FRP加固砖砌体的抗剪承载力研究
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摘要
为了研究纤维增强复合材料(FRP)加固后砖砌体的抗剪承载力,对1片未加固带壁柱墙体及8片FRP加固的带壁柱墙体进行了抗震性能试验;在FRP与砖界面黏结-滑移本构关系基础上,考虑FRP与墙体的界面剥离,将界面黏结力转化为桁架模型中的拉力,并考虑FRP的直接加固作用与间接加固作用,建立了FRP加固砖砌体抗剪承载力的理论计算模型。结果表明:该模型所得结果与试验结果及其他研究结果吻合较好,且可以很好地计算FRP加固后砖砌体的抗剪承载力。
In order to study the shear capacity of brick masonry strengthened by fiber reinforced polymer(FRP),the seismic performance tests of one piece of normal masonry wall and eight pieces of brick masonry walls strengthened by FRP were carried out.Based on the bond and slip constitutive relation of FRP and brick interface,the influence of interfacial debonding of FRP was taken into account,and the interfacial adhesion to tension of truss bar model was transformed,meanwhile,the direct and indirect reinforcement effects of FRP were considered.Finally,the theoretical calculation model of shear capacity for brick masonry strengthened by FRP was established.Results show that it has an excellent coincidence with the experimental results which is derived from the test,and the shear capacity for brick masonry strengthened by FRP can be well calculated by using the model.
In order to study the shear capacity of brick masonry strengthened by fiber reinforced polymer(FRP),the seismic performance tests of one piece of normal masonry wall and eight pieces of brick masonry walls strengthened by FRP were carried out.Based on the bond and slip constitutive relation of FRP and brick interface,the influence of interfacial debonding of FRP was taken into account,and the interfacial adhesion to tension of truss bar model was transformed,meanwhile,the direct and indirect reinforcement effects of FRP were considered.Finally,the theoretical calculation model of shear capacity for brick masonry strengthened by FRP was established.Results show that it has an excellent coincidence with the experimental results which is derived from the test,and the shear capacity for brick masonry strengthened by FRP can be well calculated by using the model.
引文
[1]TRIANTAFILLOU T C,FARDIS M N.AdvancedComposites for Strengthening Historic Structures[C]//IABSE.Proceedings of IABSE Symposium onStructural Preservation of the Architectural Herit-age.Rome:IABSE,1993:92-112.
[2]TRIANTAFILLOU T C.Strengthening of MasonryStructures Using Epoxy-bonded FRP Laminates[J].Journal of Composites for Construction,1998,2(2):96-104.
[3]TRIANTAFILLOU T C,ANTONOPOULOS C P.Design of Concrete Flexural Members Strengthenedin Shear with FRP[J].Journal of Composites forConstruction,2000,4(4):198-205.
[4]International Conference of Building Officials.Ac-ceptance Criteria for Concrete and Reinforced andUnreinforced Masonry Strengthened Using Fiber-re-inforced Polymers,Composite Systems[R].Whittier:ICBO,2001.
[5]ENV 1996-1-1,Design of Masonry Structures[S].
[6]赵彤,张晨军,谢剑,等.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,2001,21(2):89-95.ZHAO Tong,ZHANG Chen-jun,XIE Jian,et al.Ex-perimental Study on Seismic Reinforcement of BrickMasonry Walls with Continuous Carbon Fiber Sheet[J].Earthquake Engineering and Engineering Vibra-tion,2001,21(2):89-95.
[7]林磊,叶列平.FRP加固砖砌体墙的试验研究与分析[J].建筑结构,2005,35(3):21-27.LIN Lei,YE Lie-ping.Experimental Investigation onMasonry Wall Strengthened with FRP[J].BuildingStructure,2005,35(3):21-27.
[8]GU X L,ZHANG W P,OUYANG Y,et al.ShearingCapacity of Masonry Structural Walls Strengthenedby CFRP Plates[J].Science and Engineering of Com-posite Materials,2005,12(3):193-202.
