THE EFFECT OF RANDOM MASS, STIFFNESS AND ECCENTRICITY PARAMETERS ON SEISMIC RESPONSE OF TORSIONAL SYSTEM

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GHAFOURI ASHTIANI M.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION B- ENGINEERING Year:2001 | Volume:25 | Issue:B1 Page(s): 93-114

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Title

THE EFFECT OF RANDOM MASS, STIFFNESS AND ECCENTRICITY PARAMETERS ON SEISMIC RESPONSE OF TORSIONAL SYSTEM

Author(s)

GHAFOURI ASHTIANI M. | Issue Writer Certificate

Keywords

RANDOM VIBRATION

TORSIONAL STRUCTURE

ECCENTRICITY

EARTHQUAKE

Abstract

–In this paper, the effect of random ECCENTRICITY, mass and stiffness parameter on the dynamic characteristics of structure and story shear and torsional response has been comprehensively examined. Numerical results are obtained for a five-story torsional building excited by random excitation with various damping ratio and frequency parameter values using both approaches of response calculations – a more accurate complex mode and an approximate normal mode have been used. The results show that the introduction of eccentricity in a direction introduces torsional moments in the system and reduces the direct story shear. For a safe design, ECCENTRICITY should be neglected in the calculations for shear, and a value of 0.05 of radius of gyration for calculation of torsional moment should be considered, even if a structure is intended to be symmetrical.

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APA: Copy

GHAFOURI ASHTIANI, M.. (2001). THE EFFECT OF RANDOM MASS, STIFFNESS AND ECCENTRICITY PARAMETERS ON SEISMIC RESPONSE OF TORSIONAL SYSTEM. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION B- ENGINEERING, 25(B1), 93-114. SID. https://sid.ir/paper/530519/en

Vancouver: Copy

GHAFOURI ASHTIANI M.. THE EFFECT OF RANDOM MASS, STIFFNESS AND ECCENTRICITY PARAMETERS ON SEISMIC RESPONSE OF TORSIONAL SYSTEM. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION B- ENGINEERING[Internet]. 2001;25(B1):93-114. Available from: https://sid.ir/paper/530519/en

IEEE: Copy

M. GHAFOURI ASHTIANI, “THE EFFECT OF RANDOM MASS, STIFFNESS AND ECCENTRICITY PARAMETERS ON SEISMIC RESPONSE OF TORSIONAL SYSTEM,” IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION B- ENGINEERING, vol. 25, no. B1, pp. 93–114, 2001, [Online]. Available: https://sid.ir/paper/530519/en

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