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Appl. Sci. 2016, 6(5), 119; doi:10.3390/app6050119

Application of a New Anchorage towards the Flexural Strengthening of RC Rectangular Beams with External Steel Tendons

1
College of Engineering, Sungkyunkwan University, 2066, Seobu-Ro, Jangan-Gu, Suwon-Si, Gyeonggi-Do 16419, Korea
2
Department of Technology Education, Chungnam University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea
3
Department of Civil and Environmental Engineering, Sungkyunkwan University, 2066, Seobu-Ro, Jangan-Gu, Suwon-Si, Gyeonggi-Do 16419, Korea
*
Author to whom correspondence should be addressed.
Academic Editor: Wen-Hsiang Hsieh
Received: 8 January 2016 / Revised: 14 April 2016 / Accepted: 15 April 2016 / Published: 25 April 2016
View Full-Text   |   Download PDF [3749 KB, uploaded 25 April 2016]   |  

Abstract

To strengthen concrete beams, a new anchorage was proposed, and its performance was evaluated in this study. Seven concrete beams were manufactured and flexurally loaded with displacement control up to the failure point. As important test variables, the anchorage type (new/conventional) and the prestress levels in the steel rebar (0, 50, and 100 kN) were selected. To investigate the strengthening effects based on these test variables, the deflection, strain, and failure mode were recorded, and then the load, ductility index, and energy ratio were analyzed. Test results showed that the newly proposed end anchorage had better strengthening effects and a greater inelastic energy than the conventional end anchorages. View Full-Text
Keywords: newly proposed anchorage; concrete beam; ductility; energy ratio newly proposed anchorage; concrete beam; ductility; energy ratio
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hong, S.; Cho, D.; Park, S.-K. Application of a New Anchorage towards the Flexural Strengthening of RC Rectangular Beams with External Steel Tendons. Appl. Sci. 2016, 6, 119.

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