MATEC Web Conf.
Volume 116, 20176th International Scientific Conference “Reliability and Durability of Railway Transport Engineering Structures and Buildings” (Transbud-2017)
|Number of page(s)||5|
|Section||Structures, Buildings and Facilities|
|Published online||10 July 2017|
Computational study of bearing walls fire resistance tests efficiency using different combustion furnaces configurations
Cherkassy Institute of Fire Safety named after Chernobyl Heroes National University of Civil Protection of Ukraine, 18000 Cherkassy, Ukraine
* Corresponding author: email@example.com
Imperfection of structure, metrological instruments and fuel and nozzle system control methods the conditions are created ensuring non-homogeneous distribution of temperatures throughout heated surfaces of tested structures and during their fire-resistance tests in combustion furnaces. The article contains results of numerical simulation of bearing walls fire resistance test performed using different configurations of combustion furnaces. Using computer-assisted gas and liquid flow simulating software temperature gradient for heated surfaces of bearing walls was created and temperature distribution for every minute of the computational experiment for each configuration was calculated. In temperature gradients 6000 to 7500 cells were located (depending on the particular configuration design), evenly distributed throughout the structure surfaces, containing temperature data in any moment during the computational experiment. As a result of processing of these data the value of temperature dispersion value was calculated. Difference between maximum and minimum temperatures on the surface of a reinforced concrete was also determined. Based on the curves representing temperature dispersion values at the surface of each of the simulated structures of the furnace chamber for every minute of the computational experiment the configuration with the most homogeneous temperature distribution throughout the heated surfaces of the bearing wall was defined, what allows reducing an error occurring due to temperature distribution non-homogeneity by heated surface structures during the fire resistance test.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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