Seismic torsional effects on buildings
Open Access
- 31 March 1976
- journal article
- Published by New Zealand Society for Earthquake Engineering in Bulletin of the New Zealand Society for Earthquake Engineering
- Vol. 9 (1) , 79-83
- https://doi.org/10.5459/bnzsee.9.1.79-83
Abstract
This paper gives the background to the seismic torsional provisions of the New Zealand Loadings Code. These provisions attempt to deal with three effects: accidental eccentricity, torsional ground motion, and coupling between torsional and translational modes. The first two effects lead to an effective eccentricity of one-tenth of the width of a building, while the third leads to a parabolic function of the calculated eccentricity: this was obtained by applying existing results for torsional amplification to a number of typical building structures.Keywords
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