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CFRP抗剪加固钢筋混凝土梁的耐火性能试验研究
引用本文:范鹤.CFRP抗剪加固钢筋混凝土梁的耐火性能试验研究[J].工程抗震与加固改造,2011,33(3):42-50.
作者姓名:范鹤
作者单位:华南理工大学亚热带建筑科学国家重点实验室;沈阳工业大学建筑工程学院;
基金项目:教育部科学技术研究重点项目(108106); 沈阳工业大学博士启动基金(52110132005132)
摘    要:采用厚型防火涂料对4根碳纤维布抗剪加固钢筋混凝土梁和1根对比梁进行了IS0834标准升温条件下的恒载升温耐火性能试验,得到了试验梁的测点温度、位移随时间增加的分布关系.分析了不同加载方式、剪跨比、加固量和防火保护层厚度对高温下CFRP抗剪加固梁的跨中挠度、破坏形态及耐火极限的影响.试验结果表明:在相同的弯、剪富余量,相...

关 键 词:碳纤维布  抗剪加固  耐火性能  钢筋混凝土梁  耐火试验

Experiments Study on Fire Resistance of CFRP Shear Strengthened Reinforced Concrete Beam
Fan He.Experiments Study on Fire Resistance of CFRP Shear Strengthened Reinforced Concrete Beam[J].Earthquake Resistant Engineering and Retrofitting,2011,33(3):42-50.
Authors:Fan He
Affiliation:Fan He1,2(1.State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China,2.School of Architecture and Civil Engineering,Sheyang University of Technology,Shenyang 110870,China)
Abstract:Fire-resistance performance experiments with static loading-fire are investigated about four CFRP shear strengthened and one without CFRP strengthened reinforced concrete(RC) beams exposed to the ISO834 standard fire.Shear strengthened RC beams are wrapped with fire insulation material-thick painted fire retardant coatings.Relationships between measure points temperature,displacement and time are achieved.The effects of different load mode,shear-span ratio,strength ratio and fire insulation thickness on the...
Keywords:CFRP sheet  shear strengthening  fire-resistance performance  RC beam  fire resistance experiment  
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