摘要
纤维增强复合筋(FRP筋)具有抗拉强度高,重量轻和耐腐蚀性等特点。可以更好地解决钢筋混凝土结构中钢筋腐蚀问题,对提高结构的耐久性有很大的作用。FRP筋应力-应变关系为线弹性,并且FRP筋的弹性模量相对较小,单独配置FRP筋的混凝土梁的变形和裂缝较大。采用钢筋与FRP筋混杂配筋混凝土梁,相对于钢筋混凝土梁产生的挠度较小。本文介绍了FRP-钢筋混杂配筋混凝土梁的抗弯承载力、最大裂缝和挠度计算方法,为相应的工程应用提供依据。
Fiber Reinforced Polymer (FRP) bars have high tensile strength,light weight,corrosion resistance,can better solve the problem of steel corrosion in reinforced concrete,and improve the durability.However,the stress-strain relationship of the FRP is linear elasticity and the elastic modulus of the FRP is small,the deflection and crack width of the FRP reinforced concrete beam are large compared with reinforced concrete beam.The deflection and crack width of the concrete beams reinforced with hybrid steel and FRP are small compared with FRP reinforced concrete beam.The flexural load carry capacity,crack width and deflection of steel and FRP hybrid reinforced concrete beams are introduced.
作者
王勃
蒙博
WANG Bo;MENG Bo(School of Civil of Engineering,JilinJianzhu University,Changchun 130118,China;Jilin Structure and Earthquake Resistance Technology Innovation Center,Changchun 130118,China)
出处
《四川建材》
2019年第4期84-85,共2页
Sichuan Building Materials
基金
国家重点研发计划项目(2017YFC0806100)
国家自然科学基金项目(51178206)
吉林省高校"十三五"科研规划项目(JJKH20170253KJ)
吉林省科技厅国际科技合作项目(20170414018GH)
