基于屈服线理论的钢-混凝土组合双向板承载力分析  

Analysis on the ultimate bearing capacity of steel-concrete composite two-way slab by Yield Line Theory

作　　者：徐宙元[1] 赵人达[1] 占玉林[1] 

机构地区：[1]西南交通大学土木工程学院,成都610031

出　　处：《建筑结构》2013年第14期67-72,共6页Building Structure

基　　金：高等学校博士学科点专项科研基金资助课题(20090184120033);西南交通大学科技发展基金资助(2009QK04)

摘　　要：为了研究一种新型的钢-混凝土组合双向板的性能,采用屈服线理论对其极限承载力进行了分析与推导。并利用有限元软件ABAQUS对3块组合双向板进行了数值模拟,建模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。与已有组合单向板试验结果的对比表明,ABAQUS软件能较合理地模拟此类带开孔钢板剪力连接件的组合板的受力性能。随后分析了钢底板厚度、开孔钢板间距对承载力的影响,并将数值模拟结果与理论计算结果进行比较,证明了采用普通直线形屈服线分布模式的计算结果是安全可行的。The behavior of a new steel-concrete composite two-way slab was studied.Based on the Yield Line Theory,a practical method to predict the ultimate load of composite slabs was proposed.Three slabs＇ behavior was analyzed using ABAQUS program.Nonlinear property of concrete and steel and nonlinear contact between concrete and steel were considered in this model.The comparison between test results and calculated results was performed in order to verify the rationality of the FEM model,and it indicates that the developed FEM model could represent the test exactly.Some parameters including the thickness steel plate and the spacing of perfobond steel plate were considered and calculated.The results reveal that the ordinarily linearity yield line mode is safe and could be used in practice.

关 键 词：钢-混凝土组合结构 双向板 开孔钢板 屈服线理论 极限承载力 

分 类 号：TU398[建筑科学—结构工程]