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部分框支-剪力墙结构框支框架部分承担倾覆力矩的计算方法研究
曾庆立1,2,魏琏2,王森2,杜宏彪1
摘 要

(1 深圳大学土木与交通工程学院, 深圳 518060;2 深圳市力鹏工程结构技术有限公司, 深圳 518034)

[摘要]分析了现行计算部分框支-剪力墙结构框支框架部分承担倾覆力矩比不同算法所存在的问题及不足。通过引入倾覆力矩比计算系数量化了PKPM,ETABS软件应用抗规法的计算结果。计算结果表明,框支层的倾覆力矩比计算系数随结构楼层总数的增加逐渐减小,随框支层所在位置的增加逐渐增大,PKPM,ETABS软件计算得到的框支框架部分承担的倾覆力矩比偏小;通过对YJK软件提供的计算结果反推了其算法的实质,指出其将框支层上部楼层的规定水平力均作用于框支层,将框支层以下楼层视为框架剪力墙结构计算框支框架部分承担的倾覆力矩比;在此基础上,结合其他学者的研究成果,提出了抗规法框支框架部分部分承担的倾覆力矩应为框支层框支框架部分及以上隔离体所分配到的层水平外力对框支层框支框架部分的力矩之和;除此以外,还给出了力偶法在部分框支-剪力墙结构的合理应用。

[关键词]框支-剪力墙;倾覆力矩;计算方法;框支框架;抗规法;力偶法

中图分类号:TU375文献标识码:A文章编号:1002-848X(2021)10-0007-05

 

Study on calculation method for overturning moment carried by the frame-supported frame part of the partially frame-supported shear wall structure

ZENG Qingli1,2, WEI Lian2, WANG Sen2, DU Hongbiao1

(1 College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China;2 Shenzhen Li Peng Structural Engineering Technology Co.,Ltd., Shenzhen 518034, China)

Abstract:The problems and shortcomings of different algorithms for calculating the overturning moment ratios carried by the frame-supported frame part of the partially frame-supported shear wall structure were analyzed. The calculation results of PKPM and ETABS software according to the method of seismic design code were quantified by introducing the calculation coefficient of overturning moment ratio. The calculation results show that the calculation coefficient of overturning moment ratio of the frame-supported layer gradually decreases with the increase of the total number of layers of the structure and gradually increases with the increase of the positions of the frame-supported layer, and the overturning moment ratio of the frame-supported frame part calculated by the PKPM and ETABS software is smaller. Through the calculation results provided by the YJK software, the essential of the algorithm is deduced and it is pointed out that the overturning moment ratio of the frame-supported frame part is calculated by enforcing the required horizontal forces to upper floors of the frame-supported layer and the floors below the frame-supported layer as the frame-shear wall structure. On this basis, combined with the research results of other scholars, it is proposed that the overturning moment borne by the frame-supported frame part of the method of seismic design code should be the sum of the moments of the frame-supported frame part of the frame-supported layer distributed by the frame-supported frame and the above isolators to the frame-supported layer. In addition, the reasonable application of the couple method in partially frame-supported shear wall structure is also given.

Keywords:frame-supported shear wall;overturning moment;calculation method;frame-supported frame;method of seismic design code;couple method

 

作者简介:曾庆立,博士研究生,一级注册结构工程师,Email:cengqingli2019@email.szu.edu.cn;通信作者:杜宏彪,博士,教授,博士生导师,Email:gmms361@163.com。

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