|Table of Contents|

Effect of Surface Preparation on Bearing Capacity of RC Beams Strengthened with FRP(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2011年02期
Page:
75-78,126
Research Field:
Publishing date:
2011-06-20

Info

Title:
Effect of Surface Preparation on Bearing Capacity of RC Beams Strengthened with FRP
Author(s):
DONG Hai;  HE Hua-nan;  WU Zhi-min;  SHI Chang-wen
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
Keywords:
surface preparation;  fiber reinforced polymer;  reinforced concrete beam;  bearing capacity;  ultimate moment;  artificial chiseling
PACS:
TU337.4
DOI:
-
Abstract:
Using a total of 5 group specimens, through two variables of span of beam and reinforcement ratio, the effect of the artificial chiseling on ultimate moment of reinforced concrete(RC)beams strengthened with fiber reinforced polymer(FRP)was investigated. The results show that the ultimate moment of an FRP strenghened beam with artificial chiseling is lower than that of an FRP strenghened beam with wheel grinding. Besides, as the span of beam increases, the difference values increase between the ultimate moment of a beam with artificial chiseling and that of a beam with wheel grinding; and the difference values decrease as the reinforcement ratios increase.

References:

[1] JEFFRIES J M.Bond Behavior of Fiber Reinforced Polymer Laminates to Concrete Subjected to Varied Surface Preparation[D].Rolla:University of Missouri,2004.
[2]YALIM B,KALAYCI A S,MIRMIRAN A.Performance of FRP-strengthened RC Beams with Different Concrete Surface Profiles[J].Journal of Composites for Construction,2008,12(6):626-634.
[3] CHAJES M J,FINCH W W,JANUSZKA T F,et al.Bond and Force Transfer of Composite Material Plates Bonded to Concrete [J].ACI Structural Journal,1996,93(2):208-217.
[4]MITSUI M,FUKUZAWA K,NUMAO T,et al.Relations Between Surface Roughness Indexes and Bond Strength Between CFRP Sheets and Concrete[J].Journal of the Society of Material Science,2000,49(6):685-691.
[5]TOUTNAJI H,ORTIZ G.The Effect of Surface Preparation on the Bond Interface Between FRP Sheets and Concrete Members [J].Composite Structures,2001,53(4):457-462.
[6]WU Y F,HUAN G Y.Hybrid Bonding of FRP to Reinforced Concrete Structures [J].Journal of Composites for Construction,2008,12(3):266-273.
[7]胡程鹤,吴智敏,宿 莹,等.FRP 复合锚固技术试验研究[J].防震减灾工程学报,2010,30(3):309-314. HU Cheng-he,WU Zhi-min,SU Ying,et al.Experimental Study of Hybrid FRP Anchorage Technique[J].Journal of Disaster Prevention and Mitigation Engineering,2010,30(3):309-314.
[8]宿 莹,吴智敏,胡程鹤,等.CFRP 布加固钢筋混凝土梁的新型复合粘结技术[J].建筑科学与工程学报,2009,26(4):66-72. SU Ying,WU Zhi-min,HU Cheng-he,et al.New Hybrid Bonding Technique of Reinforced Concrete Beams Strengthened with CFRP Sheet[J].Journal of Architecture and Civil Engineering,2009,26(4):66-72.
[9]蒋田勇,方 志.CFRP筋在活性粉末混凝土中的粘结应力分布[J].中国公路学报,2010,23(1):49-57. JIANG Tian-yong,FANG Zhi.Bond Stress Distribution of CFRP Tendon in Reactive Powder Concrete[J].China Journal of Highway and Transport,2010,23(1):49-57.
[10]陈小英,李唐宁,黄 音,等.CFRP体外预应力加固钢筋混凝土T型梁试验[J].中国公路学报,2010,23(2):56-63. CHEN Xiao-ying,LI Tang-ning,HUANG Yin,et al.Experiment on Reinforced Concrete T-beams Strength-ened with External Prestressed CFRP Sheets[J].China Journal of Highway and Transport,2010,23(2):56-63.
[11]任 伟,贺拴海,袁旭斌.粘贴纤维布、钢板加固钢筋混凝土T梁试验研究[J].西安建筑科技大学学报:自然科学版,2008,40(3):323-330. REN Wei,HE Shuan-hai, YUAN Xu-bin.Test Study of Strengthening RC T-beam with Bonded FRP and Steel Plates[J].Journal of Xi'an University of Architecture & Technology:Natural Science Edition,2008,40(3):323-330.

Memo

Memo:
-
Last Update: 2011-06-20