Original title: Impact of Non-Uniform Distribution of Temperature on the State of Stress of Masonry
Authors: Beran, Pavel
Document type: Papers
Conference/Event: Historic mortars conference /2./, Praha (CZ), 2010-09-22 / 2010-09-24
Year: 2010
Language: eng
Abstract: Deterioration of masonry is caused by inordinate loading and by climatic actions. Climatic cyclic thermal stress in a structure is incurred by unequal temperature gradient across the thickness of homogenous or heterogeneous masonry. Thermal gradient also causes significant stress close to the interface between stone and mortar in masonry made of components with different thermal expansion properties. The values of thermal stress increase with higher thermal gradient. Impact of insolation, absorption of solar radiation, air temperature around the structure, heat transfer coefficient, coefficient of heat conduction, and heat capacity to the temperature gradient in the wall exposed to the exterior weather conditions were investigated with a numerical model. All of these effects or material properties affect the maximal surface temperatures in masonry during summer.
Keywords: heat transfer; material characteristic; material compatibility
Project no.: CEZ:AV0Z20710524 (CEP), GA103/07/1467 (CEP)
Funding provider: GA ČR
Host item entry: 2nd Historic Mortars Conference, ISBN 978-2-35158-112-4

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0190855

Permalink: http://www.nusl.cz/ntk/nusl-42088


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
Conference materials > Papers