(同济大学建筑工程系 上海 200092)
【提要】 提出了在截面角区用GFRP筋代替钢筋的混合配筋方法来解决结构的耐久性问题。通过对混合配筋混凝土梁在弯曲作用下的力学、使用性能进行分析，推导出混合配筋混凝土梁的极限弯矩的计算公式，并通过静力抗弯试验，对公式进行了修正和完善。
【关键词】 混凝土梁 纤维增强聚合物筋 耐久性 抗弯承载力
Bending Moment Resistance Calculation of SteelGFRP Reinforced Concrete Beam/Qu Wenjun，Chen Daopu，Huang Haiqun (Department of Building Engineering, Tongji University, Shanghai 200092, China)
Abstract:The hybrid reinforced method of replacing steel bar with FRP bar (fiber reinforcement polymer bar) in angle region to solve the problem of durability is proposed. Through analyzing the mechanics and service performance of hybrid reinforced concrete beam under the bending moment, the formula of ultimate moment is derived, and  the formula is modified by static bending experiment of hybrid reinforcement concrete beams.
Keywords:reinforced concrete beam; fiber reinforcement polymer bar; durability； flexural capacity