矩形钢管橡胶混凝土短柱强度承载力试验  

Experiments on bearing capacity of crumb rubber concrete-filled steel tubular stub column with rectangular section

作　　者：刘艳华[1,2] 梁力[1] 任庆新[3] 白义奎[2] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110819 [2]沈阳农业大学水利学院,沈阳110866 [3]沈阳建筑大学土木工程学院,沈阳110168

出　　处：《沈阳工业大学学报》2011年第3期355-360,共6页Journal of Shenyang University of Technology

基　　金：辽宁省博士启动基金资助项目(20091064);建设部科技计划基金资助项目(2009-K2-35)

摘　　要：为了探讨橡胶粉取代率和橡胶粉粒径对矩形钢管橡胶混凝土力学性能的影响,进行了8个矩形钢管橡胶混凝土轴心受压短柱的试验研究,比较了设计规程(如美国ACI(2005)和AISC(2005)、日本AIJ(2008)、英国BS5400(2005)、欧洲EC4(2004)及中国CECS(2004))对矩形钢管橡胶混凝土强度承载力的适用性.结果表明:橡胶粉取代率和橡胶粉粒径均对矩形钢管橡胶混凝土力学性能影响显著,上述各设计规程计算获得的强度承载力与试验结果相比均偏于安全,可为实际工程提供参考.In order to investigate the effects of crumb rubber replacement ratio and crumb rubber particle size on the mechanical properties of crumb rubber concrete-filled steel tubular stub column with rectangular section, the experimental research were carded out for eight crumb rubber concrete-filled steel tubular stub columns under axial compression. The applicability in calculating the bearing capacity of crumb rubber concrete-filled steel tubular stub column for different design specifications including ACI （2005, American）, AISC （2005, American）, AIJ （2008, Japan）, BS5400 （2005, England）, EC4 （2004, Europe） and CECS （2004, China） was compared. The results show that the crumb rubber replacement ratio and crumb rubber particle size have the obvious influence on the mechanical properties of the crumb rubber concrete-filled steel tubular stub column. Compared with the experimental results, the bearing capacity calculated by above-mentioned design specifications tends to be safe, and can provide the references for practical engineering.

关 键 词：钢管混凝土 橡胶混凝土 短柱 强度承载力 矩形截面 设计规范(程) 橡胶粉取代率 橡胶粉粒径 

分 类 号：TU201.4[建筑科学—建筑设计及理论]