纤维增强塑料筋混凝土梁延性的计算方法  

Calculation Method for Ductility of Concrete Beam Reinforced by Fiber Reinforced Plastic Rebar

作　　者：李趁趁[1] 高丹盈[2] 谢晓鹏[2] 张钢琴[2] 

机构地区：[1]大连理工大学土木学院,辽宁大连116023 [2]郑州大学环境与水利工程学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2004年第2期44-47,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家自然科学基金资助项目(59978046)

摘　　要：根据纤维增强塑料筋(FRP筋)及其混凝土梁的力学性能,建立了纤维增强塑料筋混凝土梁达到纤维增强塑料筋名义屈服强度的截面曲率和梁最终破坏的截面曲率的表达式.以此为基础,探讨了纤维增强塑料筋混凝土梁截面曲率延性的计算方法.结果表明,纤维增强塑料筋混凝土梁截面曲率延性系数分别随纤维增强塑料筋配筋率的减小和混凝土强度的提高而增大.　Based on the mechanical properties of fiber reinforced plastic rebar (FRP) and concrete beam, the expressions of cross section curvature at specified yield point of FRP and at failure of beam are established. On this basis, the calculating method of cross sectional ductility is studied and the consequent results indicate that, according to two kinds of calculating methods in the thesis, the curvature ductility coefficients increase with the decrease of FRP reinforcement ratio and increase of concrete strength.

关 键 词：纤维增强塑料筋 混凝土梁 延性 力学性能 截面曲率 

分 类 号：TU375.1[建筑科学—结构工程]