Slenderness limit for SSTT-confined HSC column
Due to the confinement effects, Steel-Straps Tensioning Technique (SSTT) can significantly enhance the strength and ductility of high-strength concrete (HSC) members (Moghaddam et al. 2008). However, the enhancement especially in strength may result in slender member and more susceptible to instabil...
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| Format: | Article |
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Techno Press
2014
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| _version_ | 1796861299983908864 |
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| author | Ma, Chau Khun Awang, Abdullah Zawawi Omar, Wahid |
| author_facet | Ma, Chau Khun Awang, Abdullah Zawawi Omar, Wahid |
| author_sort | Ma, Chau Khun |
| collection | ePrints |
| description | Due to the confinement effects, Steel-Straps Tensioning Technique (SSTT) can significantly enhance the strength and ductility of high-strength concrete (HSC) members (Moghaddam et al. 2008). However, the enhancement especially in strength may result in slender member and more susceptible to instability (Jiang and Teng 2012a). This instability is particularly significant in HSC member as it inherent the brittle nature of the material (Galano et al. 2008). The current slenderness limit expression used in the design is mainly derived from the experiment and analysis results based on Normal strength concrete (NSC) column and therefore the direct application of these slenderness limit expressions to the HSC column is being questioned. Besides, a particular slenderness limit for the SSTT-confined HSC column which incorporated the pre-tensioned force and multilayers effects is not yet available. Hence, an analytical study was carried out in the view of developing a simple equation in order to determine the slenderness limit for HSC column confined with SSTT. Based on the analytical results, it was concluded that the existing slenderness limit expressions used in the design are appropriate for neither HSC columns nor SSTTconfined HSC columns. In this paper, a slenderness limit expression which has incorporated the SSTTconfinement effects is proposed. The proposed expression can also be applied to unconfined HSC columns. |
| first_indexed | 2024-03-05T19:54:15Z |
| format | Article |
| id | utm.eprints-62604 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:54:15Z |
| publishDate | 2014 |
| publisher | Techno Press |
| record_format | dspace |
| spelling | utm.eprints-626042017-06-18T08:34:45Z http://eprints.utm.my/62604/ Slenderness limit for SSTT-confined HSC column Ma, Chau Khun Awang, Abdullah Zawawi Omar, Wahid TA Engineering (General). Civil engineering (General) Due to the confinement effects, Steel-Straps Tensioning Technique (SSTT) can significantly enhance the strength and ductility of high-strength concrete (HSC) members (Moghaddam et al. 2008). However, the enhancement especially in strength may result in slender member and more susceptible to instability (Jiang and Teng 2012a). This instability is particularly significant in HSC member as it inherent the brittle nature of the material (Galano et al. 2008). The current slenderness limit expression used in the design is mainly derived from the experiment and analysis results based on Normal strength concrete (NSC) column and therefore the direct application of these slenderness limit expressions to the HSC column is being questioned. Besides, a particular slenderness limit for the SSTT-confined HSC column which incorporated the pre-tensioned force and multilayers effects is not yet available. Hence, an analytical study was carried out in the view of developing a simple equation in order to determine the slenderness limit for HSC column confined with SSTT. Based on the analytical results, it was concluded that the existing slenderness limit expressions used in the design are appropriate for neither HSC columns nor SSTTconfined HSC columns. In this paper, a slenderness limit expression which has incorporated the SSTTconfinement effects is proposed. The proposed expression can also be applied to unconfined HSC columns. Techno Press 2014 Article PeerReviewed Ma, Chau Khun and Awang, Abdullah Zawawi and Omar, Wahid (2014) Slenderness limit for SSTT-confined HSC column. Structural Engineering and Mechanics, 50 (2). pp. 201-214. ISSN 1225-4568 http://dx.doi.org/10.12989/sem.2014.50.2.201 DOI:10.12989/sem.2014.50.2.201 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Ma, Chau Khun Awang, Abdullah Zawawi Omar, Wahid Slenderness limit for SSTT-confined HSC column |
| title | Slenderness limit for SSTT-confined HSC column |
| title_full | Slenderness limit for SSTT-confined HSC column |
| title_fullStr | Slenderness limit for SSTT-confined HSC column |
| title_full_unstemmed | Slenderness limit for SSTT-confined HSC column |
| title_short | Slenderness limit for SSTT-confined HSC column |
| title_sort | slenderness limit for sstt confined hsc column |
| topic | TA Engineering (General). Civil engineering (General) |
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