FEM ANALYSIS AND PARAMETER STUDY OF THE STEEL-CONCRETE COMPOSITE SLAB WITH PBL SHEAR CONNECTOR
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摘要: 采用有限元软件ABAQUS对带PBL剪力连接件的钢-混凝土组合板进行了三分点加载模拟,有限元中考虑了混凝土的非线性本构关系、钢板与混凝土之间的非线性接触关系。将模拟结果与试验数据进行对比,结果表明:有限元分析能较好地模拟钢-混凝土组合板的受力全过程。在探讨误差产生的原因的同时,对影响组合板受力性能的因素进行分析。结果表明:孔距和贯穿钢筋对组合板的抗弯极限承载力影响较小,对组合板的刚度影响较大。最后提出了带PBL剪力连接件的钢-混凝土组合板的抗弯承载能力理论计算公式,对参数进行重要性分析后得到满足实际工程应用的简化计算方法。Abstract: The finite element software ABAQUS was employed to simulate the steel-concrete composite slab with perfobond strip under one-third loading. Nonlinear property of concrete and steel and nonlinear contact between concrete and steel were considered in this model. The comparisons between test results and calculated results were performed in order to verify the FEM model. Comparisons indicate that the developed FEM model could represent the test exactly. And the causes of the error were discussed. Then the results of parameterized analysis show that the influence of hole distance and perforated rebar on the ultimate flexural capacity of the composite slab is very small;yet the hole distance and perforated rebar can cause considerable changes in the stiffness of the composite slab. At last calculation formulas for the ultimate flexural capacity of the composite slab were proposed and the simplified calculation method of meeting the need of engineering application was obtained after analysis of parameters.
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[2] 葛胜锦,余培玉,刘士林. 基于欧洲标准的钢-混凝土组合桥梁设计[M]. 北京:人民交通出版社, 2010. 聂建国,余志武. 钢-混凝土组合梁在我国的研究及应用[J]. 土木工程学报, 1999, 32(2): 3-8. [3] Leonhardt F, Andra W, Andra H P, et al. VorteilhaftesVerbundmittel fuer Stahlverbund-Tragwerke mit HoherDauerfestigkeit[J].Beton-und Stahlbetonbau,1987(12):325-331. [4] 胡建华,叶梅新,黄琼. PBL 剪力连接件承载力试验[J]. 中国公路学报, 2006, 19(6): 65-72. [5] 胡建华,侯文崎,叶梅新,等. PBL 剪力键承载力影响因素和计算公式研究[J]. 铁道科学与工程学报,2007,4(6):12-18. [6] 夏嵩,赵灿晖,张育智,等. PBL 传剪器极限承载力的试验研究[J]. 西南交通大学学报, 2009, 44(2):166-170. [7] 占玉林,赵人达,毛学明,等. 钢-混凝土组合桥面板试验研究与理论分析[J].西南交通大学学报,2006, 41(3):360-365. [8] 占玉林,赵人达,毛学明,等. 承受正弯矩作用的钢-混凝土组合桥面板受力性能试验[J].桥梁建设, 2006(5):5-8. [9] 杨勇,周丕健,聂建国,等. 钢板-混凝土组合桥面板静力与疲劳性能试验[J]. 中国公路学报,2009, 22(4):78-83,107. [10] 杨勇,祝刚,周丕健,等. 钢板-混凝土组合桥面板受力性能与设计方法研究[J]. 土木工程学报,2009, 42(12):135-141. [11] GB 500102010 混凝土结构设计规范[S]. [12] 庄茁,张帆,岑松, 等. ABAQUS 非线性有限元分析与实例[M]. 北京:科学出版社, 2005. [13] Kim Hyeong-Yeol,Jeong Youn-Ju. Ultimate Strength of a Steel-Concrete Composite Bridge Deck Slab with Profiled Sheeting[J].Engineering Structures, 2009(10):1-13.
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