INVESTIGATION OF DETERIORATION BEHAVIOR OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMRNT RESISTING FRAME BUILDINGS

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GHODRATI AMIRI GH.R.; KOUREHLI S.S.

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Journal Paper

Paper Information

Journal: Sharif Journal of Civil Engineering Year:2009 | Volume:24 | Issue:46.1 Page(s): 33-44

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Title

INVESTIGATION OF DETERIORATION BEHAVIOR OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMRNT RESISTING FRAME BUILDINGS

Author(s)

GHODRATI AMIRI GH.R. | KOUREHLI S.S. | Issue Writer Certificate

Keywords

DETERIORATION BEHAVIOR

NONLINEAR STATIC ANALYSIS

SEISMIC DAMAGE

SPECIAL MOMENT RESISTING FRAME

Abstract

In this paper, the effect of the DETERIORATION BEHAVIOR of hysteretic cycles in NONLINEAR STATIC ANALYSIS (pushover) has been studied. One of the deficiencies of this method is that the deterioration of hysteretic cycles for structural elements is approximately considered in this analysis. To evaluate this effect, nine SPECIAL MOMENT RESISTING FRAMEs have been used and loaded, based on the Iranian Code of Practice for Seismic Resistant Design of Buildings (Standard No.2800, 3rd Edition). These frames have been analyzed and designed by ETABS software. The modified Takeda and non-degrading Clough models have been used in inelastic dynamic analysis. The two latter models have been successfully used in the past to analytically reproduce the hysteretic behavior of well-detailed flexural-controlled reinforced concrete elements. The inelastic dynamic analysis of the reinforced concrete structures program, IDARC, is used for nonlinear static and dynamic analysis, which considers damage analysis by using the Park & Ang damage model. The maximum displacement amounts obtained from nonlinear dynamic analysis are compared with those obtained from NONLINEAR STATIC ANALYSIS. Results show that the average amounts of maximum displacement increase 4% and 9%, respectively; with considering deterioration effects at different seismic hazard levels (0.2g and 0.25g), rather than target displacements of a pushover analysis. In addition, in the modified Takeda model that considers deterioration effects, the damage index for a seismic hazard level of 0.2g, increases by 53% more than that of the bilinear model. This ratio is 81% for a seismic hazard level of 0.25g.

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APA: Copy

GHODRATI AMIRI, GH.R., & KOUREHLI, S.S.. (2009). INVESTIGATION OF DETERIORATION BEHAVIOR OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMRNT RESISTING FRAME BUILDINGS. SHARIF: CIVIL ENINEERING, 24(46.1), 33-44. SID. https://sid.ir/paper/559938/en

Vancouver: Copy

GHODRATI AMIRI GH.R., KOUREHLI S.S.. INVESTIGATION OF DETERIORATION BEHAVIOR OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMRNT RESISTING FRAME BUILDINGS. SHARIF: CIVIL ENINEERING[Internet]. 2009;24(46.1):33-44. Available from: https://sid.ir/paper/559938/en

IEEE: Copy

GH.R. GHODRATI AMIRI, and S.S. KOUREHLI, “INVESTIGATION OF DETERIORATION BEHAVIOR OF HYSTERETIC LOOPS IN NONLINEAR STATIC ANALYSIS (PUSHOVER) FOR SPECIAL MOMRNT RESISTING FRAME BUILDINGS,” SHARIF: CIVIL ENINEERING, vol. 24, no. 46.1, pp. 33–44, 2009, [Online]. Available: https://sid.ir/paper/559938/en

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