Affiliation:
1. Facultad de Ingeniería, Universidad Autónoma del Estado de México, Toluca, Edo. de México, Mexico
Abstract
Multistory models are studied to assess design recommendations for torsionally unbalanced multistory buildings. Structural systems are assumed as shear beams with nonlinear lateral-resisting elements oriented along two orthogonal directions and subjected to a bidirectional earthquake ground motion. Five-story rigid-diaphragm models with mass or stiffness eccentricity are considered in the study. Accidental eccentricity is not included in the modeling and, therefore, its related recommendations are not assessed. Design recommendations studied here are based on the simple static procedure and include two values and an expression for the amplification factor α to compute story eccentricities, three values of the torsion-shear reduction factor δ, an additional lateral force Ft to be applied at the building top level, and a minimal story eccentricity for the building. Design recommendations to control ductility demands of torsionally unbalanced multistory buildings are given.
Subject
Geophysics,Geotechnical Engineering and Engineering Geology
Reference17 articles.
1. A modified static procedure for the design of torsionally unbalanced multistorey frame buildings
2. Chopra, A. K., 2001.Dynamics of Structures—Theory and Applications to Earthquake Engineering 2nd Ed., Prentice Hall, Upper Saddle River, NJ.
3. Effect of transverse load-resisting elements on inelastic earthquake response of eccentric-plan buildings
4. De la Llera, J. C., and Chopra, A. K., 1994.Accidental and Natural Torsion in Earthquake Response and Design of Buildings, Report No. UCB/EERC-94/07, Earthquake Engineering Research Center, University of California, Berkeley, CA.
5. Inelastic seismic response of code-designed multistorey frame buildings with regular asymmetry
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