Seismic retrofit of masonry wall infilled RC frames through external post-tensioning

In this study, an external post-tensioning technique was employed to enhance the seismic performance of infilled RC frames through preventing premature failure of infill walls and increase in their engagement with RC frames. Totally, six 1/3-scale single-story single-bay RC frames were constructed a...

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Main Authors: Soltanzadeh, Gholamreza, Osman, Hanim, Vafaei, Mohammadreza, Vahed, Yousef Karimi
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Published: Springer Netherlands 2018
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Online Access:http://eprints.utm.my/id/eprint/86649/
http://dx.doi.org/10.1007/s10518-017-0241-4
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spelling my.utm.866492020-09-30T09:01:35Z http://eprints.utm.my/id/eprint/86649/ Seismic retrofit of masonry wall infilled RC frames through external post-tensioning Soltanzadeh, Gholamreza Osman, Hanim Vafaei, Mohammadreza Vahed, Yousef Karimi TA Engineering (General). Civil engineering (General) In this study, an external post-tensioning technique was employed to enhance the seismic performance of infilled RC frames through preventing premature failure of infill walls and increase in their engagement with RC frames. Totally, six 1/3-scale single-story single-bay RC frames were constructed and tested. The frames were divided into two groups based on their aspect ratios. Each group consisted of a bare frame, an infilled frame and a retrofitted infilled frame. All specimens were subjected to a similar quasi-static cyclic loading and their responses were measured through load cells, strain gauges and linear variable differential transformers. Results indicated that the retrofitted infilled frames had higher initial stiffness, ultimate lateral strength and ductility ratio when compared with the bare and un-retrofitted infilled frames. The retrofitted infilled frames also showed a prolonged failure mode and a lower stiffness degradation rate compared to other frames. It was also observed that, compared to other frames, the retrofitted frames had smaller strain values at their critical zones. Springer Netherlands 2018-03 Article PeerReviewed Soltanzadeh, Gholamreza and Osman, Hanim and Vafaei, Mohammadreza and Vahed, Yousef Karimi (2018) Seismic retrofit of masonry wall infilled RC frames through external post-tensioning. Bulletin of Earthquake Engineering, 16 (3). pp. 1487-1510. ISSN 1570-761X http://dx.doi.org/10.1007/s10518-017-0241-4
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Soltanzadeh, Gholamreza
Osman, Hanim
Vafaei, Mohammadreza
Vahed, Yousef Karimi
Seismic retrofit of masonry wall infilled RC frames through external post-tensioning
description In this study, an external post-tensioning technique was employed to enhance the seismic performance of infilled RC frames through preventing premature failure of infill walls and increase in their engagement with RC frames. Totally, six 1/3-scale single-story single-bay RC frames were constructed and tested. The frames were divided into two groups based on their aspect ratios. Each group consisted of a bare frame, an infilled frame and a retrofitted infilled frame. All specimens were subjected to a similar quasi-static cyclic loading and their responses were measured through load cells, strain gauges and linear variable differential transformers. Results indicated that the retrofitted infilled frames had higher initial stiffness, ultimate lateral strength and ductility ratio when compared with the bare and un-retrofitted infilled frames. The retrofitted infilled frames also showed a prolonged failure mode and a lower stiffness degradation rate compared to other frames. It was also observed that, compared to other frames, the retrofitted frames had smaller strain values at their critical zones.
format Article
author Soltanzadeh, Gholamreza
Osman, Hanim
Vafaei, Mohammadreza
Vahed, Yousef Karimi
author_facet Soltanzadeh, Gholamreza
Osman, Hanim
Vafaei, Mohammadreza
Vahed, Yousef Karimi
author_sort Soltanzadeh, Gholamreza
title Seismic retrofit of masonry wall infilled RC frames through external post-tensioning
title_short Seismic retrofit of masonry wall infilled RC frames through external post-tensioning
title_full Seismic retrofit of masonry wall infilled RC frames through external post-tensioning
title_fullStr Seismic retrofit of masonry wall infilled RC frames through external post-tensioning
title_full_unstemmed Seismic retrofit of masonry wall infilled RC frames through external post-tensioning
title_sort seismic retrofit of masonry wall infilled rc frames through external post-tensioning
publisher Springer Netherlands
publishDate 2018
url http://eprints.utm.my/id/eprint/86649/
http://dx.doi.org/10.1007/s10518-017-0241-4
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score 13.211869