Influence of Steam Curing on High-Cyclic Behaviour of Prestressed Concrete Bridge Elements

Authors

  • Eugedijus Juozas Dulinskas Dept of Bridges and Special Structures, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, Lithuania
  • Viktor Gribniak Dept of Bridges and Special Structures, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, Lithuania
  • Gintaris Kaklauskas Dept of Bridges and Special Structures, Vilnius Gediminas Technical University, Saulėtekio al. 11, 10223 Vilnius, Lithuania

DOI:

https://doi.org/10.3846/1822-427X.2008.3.115-120

Keywords:

curing conditions, fatigue testing, cyclic creep, prestressed concrete bridges

Abstract

The paper discusses the influence of curing conditions (steam and normal curing) on high-cyclic creep and fatigue strength of reinforced concrete bridge elements. The present analysis is based on experimental investigation performed by the first author: 46 plain concrete prisms and 13 prestressed concrete beams were subjected to the high-cycle loading (up to four million cycles). A comparative regression analysis of the fatigue strength of compressive concrete, in terms of a number of load cycles for given max stress level (S-N relationship) has been performed. The analysis has shown that curing conditions had no significant effect on the S-N relationship. On the contrary, curing conditions have significantly influenced the cyclic creep of compressive concrete. On average, the steam cured members had from 30 up to 80% larger deformations than the specimens cured under normal conditions. The difference was larger for higher numbers of loading cycles.

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Published

27.09.2008

How to Cite

Dulinskas, E. J., Gribniak, V., & Kaklauskas, G. (2008). Influence of Steam Curing on High-Cyclic Behaviour of Prestressed Concrete Bridge Elements. The Baltic Journal of Road and Bridge Engineering, 3(3), 115-120. https://doi.org/10.3846/1822-427X.2008.3.115-120