Autogenous deformation is the main driving force for internal deformations in ultra-high performance fibre-reinforced concretes (UHPFRC). Experimental results of free and restrained shrinkage tests, described in part I of the current paper, are used to simulate the time-dependent behaviour of structural elements made of UHPFRC and normal-strength concrete (NSC). The validation of a numerical model is performed with experimental results of composite UHPFRC–concrete elements. The influence of the magnitude of UHPFRC autogenous shrinkage on deformations, stresses and crack formation in structural elements is determined in a parametric study. It is demonstrated that there are no excessive deformations and no crack formation in structural elements for magnitudes of autogenous shrinkage at 28 days below 1000 μm/m, that is, a value more than two times higher than that measured for the investigated UHPFRC.
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April 2006
Research Article|
April 01 2006
Autogenous deformations and viscoelasticity of UHPFRC in structures. Part II: numerical modelling
K. Habel;
K. Habel
*
Maintenance and Safety of Structures, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Station 18, GC B2·402, CH-1015 Lausanne, Switzerland
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J.-P. Charron;
J.-P. Charron
†
Ecole Polytechnique de Montréal
Case Postale 6079, Montréal, Québec, H3C 3A7 Canada
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E. Denarié;
E. Denarié
*
Maintenance and Safety of Structures, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Station 18, GC B2·402, CH-1015 Lausanne, Switzerland
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E. Brühwiler
E. Brühwiler
*
Maintenance and Safety of Structures, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Station 18, GC B2·402, CH-1015 Lausanne, Switzerland
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Publisher: Emerald Publishing
Received:
December 20 2004
Revision Received:
August 03 2005
Accepted:
December 06 2005
Online ISSN: 1751-763X
Print ISSN: 0024-9831
© 2006 Thomas Telford Ltd
2006
Magazine of Concrete Research (2006) 58 (3): 147–156.
Article history
Received:
December 20 2004
Revision Received:
August 03 2005
Accepted:
December 06 2005
Citation
Habel K, Charron J, Denarié E, Brühwiler E (2006), "Autogenous deformations and viscoelasticity of UHPFRC in structures. Part II: numerical modelling". Magazine of Concrete Research, Vol. 58 No. 3 pp. 147–156, doi: https://doi.org/10.1680/macr.2006.58.3.147
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