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Title |
The Load Transfer Performance of Post-tension Anchorage with 2,400 MPa Strands
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Authors |
김선우(Sun-Woo Kim) ; 노병철(Byeong-Cheol Lho) ; 임정훈(Jung-Hoon Lim) |
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DOI |
https://doi.org/10.11112/jksmi.2018.22.6.063 |
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Keywords |
2 ; 400 MPa 강연선 ; 2 ; 400 MPa 정착구 ; 포스트텐션 정착구 ; 하중전달시험 ; 3차원 비선형 해석 2 ; 400 MPa strands ; 2 ; 400 MPa anchorage ; Post-tension anchorage ; Load transfer test ; 3D nonlinear analysis |
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Abstract |
Strands with ultimate strength of 2,400 MPa was developed and applied in the KCI Code and the KS standard. A high-strength prestressed strand to be applied to a structure, a suitable anchorage system should be used together. Recently, a post tension anchorage for 2,400 MPa strands was developed. but there is not much research on performance evaluation. Therefore, in this study, structural analysis of local zone with 9 strands, 15 strands, and 19 strands anchorage were investigated respectively, which are most widely used for post tensioning anchorages with 2,400 MPa strands, according to PTI anchorage zone design method, and Load transfer performance from ETAG013 and/or KCI-PS101 was evaluated. Furthermore, the adequacy of the test was also analyzed by nonlinear numerical analysis. As results, the anchorages with 2,400 MPa strands satisfied the structural performance of the local area and satisfied the load transfer performance condition.
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