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内嵌CFRP筋加固混凝土梁桥界面特性研究的宽缺口梁法

, PP. 58-65

Keywords: 桥梁工程,混凝土梁桥,宽缺口梁法,界面特性,内嵌加固,CFRP筋

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Abstract:

?为了使CFRP筋加固混凝土梁桥界面特性研究更精确,针对混凝土梁作为受弯构件受力时,不考虑混凝土抗拉强度的基本假定,共浇筑19根钢筋混凝土梁,研究和对比CFRP筋加固宽缺口混凝土梁、CFRP筋加固不带缺口的混凝土梁和未加固的对比混凝土梁的力学特性、CFRP筋-混凝土界面的滑移特性及粘结剪力大小。研究结果表明:CFRP筋对宽缺口混凝土梁的加固效果和对普通混凝土梁的加固效果相近;可以用宽缺口梁来研究CFRP筋-混凝土界面上的粘结剪应力及滑移特性,CFRP筋-混凝土界面滑移和应变易测,外露的CFRP筋受力明确;回归得到的CFRP筋-混凝土界面的平均剪应力与界面剥离承载力的表达式简洁,可用于工程实践。

References

[1]  曾宪桃,任振华,赵 晋,等.表层内嵌桁架螺旋肋筋加固混凝土梁抗弯试验研究[J].土木工程学报,2010,43(1):64-69. ZENG Xian-tao,REN Zhen-hua,ZHAO Jin,et al.Bending Experiment of RC Beams Strengthened with Near-surface Truss Helical Rib Rebar[J].China Civil Engineering Journal,2010,43(1):64-69.
[2]  任振华,曾宪桃,刘汉龙,等.复合内嵌筋材加固混凝土梁破坏模式分析[J].防灾减灾工程学报,2012,32(6):657-664. REN Zhen-hua,ZENG Xian-tao,LIU Han-long,et al.The Failure Modes of Reinforced Concrete Beams Strengthened with Multiple Near-surface Mounted Bars[J].Journal of Disaster Prevention and Mitigation Engineering,2012,32(6):657-664.
[3]  任振华.碳纤维增强材料加固π型混凝土梁应变协调关系及界面特性研究[D].南京:河海大学,2012. REN Zhen-hua.Research on Relationship of Strain Coordination and Interface Properties for π RC Beam Strengthened with Carbon Fiber Reinforced Plastic[D].Nanjing:Hohai University,2012.
[4]  REN Zhen-hua,ZENG Xian-tao,LIU Han-long.Research on RC Beams Strengthened with Near-surface Mounted Helical Rib Bar[J].Applied Mechanics and Materials,2011,90-93:1757-1760.
[5]  任振华.内嵌CFRP筋-预应力螺旋肋钢筋复合加固混凝土梁抗弯试验研究[D].焦作:河南理工大学,2009. REN Zhen-hua.The Flexural Experiment of RC Beams Strengthened with Near-surface Mounted Carbon Fiber Reinforced Plastic-pre-stressed Helical Rib Rebar[D].Jiaozuo:Henan Polytechnic University,2009.
[6]  王 勃,付德成,杨艳敏,等.FRP筋与混凝土粘结破坏性能试验[J].混凝土,2010(3):26-32. WANG Bo,FU De-cheng,YANG Yan-min,et al.Experimental Study on Bond Failure Between FRP Bars and Concrete[J].Concrete,2010(3):26-32.
[7]  杨 勇,谢标云,聂建国,等.表层嵌贴碳纤维筋加固钢筋混凝土梁受力性能试验研究[J].工程力学,2009,26(3):106-112. YANG Yong,XIE Biao-yun,NIE Jian-guo,et al. Experiment Study on Mechanical Behavior of Reinforced Concrete Beams Strengthened with Near Surface Mounted (NSM) CFRP Rods[J].Engineering Mechanics,2009,26(3):106-112.
[8]  李 荣,滕锦光,岳清瑞.嵌入式CFRP板条-混凝土界面粘结性能的试验研究[J].工业建筑,2005,35(8):31-34. LI Rong,TENG Jin-guang,YUE Qing-rui.Experimental Study on Bond Behavior of NSM CFRP Strips-Concrete Interface[J].Industrial Construction,2005,35(8):31-34.
