A Novel Anchorage System For Strengthening Slender RC Columns With Externally Bonded CFRP Composite Sheets
Sponsor
The authors express gratitude to the Higher Committee for Education Development in Iraq (HCED) for financially supporting the research project, the Department of Civil & Environmental Engineering at Portland State University for providing laboratory and technical support, and friends and colleagues who helped with experimental work.
Published In
Construction and Building Materials
Document Type
Citation
Publication Date
6-2020
Abstract
Previous studies have shown that using externally bonded (EB) fiber reinforced polymer (FRP) is one of the most effective techniques for strengthening reinforced concrete (RC) structures. The current guidelines recommend using anchorage systems to prevent debonding failure. Strengthening RC columns for flexure, the use of an anchorage system is necessary to transfer the forces from the column to the foundation. In this study, three types of Carbon Fiber Reinforced Polymer (CFRP) anchors were tested under pullout loading. The best of the three anchors, based on the results of pullout tests, was used in strengthening one RC column. Three half-scale specimens of RC columns were tested under a combination of constant axial and cyclic lateral load. As expected, the results showed that strengthening RC columns with lateral confinement only increased the ductility of the columns but did not have a major effect on the moment capacity or stiffness. However, the lateral stiffness, moment capacity, and ductility of the columns confined with CFRP and strengthened with longitudinal CFRP sheets anchored to the foundation using a proposed novel anchor exhibited significant improvements.
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DOI
10.1016/j.conbuildmat.2020.118423
Persistent Identifier
https://archives.pdx.edu/ds/psu/33351
Citation Details
Aules, W., Saeed, Y. M., & Rad, F. N. (2020). A novel anchorage system for strengthening slender RC columns with externally bonded CFRP composite sheets. Construction & Building Materials, 245, N.PAG. https://doi.org/10.1016/j.conbuildmat.2020.118423
Description
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