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Natural and accidental torsion in one-storey structures on elastic foundation under non-vertically incident SH-waves

2006; Wiley; Volume: 35; Issue: 7 Linguagem: Inglês

10.1002/eqe.558

1096-9845

Javier Avilés, Martha Suárez,

Seismic Performance and Analysis

Earthquake Engineering & Structural DynamicsVolume 35, Issue 7 p. 829-850 Research Article Natural and accidental torsion in one-storey structures on elastic foundation under non-vertically incident SH-waves Javier Avilés, Corresponding Author Javier Avilés javiles@tlaloc.imta.mx Instituto Mexicano de Tecnología del Agua, Jiutepec 62550 Morelos, MéxicoInstituto Mexicano de Tecnología del Agua, Jiutepec 62550 Morelos, MéxicoSearch for more papers by this authorMartha Suárez, Martha Suárez Instituto de Ingeniería, UNAM, Apdo. 70-472, Coyoacán 04510, MéxicoSearch for more papers by this author Javier Avilés, Corresponding Author Javier Avilés javiles@tlaloc.imta.mx Instituto Mexicano de Tecnología del Agua, Jiutepec 62550 Morelos, MéxicoInstituto Mexicano de Tecnología del Agua, Jiutepec 62550 Morelos, MéxicoSearch for more papers by this authorMartha Suárez, Martha Suárez Instituto de Ingeniería, UNAM, Apdo. 70-472, Coyoacán 04510, MéxicoSearch for more papers by this author First published: 10 February 2006 https://doi.org/10.1002/eqe.558Citations: 9AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Factors α and β used in equivalent static analysis to account for natural and accidental torsion are evaluated with consideration of soil–structure interaction. The combined torsional effects of structural asymmetry and foundation rotation are examined with reference to a single monosymmetric structure placed on a rigid foundation that is embedded into an elastic half-space, under to the action of non-vertically incident SH waves. Dynamic and accidental eccentricities are developed such that when used together with the code-specified base shear, the resulting static displacement at the flexible edge of the building is identical to that computed from dynamic analysis. It is shown that these eccentricities do not have a unique definition because they depend on both the selection of the design base shear and the criterion used for separation of the torsional effects of foundation rotation from those of structural asymmetry. Selected numerical results are presented in terms of dimensionless parameters for their general application, using a set of appropriate earthquake motions for ensuring generality of conclusions. The practical significance of this information for code-designed buildings is elucidated. Copyright © 2006 John Wiley & Sons, Ltd. Citing Literature Volume35, Issue7June 2006Pages 829-850 RelatedInformation