CFRP Composite Connector for Concrete Members
Publication: Journal of Composites for Construction
Volume 7, Issue 1
Abstract
Steel plate connections are frequently used in tilt-up and precast concrete building construction to tie adjacent wall panels together for shear and overturning effects, and to provide continuous diaphragm chord connections for wind and seismic loading. These welded connectors perform poorly in regions of high seismicity and are vulnerable to corrosion. Until now, retrofit and repair strategies for in-plane shear transfer strengthening were limited to attaching steel sections across panel edges. In the present paper, an experimental program is described that utilizes carbon fiber reinforced plastic (CFRP) composites to develop a viable retrofit scheme for precast concrete shear walls and diaphragms. Nine full-scale precast wall panel assemblies with CFRP composite connectors have been tested. The results show that the CFRP composite connection is an effective solution for the seismic retrofit and repair of precast concrete wall assemblies and other precast concrete elements, such as horizontal diaphragms, that require in-plane shear transfer strengthening.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 7 • Issue 1 • February 2003
Pages: 73 - 82
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Apr 24, 2001
Accepted: Feb 13, 2002
Published online: Jan 15, 2003
Published in print: Feb 2003
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