang Xin. Influence of traveling wave effect on seismic responses of continuous rigid-framed bridge in deep water [J]. Engineering Mechanics, 2013, 30(3): 120-125. (in Chinese)

[6] 刘振宇, 李乔, 赵灿晖等. 深水连续刚构桥地震响应分析[J]. 地震工程与工程振动, 2009, 29(4): 119-124.

Liu Zhengyu, Li Qiao, Zhao Canhui, et al. Analysis of seismic responses of continuous rigid-frame bridge in deep water [J]. Earthquake Engineering and Engineering Vibration, 2009, 29(4): 119-124. (in Chinese)

[7] Tanaka Y, Hudspeth R T. Restoring forces on vertical circular cylinders forced by earthquakes [J]. Earthquake Engineering and Structural Dynamics, 1988, 16(1): 99-119.

[8] 赖伟, 王君杰, 胡世德. 地震下桥墩动水压力分析[J]. 同济大学学报, 2004, 32(1): 1-5.

Lai Wei, Wang Junjie, Hu Shide. Earthquake induced hydrodynamic pressure on bridge pier [J]. Journal of Tongji University, 2004, 32(1): 1-5. (in Chinese)

[9] Li Q, Yang W L. An improved method of hydrodynamic pressure calculation for circular hollow piers in deep water under earthquake [J]. Ocean Engineering, 2013, 72: 241-256.

[10] 黄信, 李忠献. 自由表面波和水体压缩性对深水桥墩地震动水压力的影响[J]. 天津大学学报, 2011, 44(4): 319-32.

Huang Xin, Li Zhongxian. Influence of free surface wave and water compressibility on earthquake induced hydrodynamic pressure [J]. Journal of Tianjin University 2011, 44(4): 319-323. (in Chinese)

[11] 黄信, 李忠献. 考虑水底柔性反射边界的深水桥墩地震动水压力分析[J]. 工程力学, 2012, 29(7), 102-116.

Huang Xin, Li Zhongxian. Earthquake induced hydrodynamic pressure of bridge pier in deep water with flexible reflecting boundary [J]. Engineering Mechanics, 2012, 29(7), 102-116. (in Chinese)

[12] 杜修力, 赵娟, 赵密. 大直径深水圆柱结构动水压力的时域算法[J]. 土木工程学报, 2012, 45: 316-320.

Du Xiuli, Zhao Juan, Zhao Mi. A time-domain method for the hydrodynamic pressure on deep-water cylindrical structure with large diameter [J]. China Civil Engineering Journal, 2012, 45: 316-320. (in Chinese)

[13] Du X L, Wang P G, Zhao M. Simplified formula of hydrodynamic pressure on circular bridge piers in the time domain [J]. Ocean Engineering, 2014, 85: 44-53.

[14] 刘振宇, 李乔, 赵灿晖等. 深水矩形空心桥墩在地震作用下附加动水压力分析[J]. 振动与冲击, 2008, 27(2): 53-56.

Liu Zhengyu, Li Qiao, Zhao Canhui, et al. Additional hydrodynamic pressure on rectangular hollow piers in deep water due to earthquake [J]. Earthquake Engineering and Engineering Vibration, 2008, 27(2): 53-56. (in Chinese)

[15] Yang W L, Li Q. The expanded Morison equation considering inner and outer water hydrodynamic pressure of hollow piers [J]. Ocean Engineering, 2013, 69: 79-87.