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（1 廣州容柏生建筑結(jié)構(gòu)設(shè)計事務(wù)所， 廣州 510170； 2 同濟(jì)大學(xué)土木工程學(xué)院， 上海 200092）
［摘要］常用設(shè)計軟件沿用框架-剪力墻結(jié)構(gòu)的計算方法計算部分框支剪力墻結(jié)構(gòu)框支框架承擔(dān)的傾覆力矩比例。但直接采用抗規(guī)方法的計算結(jié)果并不符合規(guī)范原意，且結(jié)果通常明顯偏小，對規(guī)范提出的框支框架承擔(dān)的傾覆力矩比例限值起不到控制作用。力學(xué)方法的計算假定與抗規(guī)方法不同，其計算結(jié)果一般偏大，導(dǎo)致結(jié)構(gòu)往往難以滿足抗規(guī)的限值要求。從框支剪力墻結(jié)構(gòu)在水平荷載作用下的力學(xué)簡圖出發(fā)，討論了兩種計算方法的差別，并提出了推薦方法及其在設(shè)計軟件中的實(shí)現(xiàn)方式。通過4個典型算例的計算對比表明，推薦方法更能反映框支框架在結(jié)構(gòu)底部的剛度貢獻(xiàn)，符合抗規(guī)避免部分框支剪力墻結(jié)構(gòu)底部形成少墻框架的意圖。
［關(guān)鍵詞］框架承擔(dān)傾覆力矩； 部分框支剪力墻結(jié)構(gòu)； 抗規(guī)方法； 力學(xué)方法
中圖分類號：TU973文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2017)09-0013-04
Calculation method and application for overturning moment carried by frame part of part frame supported shear wall structure
Liu Fujun1， Huang Zhonghai1， Wu Ming2
(1 RBS Architecture Engineer Design Associate， Guangzhou 510170， China;
2 College of Civil Engineering, Tongji University, Shanghai 200092， China)
Abstract:When calculating overturning moment carried by frame part of part frame supported shear wall structure, the calculation method of frame-shear wall structure is usually adopted by current traditional design software. But the results calculated by seismic code method directly do not meet the code intent and are usually too small, which would not achieve control action of overturning moment ratio carried by frame part. The calculation assumes of mechanics method and seismic code method are different and its calculation results are usually too large, which are difficult to meet the requirement of code limitation. Starting from mechanical calculating diagram of part frame supported shear wall structure under horizontal load, the differences of the two methods were discussed. The recommended method and implementations in design software were proposed. The calculated result analyses of four typical part frame show that the recommended method can better reflect the stiffness contribution of frame part to the bottom of the structure, which conforms the code intention that avoiding bottom part frame supported shear wall structure at least wall frames.
Keywords:overturning moment carried by frame part; part frame supported shear wall structure; mechaniscs method; seismic code method
作者簡介：劉付鈞，博士，教授級高工，一級注冊結(jié)構(gòu)工程師，Email: gzlfj@126.com。
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