Repaired RC Flat-Slab-Column Subassemblages under Lateral Loading
Publication: Journal of Structural Engineering
Volume 121, Issue 11
Abstract
Results of laboratory tests on four repaired reinforced-concrete flat-slab interior column connections, carrying quasi-static, reversed, horizontal loadings are presented. The specimens, which originally had totally failed, were repaired and subjected to gradually increasing reversed loading histories, similar to those imposed on the original specimens. A comparative analysis was made before the repair. The specimens were repaired by using externally screwed steel plates replacing the lost or damaged full reinforcement of the slab. In addition, high-pressure epoxy injection provided the bond between the concrete and the new reinforcement. Moreover, this repair method can be easily used to restore, strengthen, or upgrade existing and old flat-slab buildings, not suitably designed to withstand earthquakes. The practical aspects of the repair technique developed for postearthquake mass production were emphasized, with satisfactory results even when not applied by research laboratory experts.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 121 • Issue 11 • November 1995
Pages: 1710 - 1720
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Nov 1, 1995
Published in print: Nov 1995
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