钢管煤矸石混凝土轴压中长柱的非弹性屈曲荷载  

Inelastic Yield Load of Gangue Concrete Filled Steel Tubular Middle Long Columns Under Axial Compression

作　　者：李帼昌[1] 龙海波[1] 王兆强[1] 

机构地区：[1]沈阳大学建筑工程学院,辽宁沈阳110044

出　　处：《沈阳建筑大学学报（自然科学版）》2004年第4期291-293,共3页Journal of Shenyang Jianzhu University：Natural Science

基　　金：辽宁省自然科学基金(9910300201)

摘　　要：论述了普通钢管混凝土结构、钢管煤矸石混凝土结构的研究及发展现状.分析了煤矸石作为二次资源代替普通砂石作骨料的可行性.并指出煤矸石混凝土灌入钢管,构成的钢管煤矸石混凝土组合材料在应用于建筑物的竖向承重构件中所具有的优越性;并用切线模量理论推导出计算钢管煤矸石混凝土轴压中长柱非弹性屈曲荷载的计算公式;进行了钢管煤矸石混凝土轴压中长柱的试验测试,将理论计算结果与实验结果进行对比;确定了钢管煤矸石混凝土轴心受压短柱与中长柱以及中长柱与长柱的界限长细比;为将钢管煤矸石混凝土结构应用于工程实践奠定了理论基础.The present situation of research and development of ordinary concrete filled steel tube structure and gangue concrete filled steel tube structure was summarized.The feasibility that gangue,a secondary resource,was substituted for ordinary sand and stone as aggregate and the superiority that gangue-concrete-filled-steel-tube composite material formed through pouring gangue concrete into steel tube was applied to perpendicular bearing members were analyzed.Inelastic yield load formula of axial compression middle long columns was deduced through the use of tangent modulus theory.Middle long columns were tested and conclusion shown that theory formula is correct.Bounds slenderness ratio among axial compression short columns,middle long columns and long columns were determined.All these lay the theoretical groundwork for the application of gangue concrete filled steel tube to engineering practice.

关 键 词：钢管煤矸石混凝土 混凝土结构 中长柱 非弹性屈曲荷载 界限长细比 轴压杆 

分 类 号：TU37[建筑科学—结构工程] TU312