[1] Wang Wenwei, Li Guo,. Experimental study and calculation of flexural capacityof RC beams strengthened with GFRP sheets [J]. Journal of Southeast University (English Edition), 2004, 20 (2): 229-234. [doi:10.3969/j.issn.1003-7985.2004.02.022]

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Experimental study and calculation of flexural capacityof RC beams strengthened with GFRP sheets()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

20

Issue:

2004 2

Page:

229-234

Research Field:

Materials Sciences and Engineering

Publishing date:

2004-06-30

Info

Title:

Experimental study and calculation of flexural capacityof RC beams strengthened with GFRP sheets

Author(s):

Wang Wenwei¹;  Li Guo²

¹College of Transportation, Southeast University, Nanjing 210096, China
²Department of Civil Engineering, Dalian University of Technology, Dalian 116023, China

Keywords:

glass fiber reinforced polymer(GFRP)sheets;  strengthen;  reinforced concrete(RC)beam;  experimental study;  flexural capacity

PACS:

TU528.043

DOI:

10.3969/j.issn.1003-7985.2004.02.022

Abstract:

Nine reinforced concrete(RC)beams strengthened with glass fiber reinforced polymer(GFRP)sheets and three control beams were tested. Four parameters considered in this experimental program included the concrete strength, the reinforcement ratio, the number of GFRP sheets, and the shear span ratio. It is shown that the application of GFRP sheets can increase the ultimate flexural capacity. The effect of the concrete strength, the reinforcement ratio and the number of GFRP sheets on load capacity is obvious. The shear span ratio can affect the failure mode of RC beams strengthened with GFRP sheets. A theoretical model for flexural behavior of the strengthened RC beam is also developed.

References:

[1] Brown V L, Bartholomew C L. FRP reinforcing bars in reinforced concrete members [J]. ACI Materials Journal, 1993, 90(1): 34-39.
[2] Saadatmanesh H, Ehsani M. RC beams strengthened with GFRP plates [J]. Journal of Structural Engineering, 1990, 117(11): 3417-3455.
[3] Saadatmanesh Hamid. Fiber composites for new and existing structures [J]. ACI Structural Journal, 1994, 91(3): 346-354.
[4] Yue Q R, Chen X B, Mu H Y. New technology of carbon reinforced plastics on strengthening & repairing concrete structures [J]. Industrial Construction, 1998, 28(11): 1-5.(in Chinese)
[5] Wu G, Lu Z T. Shear design method of concrete beams strengthened with carbon fiber reinforced polymer sheet [J]. Industrial Construction, 2000, 30(10): 35-38.(in Chinese)
[6] China Concrete Institute. GB 50010—2002 code for design of concrete structures [S]. Beijing: China Construction Industry Press, 2002.(in Chinese)
[7] Arduini M, Tommaso A D, Nanni A. Brittle failure in FRP plate and sheet bonded beams [J]. ACI Structural Journal, 1997, 94(4): 363-370.
[8] Allen R C, Jerome D M, Tedesco J W, et al. Strengthening of reinforced concrete beams with externally bonded composite laminates [J]. ACI Structural Journal, 1999, 96(2): 212-220.

Memo

Memo:

Biography: Wang Wenwei(1971—), male, doctor, lecturer, wenweiw.student@sina.com.

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