Half-PC 보와 현장타설 콘크리트의 경계면에 배근된 비인장 강연선의 부착응력-슬립 모델 및 정착길이
- Title
- Half-PC 보와 현장타설 콘크리트의 경계면에 배근된 비인장 강연선의 부착응력-슬립 모델 및 정착길이
- Other Titles
- Bond Stress-Slip Model and Development Length of Untensioned Wire Strand Placed on the Interface between Half-PC Beam and Topping Concrete
- Author
- 노삼영
- Keywords
- 비인장 강연선; 인발실험; 정착길이; 부착응력-슬립관계; Untensioned Wire Strand; Pull-Out Test; Development Length; Bond Stress-Slip Relationship
- Issue Date
- 2012-03
- Publisher
- 대한건축학회
- Citation
- 대한건축학회논문집 구조계, v. 28, NO. 03, Page. 3-14
- Abstract
- The purpose of this research is to obtain development length and bond slip relationship of the untensioned wire strand, applied to the precast concrete beam-column joint system developed recently. For this the pull-out tests were performed, in which the main test parameters are diameter of strands (9.3mm, 12.7mm, bundle), embedment length and distance from the precast concrete surface to the strand. A estimation equation of the development length was proposed based on test result. Herein 5% fractil value with 90% reliability was considered. The development length estimated by the proposed equation is comparable with that of the untensioned wire strand suggested in CEP-FIP Model Code 1990. Half-Precast concrete and topping concrete interface was proposed as an additional new bond condition for the strand location coefficient in the equation of MC-90. Additionally a bond stress-slip model was established by means of a numerical algorithm applying the strand strain obtained from the pullout tests mentioned above. The development length obtained by numerical analysis using this bond-slip model agrees with the test result.
- URI
- https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE01815992https://repository.hanyang.ac.kr/handle/20.500.11754/182996
- ISSN
- 1226-9107
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ETC
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