EVALUATION OF NONLINEAR BEHAVIOR OF MOMENT-RESISTING REINFORCED CONCRETE FRAME USING THE RESPONSE SURFACE METHOD

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KHEYRODDIN A.; JAHAN A.; BITARAF A.R.

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Journal: Sharif Journal of Civil Engineering Year:2016 | Volume:32-2 | Issue:1.1 Page(s): 141-152

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Title

EVALUATION OF NONLINEAR BEHAVIOR OF MOMENT-RESISTING REINFORCED CONCRETE FRAME USING THE RESPONSE SURFACE METHOD

Author(s)

KHEYRODDIN A. | JAHAN A. | BITARAF A.R. | Issue Writer Certificate

Keywords

NONLINEAR BEHAVIORQ2

DAMAGE INDEXQ2

REINFORCED CONCRETEQ1

CYCLIC LOADINGQ2

RESPONSE SURFACE METHODQ2

Abstract

In recent years, there has been an increasing interest in studying the effect of different parameters on the NONLINEAR BEHAVIOR of moment resisting REINFORCED CONCRETE structures. However, it seems that simultaneous evaluation of some parameters needs a comprehensive statistical analysis. This paper describes a logical investigation into the seismic behavior of a five storey moment resisting REINFORCED CONCRETE structure under cyclic lateral load, using an inelastic analysis computer program named IDARC. The RESPONSE SURFACE METHOD was used for the experimental design and analysis of the interaction effect of 4 factors: column dimension ratio, longitudinal and shear reinforcement, column confinement and effectiveness coefficient, on the overall DAMAGE INDEX and stiffness degradation of the structure. Using the central composite design method, each 4 factors were defined over 5 levels. 25 IDARC models were analyzed and 4 responses obtained: DAMAGE INDEX at drifts equal to 1.5%, 3% and 4% of the structure height, and the tangent of stiffness degradation in a linear area, were taken from each model. A computer program, named; Design Expert 7, was used for statistical analysis. Results show that in linear areas, the drift equals 1.5% of the structure height. The overall DAMAGE INDEX is affected by the column dimension ratio, longitudinal reinforcement and the column confinement effectiveness coefficient. However, in nonlinear areas, where the drift equals 4% of the structure height, the DAMAGE INDEX is affected by the column dimension ratio and longitudinal reinforcement. In linear areas, the effect of shear reinforcement, and, in nonlinear areas, the effect of shear reinforcement and the column confinement effectiveness coefficient, on the overall DAMAGE INDEX of the structure, is negligible. Furthermore, results show that the stiffness degradation of the structure is affected by the column dimension ratio, longitudinal reinforcement and the column confinement effectiveness coefficient. However, the effect of shear reinforcement on the stiffness degradation of the structure is negligible. The presented numerical model can be used for prediction of the DAMAGE INDEX.

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APA: Copy

KHEYRODDIN, A., JAHAN, A., & BITARAF, A.R.. (2016). EVALUATION OF NONLINEAR BEHAVIOR OF MOMENT-RESISTING REINFORCED CONCRETE FRAME USING THE RESPONSE SURFACE METHOD. SHARIF: CIVIL ENINEERING, 32-2(1.1), 141-152. SID. https://sid.ir/paper/128224/en

Vancouver: Copy

KHEYRODDIN A., JAHAN A., BITARAF A.R.. EVALUATION OF NONLINEAR BEHAVIOR OF MOMENT-RESISTING REINFORCED CONCRETE FRAME USING THE RESPONSE SURFACE METHOD. SHARIF: CIVIL ENINEERING[Internet]. 2016;32-2(1.1):141-152. Available from: https://sid.ir/paper/128224/en

IEEE: Copy

A. KHEYRODDIN, A. JAHAN, and A.R. BITARAF, “EVALUATION OF NONLINEAR BEHAVIOR OF MOMENT-RESISTING REINFORCED CONCRETE FRAME USING THE RESPONSE SURFACE METHOD,” SHARIF: CIVIL ENINEERING, vol. 32-2, no. 1.1, pp. 141–152, 2016, [Online]. Available: https://sid.ir/paper/128224/en

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