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(湖南大學(xué)土木工程學(xué)院 長沙 410082)
【提要】 考慮剪力滯后的影響，將高層框筒結(jié)構(gòu)先離散成正交各向同性板，根據(jù)最小勢能原理得到各板的應(yīng)力和應(yīng)變表達式，再根據(jù)角柱處的位移與內(nèi)力相等效的原則，將空間框筒結(jié)構(gòu)等效成平面框架結(jié)構(gòu)。對一個高層算例進行了計算，并與按空間框架分析的結(jié)果進行了對比。結(jié)果表明，這種簡化方法具有足夠的精度。
【關(guān)鍵詞】 高層框筒 剪力滯后 等代角柱
Simplified Method for Calculating Frametube Structure/Gong Huguang,Fang Hui,Shen Pusheng(College of Civil Engineering,Hunan University,Changsha 410082,China)
Abstract:A simple method of analysis for calculating frame tube structures is proposed.With the shear lag effects taken into account,equivalent columns are used to simplify the frametube to plane frame.This method is suitable for quick evaluation during the preliminary design stage.Numerical example is given to demonstrate the application and accuracy of the method.
Keywords:frametube structure;shear lag;equivalent column analogy