CURVATURE DUCTILITYOF REINFORCED CONCRETE BEAM SECTIONS STIFFENED WITH STEEL PLATES

Main Article Content

Thamir K. Al-Azzawi
Raad K. Al Azzawi
Teghreed H. Ibrahim

Abstract

This paper presents theoretical parametric study of the curvature ductility capacity for
reinforced concrete beam sections stiffened with steel plates. The study considers the behavior of
concrete and reinforcing steel under different strain rates. A computer program has been written to
compute the curvature ductility taking into account the spalling in concrete cover. Strain rate
sensitive constitutive models of steel and concrete were used for predicting the moment-curvature
relationship of reinforced concrete beams at different rate of straining. The study parameters are the
yield strength of main reinforcement, yield strength of transverse reinforcement, compressive
strength of concrete, spacing of stirrups and steel plate thickness. The results indicated that higher
strain rates improve both the curvature ductility and the moment capacity of reinforced concrete
beam sections. Moreover the section curvature ductility increases as the thickness of the stiffening
plates decreases.

Article Details

How to Cite
“CURVATURE DUCTILITYOF REINFORCED CONCRETE BEAM SECTIONS STIFFENED WITH STEEL PLATES” (2006) Journal of Engineering, 12(04), pp. 1031–1045. doi:10.31026/j.eng.2006.04.11.
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Articles

How to Cite

“CURVATURE DUCTILITYOF REINFORCED CONCRETE BEAM SECTIONS STIFFENED WITH STEEL PLATES” (2006) Journal of Engineering, 12(04), pp. 1031–1045. doi:10.31026/j.eng.2006.04.11.

Publication Dates

References

Al Haddad, M. S. "Curvature Ductility of R.C. Beams Under Low & High Strain Rates" ACI Structural Jor. , Vol. 92, No. 5, Sep. – Oct. 1995, pp 526 – 534.

Bing, L., Park, R. and Tanka, H. “Stress-Strain Behavior of High Strength Concrete Confined by Ultra High and Normal Strength transverse Reinforcements” ACI Str. Journal Vol.98, No.3, May-June 2001, pp. 395–406.

Corley, W. G. "Rotational Capacity of Reinforced Concrete Beams" Journal Str. Divi. ASCE Vol. 92, No. st5, October, 1966, pp. 121-146.

Hussain, M., Sharif, A., Basunbul, I. A., Baluch, M. H. and Al-Sulaimani, G. J. "Flexural Behavior of Precracked R/C Beams Strengthened Externally by Steel Plates" ACI Str. Journal Vol. 92, No. 1, Jan.–Feb., 1995 pp. 14-22.

Park and Paulay “Reinforced Concrete Structures” 1975.

Razvi,S. & Saatciaglu ,M. "Confinement Model for High Strength Concrete" Jor. Str. Eng. ASCE, March, 1999.

Scott, B. D., Park, R. and Priestley, M. J. N. "Stress-Strain Behavior of Concrete Confined by

Overlapping Hoops at Low and High Strain Rates" ACI Jor. January – February, 1982, pp 13 –27.

Soroushian, P. "Steel Mechanical Properties at Different Strain Rates" ASCE Jor. Str. Eng., Vol.113, No. 4, April, 1987, pp. 663 – 672.

Soroushian, P. and Sim, J. "Axial Behavior of R.C. Columns Under Dynamic loads" ACI Jor. November – December 1986, pp 1018 - 1025.

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