摘要
本文以 62根玻璃纤维聚合物筋混凝土梁和钢筋混凝土梁的试验结果为依据 ,分析配筋率对开裂弯矩和极限弯矩的影响 .结果表明 ,配筋率对开裂弯矩的影响较小 ;当玻璃纤维聚合物筋的配筋率在平衡配筋率和弯剪界限配筋率之间变化时 ,玻璃纤维聚合物筋混凝土梁的抗弯承载力随着配筋率的增大而增加 .最后 ,讨论了玻璃纤维聚合物筋混凝土梁开裂弯矩和抗弯承载力的计算方法 .
Based on the test results of 62 concrete beams reinforced with GFRP (glass fiber reinforced polymer) bars and steel bars, the objective of this paper is to analyze the influence of reinforcement ratio on cracking and ultimate moment capacity.It is found out that the effect of reinforcement ratio on caraking moment capacity is not significant, but the ultimate capacity of the GFRP over\|reinforced concrete beams increases with the increase of the reinforcement ratio when the longitudinal reinforcement ratio ranging from balanced reinforcement ratio to limit reinforcement ratio. The corresponding formulas are recommended to calculate the craking moment and ultimate moment capacity of beams.
出处
《水利学报》
EI
CSCD
北大核心
2001年第9期73-80,共8页
Journal of Hydraulic Engineering
基金
国家自然科学基金资助项目 ( 5 99780 46 )
关键词
纤维聚合物筋
混凝土
梁
开裂弯矩
抗弯承载力
glass fiber reinforced polymer (GFRP)
concrete
beam
cracking momen capacity
ultimate moment capacity
