Experimental tests on SSTT-confined HSC columns

The steel-strapping tensioning technique (SSTT) has been widely accepted as an effective method for enhancing the performance of high-strength concrete (HSC) columns. Previous experimental tests showed that SSTT can increase the ductility of HSC by up to twice that of unconfined HSC. However, most o...

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Main Authors: Ma, Chau Khun, Abdullah, Zawawi Awang, Omar, Wahid, Liang Maybelle, Liang Maybelle
Format: Article
Published: Thomas Telford Services Ltd 2014
Subjects:
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author Ma, Chau Khun
Abdullah, Zawawi Awang
Omar, Wahid
Liang Maybelle, Liang Maybelle
author_facet Ma, Chau Khun
Abdullah, Zawawi Awang
Omar, Wahid
Liang Maybelle, Liang Maybelle
author_sort Ma, Chau Khun
collection ePrints
description The steel-strapping tensioning technique (SSTT) has been widely accepted as an effective method for enhancing the performance of high-strength concrete (HSC) columns. Previous experimental tests showed that SSTT can increase the ductility of HSC by up to twice that of unconfined HSC. However, most of the tests performed on SSTT-confined HSC columns have focused on concentrically loaded short specimens. In reality, however, columns with a length/diameter ratio greater than three and subjected to eccentric loading are very common. Against this background, experiments were carried out to investigate the slenderness effect of SSTT-confined HSC columns subjected to eccentric loads. It was found that SSTT increases both the strength and deformability of slender HSC columns, although the confining effects are reduced proportionally with an increase in slenderness ratio. The effects of the eccentricities and the eccentricity ratio are also presented in this paper.
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spelling utm.eprints-528152018-07-04T11:51:13Z http://eprints.utm.my/52815/ Experimental tests on SSTT-confined HSC columns Ma, Chau Khun Abdullah, Zawawi Awang Omar, Wahid Liang Maybelle, Liang Maybelle TA Engineering (General). Civil engineering (General) The steel-strapping tensioning technique (SSTT) has been widely accepted as an effective method for enhancing the performance of high-strength concrete (HSC) columns. Previous experimental tests showed that SSTT can increase the ductility of HSC by up to twice that of unconfined HSC. However, most of the tests performed on SSTT-confined HSC columns have focused on concentrically loaded short specimens. In reality, however, columns with a length/diameter ratio greater than three and subjected to eccentric loading are very common. Against this background, experiments were carried out to investigate the slenderness effect of SSTT-confined HSC columns subjected to eccentric loads. It was found that SSTT increases both the strength and deformability of slender HSC columns, although the confining effects are reduced proportionally with an increase in slenderness ratio. The effects of the eccentricities and the eccentricity ratio are also presented in this paper. Thomas Telford Services Ltd 2014 Article PeerReviewed Ma, Chau Khun and Abdullah, Zawawi Awang and Omar, Wahid and Liang Maybelle, Liang Maybelle (2014) Experimental tests on SSTT-confined HSC columns. Magazine of Concrete Research, 66 (21). pp. 1084-1094. ISSN 0024-9831 http://dx.doi.org/10.1680/macr.14.00065 DOI: 10.1680/macr.14.00065
spellingShingle TA Engineering (General). Civil engineering (General)
Ma, Chau Khun
Abdullah, Zawawi Awang
Omar, Wahid
Liang Maybelle, Liang Maybelle
Experimental tests on SSTT-confined HSC columns
title Experimental tests on SSTT-confined HSC columns
title_full Experimental tests on SSTT-confined HSC columns
title_fullStr Experimental tests on SSTT-confined HSC columns
title_full_unstemmed Experimental tests on SSTT-confined HSC columns
title_short Experimental tests on SSTT-confined HSC columns
title_sort experimental tests on sstt confined hsc columns
topic TA Engineering (General). Civil engineering (General)
work_keys_str_mv AT machaukhun experimentaltestsonssttconfinedhsccolumns
AT abdullahzawawiawang experimentaltestsonssttconfinedhsccolumns
AT omarwahid experimentaltestsonssttconfinedhsccolumns
AT liangmaybelleliangmaybelle experimentaltestsonssttconfinedhsccolumns