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Transversal Climatic Thermal Stresses in Concrete Box Cross-sections

Larsson, Oskar LU (2011) IABSE-IASS Symposium: Taller, Longer, Lighter In IABSE-IASS 2011 London Symposium Report
Abstract
The thermal stresses in a concrete bridge are affected by the surrounding climate. Varying temperature will produce movements which, if restrained, may induce stresses in the structure. To predict the thermal stresses due to climatic effects in concrete box cross-sections, FE simulations have been performed with extensive climatic input data to simulate the temperature and resulting stress fields in the hollow concrete arch of the New Svinesund Bridge. A linear temperature difference approach may overestimate the thermal tension stresses on the inside surface of the walls. Varying thickness between the walls will give more unfavourable stresses than identical wall thicknesses. The cross-sectional height and width together with orientation... (More)
The thermal stresses in a concrete bridge are affected by the surrounding climate. Varying temperature will produce movements which, if restrained, may induce stresses in the structure. To predict the thermal stresses due to climatic effects in concrete box cross-sections, FE simulations have been performed with extensive climatic input data to simulate the temperature and resulting stress fields in the hollow concrete arch of the New Svinesund Bridge. A linear temperature difference approach may overestimate the thermal tension stresses on the inside surface of the walls. Varying thickness between the walls will give more unfavourable stresses than identical wall thicknesses. The cross-sectional height and width together with orientation of the bridge are of less importance concerning thermal stresses. (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 data, KstrConcrete
in
IABSE-IASS 2011 London Symposium Report
editor
IASS, IABSE
pages
8 pages
conference name
IABSE-IASS Symposium: Taller, Longer, Lighter
language
English
LU publication?
yes
id
c0d18383-f37c-4962-a6ed-35c4213009ec (old id 2187506)
date added to LUP
2011-10-24 11:35:19
date last changed
2016-04-16 10:55:05
@misc{c0d18383-f37c-4962-a6ed-35c4213009ec,
  abstract     = {The thermal stresses in a concrete bridge are affected by the surrounding climate. Varying temperature will produce movements which, if restrained, may induce stresses in the structure. To predict the thermal stresses due to climatic effects in concrete box cross-sections, FE simulations have been performed with extensive climatic input data to simulate the temperature and resulting stress fields in the hollow concrete arch of the New Svinesund Bridge. A linear temperature difference approach may overestimate the thermal tension stresses on the inside surface of the walls. Varying thickness between the walls will give more unfavourable stresses than identical wall thicknesses. The cross-sectional height and width together with orientation of the bridge are of less importance concerning thermal stresses.},
  author       = {Larsson, Oskar},
  editor       = {IASS, IABSE},
  keyword      = {thermal actions,concrete,FE-model,solar radiation,climate data,KstrConcrete},
  language     = {eng},
  pages        = {8},
  series       = {IABSE-IASS 2011 London Symposium Report},
  title        = {Transversal Climatic Thermal Stresses in Concrete Box Cross-sections},
  year         = {2011},
}