JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Simplified Model for the Stress-Strain Relationship of Confined Concrete
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Simplified Model for the Stress-Strain Relationship of Confined Concrete
Kim, Won-Woo; Mun, Ju-Hyun; Yang, Keun-Hyeok;
 
 Abstract
This study aims to develop a simple and rational stress-strain model of confined concrete in compression. Considering the confinement effect provided by the lateral reinforcement, the specified properties of confined concrete was formulated using regression analysis of 123 data sets as follows: modulus of elasticity, strength gain factor, strains at peak stress and 85% of the peak stress on the descending branch. Numerical and parametric analysis were carried out to derive equations for the key parameter determining the slopes of the ascending and descending branches of the stress-strain curves of confined concrete. The reliability of the developed model is examined using a normalized root mean-square error obtained from a comparison of model estimates with the experimental data. The proposed model gives superior accuracy and mathematical simplicity.
 Keywords
Confined concrete;Stress-strain relationship;Lateral reinforcement;Confinement effect;
 Language
Korean
 Cited by
1.
중심 압축하중을 받는 RC 기둥에서 V형 보조띠철근의 횡구속 효과,양근혁;

대한건축학회논문집:구조계, 2016. vol.32. 3, pp.11-18 crossref(new window)
 References
1.
ACI Committee 318 (2011), Building Code Requirements for Structural Concrete(ACI 318-11) and Commentary, American Concrete Institute

2.
ASTM C 469 (2012), Standard Test Method for Static Modulus of Elasticity and poisson's Ratio of Concrete in Compression, Annual Book of ASTM Standards, ASTM International

3.
Bae, S .G. (2005), Seismic Performance of Full-Scale Reinforced Concrete Columns, Doctor degree, The University of Texas at Austin

4.
Giuseppe, C. (2010), Giovanni, M., Compressive behavior of short high-strength concrete columns, Engineering Structures, 32

5.
Hong, K. N., Han, S. H., Yi, S. T. (2006), High-Strength Concrete Columns Confined by Low- Volumetric-ratio Lateral ties, Engineering Structures, 28

6.
Jeong, Cha, Kim (2010), Characteristics of the Stress-strain Relationship of Square Sectional Concrete Confined by Hoop Reinforcement with Cross-ties, Journal of Earthquake Engineering Society of Korea, 14(3), pp.39-48 crossref(new window)

7.
Lee (2001), An Experimental Study on the Strength and Ductility of High-Strength Concrete Columns Confined by Lateral Ties under Axial Loads, Doctor degree, Chung-Ang University

8.
Mander, J. B., Park, R., Priestley, M. J. N. (1988), Theoretical Stress-Strain Model for Confined Concrete, Journal of the Structural Engineering, 114(8)

9.
Moon (2011), A Stress-strain Model of High-strength Concrete Confined with High-strength Transverse Reinforcement, Master degree, Sungkyunkwan University,

10.
Park, R., Priestley, M. J. N., Gill, W. D. (1982), Ductility of Square-Confined Concrete Columns, Journal of the Structural Division, 108(4),

11.
Razvi, S., Sattcioglu, M. (1999), Confinement Model for High-Strength Concrete, Journal of Structural Engineering, 125(3)

12.
Sakino, K., Sun, Y. (1994), Stress-Strain Curve of Concrete Confined by Rectilinear Hoop, Journal of Structure and Construction Engineering, 461(8)

13.
Sheikh, S. A., Uzumeri, S. M. (1982), Analytical Model for Concrete Confinement in Tied Columns, Journal of the Structural Division, 108(12)

14.
Sim (2008), Flexural Behavior of Reinforced Concrete Columns Strengthened with Wire Ropes and T-shape Plates, Master degree, Mokpo National University

15.
Yang, K. H., Ashour, A. F., Lee, E. T. (2008), Axial behaviour of reinforced concrete short columns strengthened with wire rope and T-shaped steel plate units, Magazine of Concrete Research, 61(2)

16.
Yang, K. H., Mun, J. H., Cho, M. S., Kang, T. H. (2014), A Stress-Strain Model for Various Unconfined Concretes in Compression, Structural Journal, 111(4)

17.
Yong, Y. K., Nour, M. G., Nawy, E. G. (1988), Behavior of Laterally Confined High-Strength Concrete Under Axial Loads, Journal of the Structural Engineering, 114(2)

18.
Yun, Park (2007), Modified constitutive Models of Confined High Strength Concrete, Journal of the Korea Concrete Institute, 19(2), p.p.421-424 crossref(new window)

19.
Yun, Kang, Park (2010), Constitutive Model of Laterally Confined High Strength Concrete, Journal of the Korea Concrete Institute, 22(4), p.p.481-488 crossref(new window)