Research Article
Jan 1976
Analysis of Shear Cores Using Superelements
Publication: Journal of the Structural Division
Volume 102, Issue 1
Abstract
A number of multistory buildings, containing concrete shear cores to house vertical services, have sustained major damage in recent earthquakes. Simplified analytical models for the shear cores cannot account for the relative stiffness of intersecting walls and for the influence of openings on the wall stiffness. Wall stress calculations are also beyond the capabilities of many of these continuum models. To remedy this, a three-dimensional shear core analytical model composed of two-dimensional rectangular plane stress and plate bending finite elements was developed. A subassemblage of finite elements forms a superelement and a stack of superelements is assembled in series elimination fashion to model the core tower. Determination of vibration frequencies, mode shapes, and nodal displacements for several isolated shear cores demonstrates the capabilities of the model. This general purpose analytical model can be readily incorporated into existing multistory-building frame models, and can serve as a basis for evaluation of simpler continuum models.
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Published In
Journal of the Structural Division
Volume 102 • Issue 1 • January 1976
Pages: 267 - 283
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Jan 1976
Published online: Feb 1, 2021
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Authors
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Barry J. Goodno, AM.ASCE
Asst. Prof. School of Civ. Engrg., Georgia Inst. of Tech., Atlanta, Ga
James M. Gere, F.ASCE
Prof. Dept. of Civ. Engrg., Stanford Univ., Stanford, Calif
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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.