水平荷載作用下框架-支撐結(jié)構(gòu)層間位移簡化算法*
胡寶琳1，李國強(qiáng)2
- 摘 要
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(1 上海大學(xué)土木系，上海市應(yīng)用數(shù)學(xué)與力學(xué)研究所，上海 200072；2 同濟(jì)大學(xué)土木工程學(xué)院，同濟(jì)大學(xué)土木工程防災(zāi)國家重點實驗室，上海 200092)［摘要］根據(jù)框架-支撐結(jié)構(gòu)的受力特點，將其分解成純框架體系和純支撐體系，這兩部分相互協(xié)同工作。分別從純框架體系和純支撐體系的層間位移求解方法入手，通過這兩部分的變形協(xié)調(diào)推導(dǎo)得到框架-支撐結(jié)構(gòu)體系在水平荷載作用下的層間位移計算公式。并將此簡化求解方法的計算結(jié)果與有限元法的計算結(jié)果進(jìn)行了對比，結(jié)果表明，所用簡化算法準(zhǔn)確有效，計算步驟清晰明了。［關(guān)鍵詞］框架-支撐結(jié)構(gòu)；層間位移；簡化算法中圖分類號：TU391文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)08-0072-03Simplified calculation method of interstorey displacement of braced frame structures under horizontal loadsHu Baolin1, Li Guoqiang2(1 Department of Civil Engineering, Shanghai University & Shanghai Institute of Applied Mathematics and Mechanics, Shanghai 200072, China; 2 School of Civil Engineering & State Key Lab for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)Abstract:Based on the loading characteristic of braced frame structures, the braced frame structures can be divided into pure frame and pure support system, and the two parts can work collaboratively.The interstorey displacement formula of braced frame structures under horizontal load can be derived by deformation coordination, starting with solution of interstorey displacement with the pure frame system and support system. The comparing analysis of two calculation results between simplified calculation method and finite element method has been carried out. The result shows that the simplified calculation method is exact and valid, and the calculation step is much clear.Keywords:braced frame structure; interstorey displacement; simplified calculation method* 上海市博士后資助項目(10R21413000)。作者簡介：胡寶琳，博士，Email:hubaolintz@163.com。參考文獻(xiàn)［1］李國強(qiáng)，沈祖炎. 鋼結(jié)構(gòu)框架體系彈性及彈塑性分析與計算理論［M］. 上海：上海科學(xué)技術(shù)出版社，1998.［2］方鄂華. 多層及高層建筑結(jié)構(gòu)設(shè)計［M］. 北京：地震出版社，1999.［3］包世華，方鄂華. 高層建筑結(jié)構(gòu)設(shè)計［M］. 北京：清華大學(xué)出版社，1996.［4］李國強(qiáng).多高層建筑鋼結(jié)構(gòu)設(shè)計［M］. 北京：中國建筑工業(yè)出版社，2004.
