J4  2012, Vol. 46 Issue (11): 1998-2006    DOI: 10.3785/j.issn.1008-973X.2012.11.010
 土木工程

1.浙江大学 水工结构与水环境研究所,浙江 杭州 310058；2.英国帝国理工学院 土木与环境工程系,伦敦 SW7 2AZ
Study on the component-based model of semi-rigid
beam-to-column joints initial stiffness
WANG Zhen-yu1, ZHANG Jin-fan1, FANG Cheng2, LIU Guo-hua1,JIANG Jian-qun1
1.Institute of Hydraulic Structure and Water Environment, Zhejiang University, Hangzhou 310058 China;
2. Department of Civil and Environmental Engineering, Imperial College of Science, Technology and
Medicine, London SW7 2AZ UK
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Abstract:

In order to simulate the mechanical properties of semi-rigid beam-to-column joints conveniently and precisely, an initial stiffness calculation method was proposed in this paper based on the component method of EuroCode3. A T-stub model was set up and systematically verified. And the semi-rigid beam-to-column joint could be simplified with a set of T-stubs. Through that simplification, the semi-rigid beam-to-column joint was simulated with a series of equivalent springs and bars. Compared with the Eurocode3, the present method in this paper is based on a set of T-stubs and using a single spring instead of several springs to simulate the each corresponding T-stub. It is demonstrated by the T-stub example that the calculated load-displacement curve fits well with the numerical result and the experimental result. Furthermore, the semi-rigid beam-to-column joint responses calculated by the proposed method show a good accordance with the experimental initial stiffness and moment-rotation relation, which verify the correctness of the present method．

 : TU 391

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