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短肢剪力墙实用判别的探讨
张敏,胡淑兰,杨正华
摘 要

(华东交通大学土木建筑学院,南昌 330013)
[摘要]讨论了短肢剪力墙的实用判别依据。首先根据联肢剪力墙的力学特征,导出了多肢剪力墙力学性能参数T,Ψ的实用计算公式,由此分析了参数T的物理意义;然后对墙肢长厚比在5~8之间,且整体参数α<10的剪力墙,进行了力学性能分析,表明参数T增大会减小墙肢弯矩、轴力与侧移,但对墙肢剪力无影响;另外,参数T对墙肢剪跨比影响不大。由此建议短肢剪力墙的墙肢长厚比在5~8之间,且整体参数α<10,但参数T不需限制;最后给出了短肢剪力墙中连梁截面高度与其净跨度比值的限制条件。
[关键词]短肢剪力墙;连梁;高跨比;整体参数;实用判别
Discussion on practical judgment of short-pier shear wall
Zhang Min, Hu Shulan, Yang Zhenghua(College of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China)
Abstract:The basis for practical judgment of short-pier shear wall has been discussed. Firstly, the practical calculating formulas of the mechanics parameter T and Ψ have been derived from the mechanics property of coupled shear wall, from which the physics meanings of parameter T have been researched, then the mechanics properties have been analyzed which the ratio of the length of wall pier to the wall thickness may be between 5 and 8, and the monolithic parameter α may be less than 10. The results indicate that the meaning of the parameter T may reduce the moment, the axial force of the wall pier and the lateral displacement of the wall, but the parameter T has no influence on the shearing force of the wall, and hardly exert an influence on the shear span ratio of the wall pier. From this, it may be proposed that the ratio of length of the wall pier to the wall thickness may be between 5 and 8, and the monolithic parameter α may be less than 10, but the parameter T should not be limited. Finally, the limited requirement of the ratio of the height of connecting beam to its net span in the short-pier shear wall has been given.
Keywords:short-pier shear wall; connecting beam; ratio of height to span; monolithic parameter; practical judgment
作者简介:张敏,博士,副教授,Email:zhmzm@126.com。
参考文献
[1]黄东升,程文瀼,彭飞.短肢剪力墙设计与研究(二)[J].建筑结构,2002,32(8):56-58.
[2]黄东升,程文瀼,彭飞.短肢剪力墙设计与研究(三)[J].建筑结构,2003,33(9):24-25.
[3]包世华.新编高层建筑结构(第二版)[M].北京:中国水利水电出版社,2005.

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