利用FRP材料的钢筋混凝土桥墩震后修复效果影响因素分析
|
摘要
为研究基于FRP材料的钢筋混凝土桥墩震后修复技术,以Seible等提出的基于FRP材料的桥墩抗震加固设计计算公式为基础,分析了填补材料、箍筋等因素对震后破坏桥墩修复效果的影响。提出以折减系数k表示箍筋震后抗剪承载力损失;采用高流动性早强混凝土作为填补材料时,混凝土强度应比原桥墩混凝土强度适当提高;为使修复后的钢筋混凝土桥墩承载力和延性得到较好地恢复,需考虑FRP用量及粘贴形式、桥墩纵筋、长细比、截面形式、轴压比等因素对修复效果的影响。
To research the repair techniques for earthquake-damaged RC bridge piers by using FRP composites,the influence factors for repair effects including padded materials and transverse steels of the piers are evaluated based on the pier retrofit formulation suggested by Seible.The reduction factor k show the loss of strength in the transverse steels under earthquakes.When the high-fluidity and early strength concrete is used for padded material,the concrete strength should be higher than the original strength of the piers.Also,the influence factors including amounts of FRP composites and bonding forms,longitudinal steel,slenderness ratio,section shape,and axial load ratio of the bridge piers must be taken into account in order to restore the strength and ductility of the damaged bridge piers.
To research the repair techniques for earthquake-damaged RC bridge piers by using FRP composites,the influence factors for repair effects including padded materials and transverse steels of the piers are evaluated based on the pier retrofit formulation suggested by Seible.The reduction factor k show the loss of strength in the transverse steels under earthquakes.When the high-fluidity and early strength concrete is used for padded material,the concrete strength should be higher than the original strength of the piers.Also,the influence factors including amounts of FRP composites and bonding forms,longitudinal steel,slenderness ratio,section shape,and axial load ratio of the bridge piers must be taken into account in order to restore the strength and ductility of the damaged bridge piers.
引文
[1]Mitchell D,Bruneau M,Williams M,et al.Performance of bridges in the 1994 Northridge earthquake[J].Canadian Journal of Civil Engineer-ing,1995,22(2):415-427.
[2]Kawashima K.Seismic performance of RC bridge piers in Japan:an evaluation after the 1995 Hyogo-ken nanbu earthquake[J].Progress in Struc-tural Engineering and Materials,2000,2(1):82-91.
[3]Yao TH,Chung C F.Seismic effect on highway bridges in Chi-Chi earthquake[J].Journal of Performance of Constructed Facilities,ASCE,2004,18(1):47-53.
[4]孙治国,王东升,郭迅,等.汶川大地震绵竹市回澜立交桥震害调查[J].地震工程与工程振动,2009,29(4):132-138.
[5]Saadatmanesh H,Ehsani MR,Jin L.Repair of earthquake-damaged RC columns with FRP wraps[J].ACI Structural Journal,1997,94(2):206-214.
[6]Fukuyama k,Higashibata Y,Miyauchi Y.Studies on repair and strengthening methods of damaged reinforced concrete columns[J].Cement&Concrete Composites,2000,22(1):81-88.
[7]Lacobucci R D,Sheikh S A,Bayrak O.Retrofit of square concrete columns with carbon fiber-reinforced polymer for seismic Resistance[J].ACIStructural Journal,2003,100(6):785-794.
[8]Si B J,Sun Z G,Ai Q H,et al.Rapid repair of severely earthquake-damaged bridge piers[C].The 8th International Symposium on Fiber Rein-forced Polymer Reinforcement for Concrete Structures.Greece,2007,16-18.
[9]Seible F,Priestley MJ N,Hegemier G A,et al.Seismic retrofit of RC columns with continuous carbon fiber jackets[J].Journal of Compositesfor Constructions,ASCE,1997,1(2):52-62.
[10]普瑞斯特雷MJ N,塞勃勒F,卡尔维G M.桥梁抗震设计与加固[M].袁万城,胡勃,崔飞,等译.北京:人民交通出版社,1999:181-182.
[11]Saadatmanesh H,Ehsani MR,Li MW.Strength and ductility of concrete columns externally reinforced with fiber composite straps[J].ACIStructural Journal,1994,91(4):434-447.