[9]顾祥林,叶芳菲,张伟平,等.CFRP板加固砖墙的抗剪承载力[J].结构工程师,2005,21(6):64-67.GU Xiang-lin,YE Fang-fei,ZHANG Wei-ping,et al.Shearing Capacity of Brick Walls Strengthened byCFRP Plates[J].Structural Engineers,2005,21(6):64-67.
[10]张祥顺.碳纤维布加固砌体结构试验研究[D].武汉:武汉理工大学,2003.ZHANG Xiang-shun.Experimental Study of Mason-ry Walls Strengthened by CFRP[D].Wuhan:WuhanUniversity of Technology,2003.
[11]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.RUAN Ji-min.Experimental Research of HollowBrick Masonry Strengthened with Common GFRPSheet[D].Hangzhou:Zhejiang University,2003.
[12]王欣.纤维复合材料加固砌体墙片的抗震试验研究[D].上海:同济大学,2003.WANG Xin.Experimental Study on Seismic Behaviorof Masonry Structures Strengthened by Fiber Rein-forced Plastics[D].Shanghai:Tongji University,2003.
[13]温利明.芳纶纤维加固砖砌体的抗震性能试验研究[D].泉州:华侨大学,2003.WEN Li-ming.Experimental Research on ShearStrength and Seismic Behavior of Brick MasonryWalls Reinforced with Aramid Fiber Reinforced Poly-mer[D].Quanzhou:Huaqiao University,2003.
[14]刘迪.GFRP加固带壁柱砖墙抗剪性能试验研究[D].泉州:华侨大学,2005.LIU Di.Experimental Research on Shear Perform-ance of Brick Masonry Walls with Pilaster Reinforcedby GFRP[D].Quanzhou:Huaqiao University,2005.
[15]柴振岭.GFRP加固带壁柱砖墙抗震性能试验研究[D].泉州:华侨大学,2005.CHAI Zhen-ling.An Experimental Study on the Seis-mic Performance of Brick Masonry Walls with Pilas-ter Reinforced by GFRP[D].Quanzhou:HuaqiaoUniversity,2005.
[16]黄奕辉.FRP与砖界面行为及其应用研究[D].泉州:华侨大学,2008.HUANG Yi-hui.Studies on FRP-brick Interface andIts Application[D].Quanzhou:Huaqiao University,2008.
[17]叶芳菲.碳纤维板加固砖墙抗震性能的试验研究及有限元分析[D].上海:同济大学,2005.YE Fang-fei.Experimental Study and Finite ElementAnalysis on Seismic Behavior of Brick WallsStrengthened with CFRP Plates[D].Shanghai:Tongji University,2005.
[18]潘华,邱洪兴,朱星彬.碳纤维布抗震加固砖砌体墙的试验研究[J].建筑结构,2006,36(7):67-70.PAN Hua,QIU Hong-xing,ZHU Xing-bin.Experi-mental Study on Seismic Reinforced of Brick MasonryWalls with Carbon Fiber Reinforced Polymer(CFRP)[J].Building Structure,2006,36(7):67-70.
[19]GB 50003—2001,砌体结构设计规范[S].GB 50003—2001,Code for Design of Masonry Struc-tures[S].
[20]施楚贤.砌体结构理论与设计[M].2版.北京:中国建筑工业出版社,2003:65-70.SHI Chu-xian.Theory and Design of Masonry Struc-ture[M].2nd ed.Beijing:China Architecture&Building Press,2003:65-70.
[21]砖石结构设计规范抗震设计研究组.无筋墙体的抗震剪切强度[J].建筑结构学报,1984,5(6):1-12.Research Group on Aseismic Design in MasonryStructure Design Code.Aseismic Shear Strength ofMasonry Wall Without Reinforcement[J].Journal ofBuilding Structures,1984,5(6):1-12.
