[1]朱丽华,李窍,张现宾,等.地震作用下结构-设备耦合体系动力相互作用研究[J].世界地震工程,2017,33(02):064-70.
 ZHU Lihua,LI Qiao,ZHANG Xianbin,et al.Study on dynamic interaction of structure-equipment coupled system under earthquake action[J].,2017,33(02):064-70.
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地震作用下结构-设备耦合体系动力相互作用研究
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《世界地震工程》[ISSN:/CN:]

卷:
33
期数:
2017年02期
页码:
064-70
栏目:
出版日期:
2017-07-14

文章信息/Info

Title:
Study on dynamic interaction of structure-equipment coupled system under earthquake action
作者:
朱丽华 李窍 张现宾 马颖飞
西安建筑科技大学 土木工程学院, 陕西 西安 710055
Author(s):
ZHU Lihua LI Qiao ZHANG Xianbin MA Yingfei
School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China
关键词:
结构-设备耦合体系振动台试验地震响应参数分析
Keywords:
structure-equipment coupled systemshaking table testseismic responseparametric analysis
分类号:
TU317+.1
摘要:
为了研究结构系统与设备系统的动力相互作用,设计并制作了1个由钢筋混凝土框架结构和钢结构单自由度振子组成的结构-设备耦合体系模型,并进行了振动台试验。试验测试了模型结构在不同地震波峰值加速度下的动力特性、位移反应和动应变。根据试验结果,分析了耦合系统的受力过程和破坏机理。采用ABAQUS进行有限元分析,分析了设备与结构不同质量比参数情况下,耦合模型和堆聚质量模型频率特性以及地震响应的差异。研究表明:在地震作用下会形成非线性结构-弹性设备的耦合体系:结构屈服后设备的动力放大系数小于屈服前的放大系数:耦合体系的计算频率小于堆聚质量体系的计算结果,地震响应大于集中堆聚体系,质量比越大,两者的差异也越大。
Abstract:
In order to investigate the dynamic interaction between the structure system and the equipment system, a structure-equipment coupled system model consisting of a reinforced concrete frame and a steel oscillator of single degree of freedom was designed and constructed, and then a shaking table test was conducted. The dynamic characteristic parameters, displacement responses and dynamic strains of the model structure at different peak value levels of acceleration of seismic wave were tested in the experiment. The load-bearing process and failure mechanism were analyzed based on the experimental results. The frequency characteristics and differences of seismic response between the coupled system and the lumped mass system for different mass ratio of equipment system to structure system were calculated and analyzed by ABAQUS. The study shows that nonlinear structure and elastic equipment coupled system would be formed under strong earthquake.The dynamic amplification factor of equipment after the yielding of structure is less than the one before the yielding of structure. The calculated frequency of the coupled system is less than that of lumped mass system, while its seismic response is larger than that of lumped mass system, and the difference becomes larger with the increase in mass ratio.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-01-28;改回日期:2015-04-26。
基金项目:陕西省留学人员科技活动择优资助项目;陕西省科技新星项目(2013KJXX-53)
作者简介:朱丽华(1979-),男,博士,教授,主要从事工程结构抗震与振动控制研究.E-mail:zhulihuaxa@163.com
更新日期/Last Update: 2017-07-08