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（深圳千典建筑與工程設(shè)計(jì)顧問有限公司, 深圳 518042）
［摘要］加腋大板作為一種經(jīng)濟(jì)合理的結(jié)構(gòu)形式，正在逐步推廣，但相關(guān)設(shè)計(jì)方法并不完善。采用ABAQUS程序進(jìn)行三維實(shí)體有限元分析，得出了跨度、加腋寬度、荷載、板厚等因素影響下構(gòu)件的彎矩分布規(guī)律。結(jié)果表明，加腋大板在豎向荷載作用下產(chǎn)生了較大的軸力，使得彎矩顯著降低，宜采用更合理的辦法來估算構(gòu)件的彎矩進(jìn)行設(shè)計(jì)。結(jié)合有限元計(jì)算結(jié)果，擬合得到了加腋大板跨中和支座彎矩的計(jì)算公式，具有較高的計(jì)算精度。
［關(guān)鍵詞］加腋大板； 有限元分析； 擬合公式
中圖分類號：TU318文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)15-0005-06
Study on design method for large haunched slabs
Liu Weiya， He Yuanming， Deng Yi， Li Shaofeng
（Classical Architectural & Engineering Designing Consultant Ltd., Shenzhen 518042, China）
Abstract:Large haunched slab is a kind of economic and reasonable structural form to be gradually promoted, but related design method is not perfect. Three-dimensional solid finite element analysis using ABAQUS program was carried out to obtain the bending moment distribution laws of the component influenced by factors of span, haunched width, load and thickness. Results show that the large haunched slab produces large axial force under the vertical load, which reduces bending moment significantly, so a more reasonable way should be adopted to estimate the bending moment of the component. Combined with the finite element calculation results, calculation formulas of bending moments at middle-span and bearing were fitted with high calculation accuracy.
Keywords:large haunched slab; finite element analysis; fitting formula
作者簡介：劉維亞, 教授級高級工程師, Email:sdbywyl@126.com。
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