[1]涂永明,张继文,吕志涛,等.悬挂建筑减振体系次结构的抗侧性能[J].东南大学学报(自然科学版),2008,38(6):1099-1104.[doi:10.3969/j.issn.1001-0505.2008.06.031]
 Tu Yongming,Zhang Jiwen,Lü Zhitao,et al.Lateral performance of substructure of suspended vibration absorption system[J].Journal of Southeast University (Natural Science Edition),2008,38(6):1099-1104.[doi:10.3969/j.issn.1001-0505.2008.06.031]
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悬挂建筑减振体系次结构的抗侧性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
38
期数:
2008年第6期
页码:
1099-1104
栏目:
土木工程
出版日期:
2008-11-20

文章信息/Info

Title:
Lateral performance of substructure of suspended vibration absorption system
作者:
涂永明1 张继文1 吕志涛1 陈杰2 钱洋3
1 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京 210096; 2 南京市民用建筑设计研究院有限公司, 南京 210002; 3 东南大学建筑设计研究院, 南京 210096
Author(s):
Tu Yongming1 Zhang Jiwen1 Lü Zhitao1 Chen Jie2 Qian Yang3
1 Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education,Southeast University,Nanjing 210096,China
2 Nanjing Municipal Institute of Civil Architecture Co. Ltd, Nanjing 210002,China
3 Architectural Design and Research Institute,Southeast University,Nanjing 210096,China
关键词:
悬挂建筑减振体系 次结构 抗侧刚度 摆动位移 等效悬挂长度
Keywords:
suspended vibration absorption system substructure lateral stiffness swinging displacement equivalent suspended length
分类号:
TU973.2
DOI:
10.3969/j.issn.1001-0505.2008.06.031
摘要:
对悬挂建筑减振体系次结构的抗侧性能进行了静力和动力分析,结果表明:随着悬挂次结构转动刚度的增加,其弹性抗侧刚度将不断增加并趋于一个稳定值,因此只需在构造上使得次结构的抗转动刚度与侧移刚度之比的表征系数γ>10,则可得到次结构固结于悬挂端的效果; 随着悬挂次结构质量的增加,次结构的抗侧刚度增加,因此次结构中的悬挂楼层数不应过少,以5~10层为宜; 为使主、次结构的动力响应都达到优化要求,应合理选择地震波在结构中的衰减系数ζ,一般可以取0.5~1.0; 悬挂建筑结构在地震动激励下不易发生共振; 次结构摆动位移响应对等效悬挂长度的变化不敏感,但对激振频率的变化很敏感.
Abstract:
The lateral performance of substructure of suspended vibration absorption system is analyzed in this paper.The results show that the elastic lateral stiffness of the suspended substructure will increase and approach an upper limit value when its rotational stiffness increases.Therefore,the suspended substructure can be considered being connected to the suspended transfer structure rigidly as long as the nominal coefficient γ is above 10.The lateral stiffness of suspended substructure increases with the increasing of its mass.Therefore,the storey number of the substructure should not be too small, and usually 5-10 being the best.If the attenuation coefficient ζ of the seismic wave in the major structure is appropriate,generally 0.5-1.0 is preferred,the dynamic responses of both the major structure and substructure will reach the optimum.The suspended vibration absorption system under seismic excitation is of less possibility to resonate.The dynamic response of substructure is insensitive to the equivalent suspended length,but sensitive to the stimulation frequency.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 涂永明(1978—),男,博士,讲师,tuyongming@seu.edu.cn.
基金项目: 国家自然科学基金重点资助项目(50238030)、国家自然科学基金资助项目(50178018,50808039)、教育部博士点基金新教师资助项目(20070286095)、江苏省自然科学基金资助项目(BK2008148).
引文格式: 涂永明,张继文,吕志涛,等.悬挂建筑减振体系次结构的抗侧性能[J].东南大学学报:自然科学版,2008,38
更新日期/Last Update: 2008-11-20