Effect of Slab on Inelastic Response of R/C Building
Publication: Journal of Structural Engineering
Volume 119, Issue 5
Abstract
Tests on beam‐to‐column connections have shown that the presence of a slab significantly increases the flexural resistance of the beam under bending, which causes tension in the slab. The analytical beam models should, therefore, be able to simulate this behavior in the inelastic dynamic analysis of buildings. A multispring beam model modified to recognize different strengths and stiffnesses of the beam in the slab‐in‐tension and slab‐in‐compression directions of bending is presented. Analysis of a typical multistory building with the proposed method of beam‐slab representation indicates significant increases in story accelerations and base shear. The curvature ductility demand at the two ends of the beam is affected by the increasing participation of the slab. Furthermore, by recognizing the increased capacity of the beam‐slab section, the demands placed on the columns can be estimated more realistically to assure a strong‐column and weak‐beam mechanism.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 5 • May 1993
Pages: 1374 - 1387
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jun 13, 1991
Published online: May 1, 1993
Published in print: May 1993
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