Open AccessExperimental Research on Temperature Field of Large Diameter Concrete-Filled Steel Tube Section
Author(s) -
Dianyuan Liu,
Tiedong Qi
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/510/5/052045
Subject(s) - core (optical fiber) , tube (container) , materials science , cross section (physics) , section (typography) , field (mathematics) , sunlight , structural engineering , finite element method , geotechnical engineering , composite material , geology , engineering , optics , physics , mathematics , quantum mechanics , advertising , pure mathematics , business
In order to research the influence of solar radiation on temperature field of large diameter concrete-filled steel tube (CFST) section, the field test of temperature field of CFST section was carried out based on the reconstruction project of Huaihe River Bridge in Xi County, Xinyang City, Henan Province. For the asymmetric temperature distribution of concrete-filled steel tube sections caused by sunlight, considering the environmental factors and the actual position, temperature field of CFST section under sunshine was analyzed by finite element method, and the results are compared with the field test results to verify the reliability of the model. The analysis results show that the non-uniform distribution of the CFST with large diameter appears due to the sunlight effect; the larger the size of core concrete, the slower the change of central temperature, and the greater the temperature difference between the core and the boundary. Therefore, the influence of sunshine effect should be considered in the actual engineering.