[1]尹俊红,李青宁,张瑞杰,等.基于精细时程积分法的结构碰撞问题研究[J].世界地震工程,2015,(01):097-104.
 YIN Junhong,LI Qingning,ZHANG Ruijie,et al.Study on structure pounding based on precise time-integration method[J].,2015,(01):097-104.
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基于精细时程积分法的结构碰撞问题研究
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2015年01期
页码:
097-104
栏目:
出版日期:
2015-03-31

文章信息/Info

Title:
Study on structure pounding based on precise time-integration method
作者:
尹俊红 李青宁 张瑞杰 闫磊 程麦理 孙建鹏 韩春
西安建筑科技大学 土木工程学院, 陕西 西安 710055
Author(s):
YIN Junhong LI Qingning ZHANG Ruijie YAN Lei CHENG Maili SUN Jianpeng HAN Chun
Xi’an University of Architecture and Technology, College of Civil Engineering, Shanxi, Xi’an 710055
关键词:
结构碰撞精细时程积分法振动台试验反应谱碰撞力峰值
Keywords:
structure poundingprecise time-integration methodshaking table testresponse spectrumpeak pounding force
分类号:
U442.55
摘要:
结构碰撞问题是影响其抗震性能的一个重要因素.利用精细积分法无条件稳定、精度高和受时间步长限制小的特点,将其用于结构碰撞问题的求解,并进行了公式推导;基于精细积分算法对相邻结构体系进行了碰撞力反应谱研究,考虑了碰撞刚度、初始间隙、阻尼比等参数变化对碰撞力的影响.结果表明,精细积分法用于结构的碰撞分析,计算精度和效率较高,对求解结构碰撞问题是适用的;对碰撞力反应谱分析表明,碰撞力峰值随碰撞刚度值的增大而增大,若使相邻结构的振动特性一致或具有足够大的相邻间隙,可最大限度地减小结构碰撞响应;短周期结构不易发生碰撞.
Abstract:
Pounding is one of important factor affecting seismic performance of structure. In this paper, precise time-integration method which is unconditionally stable, high precision and less time step restruction was put in action to solve the pounding problem, then corresponding formula were derived. Pounding force response spectrum of adjacent structure systems was studied with precise time-integration method, and the influence of parameters, such as impact stiffness, the initial gap and damping ratio on the pounding force was considered. The results show that the precise integration method for structural analysis of the pounding is high accuracy and efficiency, and is suitable for the structural pounding problem. The pounding force response spectrum analysis shows that, peak pounding force increases with increase of pounding stiffness value. If the vibration characteristics of the adjacent structures are consistent or adjacent gap is large enough, the pounding response of the structures would reduced significantly; pounding is not easy to happen for structure with lower period.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-5-22;改回日期:2014-12-13。
基金项目:国家自然科学基金资助项目(51078306,51408453);高等学校博士学科点专项科研基金资助项目(20106120110004,20136120120022)
作者简介:尹俊红(1986-),女,博士研究生,主要从事桥梁结构抗震研究.E-mail:yinjunhong2000@163.com
通讯作者:李青宁,男,教授,主要从事结构抗震研究.E-mail:lqn952@163.com
更新日期/Last Update: 1900-01-01