[22]GBJ 3—88,砌体结构设计规范[S].GBJ 3—88,Code for Design of Masonry Structures[S].
[23]王庆霖.无筋砌体的抗震剪切强度[C]//钱义良,施楚贤.砌体结构研究论文集.长沙:湖南大学出版社,1989:103-115.WANG Qing-lin.Aseismatic Shear Strength of Unre-inforced Masonry[C]//QIAN Yi-liang,SHI Chu-xian.Research Symposium of Masonry Structure.Changsha:Hunan University Press,1989:103-115.
[24]王溥,夏春红.纤维布加固砖砌体抗弯试验研究[J].工业建筑,2004,34(增):287-289.WANG Pu,XIA Chun-hong.Out-of-plane FlexuralPerformance Research of Masonry Wall Strength-ening with FRP Sheets[J].Industrial Construction,2004,34(S):287-289.
[25]刘新强.FRP加固砌体基本力学性能试验[D].沈阳:沈阳建筑大学,2005:10-58.LIU Xin-qiang.Experimental Study on the Mechan-ical Properties of Masonry Reinforced with FRP[D].Shenyang:Shenyang Architectural University,2005:10-58.
[2]TRIANTAFILLOU T C.Strengthening of MasonryStructures Using Epoxy-bonded FRP Laminates[J].Journal of Composites for Construction,1998,2(2):96-104.
[3]TRIANTAFILLOU T C,ANTONOPOULOS C P.Design of Concrete Flexural Members Strengthenedin Shear with FRP[J].Journal of Composites forConstruction,2000,4(4):198-205.
[4]International Conference of Building Officials.Ac-ceptance Criteria for Concrete and Reinforced andUnreinforced Masonry Strengthened Using Fiber-re-inforced Polymers,Composite Systems[R].Whittier:ICBO,2001.
[5]ENV 1996-1-1,Design of Masonry Structures[S].
[6]赵彤,张晨军,谢剑,等.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,2001,21(2):89-95.ZHAO Tong,ZHANG Chen-jun,XIE Jian,et al.Ex-perimental Study on Seismic Reinforcement of BrickMasonry Walls with Continuous Carbon Fiber Sheet[J].Earthquake Engineering and Engineering Vibra-tion,2001,21(2):89-95.
[7]林磊,叶列平.FRP加固砖砌体墙的试验研究与分析[J].建筑结构,2005,35(3):21-27.LIN Lei,YE Lie-ping.Experimental Investigation onMasonry Wall Strengthened with FRP[J].BuildingStructure,2005,35(3):21-27.
[8]GU X L,ZHANG W P,OUYANG Y,et al.ShearingCapacity of Masonry Structural Walls Strengthenedby CFRP Plates[J].Science and Engineering of Com-posite Materials,2005,12(3):193-202.
[9]顾祥林,叶芳菲,张伟平,等.CFRP板加固砖墙的抗剪承载力[J].结构工程师,2005,21(6):64-67.GU Xiang-lin,YE Fang-fei,ZHANG Wei-ping,et al.Shearing Capacity of Brick Walls Strengthened byCFRP Plates[J].Structural Engineers,2005,21(6):64-67.
[10]张祥顺.碳纤维布加固砌体结构试验研究[D].武汉:武汉理工大学,2003.ZHANG Xiang-shun.Experimental Study of Mason-ry Walls Strengthened by CFRP[D].Wuhan:WuhanUniversity of Technology,2003.
[11]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.RUAN Ji-min.Experimental Research of HollowBrick Masonry Strengthened with Common GFRPSheet[D].Hangzhou:Zhejiang University,2003.
[12]王欣.纤维复合材料加固砌体墙片的抗震试验研究[D].上海:同济大学,2003.WANG Xin.Experimental Study on Seismic Behaviorof Masonry Structures Strengthened by Fiber Rein-forced Plastics[D].Shanghai:Tongji University,2003.
