[1]王 文,尹晓春,杨海波,等.竖向地震作用下桥梁碰撞响应的动态子结构方法[J].南京理工大学学报(自然科学版),2014,38(02):187-191.
 Wang Wen,Yin Xiaochun,Yang Haibo,et al.Dynamic substructure technique for pounding response of bridge under vertical earthquake[J].Journal of Nanjing University of Science and Technology,2014,38(02):187-191.
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竖向地震作用下桥梁碰撞响应的动态子结构方法
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
38卷
期数:
2014年02期
页码:
187-191
栏目:
出版日期:
2014-04-30

文章信息/Info

Title:
Dynamic substructure technique for pounding response of bridge under vertical earthquake
作者:
王 文1尹晓春1杨海波1徐 然2
1.南京理工大学 理学院,江苏 南京 210094; 2.常州大学 机械学院,江苏 常州 213016
Author(s):
Wang Wen1Yin Xiaochun1Yang Haibo1Xu Ran2
1.School of Sciences,NUST,Nanjing 210094,China; 2.Department of Mechanics Engineering,Changzhou University,Changzhou 213016,China
关键词:
动态子结构方法 桥梁 竖向地震 碰撞 响应
Keywords:
dynamic substructure technique bridges vertical earthquakes pounding response
分类号:
U442.5; O313.4
摘要:
该文研究了竖向地震作用下桥梁结构的碰撞响应问题。考虑多次碰撞和多次分离过程以及桥梁支座的影响,针对多跨连续桥梁建立动态子结构模型,导出了模态坐标表示的碰撞动力学方程,并将动态子结构方法应用于竖向地震作用下桥梁结构的碰撞响应问题。采用Newmark隐式积分法对动力学控制方程进行数值求解,研究了竖向地震作用下桥梁与桥墩的碰撞动力学响应。数值收敛性结果和理论解的对比分析表明,该动态子结构方法具有良好的数值收敛性和较高的计算精度,可有效地分析竖向地震作用下桥梁的碰撞响应。
Abstract:
To study the pounding dynamic responses of bridges under vertical earthquakes,a dynamic substructure method is presented here.Considering the multiple impact process and the multiple separation process and the effect of the bridge bearing,the dynamic substructure models of bridges are built and the pounding dynamic governing equations are derived in the modal coordinate system.The Newmark implicit integration method is applied to solve the dynamic governing equations numerically.The pounding dynamic process of the deck against the pier under vertical earthquakes and the pounding force and impulse are simulated.The numerical convergence results and their comparison with the theoretical solution show that the present dynamic substructure method is convergent in numerical calculation and has high numerical precision,and it is suitable for the numerical simulations of pounding responses of bridges under vertical earthquakes.

参考文献/References:

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相似文献/References:

[1]杨海波,尹晓春.考虑碰撞和支座影响的桥梁近场竖向地震响应分析[J].南京理工大学学报(自然科学版),2014,38(05):581.
 Yang Haibo,Yin Xiaochun.Near-fault vertical earthquake response analysis of bridge considering pounding and bearing[J].Journal of Nanjing University of Science and Technology,2014,38(02):581.

备注/Memo

备注/Memo:
收稿日期:2013-11-05 修回日期:2013-12-26
基金项目:国家自然科学基金(11372138); 高等学校博士学科点专项科研基金(20123219110036); 总装预研重点项目
作者简介:王文(1988-),男,博士生,主要研究方向:碰撞动力学计算方法,E-mail:wangwenmountain@163.com; 通讯作者:尹晓春(1963-),男,教授,博士生导师,主要研究方向:碰撞动力学、瞬态波理论等,E-mail:yinxiaochun2000@aliyun.com。
引文格式:王文,尹晓春,杨海波,等.竖向地震作用下桥梁碰撞响应的动态子结构方法[J].南京理工大学学报,2014,38(2):187-191.
投稿网址:http://njlgdxxb.paperonce.org
更新日期/Last Update: 2014-04-30