- 摘 要
-
（1 中建科技有限公司深圳分公司， 深圳 518000； 2 筑博設(shè)計股份有限公司, 深圳 518000）
［摘要］以某斜柱框架-核心筒為研究對象，基于合理的混凝土塑性損傷本構(gòu)模型和分層殼單元，采用有限元軟件ABAQUS對結(jié)構(gòu)樓板的受力情況進行分析。分析中考慮了恒荷載、活荷載及豎向構(gòu)件差異變形和外框斜柱等因素對樓板受力的影響，并基于樓板應(yīng)力的有限元結(jié)果和樓板配筋計算公式，得到了樓板配筋量，最終通過有限元模型驗算了樓板配筋的合理性。分析結(jié)果表明，斜柱框架-核心筒結(jié)構(gòu)的樓板不僅在恒荷載、活荷載下產(chǎn)生較大的內(nèi)力，豎向構(gòu)件差異變形和外框斜柱對樓板的受力也有較大影響，設(shè)計時要充分考慮。
［關(guān)鍵詞］框架-核心筒結(jié)構(gòu)； 樓板； 塑性損傷本構(gòu)； 分層殼單元
中圖分類號：TU312文獻標(biāo)識碼：A文章編號：1002-848X(2018)01-0009-05
Stress analysis of floors in a frame-corewall structure with inclined columns
Wang Hongxin1,2, Ma Zhenyan2, Wang Jinwen2, Zhang Meisong2, Li Qiang2
(1 Shenzhen Branch of China Constrution Science & Technology Group Co., Ltd., Shenzhen 518000, China; 2 Zhubo Design Group ＆ Research Institute Co., Ltd., Shenzhen 518000, China)
Abstract:Based on the reasonable plasticity damage constitutive model and multi-layer shell element, the finite element software ABAQUS was used to analyze the mechanical conditions of floors in a frame-corewall structure with inclined columns. Some effects were considered in the analysis of floors, such as dead and live loads, vertical component differential deformation and the outer frame inclined columns. Based on the finite element analysis results of floor stress and calculating formula of floor reinforcement, the amount of floor reinforcement was obtained. Finally, the rationality of the floor reinforcement was checked through the finite element models. It shows that the floor structure of frame-corewall structure with inclined columns produces great internal force under constant load and live loads, and vertical component differential deformation and outer frame inclined columns also have great influence on the floor force. Above conditions should be fully considered in design.
Keywords:frame-corewall structure; floor slab; plasticity damage constitutive model; multi-layer shell element
*國家重點研發(fā)計劃項目（2016YFC0701509，2017YFC0703609）。
作者簡介：王洪欣，博士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email:wanghongxin15@163.com。