[13]温利明.芳纶纤维加固砖砌体的抗震性能试验研究[D].泉州:华侨大学,2003.WEN Li-ming.Experimental Research on ShearStrength and Seismic Behavior of Brick MasonryWalls Reinforced with Aramid Fiber Reinforced Poly-mer[D].Quanzhou:Huaqiao University,2003.
[14]刘迪.GFRP加固带壁柱砖墙抗剪性能试验研究[D].泉州:华侨大学,2005.LIU Di.Experimental Research on Shear Perform-ance of Brick Masonry Walls with Pilaster Reinforcedby GFRP[D].Quanzhou:Huaqiao University,2005.
[15]柴振岭.GFRP加固带壁柱砖墙抗震性能试验研究[D].泉州:华侨大学,2005.CHAI Zhen-ling.An Experimental Study on the Seis-mic Performance of Brick Masonry Walls with Pilas-ter Reinforced by GFRP[D].Quanzhou:HuaqiaoUniversity,2005.
[16]黄奕辉.FRP与砖界面行为及其应用研究[D].泉州:华侨大学,2008.HUANG Yi-hui.Studies on FRP-brick Interface andIts Application[D].Quanzhou:Huaqiao University,2008.
[17]叶芳菲.碳纤维板加固砖墙抗震性能的试验研究及有限元分析[D].上海:同济大学,2005.YE Fang-fei.Experimental Study and Finite ElementAnalysis on Seismic Behavior of Brick WallsStrengthened with CFRP Plates[D].Shanghai:Tongji University,2005.
[18]潘华,邱洪兴,朱星彬.碳纤维布抗震加固砖砌体墙的试验研究[J].建筑结构,2006,36(7):67-70.PAN Hua,QIU Hong-xing,ZHU Xing-bin.Experi-mental Study on Seismic Reinforced of Brick MasonryWalls with Carbon Fiber Reinforced Polymer(CFRP)[J].Building Structure,2006,36(7):67-70.
[19]GB 50003—2001,砌体结构设计规范[S].GB 50003—2001,Code for Design of Masonry Struc-tures[S].
[20]施楚贤.砌体结构理论与设计[M].2版.北京:中国建筑工业出版社,2003:65-70.SHI Chu-xian.Theory and Design of Masonry Struc-ture[M].2nd ed.Beijing:China Architecture&Building Press,2003:65-70.
[21]砖石结构设计规范抗震设计研究组.无筋墙体的抗震剪切强度[J].建筑结构学报,1984,5(6):1-12.Research Group on Aseismic Design in MasonryStructure Design Code.Aseismic Shear Strength ofMasonry Wall Without Reinforcement[J].Journal ofBuilding Structures,1984,5(6):1-12.
[22]GBJ 3—88,砌体结构设计规范[S].GBJ 3—88,Code for Design of Masonry Structures[S].
[23]王庆霖.无筋砌体的抗震剪切强度[C]//钱义良,施楚贤.砌体结构研究论文集.长沙:湖南大学出版社,1989:103-115.WANG Qing-lin.Aseismatic Shear Strength of Unre-inforced Masonry[C]//QIAN Yi-liang,SHI Chu-xian.Research Symposium of Masonry Structure.Changsha:Hunan University Press,1989:103-115.
[24]王溥,夏春红.纤维布加固砖砌体抗弯试验研究[J].工业建筑,2004,34(增):287-289.WANG Pu,XIA Chun-hong.Out-of-plane FlexuralPerformance Research of Masonry Wall Strength-ening with FRP Sheets[J].Industrial Construction,2004,34(S):287-289.
[25]刘新强.FRP加固砌体基本力学性能试验[D].沈阳:沈阳建筑大学,2005:10-58.LIU Xin-qiang.Experimental Study on the Mechan-ical Properties of Masonry Reinforced with FRP[D].Shenyang:Shenyang Architectural University,2005:10-58.
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