FRP筋混凝土梁弯曲试验及设计方法探讨
- 摘 要
-
(济南大学土木建筑学院,济南 250022)[摘要]利用我国自主开发的FRP复合筋加工混凝土梁式构件,采用两点加荷方式进行了弯曲试验,测定了单调荷载作用下的梁的挠度与相应的荷载关系曲线,研究了配筋率、与混凝土的粘接作用等因素对构件承载能力、变形性能的影响,分析了FRP筋混凝土梁在荷载作用下的变形特征和破坏形态,提出了FRP筋混凝土梁设计方法。[关键词]FRP筋;混凝土梁;荷载-挠度曲线;延性Test and design method on flexural resistance performance of concrete beam with FRP barXu Xinsheng, Ji Tao, Zheng Yongfeng(College of Civil Construction of Jinan University, Jinan 250022, China)Abstract:Utilizing FRP complex bar developed independently by China to process beam type construction member of concrete, it has adopted two points loading method to conduct flexural test, measuring deflection and corresponding load relation curve of beam under simple load action, researching influence of factors of ratio of bar arrangement, adhesive bonding action with concrete, etc. to loading capacity and deformability of construction member, analyzing deformation characteristics and destruction form of FRP bar concrete beam under load action, deriving calculation formula for loading capacity of FRP bar concrete beam, putting forward design method for FRP bar concrete beam. It has supplied reference for engineering technical personnel to conduct FRP bar concrete structural design, construction and formulating of corresponding norm.Keywords:FRP bar; concrete beam; load-deflection curve; ductility*山东省教育厅科技攻关项目(J01E06)。作者简介:徐新生,硕士,教授,Email:xinsheng-xu@163.com。参考文献[1]丸山武彦.连NFDA2NFDA3NFDA4材(FRP)を用いたコンクリトのNFDA5状と将来、コンクリト工学.1997.[2]连NFDA2NFDA3NFDA4材コンクリト诸性质和设计法.(日本)建设省大臣官房技术调查室监修连NFDA2NFDA3NFDA4材コンクリト编集委员会编.[3]丸山武彦.新素材『FRPロッド』とコンクリト.セメント·コンクリト.1994(1).[4]徐新生,等.碳纤维筋混凝土结构设计及施工技术探讨[J].山东建材学院学报,2000(4).[5]NFDA6文夫,等.カンチレバケブル炭素NFDA3NFDA4NFDANFDA8材材を用いたPCラメン桥[J].コンクリト工学, 1993(12).[6]薛伟辰.纤维塑料筋混凝土梁受力性能的试验研究[J].工业建筑,1999(12).[7]高丹盈.纤维聚合物筋混凝土梁正截面性能的试验研究[J].工业建筑,2001(9).[8]徐新生,等.连续纤维增强混凝土的研究及应用[J].建筑技术开发,1996(6).[9]American-Concrete Institute. Guide for the Design and Construction of Concrete Reinforced with FRP Bars[R].Report No.ACI440R-01, Detroit, Michigan, 2001.