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预应力碳纤维条带加固混凝土圆墩抗震性能试验

, PP. 57-66

Keywords: 桥梁工程,钢筋混凝土圆墩,抗震性能试验,预应力碳纤维条带,加固

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Abstract:

?针对地震灾害中桥墩柱的破坏形态,考虑轴压比变化、预应力大小、纤维布层数和加载顺序等因素的影响,对9根采用与未采用预应力碳纤维条带加固的钢筋混凝土圆形墩柱进行了低周反复荷载试验研究。通过各试件主要破坏形态和滞回曲线的对比,分析了各因素对承载力、延性性能、滞回特性、耗能能力等重要抗震性能指标的影响。结果表明:采用预应力碳纤维条带加固后,柱的承载力、延性性能、耗能能力均有较大幅度提升;预应力碳纤维条带提供的主动横向约束力能有效抑制斜向剪切裂缝的开展,将圆墩柱的破坏形态由剪切破坏转变为延性较好的弯曲破坏;先施加轴力后进行预应力碳纤维条带加固所得的加固承载力低于后施加轴力的试件。

References

[1]  庄卫林,刘振宇,蒋劲松.汶川大地震公路桥梁震害分析及对策[J].岩石力学与工程学报,2009,28(7):1377-1387.
[2]  ZHUANG Wei-lin,LIU Zhen-yu,JIANG Jin-song.Earthquake-induced Damage Analysis of Highway Bridges in Wenchuan Earthquake and Countermeasures[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(7):1377-1387.
[3]  陆新征,马玉虎,唐代远,等.汶川地震典型RC框架结构抗倒塌加固效果分析[J].建筑科学与工程学报,2011,28(2):21-27.
[4]  ZHOU Chang-dong,HUANG Cheng-kui. Investigation on Seismic-resistance Behavior of Concrete Columns Strengthened with GFRP[J].Journal of Harbin Institute of Technology,2006,38(3):427-431.
[5]  ZHOU Chang-dong,LU Xi-lin,JIN Ye.Research on Mechanical Behavior of GFRP Bars in High Temperature[J].Journal of Architecture and Civil Engineering,2006,23(1):23-28.
[6]  王 伟,宋 坤,王大鹏.纤维加固混凝土圆截面短柱抗震性能试验研究[J].世界地震工程,2008,24(4):96-100.
[7]  WANG Wei,SONG Kun,WANG Da-peng.Experimental Investigation on Seismic Performance of CFRP Retrofited RC Short Columns with Circular Section[J].World Earthquake Engineering,2008,24(4):96-100.
[8]  周朝阳,黄 林,贺学军.粘贴预应力碳纤维布钢梁的放张效应[J].建筑科学与工程学报,2010,27(4):14-18.
[9]  ZHONG Long,ZHENG Shan-suo,WANG Bin,et al.Design Method of Strengthening Prestressed Concrete Crane Girder Using CFRP[J].Journal of Architecture and Civil Engineering,2007,24(2):54-58.
[10]  ZHANG Jian-wei,ZHANG Rui-yun,DU Xiu-li.Experiment of Relaxation Performance of AFRP Sheets[J].Journal of Architecture and Civil Engineering,2010,27(1):73-77.
[11]  SHEIKH S A.Performance of Concrete Structures Retrofitted with Fiber Reinforced Polymers[J].Engineering Structures,2002,24:869-879.
[12]  YAMAKAWA T,NASROLLAHZADEH NESHELI K,SATOH H.Seismic or Emergency Retrofit of RC Short Columns by Use of Prestressed Aramid Fiber Belts as External Hoops[J].Journal of Structural and Construction Engineering,2001(550):135-141.
[13]  MEHDIZAD TALEIE S,MOGHADDAM H.Experimental and Analytical Investigation of Square RC Columns Retrofitted with Pre-stressed FRP Strips[C]//TRIANTAFILLOU T.The Eighth International Symposium on FRP Reinforcement for Concrete Structures.Patras:University of Patras,2007:1-10.
[14]  李忠献,许成祥,景 萌,等.碳纤维布加固钢筋混凝土短柱的抗震性能试验研究[J].建筑结构学报,2002,23(6):41-48.
[15]  LI Zhong-xian,XU Cheng-xiang,JING Meng,et al.Experimental Research on Seismic Behavior of Reinforced Concrete Short Columns Strengthened with Carbon Fiber Sheets[J].Journal of Building Structures,2002,23(6):41-48.
[16]  GUO Zi-xiong,ZHANG Jie,YANG Yong.Study on the Seismic Performance of RC Column Confined by Prestrssed Steel Plate Hoops[J].Journal of Harbin Institute of Technology,2006,38(1):140-144.
[17]  刘健新,赵国辉.“5·12”汶川地震典型桥梁震害分析[J].建筑科学与工程学报,2009,26(2):92-97.
[18]  LIU Jian-xin,ZHAO Guo-hui.Typical Bridge Damage Analysis in “5·12” Wenchuan Earthquake[J].Journal of Architecture and Civil Engineering,2009,26(2):92-97.
[19]  LU Xin-zheng,MA Yu-hu,TANG Dai-yuan,et al.Strengthening Effect Analysis of Seismic Collapse Resistance of Typical RC Frame Structures in Wenchuan Earthquake[J].Journal of Architecture and Civil Engineering,2011,28(2):21-27.
[20]  周长东,黄承逵.玻璃纤维聚合物加固混凝土柱抗震性能研究[J].哈尔滨工业大学学报,2006,38(3):427-431.
[21]  周长东,吕西林,金 叶.火灾高温下玻璃纤维筋的力学性能研究[J].建筑科学与工程学报,2006,23(1):23-28.
[22]  ZHOU Chao-yang,HUANG Lin,HE Xue-jun.Effect of Releasing Pretension for Steel Beams Bonded with Prestressed Carbon Fiber Sheet[J].Journal of Architecture and Civil Engineering,2010,27(4):14-18.
[23]  钟 龙,郑山锁,王 斌.采用碳纤维布加固预应力混凝土吊车梁的设计方法[J].建筑科学与工程学报,2007,24(2):54-58.
[24]  张建伟,张瑞云,杜修力.芳纶纤维布松弛性能试验[J].建筑科学与工程学报,2010,27(1):73-77.
[25]  XIAO Y,MA R.Seismic Retrofit of RC Circular Columns Using Prefabricated Composite Kacketing[J].Journal of Structural Engineering,1997,123(10):1357-1364.
[26]  NASROLLALAHZADEH NESHELI K,MEGURO K.Seismic Retrofitting of Eartherquake-damaged Concrete Columns by Lateral Pretensioning of FRP Belts[C]//EERI.Proceedings of the Eighth U.S.National Conference on Earthquake Engineering.San Francisco:EERI,2006:1-9.
[27]  郭子雄,张 杰,杨 勇.设置外包预应力钢板箍RC短柱抗震性能研究[J].哈尔滨工业大学学报,2006,38(1):140-144.

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