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(清華大學(xué)建筑設(shè)計(jì)研究院有限公司,北京 100084)
摘要: 不對稱連體結(jié)構(gòu)兩側(cè)塔樓質(zhì)量、構(gòu)件布置均不同,為使兩個(gè)分塔動力特性接近、整體結(jié)構(gòu)變形協(xié)調(diào),調(diào)整主要抗側(cè)力構(gòu)件剪力墻的布置是最有效的方式.詳細(xì)介紹了某不對稱連體結(jié)構(gòu)剪力墻布置的調(diào)整思路,在結(jié)構(gòu)最大層間位移角滿足要求的前提下,減少核心筒內(nèi)部剪力墻,可有效增加結(jié)構(gòu)扭轉(zhuǎn)剛度,同時(shí)減小結(jié)構(gòu)在地震作用下的響應(yīng).7 層高位連體選用底層桁架支撐方案,對比了桁架層兩種不同腹桿布置方式,經(jīng)驗(yàn)算,對稱 N 字形布置方案可保證連體下一層受剪承載力不小于連體桁架層受剪承載力的 65%.
關(guān)鍵詞: 不對稱連體結(jié)構(gòu);剪力墻布置;扭轉(zhuǎn)剛度;動力特性;腹桿布置
中圖分類號:TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2022)18-0060-05
DOI:10.19701 / j.jzjg.THAD1810
Design of an asymmetrical concatenated structure
YANG Xiao,JIANG Bingli,CUI Juan,ZHU Duoe,WANG Li
(Architectural Design and Research Institute of Tsinghua University Co. ,Ltd. ,Beijing 100084,China)
Abstract: The quality of the towers and the layout of the components on both sides of the asymmetrical connected structureare different. In order to make the dynamic characteristics of the two sub-towers close and the deformation of the wholestructure is coordination,it is the most effective way to adjust the layout of the shear wall of the main lateral resistancecomponent. The adjustment idea of shear wall arrangement of an asymmetrical concatenated structure was introduced indetail. On the premise that the maxmum inter-story displacement angle of the structure meets the requirements,reducingthe internal shear wall of the core can effectively increase the torsional stiffness of the structure while reducing the responseof the structure in earthquake action. The 7-story high level connection selects the bottom truss support scheme,and twodifferent web arrangement methods of truss layer were compared. As a result,the symmetrical N-shaped arrangement canensure that the shear bearing capacity of the next layer of the conjoined body is not less than 65% of the shear bearingcapacity of the conjoined truss layer.
Keywords:asymmetrical concatenated structure;shear wall arrangement;torsional stiffness;dynamic characteristics;web arrangement
第一作者:楊霄,碩士,高級工程師,主要從事復(fù)雜結(jié)構(gòu)設(shè)計(jì)工作,Email:yangxiao@ thad. com. cn.
[引用本文] 楊霄,蔣炳麗,崔娟,等. 某不對稱連體結(jié)構(gòu)設(shè)計(jì)[ J]. 建筑結(jié)構(gòu),2022,52( 18):60-64,32. YANGXiao,JIANG Bingli,CUI Juan,et al. Design of an asymmetrical concatenated structure[ J]. Building Structure,2022,52(18):60-64,32.
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