Effect of length of carbon fiber sheet on the stress field of the reinforced concrete three-point bending specimen with a V notch

2002 ◽  
Author(s):  
Peiyan Huang ◽  
Ming Jin ◽  
Lifeng Luo ◽  
Shengmin Hu ◽  
Guisen Zhang
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Stress Field ◽  
Three Point Bending ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

Analysis of Bending Stiffness of Reinforced Concrete Beams Strengthened with Carbon Fiber Sheet

2012 ◽  
Vol 204-208 ◽  
pp. 2887-2890
Author(s):  
Yan Han ◽  
Hong Bo Liu ◽  
Tao Guo
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Concrete Beams ◽  
Bending Stiffness ◽  
Reinforcement Ratio ◽  
Reinforced Concrete Beams ◽  
Fiber Layer ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

The stiffness of reinforced concrete simple beams strengthened with carbon fiber sheets is studied in this paper. The calculation formulas of it are discussed, for steel yielding and not yielding. The stiffness increases with the number of carbon fiber layer or reinforcement ratio increases.

Ultimate Flexural Bearing Capacity Research Based on Carbon Fiber Sheet to Reinforce Rough Sleeper Beam

2012 ◽  
Vol 226-228 ◽  
pp. 1766-1770
Author(s):  
Zhong Long Li ◽  
Hong Lin Wu ◽  
Zhen Yu Liu ◽  
De Jian Xu ◽  
Hong Jiang Gu ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Bearing Capacity ◽  
Concrete Beam ◽  
Reinforced Concrete Beam ◽  
Construction Technology ◽  
Flexural Bearing Capacity ◽  
Fiber Sheet ◽  
Preliminary Study ◽  
Carbon Fiber Sheet

In this paper, it makes a preliminary study on the material of carbon fiber sheet to reinforce rough sleeper beam in order to enhance the magnitude of ultimate flexural bearing capacity. Considering the actual construction technology and environment, four reinforced concrete sleeper beams are used to experiment simulation to study the influence of carbon fiber sheet to ultimate flexural bearing capacity of reinforced concrete structures. Experiment results show that pasting two layers of carbon fiber sheet under reinforced concrete beam can have about a 25% increase in flexural bearing capacity.

Flexural Capacity of Reinforced Concrete Member Retrofitted with Carbon Fiber Sheet

2007 ◽  
Vol 348-349 ◽  
pp. 973-976
Author(s):  
Soo Yeon Seo ◽  
Kyong Tae Kim ◽  
Hyun Do Yun ◽  
Ki Bong Choi ◽  
Seung Joe Yoon
Keyword(s):  
Reinforced Concrete ◽  
Carbon Fiber ◽  
Flexural Capacity ◽  
Layer Number ◽  
Structural Capacity ◽  
Reinforced Concrete Member ◽  
Test Parameters ◽  
Bonding Ratio ◽  
Fiber Sheet ◽  
Carbon Fiber Sheet

The purpose of this paper is to evaluate the structural capacity of Reinforced Concrete (RC) member retrofitted with Carbon Fiber Sheet (CFS) in order to improve the flexural strength. Eleven RC beam specimens are made and retrofitted with CFS by following the test objective. The main factor in selecting the test parameters is to verify the bond capacity of CFS. Therefore, parameters such as layer number of carbon fiber sheet, strengthening method, bonding ratio (100%-80%), and epoxy type are considered in the test. From the test, all specimens showed little bit different behavior each other. Especially, the flexural capacity was not linearly increased even if the layer number of CFS increased when it was more than two. Also the specimens with the low bonding ratio exhibited low strength as well as premature bond failure on comparing to other specimens.

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