[9]  董振华,杜修力,韩 强,等.FRP加固钢筋混凝土墩柱抗震性能研究综述[J].建筑科学与工程学报,2013,30(2):55-64. DONG Zhen-hua,DU Xiu-li,HAN Qiang,et al.Review of Research on Seismic Performance of RC Columns Strengthened with FRP[J].Journal of Architecture and Civil Engineering,2013,30(2):55-64.
[10]  郝海霞,张建仁,高 勇,等.表层嵌贴CFRP-混凝土界面粘结性能简化分析[J].中国公路学报,2015,28(4):52-59. HAO Hai-xia,ZHANG Jian-ren,GAO Yong,et al.Simplified Analysis on Bond Performance of Near-surface Mounted CFRP-concrete Interface[J].China Journal of Highway and Transport,2015,28(4):52-59.
[11]  吴以莉,姚 谏,朱晓旭.内嵌CFRP加固混凝土梁粘结性能试验分析[J].建筑技术,2010,41(5):454-456. WU Yi-li,YAO Jian,ZHU Xiao-xu.Analysis on Bonding Performance Test of Mounted CFRP Strengthened Concrete Beam[J].Architecture Technology,2010,41(5):454-456.
[12]  任振华,曾宪桃.碳纤维材料加固π型混凝土梁抗弯试验研究[J].自然灾害学报,2013,22(3):221-228. REN Zhen-hua,ZENG Xian-tao.Text Research on Bending Capacity of π-type Concrete Beam Strengthened with Carbon Fiber Reinforced Plastic[J].Journal of Natural Disasters,2013,22(3):221-228.
[13]  郭樟根,孙伟民,闵 珍.FRP与混凝土界面粘结性能的试验研究[J].南京工业大学学报,2006,28(6):37-42. GUO Zhang-gen,SUN Wei-min,MIN Zhen.Experimental Study on Bond Behavior Between FRP-concrete Interface[J].Journal of Nanjing University of Technology,2006,28(6):37-42.
[14]  郭樟根,孙伟民,曹双寅.FRP与混凝土界面黏结-滑移本构关系的试验研究[J].土木工程学报,2007,40(3):1-5. GUO Zhang-gen,SUN Wei-min,CAO Shuang-yin.Experimental Study on Bond-slip Behavior Between FRP and Concrete[J].China Civil Engineering Journal,2007,40(3):1-5.
[15]  朱晓玲.CFRP-混凝土界面粘结性能试验研究[D].长沙:中南大学,2008. ZHU Xiao-ling.Experimental Research on the Bond Performance of CFRP-concrete Interface[D].Changsha:Central South University,2008.
[16]  任振华,曾宪桃,熊山铭,等.外贴CFRP板加固混凝土梁桥界面特性研究的宽缺口梁法[J].中国公路学报,2015,28(1):71-79. REN Zhen-hua,ZENG Xian-tao,XIONG Shan-ming,et al.Interface Properties of Concrete Beam Bridges Strengthened with Externally Bonded CFRP Plate Using Wide-notch Concrete Beam Model[J].China Journal of Highway and Transport,2015,28(1):71-79.
[17]  张海霞,朱浮声,孙 丽,等.FRP筋与混凝土粘结滑移试验研究[J].沈阳建筑大学学报:自然科学版,2008,24(6):989-992. ZHANG Hai-xia,ZHU Fu-sheng,Sun Li,et al.Experimental Study on Bond-slip Behavior Between FRP Bars and Concrete[J].Journal of Shenyang Jianzhu University:Natural Science,2008,24(6):989-992.

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