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(深圳市力鵬工程結(jié)構(gòu)技術(shù)有限公司, 深圳 518034)
[摘要]分析了層間位移角的內(nèi)涵和組成,給出了彈性樓板假定下結(jié)構(gòu)層間位移、受力層間位移的計(jì)算公式,并在此基礎(chǔ)上對剛性板、斜柱、嵌固端等各種情況下層間位移、受力層間位移的關(guān)系進(jìn)行了討論。結(jié)合兩個(gè)工程案例,分析了豎向構(gòu)件層間位移和受力層間位移沿高度的變化規(guī)律。結(jié)果表明,層間位移較大樓層的受力層間位移很小,由此可見,規(guī)范規(guī)定高層建筑最大層間位移角限值主要目的實(shí)際上不是控制結(jié)構(gòu)受力的安全性。研究結(jié)果可為高層建筑層間位移角限值的合理取值提供理論依據(jù)和說明,可供規(guī)范修訂和設(shè)計(jì)參考。
[關(guān)鍵詞]高層建筑; 層間位移; 受力層間位移; 非受力層間位移; 層間位移角限值
中圖分類號:TU972+.9, TU318文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2019)09-0001-06
Calculation on forced and non-forced inter-story displacement of high-rise building under horizontal load
Wei Lian, Wang Sen
(Shenzhen Li Peng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China)
Abstract:The connotation and composition of the inter-story displacement angle were analyzed. The formulas for calculating the inter-story displacement and the forced inter-story displacement under the assumption of elastic floor were given. On this basis, the relationship between the inter-story displacement and the forced inter-story displacement under the assumption of rigid plate, inclined column and embedded end was discussed. Based on two engineering cases, the variation law of vertical component inter-story displacement and forced inter-story displacement along the height was analyzed. The results show that the forced inter-story displacement is small for story with large inter-story displacement. It can be seen that the main purpose of stipulating the maximum inter-story displacement angle limit value of high-rise buildings in the code is not to control the safety of structural forces. Research result provides a theoretical basis and explanation for the reasonable value of inter-story displacement angle limit value of high-rise buildings, and can be used as a reference for the revision and design of the code.
Keywords:high-rise building; inter-story displacement; forced inter-story displacement; non-forced inter-story displacement; inter-story displacement angle limit value
作者簡介:魏璉, 學(xué)士, 研究員,Email:WL2002111@163.com。
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