Comparative Study of Seismic Behavior of Multistory Reinforced Concrete Framed Structures
Publication: Journal of Structural Engineering
Volume 128, Issue 2
Abstract
A comparative study of the nonlinear behavior of reinforced concrete (RC) multistory structures is carried out on the basis of measured response of four six-story, three-bay framed structures, namely a regular bare frame, a discontinuous-column frame, a partially masonry-infilled frame, and a wall-frame system. The structures were designed for similar seismic requirements in accordance with Eurocode 8, and their 1:5.5 scaled models were subjected to similar earthquake simulation tests. Experimental observations and numerical analyses show that the distribution of the story shear overstrength is a rather stable indicator of the general inelastic behavior of frames, and hence, can be employed as a characteristic parameter to quantify the frame irregularity for design purposes. Abrupt discontinuity of the geometry or arrangement of structurally effective elements, where unavoidable, may be compensated by strength enhancement targeting a smoothed overstrength profile to allow for distributed inelastic deformation, and this principle applies as well to nonuniformly masonry infilled frames. For the wall-frame system, adequate countermeasures against rocking of the RC wall is shown to be a key to maintaining the effectiveness of the system at advanced inelastic response.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 128 • Issue 2 • February 2002
Pages: 169 - 178
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Feb 1, 2001
Accepted: Aug 29, 2001
Published online: Feb 1, 2002
Published in print: Feb 2002
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