Advertisement

Experimental Mechanics

, Volume 50, Issue 5, pp 575–588 | Cite as

Testing of Prestressed Concrete Shell Under Long-Term Load and Unload

  • J. Radnić
  • D. MatešanEmail author
Article

Abstract

The results of experimental testing of a cylindrical prestressed concrete shell under long-term load and unload are given. The shell is reinforced by welded steel mesh in the top and bottom layers, with a different reinforcement area in the longitudinal and in the transversal directions, as well as by two straight prestressing tendons within the longitudinal sides. The shell is supported at corners only. Lateral displacements are disabled at the corner. The shell was prestressed first and then loaded by a permanent static load for a year. Then, the permanent load was removed. Shell defections as well as strains of concrete, reinforcement and tendons were measured at several points throughout a year and a half following the prestressing and loading.

Keywords

Experiment Prestressed concrete shell Long-term load Unload Creep Deflection Strain 

References

  1. 1.
    Corley WG, Sozen MA (1966) Time-dependent deflection of reinforced concrete beams. ACI J 63:373–386Google Scholar
  2. 2.
    Baskaran K, Morley CT (2004) A new approach to testing reinforced concrete flat slabs. Mag Concr Res 56:367–374. doi: 10.1680/macr.56.6.367.44598 Google Scholar
  3. 3.
    Gilbert RI, Guo XH (2005) Time-dependent deflection and deformation of reinforced concrete flat slabs—an experimental study. ACI Struct J 102:363–373Google Scholar
  4. 4.
    Radnic J, Matesan D (2008) Experimental testing of reinforced concrete slab behaviour under long-term load. MATWER 39:157–161. doi: 10.1002/mawe.200700261 Google Scholar
  5. 5.
    Hedgren AW, Billington DP (1967) Mortar model test on a cylindrical shell of varying curvature and thickness. ACI JGoogle Scholar
  6. 6.
    Hughes TJR, Liu WK (1981) Nonlinear finite element analysis of shells: Parts I and II: three dimensional and two dimensional shells. Comput Method Appl Mech Eng 26:331–362, 27:167–181Google Scholar
  7. 7.
    Bockhold J, Petryna YS (2008) Creep influence on buckling resistance of reinforced concrete shells. Comput Struct 86:702–713. doi: 10.1016/j.compstruc.2007.07.004 CrossRefGoogle Scholar
  8. 8.
    Bouma AL, Van Riel AC, Van Koten H, Beranek WJ (1961) Investigations on models of eleven cylindrical shells made of reinforced and prestressed concrete. Proc Symp Shell Res, Delft, AmsterdamGoogle Scholar
  9. 9.
    Figueiras JA, Povoas RHCF (1994) Modelling of prestress in non-linear analysis of concrete structures. Comput Struct 53:173–187. doi: 10.1016/0045-7949(94) 90140-6 zbMATHCrossRefGoogle Scholar
  10. 10.
    Hofstetter G, Mang HA (1989) Collapse load analysis of prestressed concrete surface structures with unbonded tendons by the finite element method. Finite Elem Anal Des 5:141–165. doi: 10.1016/0168-874X(89) 90019-X zbMATHCrossRefGoogle Scholar
  11. 11.
    Hofstetter G, Mang HA (1995) Computational mechanics of reinforced concrete structures. Vieweg, WeisbadenzbMATHGoogle Scholar
  12. 12.
    Lin CS, Scordelis AC (1975) Nonlinear analysis of RC shells of general form. J Struct Div 101:523–538Google Scholar
  13. 13.
    Roca P, Mari AR (1993) Nonlinear geometric and material analysis of prestressed concrete general shell structures. J Comput Struct 46:917–929. doi: 10.1016/0045-7949(93) 90153-5 zbMATHCrossRefGoogle Scholar
  14. 14.
    Roca P, Mari AR (1993) Numerical treatment of prestressing tendons in the nonlinear analysis of prestressed concrete structures. J Comput Struct 46:905–916. doi: 10.1016/0045-7949(93) 90152-4 zbMATHCrossRefGoogle Scholar
  15. 15.
    Scordelis AC (1983) Analytical models for nonlinear material, geometric and time-dependent effects. Int Symp Nonlinear Contin Prestress Concr (Edited by M. Z. Cohn) 2:25–43Google Scholar
  16. 16.
    Scordelis AC (1984) Computer models for nonlinear analysis of reinforced and prestressed concrete structures. PC1 J 29Google Scholar
  17. 17.
    Matesan D (2007) Time-dependent analysis of prestressed concrete shells. Ph.D.Thes, University of SplitGoogle Scholar

Copyright information

© Society for Experimental Mechanics 2009

Authors and Affiliations

  1. 1.Faculty of Civil Engineering and ArchitectureUniversity of SplitSplitCroatia

Personalised recommendations