[12]戴庆星,张征文.CFRP加固钢筋混凝土螺旋箍筋柱极限承载力分析[J].公路交通科技,2003,20(4):57-58.
[13]滕锦光,陈建飞,史密斯S T,等.FRP加固混凝土结构[M].李荣,滕锦光,顾磊译.北京:中国建筑工业出版社,2005.
[14]Pantelides C P,Yan Z H.Confinement model of concrete with externally bonded FRP jackets or posttensioned FRP shells[J].Journal of Struc-tural Engineering,ASCE,2007,133(9):1288-1296.
[15]顾冬生,吴刚,吴智深,等.FRP加固钢筋混凝土圆柱破坏模式及纤维应变特性研究[J].世界地震工程,2008,24(2):60-67.
[16]王苏岩,韩克双.纤维增强复合材料(FRP)加固混凝土柱性能研究进展[J].地震工程与工程振动,2004,24(1):97-104.
[17]Hosseini A,Khaloo AR,Fadaee S.Seismic performance of high-strength concrete square columns confined with carbon fiber reinforced polymers[J].Canadian Journal of Civil Engineering,2005,32:569-578.
[18]Youm K S,Lee HE,Choi S.Seismic performance of repaired RC columns[J].Magazine of Concrete Research,2006,58(5):267-276.
[19]Chang S Y,Li YF,Loh C H.Experimental study of seismic behaviors of as-built and carbon fiber reinforced plastics repaired reinforced concretebridge columns[J].Journal of Bridge Engineering,ASCE,2004,9(4):391-402.
[20]Cheng C T,Yang J C,Yeh Y K,et al.Seismic performance of repaired hollow-bridge piers[J].Construction and Building Materials,2003,17(5):339-351.
[21]Cheng C T,Yeh Y K,Mo Y L.Flexural repair of hollow rectangular bridge columns failed due to earthquake-type loading[J],Materials andStructures,2004,37(10):717-723
[22]Amir M,Mohsen S,Michel S,et al.Effect of column parameters on FRP-confined concrete[J].Journal of Composites for Construction,ASCE,1998,2(4):175-185.
[23]Amir M,Mohsen S,Thomas B.Slenderness limit for hybrid FRP-concrete columns[J].Journal of Composites for Construction,ASCE,2001,5(1):26-34.
[24]潘景龙,王雨光,来文汇.混凝土柱截面形状对纤维包裹加固效果的影响[J].工业建筑,2001,31(6):17-19.
[25]Teng J G,LamL.Compressive behavior of carbon fiber reinforced polymer-confined concrete in elliptical columns[J].Journal of Structural En-gineering,ASCE,2002,128(12):1535-1543.
[26]Saiidi M S,Sanders D H,Gordaninejad F,et al.Seismic retrofit of non-prismatic RC bridge columns with fibrous composite[C]//Proc.of12WCEEI.Paper No.0143,Auckkland,NewZealand,Jan.,2000.
[27]CECS 146:2003,碳纤维片材加固混凝土结构技术规程[S].北京:中国建筑工业出版社,2003.
[28]高献,陶忠,杨有福,等.大轴压比下FRP约束混凝土柱滞回性能试验研究[J].工业建筑,2005,35(9):11-14.
[2]Kawashima K.Seismic performance of RC bridge piers in Japan:an evaluation after the 1995 Hyogo-ken nanbu earthquake[J].Progress in Struc-tural Engineering and Materials,2000,2(1):82-91.
[3]Yao TH,Chung C F.Seismic effect on highway bridges in Chi-Chi earthquake[J].Journal of Performance of Constructed Facilities,ASCE,2004,18(1):47-53.
[4]孙治国,王东升,郭迅,等.汶川大地震绵竹市回澜立交桥震害调查[J].地震工程与工程振动,2009,29(4):132-138.
[5]Saadatmanesh H,Ehsani MR,Jin L.Repair of earthquake-damaged RC columns with FRP wraps[J].ACI Structural Journal,1997,94(2):206-214.
[6]Fukuyama k,Higashibata Y,Miyauchi Y.Studies on repair and strengthening methods of damaged reinforced concrete columns[J].Cement&Concrete Composites,2000,22(1):81-88.
