Analytical Modeling of Masonry-Infilled RC Frames Retrofitted with Textile-Reinforced Mortar
Publication: Journal of Composites for Construction
Volume 19, Issue 5
Abstract
This paper proposes an analytical approach for modeling the behavior of textile-reinforced mortar (TRM)-strengthened masonry-infilled reinforced-concrete (RC) frames under seismic loading. The model falls into the discrete diagonal-element type and is based on the use of single-strut and single-tie elements to represent the infill panel. It builds on the results of past experimental studies by the writers, in which the application of TRM jacketing was effective for seismic retrofitting of masonry-infilled RC frames. The model is implemented in a nonlinear finite-element code, with the parameters of the diagonal elements being determined from a series of tests on TRM coupons and masonry specimens. The results of the numerical analyses are compared with the experimental data of cyclic tests on 3-story masonry infilled RC frames (as-built and after retrofitting). The model developed in this paper adequately accounts for the TRM-strengthening contribution to the global response of masonry-infilled frames.
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Acknowledgments
The research reported in this paper has been cofinanced by the European Union [European Social Fund (ESF)] and Greek national funds through the operational program Education and Lifelong Learning of the National Strategic Reference Framework (NSRF), research funding program HERACLEITUS II, Investing In Knowledge Society through the European Social Fund. The writers wish to thank Associate Professor Christis Chrysostomou for input on modeling aspects; graduate student Stavroula Skafida for advice on the numerical simulations; and undergraduate students A. Mystiliadi, E. Argyropoulou, and K. Kefalou for assistance in different parts of the experimental program.
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Published In
Journal of Composites for Construction
Volume 19 • Issue 5 • October 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Aug 2, 2014
Accepted: Nov 20, 2014
Published online: Dec 17, 2014
Discussion open until: May 17, 2015
Published in print: Oct 1, 2015
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