SHEAR BEHAVIOR OF ECC AND CONCRETE/ECC COMPOSITE BEAMS REINFORCED WITH BFRP BARS

摘要：

　　The use of fiber-reinforced polymer(FRP)reinforcement in structural engineering has attracted great attention due to high tensile strength,good fatigue performance,and inherent corrosion resistance.But the large deflection and crack width,as well as the low shear capacity and ductility of FRP reinforced concrete members always limit its application.Substitution of concrete with engineered cementitious composite(ECC),which is a class of high performance cementitious composites with pseudo-strainhardening behavior and excellent crack control,can avoid the cracking and durability problems associated with brittleness of concrete.In this research,bending test is conducted to study the shear behavior of FRP-reinforced ECC beams and FRP-reinforced concrete/ECC composite beams.According to the test results,FRP-reinforced ECC beams show much better shear properties in terms of load-carrying capacity,ductility,and damage tolerance compared with FRP-reinforced concrete beams.For ECC/concrete composite beams,strategic application of ECC can lead to considerable increase of shear strength and ductility.

关键词： Fiber-reinforced polymer (FRP) Engineered cementitious composite (ECC) Composite beam Ultimate shear strength Failure mode Ductility

作者: Dawei Gu Jinlong Pan Jixuan He

作者单位: School of Civil Engineering,Southeast University,Nanjing,China

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-4

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）