矩形钢管混凝土轴心受压构件强度承载力的试验研究  

STUDY ON AXIAL BEARING CAPACITY OF CONCRETE?FILLED?STEEL?TUBE COLUMNS WITH RECTANGULAR SECTION

作　　者：韩林海[1] 杨有福[2] 

机构地区：[1]福州大学 [2]哈尔滨工业大学

出　　处：《土木工程学报》2001年第4期22-31,共10页China Civil Engineering Journal

基　　金：霍英东教育基金会资助项目 (0 50 1 0 64)

摘　　要：文章进行了二十四个矩形截面钢管混凝土轴心受压短柱的试验研究 ,基本参数为 :约束效应系数 ,从 0 5～ 1 3变化 ;截面长宽比 ,从 1 0～ 1 75变化。本文研究的目的在于 :( 1)分析约束效应系数和截面长宽比对矩形钢管混凝土力学性能和强度承载力的影响 ;( 2 )比较设计规程LRFD ( 1994) ,AIJ ( 1997) ,EC4( 1996 )和GJB ( 2 0 0 0 )在进行矩形钢管混凝土强度承载力计算时的差异。研究结果表明 ,约束效应系数和截面长宽比均对矩形钢管混凝土的轴压力学性能有影响。规程LRFD ( 1994) ,AIJ ( 1997) ,EC4( 1996 )和GJB ( 2 0 0 0 )计算获得的强度承载力较实验结果相比均偏于安全。其中 ,GJB与实验结果最为接近 ,更适合于矩形钢管混凝土轴压强度承载力的设计。Tests on twenty-four concrete-filled-steel-tube columns with rectangular section are carried out.The constrained factor is varied from 0 5 to 1 3.The section width ratio is adopted in the range of 1 0 to 1 75.An attempt is made to know the behavior of the concrete-filled-steel-tube columns with rectangular section and to compare with the results by on different codes.The study results have shown that the behavior of columns is effected by the above two factors.All results are somewhat conserved,but the result of code GJB is in agreement with that of the test.It is suitable to adopt the code GJB to design concrete-filled-steel-tube columns with rectangular section.

关 键 词：矩形钢管混凝土 轴心受压构件 承载力 强度 试验 

分 类 号：TU398.9[建筑科学—结构工程]