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Seismic design and performance of steel moment resisting frame buildings designed using NBCC 2005

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Seismic design and performance of steel moment resisting frame buildings designed using NBCC 2005

Yousuf, Md (2006) Seismic design and performance of steel moment resisting frame buildings designed using NBCC 2005. Masters thesis, Concordia University.

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Abstract

Currently the building code authorities in many jurisdictions including Canada feel that a performance-based design approach should be used to ensure that the structure has adequate strength and deformation capacities. Although the National Building Code of Canada (NBCC 2005) is not yet a fully performance-based code, it presents an objective-based format which incorporates some concepts of the performance-based design. It provides a force-based seismic design approach, where the displacement capacities are provided indirectly. The current research focuses on the performance of a set of five, ten, fifteen and twenty storey steel moment resisting frame buildings designed according to the seismic provisions on NBCC 2005. A series of static and dynamic analyses have been carried out to evaluate their performance. It has been observed that the assumed ductility capacity in the force-based design may not always be achievable, and the capacity of the building, under seismic force decrease, with the increase of building height. Also the nonstructural element has a great effect on the performance of the structure and it decreases the drift demand. The thesis also examines a number of simple methods available for performance-based design of buildings and implemented some of them for one of the buildings considered here. It has been observed that the design base shear calculated for a target damage parameter or drift demand, varies based on the method used. Further studies are needed to develop a robust method for performance-based design within the context of the Canadian code.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Thesis (Masters)
Authors:Yousuf, Md
Pagination:x, 110 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:M.A. Sc.
Program:Building, Civil and Environmental Engineering
Date:2006
Thesis Supervisor(s):Bagchi, Ashutosh
ID Code:9195
Deposited By:Concordia University Libraries
Deposited On:18 Aug 2011 14:46
Last Modified:30 Nov 2011 16:44
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