轴心受压方钢管-钢骨高强混凝土组合柱力学性能研究  

Study on Bearing Capacity of Steel Tubular Columns Filled with Steel-Reinforced High Strength Concrete under Axial Compression

作　　者：宋福春[1] 赵洁[1] 

机构地区：[1]沈阳建筑大学交通工程学院,沈阳市110168

出　　处：《北方交通》2016年第11期4-8,共5页Northern Communications

摘　　要：通过对不同形式的方钢管-钢骨高强混凝土组合柱的轴压力学性能进行有限元分析。研究了混凝土强度、钢管强度、钢骨强度、含骨率、宽厚比等因素对方钢管-钢骨高强混凝土组合柱受力性能的影响。有限元分析结果表明,方钢管、混凝土和钢骨之间良好的共同工作性能使方钢管-钢骨高强混凝土组合柱具有较高的承载力。提高混凝土的强度可以有效地提高方钢管-钢骨高强混凝土组合柱的承载力,但会使其延性下降。其中方钢管的强度和含骨率是影响方钢管-钢骨高强混凝土组合柱承载力的主要因素,同时宽厚比对方钢管-钢骨高强混凝土组合柱的延性有较大的影响。According to the different forms of square steel tube filled with steel reinforced high strength concrete composite columns under axial compression mechanical properties of finite element analysis. Study on the concrete strength,steel strength,the strength of steel bone,steel bone ratio and flakiness ratio than the other steel tube- mechanical performance of steel reinforced high strength concrete composite column. The finite element analysis results show that concrete and steel square tube,good working performance of the square steel tube filled with steel reinforced high strength concrete composite column has higher bearing capacity. Enhance the strength of the concrete can improve the square steel tube filled with steel reinforced high strength concrete effectively the bearing capacity of composite columns but the ductility decreased. The strength and reinforced index square steel pipe is the main factor affecting the square steel tube filled with steel reinforced high strength concrete composite column＇s bearing capacity,at the same time generous have larger effects than other steel tube steel high strength concrete composite columns ductility.

关 键 词：方钢管-钢骨高强混凝土组合柱 有限元分析 含骨率 宽厚比 

分 类 号：U441[建筑科学—桥梁与隧道工程]