STUDY ON PRESTRESS LOSS OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP PLATES

Deng Lang-ni; Zhang Peng; Yang Fan; Kang Kan

doi:10.13204/j.gyjz201209016

Volume 42 Issue 9

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(9): 71-74

MOU Kun-ting, WEI Yang, WANG Gao-fei, DONG Feng-hui, ZHENG Kai-qi. Mechanical Properties of Double-Tube Seawater and Sea Sand Concrete Columns with Built-in CFRP Tubes Under Axial Compression[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(9): 1-9. doi: 10.13204/j.gyjzG22030410

Citation:

Deng Lang-ni, Zhang Peng, Yang Fan, Kang Kan. STUDY ON PRESTRESS LOSS OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP PLATES[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(9): 71-74. doi: 10.13204/j.gyjz201209016

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STUDY ON PRESTRESS LOSS OF CONCRETE STRUCTURE STRENGTHENED WITH PRESTRESSED CFRP PLATES

doi: 10.13204/j.gyjz201209016

1.
1. Department of Civil Engineering and Architecture,Guangxi University of Technology,Liuzhou 545006,China;
2.
2. Liuzhou OVM Machinery Co.Ltd,Liuzhou 545005,China

Received Date: 2012-04-10
Publish Date: 2012-09-20

Abstract

Abstract

Analysis of prestress loss of concrete structure strengthened with prestressed CFRP plates in tension and using stage is one of the key problems of prestressed CFRP plate technology.Based on the analysis and summary for the existing reinforcement technology of prestressed CFRP plates, using our current Code for Design of Concrete Structure for reference, separately calculate the prestress loss of CFRP plates used to strengthen concrete structures, and present the calculation method of every prestress loss.The estimated value for prestress loss of concrete structure strengthened with prestressed CFRP plates is suggested to be 10% ～ 15% tension control stress based on test．
- strengthen,
- carbon fiber reinforced polymer plates (CFRP plates),
- prestress loss

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References(8)

References

Quantrill R J， Hollaway L C.The Flexural Rehabilitation ofReinforced Concrete Beams by the Use of Prestressed AdvancedComposite Plates [J].composites Science and Technology，1998，58(8): 1259-1257.

[2] 王兴国，周朝阳，曾宪桃，等.外贴预应力CFRP 板加固混凝土梁抗弯试验研究[J].哈尔滨工业大学学报，2005，37 (3 ):351-354.

[3] 杨勇新，李庆伟，岳清瑞.预应力碳纤维布加固混凝土梁预应力损失试验研究[J].工业建筑，2006，36(4): 5-8.

[4] Nikolaos Plevris， Thanasis C Triantafillou.Time-DependentBehavior of RC Members Strengthened with FRP Laminates[J].Journal of Structural Engineering，1994，120(3): 1016-1041.

[5] 邓朗妮，陈华，张鹏.预应力CFRP 板加固混凝土梁正截面受弯承载力的计算方法研究[J].建筑科学，2009，25 (3): 74-77.

[6] 邓朗妮.预应力碳纤维板加固受弯构件试验研究及理论分析[D].南宁: 广西大学，2010.

[7] Wight R G， Green M F.Perstressed FRP Sheets forPoststrengthening Reinforced Concrete Beams [J].Journal ofComposites for Construction，2001(11): 214-220.

[8] 彭晖，尚守平，金勇俊，等.预应力碳纤维板加固受弯构件的试验研究[J].工程力学，2008，25(5): 142-151.

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