Comparison of Building Analyses Assuming Rigid or Flexible Floors
Publication: Journal of Structural Engineering
Volume 125, Issue 1
Abstract
The main purpose of this paper is to investigate the difference between the rigid-floor and flexible-floor analyses of buildings. The finite-element method is used to analyze the buildings with and without shear walls. From a number of response-spectrum analyses, the rigid-floor model was found to be accurate enough for regular and nonregular buildings without shear walls. However, the difference between the rigid-floor and flexible-floor analyses can be large for the buildings with shear walls. Thus, an error formula is generated using the regression analysis of the rigid-floor and flexible-floor analyses from 520 rectangular, U-shaped, and T-shaped buildings. Using this formula, one can estimate the error of the structural analysis of a building with shear walls when the rigid-floor assumption is used.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 125 • Issue 1 • January 1999
Pages: 25 - 31
History
Received: Sep 2, 1997
Published online: Jan 1, 1999
Published in print: Jan 1999
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