Structural Engineering and Mechanics

  • 제33권5호
  • /
  • Pages.605-619
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  • 2009
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Numerical simulation of an external prestressing technique for prestressed concrete end block

  • Murthy, A. Rama Chandra (Structural Engineering Research Centre, CSIR, CSIR Campus) ;
  • Ganapathi, S. Chitra (Structural Engineering Research Centre, CSIR, CSIR Campus) ;
  • Saibabu, S. (Structural Engineering Research Centre, CSIR, CSIR Campus) ;
  • Lakshmanan, N. (Structural Engineering Research Centre, CSIR, CSIR Campus) ;
  • Jayaraman, R. (Structural Engineering Research Centre, CSIR, CSIR Campus) ;
  • Senthil, R. (Structural Engineering Department, Anna University)
  • 투고 : 2007.12.30
  • 심사 : 2009.09.26
  • 발행 : 2009.11.30
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents the details of finite element (FE) modeling and analysis of an external prestressing technique to strengthen a prestressed concrete (PSC) end block. Various methods of external prestressing techniques have been discussed. In the proposed technique, transfer of external force is in shear mode on the end block creating a complex stress distribution. The proposed technique is useful when the ends of the PSC girders are not accessible. Finite element modeling issues have been outlined. Brief description about material nonlinearity including key aspects in modeling inelastic behaviour has been provided. Finite element (FE) modeling including material, loading has been explained in depth. FE analysis for linear and nonlinear static analysis has been conducted for varying external loadings. Various responses such as out-of-plane deformation and slip have been computed and compared with the corresponding experimental observations. From the study, it has been observed that the computed slope and slip of the steel bracket under external loading is in good agreement with the corresponding experimental observations.

키워드

참고문헌

  1. ANSYS 6.0 Theory and Reference Manual, 2002
  2. Aparicio, A.C., Ramos, G. and Casas, J.R. (2000), 'Externally prestressed high strength concrete viaduct', J. Bridge Eng., 337-343 https://doi.org/10.1061/(ASCE)1084-0702(2000)5:4(337)
  3. Aparicio, A.C., Ramos, G. and Casas, J.R. (2002), 'Testing of externally prestressed concrete beams', Eng. Struct., 24, 73-84 https://doi.org/10.1016/S0141-0296(01)00062-1
  4. Bahaari, M.R. and Sherbourne, A.N. (2000), 'Behaviour of eight-bolt large capacity end plate connections', Comput. Struct., 77, 315-325 https://doi.org/10.1016/S0045-7949(99)00218-7
  5. Bursi, O.S. and Jaspart, J.P. (1997), 'Benchmarks for finite element modeling of bolted steel connections', J. Constr. Steel Res., 43, 17-42 https://doi.org/10.1016/S0143-974X(97)00031-X
  6. Bursi, O.S. and Jaspart, J.P. (1998), 'Basic issues in finite element simulation of extended and plate connections', Comput. Struct., 69, 361-382 https://doi.org/10.1016/S0045-7949(98)00136-9
  7. Chen, Shiming, Jia, Yuanlin and Wang, Xindi (2009), 'Experimental study of moment redistribution and load carrying capacity of externally prestressed continuous composite beams', Struct. Eng. Mech., 31(5), 605-619 https://doi.org/10.12989/sem.2009.31.5.605
  8. Fanning, P., Tucker, M. and Broderick, B.M. (2000), 'Non-linear finite element analysis of semi-rigid bolted end-plate connections', Proceedings of the Fifth International Conference on Computational Structures Technology, 397-403
  9. Haroyli, M.H. (1993), 'Strengthening of concrete beams by external prestressing', PCI J., 38(6), 76-88
  10. Jayaraman, R., Saibabu, S., Vivekanand, K. and Lakshmanan, N. (2007), Experimental Investigation on the Application of External Prestressing for Strengthening of Concrete Structures, SERC Research Report, PSCOLP 11141-RR-2007-1, Chennai, India
  11. Jung, J.W., Abolmaali, A. and Choi, Y. (2006), 'Finite element analysis of tapered steel', J. Bridge Eng., ASCE, 611-617
  12. Kim, J., Yoon, J.C. and Kang, B.S. (2007), 'Finite element analysis and modeling of structure with bolted joints', Appl. Math. Model., 31, 895-911 https://doi.org/10.1016/j.apm.2006.03.020
  13. Miyamoto, A., Tei, K., Nakamura, H. and Bull, J.W. (2000), 'Behavior of prestressed beam strengthened with external tendons', J. Struct. Eng., 1033-1044 https://doi.org/10.1061/(ASCE)0733-9445(2000)126:9(1033)
  14. Mukherjee, A. and Rai, G.L. (2009), 'Performance of reinforced concrete beams externally prestressed with fiber composites', Constr. Build. Mater., 23, 822-828 https://doi.org/10.1016/j.conbuildmat.2008.03.008
  15. Padmarajaiah, S.K. and Ramaswamy, Ananth (2002), 'A finite element assessment to flexural strength of prestressed concrete beams with fiber reinforcement', Cement Concrete Compos., 24, 229-241 https://doi.org/10.1016/S0958-9465(01)00040-3
  16. Stallings, J.M. and Hwarg, D.Y. (1992), 'Modelling pretensions in bolted connections', Comput Struct., 45(4), 801-803 https://doi.org/10.1016/0045-7949(92)90499-P
  17. Yang, J.G., Murray, T.M. and Plaut, R.H. (2000), 'Three-dimensional finite element analysis of double angle connections under tension and shear', J. Constr. Steel Res., 54, 227-244 https://doi.org/10.1016/S0143-974X(99)00048-6
  18. Ziomek, D., Tomana, A. and Waszczyszyn, Z. (1992), 'Finite element modeling of end plate connection versus experimental results', Proceedings of Semi-Rigid Behaviour of Civil Engineering Structural Connections- COST C1, Stras-bourg, 433-442
  19. Zona, A., Ragni, L. and Dall'Asta, A. (2008), 'Finite element formulation for geometric and material nonlinear analysis of beams prestressed with external slipping tendons', Finite Elem. Anal. Des., 44, 910-919 https://doi.org/10.1016/j.finel.2008.06.005

피인용 문헌

  1. Friction element for non-linear analysis of friction effect in externally prestressed beams vol.173, pp.3, 2020, https://doi.org/10.1680/jstbu.18.00040