FRP加固砌体结构的研究与应用
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摘要
外贴纤维增强高分子聚合物复合材料(FRP)加固技术近年来在砌体结构的修复加固中得到应用.外贴FRP加固技术既适用于墙体局部开裂的加固又适用于墙体承载力不足的加固.介绍了近年来,国内外学者研究、开发和应用FRP材料进行砌体结构加固的试验和理论研究进展,详细介绍了FRP加固砌体结构抗剪、抗震、平面外抗弯性能以及FRP与砌体黏结性能研究进展.研究成果表明,外贴FRP加固可以提高砌体结构的抗剪和平面外抗弯极限承载力,改善结构的抗震性能,避免了由于砖砌体的脆性破坏而导致整体结构的突然破坏.同时介绍了欧洲古建筑采用FRP进行修复加固等FRP加固砌体结构工程应用情况.在总结以往研究成果的基础上提出了有关设计、施工建议,供实际加固改造工程应用参考.
FRP laminates are being successfully used for strengthening of existing masonry structures because of their superior properties.State-of-the-art survey of the experimental study and theory research on masonry walls strengthened with FRP composites were discussed.The shear properties,anti-seismic performance,large eccentric compression performance and interface bond behavior between FRP sheet and masonry wall strengthened with FRP composites were analyzed.Research results indicate that performances of FRP strengthened masonry structures are improved obviously in terms of seismic resistance,shear resistance and ultimate flexural bearing capacity under large eccentric compression.The application of such strengthening procedure to ancient masonry structures buildings with bonding FRP sheets was introduced too.At last,several conclusions were obtained,and they are valuable for references to design,construction and practical engineering.
FRP laminates are being successfully used for strengthening of existing masonry structures because of their superior properties.State-of-the-art survey of the experimental study and theory research on masonry walls strengthened with FRP composites were discussed.The shear properties,anti-seismic performance,large eccentric compression performance and interface bond behavior between FRP sheet and masonry wall strengthened with FRP composites were analyzed.Research results indicate that performances of FRP strengthened masonry structures are improved obviously in terms of seismic resistance,shear resistance and ultimate flexural bearing capacity under large eccentric compression.The application of such strengthening procedure to ancient masonry structures buildings with bonding FRP sheets was introduced too.At last,several conclusions were obtained,and they are valuable for references to design,construction and practical engineering.
引文
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[4]Ehsani MR,Saadatmanesh H.Shear behavior of URMretrofittedwith FRP overlays[J].Journal of Composites for Construction,1997,1(1):17-25.
[5]Corradi M,Borri A,Vignoli A.Strengthening techniques testedon masonry structures struck by the marche earthquake of1997—1998[J].Construction and Building Materials,2002,16(4):229-239.
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[15]张祥顺,谷倩,彭少民.CFRP对砖墙抗震加固对比试验研究与计算分析[J].世界地震工程,2003,19(1):77-82.
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[20]潘冰,戴凤微,孙宏,等.多孔砖砌体粘贴玻璃纤维布的抗震加固计算[J].南京工业大学学报:自然科学版,2006,28(2):63-67.
[21]孙绪杰,潘景龙.小砌块FRP复合墙体受剪承载力研究[J].低温建筑技术,2006,109(1):103-105.
[22]刘明,刘新强,刘骥夫,等.FRP加固砌体拉拔力与纤维应变布应变关系的试验研究[J].福州大学学报,2005,33(增刊):223-227.
[23]陈莹,王全凤,黄奕辉.GFRP复合材料与砖界面黏结性能的数值模拟[J].工程力学,2007,24(5):119-124.
[24]Velazquez-Dimas J,Ehsani MR.Modeling out-of-plane behaviorof URM walls retrofitted with fiber composites[J].Journal ofComposites for Construction,2000,4(4):172-181.
[25]Michael L A,Alaa E E,Cheng J T.Strengthening of unreinforcedmasonry walls using FRP[J].Journal of Composites for Con-struction,2001,5(2):76-84.
