Strain model for discretely FRP confined concrete based on energy balance principle

2021 ◽  
Vol 241 ◽  
pp. 112489
Author(s):  
Anh Duc Mai ◽  
M. Neaz Sheikh ◽  
Muhammad N.S. Hadi
Keyword(s):  
Energy Balance ◽  
Confined Concrete ◽  
Balance Principle ◽  
Strain Model

Refinement of Lam and Teng's Design-oriented Stress-strain Model for FRP-confined Concrete

2006 ◽  
Vol 92 (1) ◽  
pp. 68-75
Author(s):  
Jin-Guang Teng ◽  
Tao Jiang ◽  
Lik Lam ◽  
Yaozhi Luo
Keyword(s):  
Confined Concrete ◽  
Stress Strain ◽  
Strain Model

Study on Stress-Strain Relationship of FRP-Confined Concrete Filled Steel Tubes

2010 ◽  
Vol 163-167 ◽  
pp. 3826-3829
Author(s):  
Feng Yu ◽  
Ping Wu
Keyword(s):  
Main Parameter ◽  
Steel Tube ◽  
Confined Concrete ◽  
Stress Strain ◽  
Steel Tubes ◽  
Concrete Filled Steel Tube ◽  
Strain Relationship ◽  
Relationship Of ◽  
Concrete Filled Steel Tubes ◽  
Strain Model

FRP-confined concrete filled steel tube may fully use the character of FRP-confined concrete and concrete filled steel tube. Based on the analysis of existing experimental data, the formula of ultimate bearing capacity of FRP-confined concrete filled steel tube is proposed. The mechanical behavior of FRP-confined concrete filled steel tube is mainly related to the equivalent confinement effect coefficient before the rupture of FRP. Based on the static equilibrium condition, the equivalent conversion section is adopted; taking as main parameter, the simplified stress-strain model of FRP-confined concrete filled steel tube is established. The predictions of the model agree well with test data.

A stress-path dependent stress-strain model for FRP-confined concrete

2020 ◽  
Vol 203 ◽  
pp. 109824 ◽  
Author(s):  
M.H. Lai ◽  
Y.W. Liang ◽  
Q. Wang ◽  
F.M. Ren ◽  
M.T. Chen ◽  
...  
Keyword(s):  
Stress Path ◽  
Confined Concrete ◽  
Stress Strain ◽  
Path Dependent ◽  
Strain Model

Experimental Study on Effects of Temperature on Characteristic Parameters of CFRP-Confined Concrete Prisms

2010 ◽  
Vol 150-151 ◽  
pp. 1400-1404
Author(s):  
Yan Zhang ◽  
Zhi Sheng Xu
Keyword(s):  
Experimental Study ◽  
High Temperature ◽  
Confined Concrete ◽  
Characteristic Parameters ◽  
Concrete Member ◽  
Concrete Prism ◽  
Cfrp Strip ◽  
Effects Of Temperature ◽  
Strain Model ◽  
Strength And Ductility

The stress-strain model of concrete prism after high temperature confined by CFRP is scarce, which gives great trouble to the study of mechanical properties of compressed concrete member after fire strengthened by CFRP. This paper presents the results of an experimental study on effects of temperature on characteristic parameters of CFRP-wrapped concrete prisms at elevated temperature. Experimental results indicate that strength and ductility of CFRP-confined concrete prism after high temperature have a large certain extent increase as the result of the action of CFRP. The results reveal that transitional stress, transitional strain, ultimate stress and ultimate strain are related to width of CFRP strip, the greatest temperature, corner radius and layers of CFRP. This has established reliable foundation for the accurate calculation of concrete structures strengthened by CFRP after high temperature or post fire.

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