Evaluation of Seismic Pounding between Adjacent Buildings

MOHAMED, ABDEL-MOOTY and MOHAMED, RAAFAT and NASSER, ZAKI AHMED (2016) Evaluation of Seismic Pounding between Adjacent Buildings. In: Fifth International Conference On Advances in Civil, Structural and Mechanical Engineering -ACSM 2016, 25-26 September 2016, Bangkok, Thailand.

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Abstract

Insufficient separation distance between adjacent buildings may lead to their pounding resulting in damage or failure during strong earthquakes. Accordingly, most of the design codes specify a minimum separation or gap distance between adjacent buildings to prevent this pounding phenomenon. This research studies the seismic pounding between adjacent reinforced concrete buildings under various ground motions. It also investigates the factors affecting pounding and proposes a technique to mitigate it. Buildings are modeled as two-dimensional frames to idealize the adjacent buildings. The total of 10 different cases of adjacent frames with different height combinations. Nonlinear time history analysis is utilized using finite element computer program ETABS. Real earthquake records are scaled and used to simulate ground motion. Gap element is used to model pounding between buildings. The effect of variation of some design parameters on seismic pounding is investigated. Different parameters are studied including the separation distance, dynamic characteristic of the buildings and the number of the floor of the adjacent buildings. A technique for mitigation of pounding effect based on rigidly connecting selected floors in adjacent buildings is proposed and numerically tested. The results of the study are analyzed and the effect of the different factors are evaluated.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: structural pounding, dynamic analysis, poudning mitigation
Depositing User: Mr. John Steve
Date Deposited: 20 Mar 2019 12:06
Last Modified: 20 Mar 2019 12:06
URI: http://publications.theired.org/id/eprint/712

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