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《Journal of Beijing University of Technology》 2011-07
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Damage Mechanism Research on Reinforced Concrete Spatial Joints Subjected to 45-degree Direction Cyclic Loading

LI Zhen-bao,LIU Chun-yang,MA Hua(Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit Beijing University of Technology,Beijing 100124,China)  
The prefered strong-column weak-beam mechanism had not been realized in Wen-Chun earthquake and many buildings have been damaged for the reason of it.In this paper the damage mechanism of the spatial joint under the 45-degree direction earthquake affection was discussed through the mechanical analysis,cyclic loading experiment and the finite element analysis.The aseismic design method prefered in the code have not considered the 45-degree direction earthquake affection and it is considered as one of the main reason that the strong-column weak-beam mechanism had not been realized in earthquake,the necessity of the 45-degree direction aseismic designing is also suggested.
【Fund】: 国家自然科学基金资助项目(51078011 50778008);; 北京市自然科学基金B类资助项目;; 北京市教委科技计划重点资助项目(KZ201110005009)
【CateGory Index】: TU375
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