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2-D non-linear seismic analysis of one-storey eccentric precast concrete buildings

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Title: 2-D non-linear seismic analysis of one-storey eccentric precast concrete buildings
Author: Parmar, Surinder Singh
Degree: Master of Applied Science - MASc
Program: Civil Engineering
Copyright Date: 1987
Subject Keywords Precast concrete construction;Buildings -- Earthquake effects;Earthquake resistant design
Issue Date: 2010-07-21
Publisher University of British Columbia
Series/Report no. UBC Retrospective Theses Digitization Project [http://www.library.ubc.ca/archives/retro_theses/]
Abstract: Investigations into the behaviour of precast buildings under earthquake loading have shown that the connections are likely to be the weakest link in a pre-cast structure, and the stability of the structure under earthquake loading depends upon the strength & stability of these connections. A 2-dimensional non-linear dynamic analysis of a one storey box-type pre-cast buildings is presented. The shear walls in the buildings are modelled by linear springs, the properties of which depend upon the connections connecting the rigid panels of the shear walls. To check the effectiveness of the NBCC code design, computer studies have been made on a box-type building statically designed for different eccentricities. The strength of the shear walls was calculated assuming that each panel was a cantilever fixed at the base with dowel bars providing the flexural steel. To make the building survive a major earthquake, we need dowel connections that can take 5mm to 6mm elongation which can be easily accommodated. Studies have also shown that under the action of an earthquake, the response of a highly unsymmetrical building will not be very different from that of a symmetric building as long as the building is properly designed using the NBCC code provisions for earthquake loading. It has also been shown that the NBCC code design eccentricity equation is somewhat conservative in calculating the design eccentricity and that a small change in the stiffness of walls perpendicular to the direction of earthquake has little effect on the response of the structures.
Affiliation: Applied Science, Faculty of
URI: http://hdl.handle.net/2429/26728
Scholarly Level: Graduate

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