GFRP复合材料加固带壁柱砖墙抗剪性能试验研究
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摘要
通过5片带壁柱的墙体试件(其中包括1个对比墙),主要研究了玻璃纤维复合材料(G lass F iber Re inforced Polym er,GFRP)加固后的墙体抗剪性能。结果显示,通过GFRP的加固,带壁柱砖墙的极限荷载、极限位移和抗剪刚度都有提高,但提高幅度随加固形式的不同而异。同时,如果对墙体进行不对称加固时,会有明显的墙体扭转及GFRP剥离现象,此时加固效果差。
Through the experiment research on 5 walls(included 1 unreinforced wall),we mainly studied on the form and quantity of the reinforcement for the shear performance of the brick walls.The result showed: After reinforced with GFRP, the brick wall utmost load、utmost displacement and shear stiffness had been all increased,but the increase would be different for different form and quantity of the reinforcement.In the experiment: When the walls reinforced by unsymmetrical GFRP,the twist phenomena will occur,the effect of reinforce becomes bad and GFRP will peel.
Through the experiment research on 5 walls(included 1 unreinforced wall),we mainly studied on the form and quantity of the reinforcement for the shear performance of the brick walls.The result showed: After reinforced with GFRP, the brick wall utmost load、utmost displacement and shear stiffness had been all increased,but the increase would be different for different form and quantity of the reinforcement.In the experiment: When the walls reinforced by unsymmetrical GFRP,the twist phenomena will occur,the effect of reinforce becomes bad and GFRP will peel.
引文
[1]Taheri F,Shah in K,W id iarsa I.On the param eters influencing theperformance of reinforced concrete beam s strengthened w ith FRPplates[J],Composite Structures,2002,58(2):217-226.
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[3]吴智深.FRP复合材料在基础工程设施增强和加固方面的现状与发展[A].中国首届纤维增强塑料(FRP)混凝土结构学术交流会[C].2000,6:5-19.
[4]王全凤,岳清瑞,杨勇新.FRP复合材料及其在土木工程中的应用研究[J].华侨大学学报,2005,26(1):1-6.
[5]柴振岭,王全凤,岳清瑞,杨勇新.GFRP加固砌体结构的应用前景[J].工业建筑(增刊),2004,10:267-270.
[6]施楚贤.砌体结构理论与设计(2版)[M].北京:中国建筑工业出版社,2003.
[7]GB5003-2001,砌体结构设计规范[S].北京:中国建筑工业出版社,2001:31-32.
[8]阮积敏.普通玻璃纤维布加固多孔砖砌体的试验研究[D].杭州:浙江大学,2003.
[9]Valluzzi M R,Tinazzi D,Modena C.Shear behavior of masonrypanels strengthened by FRP lam inates[J].Construction and Bu ild-ingMaterials,2002,(16):409-416.
[10]赵彤,张晨军,谢剑,李浩菊.碳纤维布用于砖砌体抗震加固的试验研究[J].地震工程与工程振动,2001,(6):89-95.
[11]林磊.FRP加固砌体墙抗震性能的试验研究[D].北京:清华大学,2002,(1):84-85.
[12]夏春红,王溥.玻璃纤维布加固空心砖砌体抗剪性能试验研究[J].工业建筑(增刊),2004,(10):283-286.
[2]Arock iasamy M,Ch idambaram S,Am er A,Shahawy M.Tim e-de-pendent deformations of concrete beam s reinforced w ith CFRP bars[J].Composites Part B:Engineering,2000,31(6-7):577-592.
[3]吴智深.FRP复合材料在基础工程设施增强和加固方面的现状与发展[A].中国首届纤维增强塑料(FRP)混凝土结构学术交流会[C].2000,6:5-19.
[4]王全凤,岳清瑞,杨勇新.FRP复合材料及其在土木工程中的应用研究[J].华侨大学学报,2005,26(1):1-6.
[5]柴振岭,王全凤,岳清瑞,杨勇新.GFRP加固砌体结构的应用前景[J].工业建筑(增刊),2004,10:267-270.
[6]施楚贤.砌体结构理论与设计(2版)[M].北京:中国建筑工业出版社,2003.
[7]GB5003-2001,砌体结构设计规范[S].北京:中国建筑工业出版社,2001:31-32.
[8]阮积敏.普通玻璃纤维布加固多孔砖砌体的试验研究[D].杭州:浙江大学,2003.
[9]Valluzzi M R,Tinazzi D,Modena C.Shear behavior of masonrypanels strengthened by FRP lam inates[J].Construction and Bu ild-ingMaterials,2002,(16):409-416.
[10]赵彤,张晨军,谢剑,李浩菊.碳纤维布用于砖砌体抗震加固的试验研究[J].地震工程与工程振动,2001,(6):89-95.
[11]林磊.FRP加固砌体墙抗震性能的试验研究[D].北京:清华大学,2002,(1):84-85.
[12]夏春红,王溥.玻璃纤维布加固空心砖砌体抗剪性能试验研究[J].工业建筑(增刊),2004,(10):283-286.
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