Log In    |    Join IASS    |    Online Journal    |    Proceedings    |    Directory    |    Events    |    News

On-line Journal of the IASS

Vol. 57 (2016) No. 1 March n. 187


Numerical Analysis of Concrete Cracking in Shell Structures Due to Restraining Stresses in Early Age Concrete

< Table of Contents for Vol. 57 (2016) No. 1 March n. 187
  • Journal Name: Journal of the International Association for Shell and Spatial Structures (J. IASS)
  • ISSN: (Electronic Version) 1996-9015
  • ISSN: (Print Version) 1028-365X
  • Issue: Vol. 57 (2016) No. 1 March n. 187
  • Pages: 83-90
  • Title: Numerical Analysis of Concrete Cracking in Shell Structures Due to Restraining Stresses in Early Age Concrete
  • Author(s): J. Bockhold, T. Putke and T. Vossen
  • DOI Name: http://dx.doi.org/10.20898/j.iass.2016.187.773
  • Keywords: Cooling Tower Shells, Concrete Hydration, Cracking, Minimum Reinforcement
Abstract
Restraining stresses resulting from concrete hydration in thin reinforced concrete shells have a major influence on the required minimum reinforcement. Reinforcement design of these structures for the limitation of concrete cracks follows generally simplified rules and assumptions. This often results in an uneconomical amount of reinforcement. This paper presents results of recent research in the analysis of concrete cracking due to restraining stresses in natural draught cooling tower shells, which occur during the hydration process. Based on linear and nonlinear numerical simulations a realistic and economically reasonable approach for minimum reinforcement requirements in these structures is derived.

Read the complete article (pdf) (requires membership or subscription)
© IASS All rights reserved.
IASS · CEDEX - Laboratorio Central de Estructuras y Materiales · C/ Alfonso XII, 3 · 28014 Madrid, Spain     tel. 34 91 335-7409; fax: 335-7422
Site Design & Programming
by World Design Group, Inc.