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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］分析了我國JZ 102—79，JGJ 3—91，JGJ 3—2002，JGJ 3—2010等歷次高規(guī)關(guān)于高層建筑結(jié)構(gòu)層間位移角規(guī)定限值的演變過程，對影響樓層結(jié)構(gòu)層間位移角計算結(jié)果的各種因素，如風(fēng)荷載取值、是否考慮結(jié)構(gòu)重力二階效應(yīng)、是否考慮地下室、計算模型中一些假定和結(jié)構(gòu)構(gòu)件剛度折減系數(shù)等進(jìn)行了討論。在分析結(jié)構(gòu)中上部樓層的層間位移角大部分是由結(jié)構(gòu)構(gòu)件底端轉(zhuǎn)動引起的非受力位移組成的基礎(chǔ)上，提出了各類高層建筑風(fēng)荷載作用下最大層間位移角限值取1/500的建議，并提出當(dāng)采用阻尼器等減振措施滿足舒適度要求時或考慮地下室豎向構(gòu)件變形時層間位移角限值可適當(dāng)放松的合理建議,可供規(guī)范修訂和工程設(shè)計參考應(yīng)用。
［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：TU973+.23文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)03-0001-04
Discussion and suggestion on maximum limit value of inter-story displacement angle of RC high-rise building under wind load
Wei Lian， Wang Sen
（Shenzhen Li Peng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China）
Abstract:The evolution process of limit values of inter-story displacement angle in the previous technical specifications for concrete structures of tall building (JZ 102—79, JGJ 3—91, JGJ 3—2002 and JGJ 3—2010). Various factors affecting the calculation results of inter-story displacement angle, such as the wind load value, the P\|Δ effect of structural gravity, influence of the basement, some assumptions in the calculation model and the stiffness reduction coefficient of structural members were discussed. Based on the analysis that most of the inter-story displacement angle is composed of the non-forced inter-story displacement caused by the rotation at the bottom of the vertical structural members, the suggestion was proposed that the maximum limit value of the inter-story displacement angle under the wind load of various high-rise buildings should be taken as 1/500, and the limit value of inter-story displacement angle can be properly relaxed when adopting the damping measures such as dampers to meet the comfort requirements or considering the deformation of the vertical members in the basement. These suggestions can be used for the revision of relevant code and the reference for application of engineering design.
Keywords:high-rise building; inter-story displacement; forced inter-story displacement; non-forced inter-story displacement; limit value of inter-story displacement angle
作者簡介：魏璉,學(xué)士,研究員，Email：WL2002111@163.com。
