钢板混凝土组合墙轴压受力性能有限元分析  

FINITE ELEMENT ANALYSIS OF AXIAL COMPREESIVE STRESS PERFORMANCE FOR STEEL PLATE REINFORCED CONCRETE COMPOUND WALLS

作　　者：张有佳[1,2] 李小军[2,3] 

机构地区：[1]东北电力大学建筑工程学院,吉林132012 [2]中国地震局地球物理研究所,北京100081 [3]北京工业大学建筑工程学院,北京100124

出　　处：《工程力学》2016年第8期84-92,共9页Engineering Mechanics

基　　金：国家自然科学基金项目(51508074);国家自然科学基金创新群体项目(51421005);北京市属高等学校创新团队建设提升计划(IDHT20130507);东北电力大学博士启动基金项目(BSJXM-201421)

摘　　要：为了研究核电工程中钢板混凝土组合墙的承载能力以及设计参数对承载力的影响,以4个核电工程中钢板混凝土组合墙的轴压试验为基础,采用ABAQUS建立钢板混凝土组合墙的有限元模型,模型中混凝土、钢板和栓钉均采用实体模型模拟,考虑了材料非线性和钢板焊接残余应力等。研究了栓钉的受力机理,模拟了试件中钢板的屈曲变形,分析不同参数如钢板与混凝土的强度、距厚比和含钢量对承载力的影响。分析结果表明:有限元模型计算结果与试验结果吻合较好,栓钉在受力过程中始终处于弹性受力状态,混凝土强度对承载力影响最大,距厚比对钢板的屈曲影响较大,较小的距厚比能保证钢板与混凝土协同工作。To study the bearing capacity of the steel plate concrete composite wall and the effect of design parameters on the bearing capacity, finite element analysis is performed to simulate the steel plate concrete composite wall using ABAQUS, based on the experiment of 4 steel plate concrete composite wall for nuclear power engineering. Concrete, steel plate and stud are simulated by solid models. The nonlinear behavior of materials and residual stress of welded steel plate are taken into account in the analysis. The stress mechanism of stud is investigated, and the buckling deformation of steel plate is simulated. Various parameters are investigated, such as the strength of the steel and concrete, distance to thickness ratio, steel content that effects the bearing capacity. The results of finite element analysis are found to be in good agreement with the experimental results; the stud are always in the elastic stress state; concrete strength has biggest influence on the bearing capacity; the distance to thickness ratio has great effect on the buckling of steel plates, and smaller ratio of distance to thickness can ensure steel plate and concrete cooperative work.

关 键 词：钢板混凝土组合墙 有限元分析 栓钉 参数分析 距厚比 

分 类 号：TU398[建筑科学—结构工程] TU317