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Estimation of Extreme Climatic Thermal Actions in Concrete Structures

Larsson, Oskar LU (2010) 34th International Symposium on Bridge and Structural Engineering, Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas In IABSE Symposium Venice 2010 Report p.252-253
Abstract
The temperature distribution in concrete structures varies due to annual and daily climate variations. Solar radiation, air temperature, wind speed and long-wave radiation affect the temperature in the structure and may cause longitudinal and transversal movements. If these movements are restrained, stresses and strains can be induced which may contribute to cracking. To be able to predict the long-term effects and extreme thermal actions a finite element model has been developed. The model is used with global meteorological data to predict annual maxima of temperature gradients. The results show that the values in the Eurocode concerning the investigated region are underestimated for positive linear gradients. Values with a return period... (More)
The temperature distribution in concrete structures varies due to annual and daily climate variations. Solar radiation, air temperature, wind speed and long-wave radiation affect the temperature in the structure and may cause longitudinal and transversal movements. If these movements are restrained, stresses and strains can be induced which may contribute to cracking. To be able to predict the long-term effects and extreme thermal actions a finite element model has been developed. The model is used with global meteorological data to predict annual maxima of temperature gradients. The results show that the values in the Eurocode concerning the investigated region are underestimated for positive linear gradients. Values with a return period of 5 years are above the design values from Eurocode with a 50 year return period. The type of paving used has a significant effect on the results (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
thermal actions, concrete, FE-model, solar radiation, climate, KstrConcrete
in
IABSE Symposium Venice 2010 Report
pages
2 pages
publisher
IABSE-AIPC-IVBH
conference name
34th International Symposium on Bridge and Structural Engineering, Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas
external identifiers
  • Scopus:84928996477
ISBN
978-3-85748-122-2
language
English
LU publication?
yes
id
022f5963-e5d6-4009-a795-c9bed34425ca (old id 1693776)
date added to LUP
2010-10-20 14:10:14
date last changed
2016-10-13 04:44:44
@misc{022f5963-e5d6-4009-a795-c9bed34425ca,
  abstract     = {The temperature distribution in concrete structures varies due to annual and daily climate variations. Solar radiation, air temperature, wind speed and long-wave radiation affect the temperature in the structure and may cause longitudinal and transversal movements. If these movements are restrained, stresses and strains can be induced which may contribute to cracking. To be able to predict the long-term effects and extreme thermal actions a finite element model has been developed. The model is used with global meteorological data to predict annual maxima of temperature gradients. The results show that the values in the Eurocode concerning the investigated region are underestimated for positive linear gradients. Values with a return period of 5 years are above the design values from Eurocode with a 50 year return period. The type of paving used has a significant effect on the results},
  author       = {Larsson, Oskar},
  isbn         = {978-3-85748-122-2},
  keyword      = {thermal actions,concrete,FE-model,solar radiation,climate,KstrConcrete},
  language     = {eng},
  pages        = {252--253},
  publisher    = {ARRAY(0xb48a7d8)},
  series       = {IABSE Symposium Venice 2010 Report},
  title        = {Estimation of Extreme Climatic Thermal Actions in Concrete Structures},
  year         = {2010},
}