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(1 深圳大學(xué)土木與交通工程學(xué)院, 深圳 518060;2 深圳市力鵬工程結(jié)構(gòu)技術(shù)有限公司, 深圳 518034)
[摘要]分析了現(xiàn)行計(jì)算部分框支-剪力墻結(jié)構(gòu)框支框架部分承擔(dān)傾覆力矩比不同算法所存在的問題及不足。通過引入傾覆力矩比計(jì)算系數(shù)量化了PKPM,ETABS軟件應(yīng)用抗規(guī)法的計(jì)算結(jié)果。計(jì)算結(jié)果表明,框支層的傾覆力矩比計(jì)算系數(shù)隨結(jié)構(gòu)樓層總數(shù)的增加逐漸減小,隨框支層所在位置的增加逐漸增大,PKPM,ETABS軟件計(jì)算得到的框支框架部分承擔(dān)的傾覆力矩比偏小;通過對YJK軟件提供的計(jì)算結(jié)果反推了其算法的實(shí)質(zhì),指出其將框支層上部樓層的規(guī)定水平力均作用于框支層,將框支層以下樓層視為框架剪力墻結(jié)構(gòu)計(jì)算框支框架部分承擔(dān)的傾覆力矩比;在此基礎(chǔ)上,結(jié)合其他學(xué)者的研究成果,提出了抗規(guī)法框支框架部分部分承擔(dān)的傾覆力矩應(yīng)為框支層框支框架部分及以上隔離體所分配到的層水平外力對框支層框支框架部分的力矩之和;除此以外,還給出了力偶法在部分框支-剪力墻結(jié)構(gòu)的合理應(yīng)用。
[關(guān)鍵詞]框支-剪力墻;傾覆力矩;計(jì)算方法;框支框架;抗規(guī)法;力偶法
中圖分類號:TU375文獻(xiàn)標(biāo)識碼:A文章編號: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
作者簡介:曾慶立,博士研究生,一級注冊結(jié)構(gòu)工程師,Email:cengqingli2019@email.szu.edu.cn;通信作者:杜宏彪,博士,教授,博士生導(dǎo)師,Email:gmms361@163.com。
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