钢箱-混凝土组合梁抗弯性能的试验研究  

EXPERIMENTAL STUDY ON FLEXURAL BEARING CAPACITY OF STEEL BOX-CONCRETE COMPOSITE BEAMS

作　　者：沈明燕[1] 钟新谷[1] 舒小娟[1] 

机构地区：[1]湖南科技大学,湘潭411201

出　　处：《工业建筑》2007年第z1期527-531,共5页Industrial Construction

基　　金：国家自然科学基金资助(50478099);湖南省教育厅资助科研项目(06C311)

摘　　要：通过4片钢箱-混凝土组合梁抗弯试验与理论对比分析结果可知,实测应力-应变分布规律与理论分析基本一致,荷载位移关系(M-f曲线)与理论分析结果接近,极限抗弯承载力略高于理论结果。表明钢箱-混凝土组合梁抗弯过程中内填混凝土与钢箱室壁粘结可靠,应变关系满足平截面假定,理论承载力计算公式可行且偏于安全,构件具有良好延性。Experimental study on 4 steel box-concrete composite beams is introduced.Stress-strain distribution and M-f curve tested are similar to those of calculation,and experimental ultimate flexural bearing capacity is a bit higher than that of calculation.Which means that the adhesion between steel boards and the inner concrete is reliable,which guarantees the assumption of plan section,and that the theoretical formula to calculate bearing capacity is valuable.The experimental result also shows that this kind of composite beam has good flexibility.

关 键 词：钢箱-混凝土组合梁 极限承载力 试验研究 M-f曲线 

分 类 号：TU398.9[建筑科学—结构工程]