Non Linear Analysis of Reinforced Concrete Column Strengthened by Reinforced Concrete Jacketing with High Strength Steel

Imron Imron, Bambang Piscesa, Achfas Zacoeb

Abstract


The strengthening column structure elements with reinforced concrete jacketing were chosen in this study because it is the most common and easy to apply practically to existing column structures. Modeling data using test specimens from Ersoy et. al by adhering to constitutive models of concrete materials from Attard and Stunge and Bilinear steel. The purpose is to perform non-linear analysis modeling through the behavior of the section of the RC column reinforced with RC jacket by taking into account the influence of interface slip and initial strain by using a two-dimensional sectional analysis approach with a fiber-based method made using MATLAB. Non-linear analysis was performed to obtain the moment-curvature relationship and validate the modeling results with the experimental model then make modeling variations based on the variations high strength steel reinforcement and evaluate the results in curvature ductility and index ductility. The prediction results showed a fairly good fit with the experimental results and modeling variations showed that the greater value of interface slip coefficient, the higher the curvature ductility and index ductility, the variation modeling using high-strength steel in longitudinal reinforcement can increase flexural, axial and lateral capacity, but it is lower in ductility, while using normal strength steel for longitudinal reinforcement and high strength steel for lateral reinforcement with tighter spacing provides higher ductility.

Keywords


structure

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References


J. B. Mander, M. J. Priestley, and R. Park, "Theoretical stress-strain model for confined concrete," Journal of Structural Engineering, vol. 114, no. 8, pp. 1804-1826, 1988.

A. R. Takeuti, J. B. de Hanai, and A. Mirmiran, "Preloaded RC columns strengthened with high-strength concrete jackets under uniaxial compression," Materials and Structures, vol. 41, no. 7, pp. 1251-1262, 2008.

K. Ong, Y. Kog, C. Yu, and A. Sreekanth, "Jacketing of reinforced concrete columns subjected to axial load," Magazine of Concrete Research, vol. 56, no. 2, pp. 89-98, 2004.

S. N. Bousias, D. Biskinis, M. N. Fardis, and A.-L. Spathis, "Strength, stiffness, and cyclic deformation capacity of concrete jacketed members," ACI Structural Journal, vol. 104, no. 5, p. 521, 2007.

E. Júlio and F. A. Branco, "Reinforced concrete jacketing-interface influence on cyclic loading response," ACI Structural Journal, vol. 105, no. 4, p. 471, 2008.

K. G. Vandoros, and S. E. Dritsos, "Concrete jacket construction detail effectiveness when strengthening RC columns," Construction and Building Materials, vol. 22, no. 3, pp. 264-276, 2008.

M. Attard, and S. Setunge, "Stress-strain relationship of confined and unconfined concrete," ACI Materials Journal, vol. 93, no. 5, 1996.

A. C. I. Committee, Building code requirements for structural concrete (ACI 318-19) and commentary, (Farmington Hills: American Concrete Institute), 2019.

A. S. T. Materials, ASTM A615/A615M-09b Standard specification for deformed and plain carbon-steel bars for concrete reinforcement, 2009.

A. S. T. Materials, ASTM A706/A706M–04a Standard specification for low-alloy steel deformed and plain bars for concrete reinforcement, 2009.

B. Piscesa, M. Attard, P. Suprobo, and A. Samani, "Investigation on the fiber based approach to estimate the axial load carrying capacity of the circular concrete filled steel tube (CFST)," in IOP Conference Series: Materials Science and Engineering, 2017, vol. 267, no. 1: IOP Publishing, p. 012017.

B. Piscesa, D. Prasetya, M. Irmawan, and H. Alrasyid, "Ductility evaluation of reinforced concrete column made of normal- to high-strength concrete under constant axial load level combined with flexural loading using nonlinear sectional fiber based model," Journal of Civil Engineering, vol. 34, no. 1, pp. 3-8, 2019.

D. L. Logan, A first course in the finite element method. Cengage Learning, 2016.

U. Ersoy, A. T. Tankut, and R. Suleiman, "Behavior of jacketed columns," Structural Journal, vol. 90, no. 3, pp. 288-293, 1993.

R. Park, and T. Paulay, Reinforced concrete structures. John Wiley & Sons, 1975.

G. Campione, M. Fossetti, C. Giacchino, and G. Minafò, "RC columns externally strengthened with RC jackets," Materials and Structures, vol. 47, no. 10, pp. 1715-1728, 2014.

G. Minafò, F. Di Trapani, and G. Amato, "Strength and ductility of RC jacketed columns: A simplified analytical method," Engineering Structures, vol. 122, pp. 184-195, 2016.

S. J. Foster, and M. M. Attard, "Experimental tests on eccentrically loaded high strength concrete columns," Structural Journal, vol. 94, no. 3, pp. 295-303, 1997.

G. E. Thermou, V. K. Papanikolaou, and A. J. Kappos, "Flexural behaviour of reinforced concrete jacketed columns under reversed cyclic loading," Engineering Structures, vol. 76, pp. 270-282, 2014.

N. Caglar, A. Sichko, H. Sezen, E. Bicici, A. Demir, and A. F. Farah, "Interface slip model for reinforced concrete columns strengthened with concrete jacketing," Revista de la Construcción, vol. 19, no. 2, pp. 180-189, 2020.




DOI: http://dx.doi.org/10.12962/j20861206.v37i2.13641

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