Journal
OPEN ENGINEERING
Volume 4, Issue 3, Pages 210-225Publisher
DE GRUYTER OPEN LTD
DOI: 10.2478/s13531-013-0159-9
Keywords
Slabs on ground; Concentrated load; Experiment; Numerical; Cracking; Failure; Shrinkage; Subgrade stiffness
Categories
Funding
- The Norwegian Concrete Association (Norsk Betongforening)
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An experimental program is presented where a slab on ground is subjected to concentrated loading at the centre, the edges and at the corners. Analytical solutions for the ultimate load capacity fit well with the results obtained in the tests. The non-linear behaviour of the slab is captured by performing nonlinear finite element analyses. The soil is modelled as a no-tension bedding and a smeared crack approach is employed for the concrete. Through a parametric study, the finite element model has been used to assess the influence of subgrade stiffness and shrinkage. The results indicate that drying shrinkage can cause severe cracking in slabs on grade.
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