[26]Triantafillou TC.Strengthening of masonry structures using epox-y-bonded FRP laminates[J].Journal of Composites for Construc-tion,1998,2(2):96-103.
[27]Gilstrap J M,Dolan C W.Out-of plane bending of FRP-reinforcedmasonry walls[J].Composites Science and Technology,1998,58(8):1277-1284.
[28]Kiss R M,Kollar L P,Jai J,et al.Masonry strengthened withFRP subjected to combined bending and compression:partⅡ-tests and model predictions[J].Journal of Composite Materials,2002,36(9):1049-1063.
[29]Tumialan G,Galati N,Nanni A.Fiber-reinforced polymer strength-ening of unreinforced masonry walls subject to our-of-plane loads[J].ACI Structural Journal,2003,100(3):321-329.
[30]Tan K H,Patoary MK H.Strengthening of masonry walls againstout-plane loads using fiber-reinforced polymer Reinforcement[J].Compos Constr,2003,8(1):170-178.
[31]Marfia S,Sacco E.Modeling of reinforced masonry elements[J].International Journal of Solids and Structures,2001,38(24/25):4177-4198.
[32]Cecchi A,Milani G,Tralli A.In-plane loaded CFRP reinforcedmasonry walls:mechanical characteristics by homogenization pro-cedures[J].Composites Science and Technology,2004,64(13/14):2097-2112.
[33]Corradi M,Borri A,Vignoli A.Strengthening techniques testedon masonry structures struck by the umbria-marche earthquake of1997—1998[J].Construction and Building Materials,2002,16(4):229-239.
[34]Ehsani M R,Saadatmanesh H.Seismic retrofit of URM wallswith fiber composites[J].The Masonry Society Journal,1996,14(2):63-72.
[35]李玉,王社良,赵祥,等.某古塔抗震及碳纤维加固性能分析[J].工业建筑,2006,36(6):104-107.
[36]叶斌.应用芳纶纤维加固砖砌体的抗震性能[J].福建工程学院学报,2004,2(2):207-210.
[2]Seible F.Repair and seismic retest of a full-scale reinforced ma-sonry building[C]∥Proceedings of the 6th international Confer-ence on Structural Faults and Repair.Edinburgh:EngineeringTechnics Press:1995:229-236.
[3]Croco G,Ayala D,Asdia P,et al.Analysis on shear walls rein-forced with fibers[C]∥IABSE Symp on Safety and Quality As-surance of Civil Engineering Structures.Tokyo:IABSE,1987:125-132.
[4]Ehsani MR,Saadatmanesh H.Shear behavior of URMretrofittedwith FRP overlays[J].Journal of Composites for Construction,1997,1(1):17-25.
[5]Corradi M,Borri A,Vignoli A.Strengthening techniques testedon masonry structures struck by the marche earthquake of1997—1998[J].Construction and Building Materials,2002,16(4):229-239.
[6]Schweglert G.Strengthening of masonry with fiber composites[D].Zurich:University of Zurich,1994.
[7]Straford T,Pascale G,Manfroni O,et al.Shear strengtheningmasonry panels with sheet glass-fiber reinforced polymer[J].Journal of Composites for Construction,2004,8(5):434-443.
[8]黄奕辉,王全凤,刘迪,等.GFRP复合材料加固带壁柱砖墙抗剪性能试验研究[J].四川建筑科学研究,2006,32(5):67-73.
[9]林磊.GFRP加固砌体墙的试验研究[C]∥第二届全国土木工程用纤维增强复合材料学术交流会.北京:建筑工业出版社,2002.
[10]于敬海,赵彤,罗振彪,等.碳纤维布改善混凝土小型空心砌块墙体抗震性能的试验研究[J].地震工程与工程振动,2003,23(1):103-109.
[11]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,2001,2l(2):89-95.
[12]赵彤,张晨军,谢剑,等.碳纤维布加固开裂砖墙的试验研究[J].特种结构,2002,19(1):58-62.
[13]王欣,陆周导,吕西林.碳纤维技术在砌体结构抗震加固中的试验研究[J].工业建筑,2003,33(9):11-13.
