Stress–strain behavior of actively and passively confined concrete under cyclic axial load

2016 ◽  
Vol 149 ◽  
pp. 369-384 ◽  
Author(s):  
Pengda Li ◽  
Yu-Fei Wu
Keyword(s):  
Axial Load ◽  
Confined Concrete ◽  
Stress Strain ◽  
Strain Behavior

Observed Stress‐Strain Behavior of Confined Concrete

1988 ◽  
Vol 114 (8) ◽  
pp. 1827-1849 ◽  
Author(s):  
J. B. Mander ◽  
M. J. N. Priestley ◽  
R. Park
Keyword(s):  
Confined Concrete ◽  
Stress Strain ◽  
Strain Behavior

Discussion of “ Observed Stress‐Strain Behavior of Confined Concrete ” by J. B. Mander, M. J. N. Priestley, and R. Park (August, 1988, Vol. 114, No. 8)

1990 ◽  
Vol 116 (5) ◽  
pp. 1469-1469 ◽  
Author(s):  
Theodor Krauthammer ◽  
Gabriel Forcier ◽  
Lucio Palmieri ◽  
James Roth ◽  
Paul Bergson
Keyword(s):  
Confined Concrete ◽  
Stress Strain ◽  
Strain Behavior

scholarly journals The Influence of Steel Fiber on the Stress-Strain Behavior of Confined Concrete

2019 ◽  
Vol 2 (1) ◽  
pp. 46
Author(s):  
Widayat Amariansah ◽  
Rinda Karlinasari
Keyword(s):  
Peak Stress ◽  
Fiber Reinforced Concrete ◽  
Experimental Results ◽  
Confined Concrete ◽  
Stress Strain ◽  
Conventional Concrete ◽  
Strain Behavior ◽  
Increased Strength ◽  
Lateral Reinforcement ◽  
Strength And Ductility

This paper presents the result of an experimental study of confined concrete to evaluate the stress-strain behavior of fiber-reinforced concrete, which includes strength and ductility. The effectiveness of steel fibers in influencing the stress-strain behavior was also evaluated by creating a conventional concrete as a control specimen. The experimental results showed that there was a decrease in the value of the increased strength of confined concrete (f’cc/f’co) when the compressive strength of the concrete increased. Reducing the spaces of lateral reinforcement spaces will also increase the strength and ductility of confined concrete. The comparison of experimental results with various confinement models shows that there are substantial differences in the peak stress and the descending behavior of confined fiber concrete.

Prediction of stress–strain behavior of spirally confined concrete considering lateral expansion

2016 ◽  
Vol 102 ◽  
pp. 743-761 ◽  
Author(s):  
Young-Seek Kim ◽  
Sang-Woo Kim ◽  
Jung-Yoon Lee ◽  
Jae-Man Lee ◽  
Hyeong-Gook Kim ◽  
...  
Keyword(s):  
Confined Concrete ◽  
Lateral Expansion ◽  
Stress Strain ◽  
Strain Behavior

Effects of Corrosion on Stress–Strain Behavior of Confined Concrete

2021 ◽  
Vol 147 (7) ◽  
pp. 04021087
Author(s):  
Kaveh Andisheh ◽  
Allan Scott ◽  
Alessandro Palermo
Keyword(s):  
Confined Concrete ◽  
Stress Strain ◽  
Strain Behavior

scholarly journals Experimental Study on Concrete under Combined FRP–Steel Confinement

Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4467 ◽  
Author(s):  
Stefan Kaeseberg ◽  
Dennis Messerer ◽  
Klaus Holschemacher
Keyword(s):  
Experimental Study ◽  
Cross Sections ◽  
Limit State ◽  
Plain Concrete ◽  
Confined Concrete ◽  
Fiber Reinforced Polymers ◽  
Ultimate Limit State ◽  
Stress Strain ◽  
Effective Measure ◽  
Strain Behavior

The confinement of reinforced concrete (RC) compression members by fiber-reinforced polymers (FRPs) is an effective measure for the strengthening and retrofitting of existing structures. Thus far, extensive research on the stress–strain behavior and ultimate limit state design of FRP-confined concrete has been conducted, leading to various design models. However, these models are significantly different when compared to one another. In particular, the use of certain empirical efficiency and reduction factors results in various predictions of load-bearing behavior. Furthermore, most experimental programs solely focus on plain concrete specimens or demonstrate insufficient variation in the material properties. Therefore, this paper presents a comprehensive experimental study on plain and reinforced FRP-confined concrete, limited to circular cross sections. The program included 63 carbon FRP (CFRP)-confined plain and 60 CFRP-confined RC specimens with a variation in the geometries and in the applied materials. The analysis showed a significant influence of the compressive strength of the confined concrete on the confinement efficiency in the design methodology, as well as the importance of the proper determination of individual reduction values for different FRP composites. Finally, applicable experimental test results from the literature were included, enabling the development of a modified stress–strain and ultimate condition design model.

Novel fiber-reinforced polymer cross wrapping strengthening technique: A comparative study

2019 ◽  
Vol 23 (5) ◽  
pp. 979-996 ◽  
Author(s):  
Jun-Jie Zeng ◽  
Zhi-Jian Duan ◽  
Yong-Chang Guo ◽  
Zhi-Hong Xie ◽  
Li-Juan Li
Keyword(s):  
Comparative Study ◽  
Fiber Reinforced Polymer ◽  
Confined Concrete ◽  
The Novel ◽  
Fiber Reinforced ◽  
Stress Strain ◽  
Strain Behavior ◽  
Reinforced Polymer ◽  
Strengthening Technique ◽  
Strain Model

This article presents a comparative study on behavior of fiber-reinforced polymer–confined concrete in axially loaded circular columns strengthened using three different fiber-reinforced polymer partial wrapping strengthening schemes: the fiber-reinforced polymer ring wrapping, the fiber-reinforced polymer strip helical wrapping, and the novel fiber-reinforced polymer strip cross helical wrapping. The test results show that at an identical confinement ratio, the strength enhancement efficiency of the fiber-reinforced polymer strip helical wrapping is slightly weaker than those of the other two strengthening schemes, while the strain enhancement efficiency of the fiber-reinforced polymer strip helical wrapping is the strongest among the three strengthening schemes. An analysis-oriented stress–strain model is proposed for the confined concrete with fiber-reinforced polymer partial wrapping, and the comparisons show that the model is capable to provide satisfactory predictions on stress–strain behavior of confined concrete with fiber-reinforced polymer partial wrapping.

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