预应力碳/玻混杂纤维筋混凝土梁受弯性能研究  

Research on flexural behaviors of prestressed concrete beams reinforced with C/G-HFRP bars

作　　者：吴小军[1] 金广谦[2] 赵亚军 张艺凡[1] 

机构地区：[1]73211部队后勤部 [2]解放军理工大学 [3]苏州市建鑫建筑安装责任有限公司

出　　处：《建筑结构》2011年第8期120-123,共4页Building Structure

基　　金：国家自然科学基金(50608069)项目资助

摘　　要：针对单一纤维的FRP筋延性较差的缺点,在采用碳/玻混杂纤维复合材料(C/G-HFRP)筋的同时,引进预应力技术。通过对2根预应力HFRP筋混凝土梁、1根普通钢筋混凝土梁和1根普通HFRP筋混凝土梁的受弯性能试验研究,分析预应力HFRP筋混凝土梁的受力过程、破坏形态、抗弯承载力和变形等,提出了等效抗弯刚度的计算模型,为HFRP筋的工程应用提供了依据。Based on the defects of low ductility of simplex FRP bars,carbon/glass hybrid fiber reinforced plastic（C/G-HFRP） bars and prestressed technology were used.The stressing process,failure patterns,flexural capacity and deformation were studied through experiment on two prestressed concrete beams reinforced with HFRP bars,one concrete beam reinforced with steel bars and one concrete beam reinforced with HFRP bars.The calculation mode for flexural stiffness of prestressed concrete beams reinforced with HFRP bars was presented which provided an evidence for engineering application.

关 键 词：碳/玻混杂纤维筋 预应力 混凝土梁 受弯性能 

分 类 号：TU528[建筑科学—建筑技术科学]