DOI QR코드

DOI QR Code

Torsion strength of single-box multi-cell concrete box girder subjected to combined action of shear and torsion

  • Wang, Qian (Faculty of Infrastructure Engineering, Bridge Science Research Institute, Dalian University of Technology) ;
  • Qiu, Wenliang (Faculty of Infrastructure Engineering, Bridge Science Research Institute, Dalian University of Technology) ;
  • Zhang, Zhe (Faculty of Infrastructure Engineering, Bridge Science Research Institute, Dalian University of Technology)
  • 투고 : 2015.01.26
  • 심사 : 2015.06.22
  • 발행 : 2015.09.10

초록

A model has been proposed that can predict the ultimate torsional strength of single-box multi-cell reinforced concrete box girder under combined loading of bending, shear and torsion. Compared with the single-cell box girder, this model takes the influence of inner webs on the distribution of shear flow into account. According to the softening truss theory and thin walled tube theory, a failure criterion is presented and a ultimate torsional strength calculating procedure is established for single-box multi-cell reinforced concrete box girder under combined actions, which considers the effect of tensile stress among the concrete cracks, Mohr stress compatibility and the softened constitutive law of concrete. In this paper the computer program is also compiled to speed up the calculation. The model has been validated by comparing the predicted and experimental members loaded under torsion combined with different ratios of bending and shear. The theoretical torsional strength was in good agreement with the experimental results.

키워드

과제정보

연구 과제 주관 기관 : Liaoning Education Department of China, National Natural Science Foundation of China

참고문헌

  1. Akhtaruzzaman, A.A. and Wafa, F.F. (1989), "Prestressed concrete beams with opening under torsion and bending", J. Struct. Eng., 115(11), 2727-2739. https://doi.org/10.1061/(ASCE)0733-9445(1989)115:11(2727)
  2. American Concrete Institute (ACI) Committee (2005), Building code requirements for reinforced concrete and commentary, ACI 318R-05, Detroit.
  3. Collins, M.P. (1972), "Inelasticity and non-linearity in structural concrete", Master Dissertation, University of Waterloo Press, Waterloo, Ontario, Canada.
  4. Collins, M.P. and Mitchell, D. (1991), Prestressed Concrete Structures, Prentice Hall, Englewood Cliffs, New Jersey, USA.
  5. Collins, M.P., Mitchell, D., Adebar, P. and Vecchio, F.J. (1996), "A general shear design method", ACI Struct. J., 93(1), 36-45.
  6. Elfgren, L., Karlsson, I. and Losberg, A. (1974), "Torsion-bending-shear interaction for concrete beams", J. Struct. Div., 100(8), 1657-1676
  7. European Committee for Standardization (2002), Eurocode 2: Design of concrete structures, CEN, Brussels.
  8. Fuad, O. and Serkan, E. (2012), "Torsional behavior of steel reinforced concrete beams", Construct. Build. Mater., 28(1), 269-275. https://doi.org/10.1016/j.conbuildmat.2011.08.062
  9. Greene, G. and Belarbi, A. (2006), "Softened truss model for RC torsional members under combined action", Proceedings of the Structures Congress and Exposition, Reston, United States, August.
  10. Greene, G. and Belarbi, A. (2009), "Model for reinforced concrete members under torsion, bending, and shear.I: Theory", J. Eng. Mech., 135(9), 961-969. https://doi.org/10.1061/(ASCE)0733-9399(2009)135:9(961)
  11. Greene, G. and Belarbi, A. (2009), "Model for reinforced concrete members under torsion, bending, and shear.II: Model application and validation", J. Eng. Mech., 135(9), 970-977. https://doi.org/10.1061/(ASCE)0733-9399(2009)135:9(970)
  12. Hsu, T.T.C. (1988), "Softened truss model theory for shear and torsion", ACI Struct. J., 85(6), 624-635.
  13. Hsu, T.T.C. (1998), "Stress and crack angles in concrete membrane elements", J. Struct. Eng., 124(12), 1476-1484. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:12(1476)
  14. Huang, Z. and Liu, X.L. (2006), "Modified skew bending model for segmental bridge with unbonded tendons", J. Bridge Eng., 11(1), 59-63. https://doi.org/10.1061/(ASCE)1084-0702(2006)11:1(59)
  15. Husem, M., Oztikin, E. and Pul, S. (2011), "A calculation method of cracking moment for the high strength concrete beams under pure torsion", Sadhana - Academy Proceedings in Engineering Sciences, 36(1), 1-15.
  16. Ju, H., Lee, D.H., Hwang, J.H., Kang, J.W., Kim, K.S. and Oh, Y.H. (2013), "Torsional behavior model of steel-fiber-reinforced concrete members modifying fixed-angle softened-truss model", Compos. Part B: Eng., 45(1), 215-231. https://doi.org/10.1016/j.compositesb.2012.09.021
  17. Ministry of Transport of the People's Republic of China (MOT) (2004), Code for design of highway reinforced concrete and prestressed concrete bridges and culverts, JTG D62-2004, Beijing.
  18. Mullapudi, T.R. and Ayoub, A. (2009), "Fiber model analysis of RC elements subjected to torsion", Structure Congress, Austin, Texas, May.
  19. Nilson, A.H. (1985), "Design implications of current research on high strength concrete", High Strength Concrete, (ACI SP-87), 85-118.
  20. Popov, E.P. (1990), Engineering Mechanics of Solids, Prentice-Hall, Upper Saddler River, New Jersey.
  21. Rahal K.N. and Collins, M.P. (1995), "Analysis of sections subjected to combined shear and torsion-a theoretical model", ACI J., 92(4), 459-469.
  22. Vecchio, F.J. and Collins, M.P. (1986), "The modified compression-field theory for reinforced concrete elements subjected to shear", ACI J. Proc., 183(2), 219-231.
  23. Wang, Q. (2011), "Orthotropic steel cantilever widening method of concrete box girder", J. Int. Assoc. Bridge Struct. Eng., IABSE, 21(2), 228-232.
  24. Wang, W. and Hsu, T.T.C. (1997), "Limit analysis of reinforced concrete beams subjected to pure torsion", J. Struct. Eng., 123(1), 86-94. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:1(86)
  25. Xu, Y.Q. (2000), "Calculating method and experimental study of torsion strength of concrete box beams under combing loading", China J. Highw. Tran., 13(3), 36-40.
  26. Yi, J.W. (2012), Experiment and Theory Research on Concrete Structure, Science Press, Beijing, China.

피인용 문헌

  1. Experimental and Analytical Studies of U-Shaped Thin-Walled RC Beams Under Combined Actions of Torsion, Flexure and Shear vol.12, pp.1, 2018, https://doi.org/10.1186/s40069-018-0245-8
  2. Effective torsional strength of axially restricted RC beams vol.67, pp.5, 2015, https://doi.org/10.12989/sem.2018.67.5.465
  3. A unified approach to shear and torsion in reinforced concrete vol.77, pp.5, 2021, https://doi.org/10.12989/sem.2021.77.5.691