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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 108
PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
Edited by: J. Kruis, Y. Tsompanakis and B.H.V. Topping
Paper 174

Natural Period and Epicentral Distance Randomness Effect on the Base Shear Force

S. Dorbani1, M. Badaoui2 and D. Benouar1

1Built Environment Laboratory, Faculty of Civil Engineering, University of Sciences and Technologies Houari Boumediene, Algiers, Algeria
2Construction Supply & Services Integrated, France

Full Bibliographic Reference for this paper
S. Dorbani, M. Badaoui, D. Benouar, "Natural Period and Epicentral Distance Randomness Effect on the Base Shear Force", in J. Kruis, Y. Tsompanakis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 174, 2015. doi:10.4203/ccp.108.174
Keywords: base shear force, natural period randomness, epicentral distance randomness, reinforced concrete buildings, lognormal probability distribution.

Summary
The aim of this paper is to analyze the sensitivity of the base shear force to the randomness of the structure natural period and epicentral distance. To this end, several reinforced concrete buildings (six, nine and twelve stories), with different floor plans: symmetric, monosymmetric, and unsymmetric are considered. These structures are erected at different epicentral distances.

Initially, an expression linking the variation of the base shear force depending on the natural period of the structure and the epicentral distance is outlined. Then, this response is analyzed with hypotheses that both the considered parameters (natural period and epicentral distance) are lognormal random variables, where the confidence interval of base shear force's statistics (mean, standard deviation) are analyzed under the change of the coefficient of variation of each parameter.

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