[7]Lacobucci R D,Sheikh S A,Bayrak O.Retrofit of square concrete columns with carbon fiber-reinforced polymer for seismic Resistance[J].ACIStructural Journal,2003,100(6):785-794.
[8]Si B J,Sun Z G,Ai Q H,et al.Rapid repair of severely earthquake-damaged bridge piers[C].The 8th International Symposium on Fiber Rein-forced Polymer Reinforcement for Concrete Structures.Greece,2007,16-18.
[9]Seible F,Priestley MJ N,Hegemier G A,et al.Seismic retrofit of RC columns with continuous carbon fiber jackets[J].Journal of Compositesfor Constructions,ASCE,1997,1(2):52-62.
[10]普瑞斯特雷MJ N,塞勃勒F,卡尔维G M.桥梁抗震设计与加固[M].袁万城,胡勃,崔飞,等译.北京:人民交通出版社,1999:181-182.
[11]Saadatmanesh H,Ehsani MR,Li MW.Strength and ductility of concrete columns externally reinforced with fiber composite straps[J].ACIStructural Journal,1994,91(4):434-447.
[12]戴庆星,张征文.CFRP加固钢筋混凝土螺旋箍筋柱极限承载力分析[J].公路交通科技,2003,20(4):57-58.
[13]滕锦光,陈建飞,史密斯S T,等.FRP加固混凝土结构[M].李荣,滕锦光,顾磊译.北京:中国建筑工业出版社,2005.
[14]Pantelides C P,Yan Z H.Confinement model of concrete with externally bonded FRP jackets or posttensioned FRP shells[J].Journal of Struc-tural Engineering,ASCE,2007,133(9):1288-1296.
[15]顾冬生,吴刚,吴智深,等.FRP加固钢筋混凝土圆柱破坏模式及纤维应变特性研究[J].世界地震工程,2008,24(2):60-67.
[16]王苏岩,韩克双.纤维增强复合材料(FRP)加固混凝土柱性能研究进展[J].地震工程与工程振动,2004,24(1):97-104.
[17]Hosseini A,Khaloo AR,Fadaee S.Seismic performance of high-strength concrete square columns confined with carbon fiber reinforced polymers[J].Canadian Journal of Civil Engineering,2005,32:569-578.
[18]Youm K S,Lee HE,Choi S.Seismic performance of repaired RC columns[J].Magazine of Concrete Research,2006,58(5):267-276.
[19]Chang S Y,Li YF,Loh C H.Experimental study of seismic behaviors of as-built and carbon fiber reinforced plastics repaired reinforced concretebridge columns[J].Journal of Bridge Engineering,ASCE,2004,9(4):391-402.
[20]Cheng C T,Yang J C,Yeh Y K,et al.Seismic performance of repaired hollow-bridge piers[J].Construction and Building Materials,2003,17(5):339-351.
[21]Cheng C T,Yeh Y K,Mo Y L.Flexural repair of hollow rectangular bridge columns failed due to earthquake-type loading[J],Materials andStructures,2004,37(10):717-723
[22]Amir M,Mohsen S,Michel S,et al.Effect of column parameters on FRP-confined concrete[J].Journal of Composites for Construction,ASCE,1998,2(4):175-185.
[23]Amir M,Mohsen S,Thomas B.Slenderness limit for hybrid FRP-concrete columns[J].Journal of Composites for Construction,ASCE,2001,5(1):26-34.
[24]潘景龙,王雨光,来文汇.混凝土柱截面形状对纤维包裹加固效果的影响[J].工业建筑,2001,31(6):17-19.
[25]Teng J G,LamL.Compressive behavior of carbon fiber reinforced polymer-confined concrete in elliptical columns[J].Journal of Structural En-gineering,ASCE,2002,128(12):1535-1543.
[26]Saiidi M S,Sanders D H,Gordaninejad F,et al.Seismic retrofit of non-prismatic RC bridge columns with fibrous composite[C]//Proc.of12WCEEI.Paper No.0143,Auckkland,NewZealand,Jan.,2000.
[27]CECS 146:2003,碳纤维片材加固混凝土结构技术规程[S].北京:中国建筑工业出版社,2003.
[28]高献,陶忠,杨有福,等.大轴压比下FRP约束混凝土柱滞回性能试验研究[J].工业建筑,2005,35(9):11-14.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心