FRP筋混凝土梁设计理论研究的中期报告.docx

FRP筋混凝土梁设计理论研究的中期报告
摘要：
本研究旨在探讨FRP筋混凝土梁的设计理论，研究了FRP筋的力学性能、混凝土与FRP筋的粘结性能、梁的受力性能等。通过对FRP筋的弹性模量、屈服强度、断裂强度等性能参数进行实验测定，得出了FRP筋与钢筋的对比结果，验证了FRP筋在某些方面具有优异的力学性能。在混凝土与FRP筋粘结性能方面，本研究依据ACI440.2R-08标准采用了剥离试验和钢筋单抽试验进行实验研究，结果表明FRP筋与混凝土之间有较好的粘结性能。在梁的受力性能方面，本研究采用ANSYS软件建立了三维有限元模型进行了数值模拟分析，结果表明FRP筋混凝土梁具有较好的抗弯承载能力和变形能力。研究结论可以为FRP筋混凝土梁的设计提供理论指导。
关键词：FRP筋；混凝土；粘结性能；抗弯承载；有限元模拟
Abstract：
ThisstudyaimstoexplorethedesigntheoryofFRPreinforcedconcretebeams，researchedonthemechanicalpropertiesofFRPreinforcement,theadhesionpropertiesbetweenconcreteandFRPreinforcement,andthestressperformanceofbeams.Throughexperimentalmeasurementoftheelasticmodulus,yieldstrength,andfracturestrengthofFRPreinforcement,thecomparativeresultsbetweenFRPandsteelreinforcementwereobtained,verifyingthatFRPreinforcementhasexcellentmechanicalpropertiesinsomeaspects.IntermsoftheadhesionpropertiesbetweenconcreteandFRPreinforcement,thisstudyusedthepeelingtestandsinglereinforcingbarpull-outtestbasedonACI440.2R-08standardforexperimentalresearch,andtheresultsshowedthatthereisgoodadhesionbetweenFRPreinforcementandconcrete.Intermsofthestressperformanceofbeams,thisstudyusedANSYSsoftwaretoestablishathree-dimensionalfiniteelementmodelfornumericalsimulationanalysis,andtheresultsshowedthatFRPreinforcedconcretebeamshavegoodflexuralbearingcapacityanddeformationcapacity.TheresearchconclusioncanprovidetheoreticalguidanceforthedesignofFRPreinforcedconcretebeams.
Keywords:FRPreinforcement;Concrete;Adhesionproperties;Flexuralbearingcapacity;Finiteelementsimulation.