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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (11): 1953-1959    DOI: 10.3785/j.issn.1008-973X.2011.11.011
土木工程     
含单伸臂的框架-核心筒结构简化模型
邓仲良2,3,孙飞飞1,2,李国强1,2,胜利2
1. 同济大学 土木工程防灾国家重点实验室, 上海 200092；
2. 同济大学 土木工程学院建筑工程系,上海 200092； 3. 中国建筑设计研究院,北京 100044
A simplified model for frame-core structures with single outrigger
DENG Zhong-liang2,3, SUN Fei-fei1,2, LI Guo-qiang1,2 , SHENG-li2
1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;
2. Building Department, College of Civil Engineering, Tongji University, Shanghai 200092, China;
3. China Architectural Design and Research Group, Beijing 100044, China
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摘要：

对含单伸臂的框架-核心筒结构，将外柱和伸臂参与抵抗倾覆力矩的能力简化为抗弯弹簧，建立平面简化模型研究静力性能，分析伸臂设置对结构整体稳定性的影响.基于Rayleigh能量法提出求解单伸臂的框架-核心筒结构基本频率的近似理论解.针对某工程实例，对比分析理论简化模型和二维有限元模型的分析精度.结果表明，采用这种含弹簧的芯筒-刚臂结构简化模型既能准确分析该类结构的静力反应，又可以有效地估计其基本频率，计算精度满足工程结构设计的需要.
Abstract:

Regarding frame-core structures with single outrigger (SO-COS), a planar simplified model was established by introducing a bending spring to consider the contribution of exterior columns and outrigger to resisting overturning moment. With this model, the static behavior and global structural stability of SO-COS were analyzed, and an approximate theoretical solution to the fundamental frequency of SO-COS was obtained by means of Rayleigh energy method. Finally, the simplified model was compared with a 2D planer finite element model in terms of static response and dynamic property of an actual engineering project, showing that the static behavior and fundamental frequency of SO-COS can be effectively predicted by the simplified model with an accuracy satisfying the need of structural design.
出版日期: 2011-12-08
:  TU 32.01  
基金资助:

同济大学土木工程防灾国家重点实验室自主研究课题(SLDRCE09-B-07)；上海市自然科学基金资助项目(08ZR1420000).
通讯作者: 孙飞飞，男，副教授.     E-mail: ffsun@tongji.edu.cn
作者简介: 邓仲良（1984-），男，硕士生，从事多高层钢结构抗震、减震研究. E-mail: dzl133@163.com
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引用本文:

邓仲良,孙飞飞,李国强,胜利. 含单伸臂的框架-核心筒结构简化模型[J]. J4, 2011, 45(11): 1953-1959.

DENG Zhong-liang, SUN Fei-fei, LI Guo-qiang , SHENG-li. A simplified model for frame-core structures with single outrigger. J4, 2011, 45(11): 1953-1959.

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https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.11.011    或    https://www.zjujournals.com/eng/CN/Y2011/V45/I11/1953

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