消能减震结构阻尼器有效刚度及结构等效阻尼比取值方法研究

引用文献:

周云 韩宇娴 商城豪 陈清祥. 消能减震结构阻尼器有效刚度及结构等效阻尼比取值方法研究[J]. 建筑结构,2022,48(05):43-47,54.

ZHOU Yun HAN Yuxian SHANG Chenghao CHEN Qingxiang. Study on value method of effective stiffness and structural equivalent damping ratio of energy dissipation and shock absorption structure[J]. Building Structure,2022,48(05):43-47,54.

作者:周云 韩宇娴 商城豪 陈清祥
单位:广州大学土木工程学院 上海优耐建筑工程咨询有限公司
摘要:给出了消能减震结构时程分析中阻尼器有效刚度及结构等效阻尼比的计算步骤,研究了消能减震结构阻尼器有效刚度、结构等效阻尼比如何取值并给出取值建议,讨论了消能减震结构考虑双向地震作用时地震工况主次方向的确定方法。以某框架结构为例,对比消能减震结构时程分析与等效结构反应谱分析。结果表明,本文所提出的取值方法合理,双向地震工况主次方向确定方法可行;按本文取值方法确定的等效结构受力情况符合消能减震结构实际受力情况,等效结构的反应谱分析结果能够包络时程分析结果,采用该等效结构进行结构设计是安全可靠的。
关键词:消能减震结构,等效阻尼比,有效刚度,时程分析,反应谱分析
作者简介:周云,博士,教授,博士生导师,主要从事消能减震技术研究,Email:zhydxs@163.com。
基金:国家重点研发计划资助(2017YFC0703600)。
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参考文献[1] 周云,邓雪松,汤统壁,等.中国(大陆)耗能减震技术理论研究、应用的回顾与前瞻[J].工程抗震与加固改造,2006,28(6):1-15.
[2] 周云,商城豪,张超.消能减震技术研究与应用进展[J].建筑结构,2019,49(19):33-48.
[3] 商城豪,周云,陈清祥,等.黏滞阻尼器有效刚度对结构的影响及其取值方法研究[J].建筑结构学报,2021,42(S1):132-138.
[4] 韩宇娴,商城豪,陈清祥,等.基于楼层剪力的等效阻尼比计算方法研究[J].地震工程与工程振动,2021,41(1):161-167.
[5] 张誉,王卫.双向地震作用下不规则框架的扭转分析[J].土木工程学报,1994,27(5):37-51.
[6] 管民生,王险峰,杜宏彪,等.框架-剪力墙结构单双向地震输入下的反应分析[J].广东工业大学学报,2010,27(2):17-20.
[7] 建筑抗震设计规范:GB 50011—2010[S].北京:中国建筑工业出版社,2010.
[8] 建筑消能减震技术规程:JGJ 297—2013[S].北京:中国建筑工业出版社,2013.
Study on value method of effective stiffness and structural equivalent damping ratio of energy dissipation and shock absorption structure
ZHOU Yun HAN Yuxian SHANG Chenghao CHEN Qingxiang
(School of Civil Engineering, Guangzhou University Shanghai Younai Construction Engineering Consulting Co., Ltd.)
Abstract: The calculation steps of damper effective stiffness and structural equivalent damping ratio in time history analysis of energy dissipation and shock absorption structure were presented. The value of damper effective stiffness and structural equivalent damping ratio of energy dissipation and shock absorption structure were studied, and suggestions of value were given. The method to determine the main and secondary directions of seismic working conditions for energy dissipation and shock absorption structures considering the two-way seismic action was discussed. Taking a frame structure as an example, time-history analysis of energy dissipation and shock absorption structure and response spectrum analysis of equivalent structure were compared. The results show that the proposed value method is reasonable and the method to determine the main and secondary directions of two-way seismic action is feasible. The stress condition of the equivalent structure determined by this value method is in accordance with the actual stress condition of energy dissipation and shock absorption structure, and the response spectrum analysis results of the equivalent structure can enclose the time-history analysis results, so it is safe and reliable to use the equivalent structure for structural design.
Keywords: energy dissipation and shock absorption structure; equivalent damping ratio; effective stiffness; time history analysis; response spectrum analysis
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