Compatibility Thermal Dilatation Limits of the Repair Material of the Historic Masonry

0367778 - ÚTAM 2012 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Beran, Pavel - Drdácký, Miloš
Compatibility Thermal Dilatation Limits of the Repair Material of the Historic Masonry.
13th International conference on civil , structural and environmental engineering computing. Stirlingshire: Civil-Comp Press, 2011 - (Topping, B.), s. 321-339. ISBN 978-1-905088-45-4.
[International conference on civil, structural and environmental engineering computing /13./. Cania - Kréta (GR), 06.09.2011-09.09.2011]
Grant CEP: GA ČR(CZ) GA103/09/2067
Výzkumný záměr: CEZ:AV0Z20710524
Klíčová slova: material characteristics * thermal expansion * ledge * thermal stress
Kód oboru RIV: JN - Stavebnictví

The effects of deterioration and spalling of the original material from the surface of structure or stone monuments on its behaviour and on damage processes have been investigated in various studies, mostly in relation to the moisture freezing cycles. This paper presents an analysis of the stresses in the ledge of the historic masonry model due to variations of temperature of the stone / artificial stone systems. It is clearly shown that temperature fluctuation effects can generate significant stresses in the interface layers in contact between stones and artificial stone. The thermal expansion analysis is modelled by a 3-D finite element model. In this paper is also shown complex overview of the problem of different thermal expansion of the repair and original material. The state of stress in particular geometrically different cases is confronted.
Trvalý link: http://hdl.handle.net/11104/0202331