Experimental study on flexural performance of corroded RC beams strengthened with AFRP sheets - 文章详情页

作者：

Deng, Zong-Cai (Deng, Zong-Cai.) (学者：邓宗才) | Lin, He-Fei (Lin, He-Fei.) | Wang, Li (Wang, Li.) | Zhang, Lian-Pu (Zhang, Lian-Pu.)

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摘要：

In　order　to　research　the　decreasing　problem　of　bearing　capacity　for　structure　members　by　chloride-induced　steel　corrosion,　the　flexural　performances　of　RC　corroded　beams　strengthened　with　AFRP　sheets　under　different　ratio　of　corrosion　(light-corroded:　reinforcement　mass　loss　is　2%,　moderate-corroded:　reinforcement　mass　loss　5.5%)　are　investigated　experimentally　in　this　paper,　and　compared　with　that　of　un-corroded　beams　and　un-strengthened　corroded　beams.　The　results　show　that,　compared　with　un-strengthened　corroded　beams　under　same　ratio　of　corrosion,　the　cracking　load,　yield　load　and　ultimate　load　of　RC　light　corroded　beam　strengthened　with　AFRP　sheets　is　respectively　increased　by　20%,　27%　and　60%,　and　increased　by　15%,　36%　and　83%　for　RC　moderate　corroded　beam　strengthened　with　AFRP　sheets　respectively;　the　ultimate　deflection　of　the　moderate　corroded　beam　strengthened　with　FRP　is　larger　than　that　of　corroded　un-strengthened　beam　166%.　AFRP　sheet　can　improve　significantly　the　bearing　capacity　and　deformation　for　RC　corroded　beams.

关键词：

Fiber reinforced plastics Steel corrosion Corrosion Fiber reinforced concrete Reinforcement Concrete beams and girders Chlorine compounds Bearing capacity

作者机构：

[ 1 ] [Deng, Zong-Cai]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Lin, He-Fei]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Wang, Li]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhang, Lian-Pu]College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China

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