Research Article
Aug 1981
Post-Elastic Dynamics of Three-Dimensional Frames
Publication: Journal of the Structural Division
Volume 107, Issue 8
Abstract
The time-history response of a three-dimensional reinforced concrete frame structure to concurrent earthquake ground motions is analyzed. Yielding is allowed in both beams and columns by a series of yield surface options selected according to the principal structural actions of the component elements. Comparisons between the behavior patterns arising from unidirectional and concurrent earthquake loading indicate that the non-linear response predicted by a full three-dimensional analysis is significantly different from the response based on a planar frame idealization. Concurrent loading causes asymmetric distribution of yield as a result of the interaction of the orthogonal displacement components, and this gives rise to an eccentricity between the mass and the instantaneous center of stiffness at some levels in the building. Nominally symmetric buildings can develop torsional responses in moderate earthquakes.
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Published In
Journal of the Structural Division
Volume 107 • Issue 8 • August 1981
Pages: 1485 - 1501
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Aug 1981
Published online: Feb 1, 2021
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Authors
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Anthony G. Gillies
Asst. Engr., Beca, Carter, Hollings & Ferner, Consulting Engrs., Box 3942, Wellington, New Zealand
Robin Shepherd, F.ASCE
Prof. of Civ. Engrg., School of Engrg., Univ. of Calif., Irvine, Calif. 92717
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.