Structural Engineering and Mechanics

  • 제27권1호
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  • Pages.63-75
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  • 2007
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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Comparison of code provisions on lap splices

  • Canbay, Erdem (Department of Civil Engineering, Middle East Technical University)
  • 투고 : 2006.06.28
  • 심사 : 2007.04.10
  • 발행 : 2007.09.10
⟨ 이전 논문 다음 논문 ⟩

초록

The code provisions on lap splices are critically assessed in the light of 203 beams without transverse reinforcement and 278 beams with transverse reinforcement. For comparison, the provisions given in the ACI 318, Eurocode 2, and TS 500 Codes are considered. The ACI Committee 408 recommended provision and a new proposal are also taken into account throughout the assessment. The comparison with real beam tests where the splice region was subjected to constant moment indicates that current provisions in the Codes do not agree acceptably with test results. The steel stress prediction graphs calculated by means of the Code provisions show high scatter and remain unsafe especially for test data without transverse reinforcement. Both the recent recommended provision by ACI Committee 408 and a new design expression proposed by the author have much less scatter with fewer unsafe predictions. The simplified design provision proposed by ACI Committee 408 does not yield similar results to that of the advanced design provision proposed by the same committee and therefore it could conveniently be replaced with the simpler equation proposed by the author.

키워드

참고문헌

  1. ACI Committee 318 (2005), Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary (ACI 318R-05), American Concrete Institute, Farmington Hills, MI
  2. ACI Committee 408 (2003), Bond and Development of Straight Reinforcing Bars in Tension (ACI 408R-03), American Concrete Institute, Farmington Hills, MI
  3. Azizinamini, A., Darwin, D., Eligehausen, R., Pavel, R. and Ghosh, S.K. (1999), 'Proposed midifications to ACI 318-95 tension development and lap splice for high-strength concrete', ACI Struct. J., 96(6), 922-926
  4. Canbay, E. and Frosch, R.J. (2005), 'Bond strength of lap-spliced bars', ACI Struct. J., 102(4), 605-614
  5. Canbay, E. and Frosch, R.J. (2006), 'Design of lap-spliced bars: Is simplification possible?', ACI Struct. J., 103(3), 443-451
  6. Darwin, D., Lutz, L.A. and Zuo, J. (2005), 'Recommended provisions and commentary on development and lap splice lengths for deformed reinforcing bars in tension', ACI Struct. J., 102(6), 892-900
  7. Lutz, L.A., Mirza, S.A. and Gosain, N.K. (1993), 'Changes to and applications of development and lap splice length provisions for bars in tension (ACI 318-89)', ACI Struct. J., 90(4), 393-406
  8. Orangun, C.O., Jirsa, J.O. and Breen, J.E. (1975), The Strength of Anchored Bars: A Reevaluation of Test Data on Development Length and Splices, Research Report No. 154-3F, Center for Highway Research, The University of Texas at Austin
  9. Orangun, C.O., Jirsa, J.O. and Breen, J.E. (1977), 'A reevaluation of test data on development length and splices', ACI J., 74(3), 114-122
  10. Pacholka, K., Rezansoff, T. and Sparling, B.F. (1999), 'Stirrup distribution across the beam width in tension lap splices', Can. J. Civil Eng., 26, 83-95 https://doi.org/10.1139/cjce-26-1-83
  11. PrEN 1992-1-1 (2003), Eurocode 2: Design of Concrete Structures - Part 1-1: General Rules and Rules for Buildings, European Committee for Standardization, Brussels
  12. Rezansoff, T., Akanni, A. and Sparling B. (1993), 'Tensile lap splices under static loading: A review of the proposed ACI 318 code provisions', ACI Struct. J, 90(4), 374-384
  13. Rezansoff, T. and Sparling, B.F. (1995), 'Correlation of the bond provisions of CSA A23.3-94 with tests on tension lap splices in beams', Can. J. Civil Eng., 22, 755-769 https://doi.org/10.1139/l95-086
  14. Turkish Standards TS 500 (2000), Requirements for Design and Construction of Reinforced Concrete Structures, Turkish Standard Institute, Ankara, Turkey
  15. Zuo, J. and Darwin, D. (1998), Bond Strength of High Relative Rib Area Reinforcing Bars, SM Report No. 46, University of Kansas Center for Research, Lawrence, Kansas
  16. Zuo, J. and Darwin, D. (2000), 'Splice strength of conventional and high relative rib area bars in normal and high-strength concrete', ACI Struct. J., 97(4), 630-641

피인용 문헌

  1. Evaluation of tension lap splices for code provisions vol.165, pp.8, 2012, https://doi.org/10.1680/stbu.10.00065