GFRP管钢筋混凝土组合构件抗弯承载力计算  

Bending capacity calculation of GFRP tube filled with reinforced concrete composite components

作　　者：陈百玲[1] 秦国鹏[1] 王连广[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004

出　　处：《混凝土》2010年第9期17-20,共4页Concrete

基　　金：国家教育部博士点基金项目(20050145012)

摘　　要：GFRP管钢筋混凝土组合构件是在GFRP管内设置钢筋,再在其内部浇筑混凝土而形成的一种新型组合构件。这种组合构件在弯矩作用时,GFRP管对混凝土的紧箍效应仅存在部分受压区,而对受拉区混凝土约束作用不明显,受拉区的GFRP管与钢材单独受力。分别利用极限平衡理论和统一理论,建立了GFRP管钢筋混凝土组合构件的抗弯承载力计算公式,理论计算结果与试验结果吻合良好。GFRP tube filled with reinforced concrete composite component is one new kind of composite component,that there are some rein-forcing steel bars set in GFRP tube and then pouring concrete into the tube.When the bending moments act on this kind of composite components,GFRP hooping effect only exists in a part of the compression zone,but the constraint effect on the tension zone is not obvious.The GFRP tube of the tension zone and section steel carry loads alone.So,with the limit equilibrium method and the unified theory,the calculation formulae of bend-ing bearing capacity of GFRP tube filled with reinforced concrete composite component are created.The theoretical calculated results agree well with the experimental results.

关 键 词：GFRP管 钢筋混凝土 组合构件 抗弯承载力 计算公式 

分 类 号：TU528.01[建筑科学—建筑技术科学]