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Modeling of Temperature Profiles in a Concrete Slab under Climatic Exposure

Larsson, Oskar LU (2009) In Structural Concrete 10(4). p.193-201
Abstract
Effects of surrounding climate give temperature variations in both time and space for concrete structures. The associated thermal strains may give rise to stresses and cracking due to external or internal restraint. This will affect the performance of the structure. It is therefore important to analyze the temperature variations and the extreme situations that can occur. To predict the dynamic thermal conditions in concrete structures a finite element model has been developed. The ability of the model to describe various boundary conditions such as solar radiation, outgoing long-wave radiation and convection correctly is investigated in this paper. Field temperature measurements in a concrete slab placed outdoor are used for the... (More)
Effects of surrounding climate give temperature variations in both time and space for concrete structures. The associated thermal strains may give rise to stresses and cracking due to external or internal restraint. This will affect the performance of the structure. It is therefore important to analyze the temperature variations and the extreme situations that can occur. To predict the dynamic thermal conditions in concrete structures a finite element model has been developed. The ability of the model to describe various boundary conditions such as solar radiation, outgoing long-wave radiation and convection correctly is investigated in this paper. Field temperature measurements in a concrete slab placed outdoor are used for the validation. The necessary climatic input data for the model were obtained from measurements in the vicinity of the slab. The results show that the model can describe the effects from different climatic factors in extreme situations with good accuracy and is well suited to use in further studies. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
solar radiation, concrete, Thermal actions, KstrConcrete
in
Structural Concrete
volume
10
issue
4
pages
193 - 201
publisher
Thomas Telford
external identifiers
  • wos:000281641100005
  • scopus:77949722548
ISSN
1751-7648
DOI
10.1680/stco.2009.10.4.193
language
English
LU publication?
yes
id
3f08ed5f-a3ed-4fa3-84e0-2623c4c322f9 (old id 1599918)
date added to LUP
2010-05-06 16:37:51
date last changed
2017-05-28 03:31:48
@article{3f08ed5f-a3ed-4fa3-84e0-2623c4c322f9,
  abstract     = {Effects of surrounding climate give temperature variations in both time and space for concrete structures. The associated thermal strains may give rise to stresses and cracking due to external or internal restraint. This will affect the performance of the structure. It is therefore important to analyze the temperature variations and the extreme situations that can occur. To predict the dynamic thermal conditions in concrete structures a finite element model has been developed. The ability of the model to describe various boundary conditions such as solar radiation, outgoing long-wave radiation and convection correctly is investigated in this paper. Field temperature measurements in a concrete slab placed outdoor are used for the validation. The necessary climatic input data for the model were obtained from measurements in the vicinity of the slab. The results show that the model can describe the effects from different climatic factors in extreme situations with good accuracy and is well suited to use in further studies.},
  author       = {Larsson, Oskar},
  issn         = {1751-7648},
  keyword      = {solar radiation,concrete,Thermal actions,KstrConcrete},
  language     = {eng},
  number       = {4},
  pages        = {193--201},
  publisher    = {Thomas Telford},
  series       = {Structural Concrete},
  title        = {Modeling of Temperature Profiles in a Concrete Slab under Climatic Exposure},
  url          = {http://dx.doi.org/10.1680/stco.2009.10.4.193},
  volume       = {10},
  year         = {2009},
}