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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

26卷

期数:

2009年01期

页码:

55-61

栏目:

出版日期:

2009-03-20

文章信息/Info

Title:

Seismic Response Analysis of Adding Extra-floors Spanning Existing Building with Steel Structure

作者:

宋锋，王元清，石永久

清华大学结构工程与振动教育部重点实验室,北京100084

Author(s):

SONG Feng, WANG Yuan-qing, SHI Yong-jiu

Key Laboratory of Structural Engineering and Vibration of Ministry of Education, Tsinghua University, Beijing 100084, China

关键词:

钢结构跃层加层;  地震反应;  反应谱法;  时程分析法

Keywords:

adding extra-floor spanning existing building with steel structure;  seismic response;  response spectrum method;  time history analysis method

分类号:

TU352.1

DOI:

-

文献标志码:

A

摘要:

根据现行的《建筑抗震设计规范》(GB 50011—2001),结合2个工程实例,通过建立空间三维有限元模型分析了钢结构跃层加层结构的动力特性,并分别用振型分解反应谱法和时程分析法对分离式和整体式外套框架跃层加层结构进行了地震反应分析,比较了2种结构的地震响应和抗震性能。结果表明:整体式跃层加层结构所受地震力较大,层间剪力峰值持续时间较长,衰减较慢。所得结论可为具有类似加层结构的抗震设计提供参考。

Abstract:

According to the actual Code for Seismic Design of Building(GB 50011—2001)and combining with two engineering cases, the dynamic characteristics of adding extra-floors spanning existing building with steel structure were analyzed through making 3-D finite element model, and the seismic responses of the separated and integral coat framing were obtained by using response spectrum method and time history analysis method of vibration mode. The results show that the seismic force of adding extra-floors spanning existing building with steel structure is bigger, and the time of top values of shearing force between layers is longer, and the reducing is slower. The seismic responses and seismic behaviors of two kinds of structures were compared. The conclusion can be served as the references of such structure design.

参考文献/References:

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GB 50011-2001,Code for Seismic Design of Building[S].
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相似文献/References:

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[2]尹飞,谭平,黄东阳,等.内置挡板调谐液体阻尼器对高层结构的地震反应控制研究[J].建筑科学与工程学报,2009,26(01):75.
　YIN Fei,TAN Ping,HUANG Dong-yang,et al.Research on Seismic Responses of High-rise Structures Controlled by Tuned Liquid Damper Embedded Baffles[J].Journal of Architecture and Civil Engineering,2009,26(01):75.
[3]胡大琳,黄小国,赵国辉,等.考虑结构-水相互作用的连续刚构桥水平地震反应分析[J].建筑科学与工程学报,2008,25(02):79.
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[4]楼梦麟,雍国柱,李建元.阻尼特性对组合结构地震反应的影响[J].建筑科学与工程学报,2007,24(02):24.
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备注/Memo

备注/Memo:

收稿日期:2008-10-09
基金项目:国家自然科学基金项目(90815004)
作者简介:宋 锋(1975-),男,甘肃兰州人,工学硕士研究生,E-mail:wang-yq@mail.tsinghua.edu.cn。

常用功能

更新日期/Last Update: 2009-03-20