Discussion on Formula for the Flexural Capacity of Concrete Beams Strengthened with FRP

2015 ◽  
Vol 1094 ◽  
pp. 278-281
Author(s):  
Xu Jun Chen ◽  
Qiao Yang ◽  
Jun Guo
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structure ◽  
Concrete Beams ◽  
Fiber Reinforced ◽  
Reinforced Concrete Structure ◽  
Flexural Capacity ◽  
Fiber Reinforced Plastic ◽  
Reinforced Plastic ◽  
Tension Strength

The flexural capacity formula of reinforced concrete structure strengthened with FRP in Code for Design of strengthening concrete structure(GB 50367—2013) was introduced, and the rationality of the formula was analyzed. The results showed that the concrete compression height is independent of the tension strength of Fiber Reinforced Plastic (FRP), and the concrete compression height decreases with the increase of the tension strain of FRP, which is contrary to fact. The flexural capacity formula of reinforced concrete structure strengthened with FRP in Code for Design of strengthening concrete structure (GB 50367—2013) is worth discussing.

Cracking behaviour of concrete beams reinforced with fiber reinforced plastic rebars

1996 ◽  
Vol 23 (6) ◽  
pp. 1172-1179 ◽  
Author(s):  
R. Masmoudi ◽  
B. Benmokrane ◽  
O. Chaallal
Keyword(s):  
Reinforced Concrete ◽  
Crack Width ◽  
Concrete Beams ◽  
Reinforcement Ratio ◽  
Test Results ◽  
Fiber Reinforced ◽  
Fiber Reinforced Plastic ◽  
Concrete Members ◽  
Reinforced Plastic ◽  
Cracking Pattern

This paper presents the results of an experimental investigation on the cracking behaviour of concrete beams reinforced with fiber reinforced plastic rebars. The effects of reinforcement ratio on the cracking pattern, crack spacing, cracking moment, and crack width are investigated. The test results indicate that the reinforcement ratio has no meaningful effect on the cracking moment, which can be calculated as recommended by the ACI code. Also, the use of the equations adopted by ACI and the European codes for the prediction of crack width of conventionally reinforced concrete members is investigated and due modifications are made. Both relationships show good correlation with the test results; and the prediction of crack width of concrete beams reinforced with these two types of fiber reinforced plastic rebars is now possible. Key words: beam, cracking behaviour, cracking moment, crack width, fiber reinforced plastic, flexure, rebars, reinforced concrete, reinforcement ratio.

The Concrete Structure Strengthen Technology and Engineering Application

2011 ◽  
Vol 194-196 ◽  
pp. 835-839
Author(s):  
Jun Hong Li
Keyword(s):  
Reinforced Concrete ◽  
Cross Section ◽  
Concrete Structure ◽  
Engineering Application ◽  
Steel Reinforcement ◽  
Reinforced Concrete Structure ◽  
Fiber Reinforced Plastic ◽  
Advantages And Disadvantages ◽  
Reinforced Plastic ◽  
Concrete Reinforcement

In this paper, the background of concrete structure strengthen is described, and several common methods of strengthening concrete structure in current construction are introduced. Also the advantages and disadvantages application of reinforcement methods are discussed. so as to valuable experiences for strengthening reinforced concrete structures are accumulate. Both the advantages and disadvantages of the reinforcement methods are described in detail. For example, the increasing cross-section reinforcement method, the replacing concrete reinforcement method, the bonding steel reinforcement method, the pasting steel reinforcement method, the pasting fiber reinforced plastic reinforcement method and so on. And so many accumulated experiences are provided for later strengthening reinforced concrete structure, and the process of strengthening concrete structure is improved.

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