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http://dx.doi.org/10.9712/KASS.2020.20.1.41

Experimental Analysis of Anchorage Zone Design for Unbonded Post-Tensioned Concrete Beam With 2400MPa Single Tendons  

Moon, Sang Pil (Architecture Engineering, Kyung Hee Univ.)
Ro, Kyong Min (Architecture Engineering, Kyung Hee Univ.)
Kim, Min Sook (Architecture Engineering, Kyung Hee Univ.)
Lee, Young Hak (Architecture Engineering, Kyung Hee Univ.)
Publication Information
Journal of Korean Association for Spatial Structures / v.20, no.1, 2020 , pp. 41-48 More about this Journal
Abstract
In this study, the design of anchorage zone for unbonded post-tensioned concrete beam with single tendons of ultimate strength 2400MPa was evaluated to verify that the KDS 14 20 60(2016) and KHBDC 2010 codes are applicable. The experimental results showed that the bursting force equation of current design codes underestimated bursting stress measured by test, because the KDS 14 20 60(2016) and KHBDC 2010 propose the location of the maximum bursting force 0.5h which is the half of the height of member regardless of stress contribution. Although the allowable bearing force calculated by current design codes was not satisfied the prestressing force, the cracks and failure in anchorage zone was not observed due to the strengthening effect of anchorage zone reinforcement.
Keywords
Bursting force; Bearing force; Post-tensioning; Anchorage zone; High-strength tendon;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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2 KHBDC Code, Korean Highway Bridge Design Code, Ministry of Land, Transport and Maritime Affairs, 2010.
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