Measurements and simulation of temperature in a portal frame bridge

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Abstract

Since thermal loads can cause cracking, they are important to consider in bridge design. In order to evaluate and develop thermal load cases based on real simulations, models for simulating temperatures can be used. In this paper, a model for thermal simulation is used to simulate temperature in a portal frame bridge outside Lund, Sweden. The results are compared with temperature measurements in 13 locations in the same bridge, which were made during a 12-month period. The results show that although many important material parameters were unknown, the model could recreate both daily and seasonal temperature variations, although it tended to render temperatures about 1°C lower than the measurements, at least during summer. The model can be used in future work in determining thermal load values for the specific bridge type, assuming the model uncertainty is considered by e.g. adding 1°C to calculated load values.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Chalmers University of Technology
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Byggproduktion

Nyckelord

Originalspråkengelska
Titel på värdpublikationIABSE Symposium, Nantes 2018
Undertitel på gästpublikationTomorrow's Megastructures
FörlagInternational Association for Bridge and Structural Engineering (IABSE)
SidorS24-9-S24-16
ISBN (elektroniskt)9783857481611
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa
Evenemang40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures - Nantes, Frankrike
Varaktighet: 2018 sep 192018 sep 21

Konferens

Konferens40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures
LandFrankrike
OrtNantes
Period2018/09/192018/09/21

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