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.
出处
《建筑结构》
CSCD
北大核心
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
关键词
碳/玻混杂纤维筋
预应力
混凝土梁
受弯性能
carbon/glass hybrid fiber reinforced plastic bars
prestress
concrete beam
flexural behavior