[14]王溥,姜浩,夏春红.纤维增强复合材料加固砌体抗震性能实验研究[J].施工技术,2004,33(6):18-19.
[15]张祥顺,谷倩,彭少民.CFRP对砖墙抗震加固对比试验研究与计算分析[J].世界地震工程,2003,19(1):77-82.
[16]张祥顺,谷倩,管克俭,等.碳纤维布加固砌体结构试验研究[J].武汉理工大学学报,2002,24(11):29-32.
[17]孙雪梅.碳纤维布用于砌体墙片底部锚固的试验研究[J].国外建材科技,2005,26(1):93-96.
[18]杨2,谷倩,彭少民,等.碳纤维布加固带门洞砌体墙片试验研究[J].武汉理工大学学报,2005,27(9):70-73.
[19]卢会芳,谷倩,孙成访,等.碳纤维布加固带窗洞砖墙抗震性能试验研究[J].武汉理工大学学报,2005,27(2):28-31.
[20]潘冰,戴凤微,孙宏,等.多孔砖砌体粘贴玻璃纤维布的抗震加固计算[J].南京工业大学学报:自然科学版,2006,28(2):63-67.
[21]孙绪杰,潘景龙.小砌块FRP复合墙体受剪承载力研究[J].低温建筑技术,2006,109(1):103-105.
[22]刘明,刘新强,刘骥夫,等.FRP加固砌体拉拔力与纤维应变布应变关系的试验研究[J].福州大学学报,2005,33(增刊):223-227.
[23]陈莹,王全凤,黄奕辉.GFRP复合材料与砖界面黏结性能的数值模拟[J].工程力学,2007,24(5):119-124.
[24]Velazquez-Dimas J,Ehsani MR.Modeling out-of-plane behaviorof URM walls retrofitted with fiber composites[J].Journal ofComposites for Construction,2000,4(4):172-181.
[25]Michael L A,Alaa E E,Cheng J T.Strengthening of unreinforcedmasonry walls using FRP[J].Journal of Composites for Con-struction,2001,5(2):76-84.
[26]Triantafillou TC.Strengthening of masonry structures using epox-y-bonded FRP laminates[J].Journal of Composites for Construc-tion,1998,2(2):96-103.
[27]Gilstrap J M,Dolan C W.Out-of plane bending of FRP-reinforcedmasonry walls[J].Composites Science and Technology,1998,58(8):1277-1284.
[28]Kiss R M,Kollar L P,Jai J,et al.Masonry strengthened withFRP subjected to combined bending and compression:partⅡ-tests and model predictions[J].Journal of Composite Materials,2002,36(9):1049-1063.
[29]Tumialan G,Galati N,Nanni A.Fiber-reinforced polymer strength-ening of unreinforced masonry walls subject to our-of-plane loads[J].ACI Structural Journal,2003,100(3):321-329.
[30]Tan K H,Patoary MK H.Strengthening of masonry walls againstout-plane loads using fiber-reinforced polymer Reinforcement[J].Compos Constr,2003,8(1):170-178.
[31]Marfia S,Sacco E.Modeling of reinforced masonry elements[J].International Journal of Solids and Structures,2001,38(24/25):4177-4198.
[32]Cecchi A,Milani G,Tralli A.In-plane loaded CFRP reinforcedmasonry walls:mechanical characteristics by homogenization pro-cedures[J].Composites Science and Technology,2004,64(13/14):2097-2112.
[33]Corradi M,Borri A,Vignoli A.Strengthening techniques testedon masonry structures struck by the umbria-marche earthquake of1997—1998[J].Construction and Building Materials,2002,16(4):229-239.
[34]Ehsani M R,Saadatmanesh H.Seismic retrofit of URM wallswith fiber composites[J].The Masonry Society Journal,1996,14(2):63-72.
[35]李玉,王社良,赵祥,等.某古塔抗震及碳纤维加固性能分析[J].工业建筑,2006,36(6):104-107.
[36]叶斌.应用芳纶纤维加固砖砌体的抗震性能[J].福建工程学院学报,2004,2(2):207-210.
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