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Estimation of Extreme Climatic Thermal Actions in Concrete Structures

In English

Författare

Summary, in English

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

Publiceringsår

2010

Språk

Engelska

Sidor

252-253

Publikation/Tidskrift/Serie

IABSE Symposium Venice 2010 Report

Dokumenttyp

Konferensbidrag

Förlag

IABSE-AIPC-IVBH

Ämne

  • Building Technologies

Nyckelord

  • thermal actions
  • concrete
  • FE-model
  • solar radiation
  • climate
  • KstrConcrete

Conference name

34th International Symposium on Bridge and Structural Engineering, Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas

Conference date

2010-09-23

Conference place

Venice, Italy

Status

Published

ISBN/ISSN/Övrigt

  • ISBN: 978-3-85748-122-2