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Title |
Development and Performance Test for Unbonded Post-Tensioned Anchor
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Authors |
조아서(Ah Sir Cho) ; 조영욱(Yeong Wook Jo) ; 전병갑(Byong Kap Jeon) ; 강현구(Thomas H.-K. Kang) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.1.011 |
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Keywords |
정착구 ; 정착장치 ; 포스트텐션 ; 정하중 ; 하중전달 anchor ; anchorage ; post-tension ; static load ; load transfer |
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Abstract |
An unbonded post-tensioned anchor using a 15.2 mm diameter 7-wire strand was developed based on finite element analysis and experimental testing. In order to evaluate its performance, static load tests and load transfer tests were conducted following KCI-PS101. The static load tests and additional strand tensile tests confirmed that the developed anchor had a capacity more than nominal tensile strength of a 7-wire strand without any damage or deterioration. According to the result of load transfer tests for many different reinforcing details, specimens with no additional reinforcing bars sustained at least 1.64 times the nominal tensile strength of the strand.
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