Next Article in Journal
A Prototype of a Portable Gas Analyzer for Exhaled Acetone Detection
Previous Article in Journal
Characterisation of the Material and Mechanical Properties of Atomic Force Microscope Cantilevers with a Plan-View Trapezoidal Geometry
Article

Influence of the Thermal Insulation Type and Thickness on the Structure Mechanical Response Under Fire Conditions

Faculty of Civil Engineering and Architecture, Kielce University of Technology, 25-314 Kielce, Poland
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(13), 2606; https://doi.org/10.3390/app9132606
Received: 15 May 2019 / Revised: 22 June 2019 / Accepted: 23 June 2019 / Published: 27 June 2019
(This article belongs to the Section Civil Engineering)
The concept of fire safety covers an extremely vast scope of issues. To ensure an adequate fire safety level, it is necessary to combine research and actions in several fields, such as the mathematical, physical, or numerical modelling of a fire phenomenon. Another problem is to design different types of fire protection, including alarm systems, sprinkler systems, and also roads and evacuation systems, in a manner that ensures maximum safety for the building’s users. A vital issue is the analysis of the static-strength response of the structure under fire conditions. This study, concerned with such analyses, is limited to steel truss structures. In technical approvals, manufacturers of fire-proofing materials do not account for the character of the performance of individual structural members. The components in compression need thicker insulation than those in tension. This phenomenon is related to the fact that under fire conditions, the flexural buckling coefficient in compressed members is abruptly reduced with an increase in temperature. In turn, this increase in temperature leads to a fast reduction in resistance. In addition, members in tension have much higher resistance than those in compression in the basic design situation, i.e., at the instant of t = 0 min. Consequently, even a considerable decrease in the resistance of tension members is not as dangerous as that of compression members. Therefore, due to the nature of the performance of individual elements, fire-proofing insulation of every steel structure should be computationally verified. Additionally, in this paper, the influence of the type of fire insulation on the mechanical response of the structure was investigated. Calculations were carried out for different types of sprayed-on insulation, and also for contour and box insulation panels. The graphs show the behaviour of the elastic modulus, the yield point, and the resistance of the elements in the successive minutes of the fire for the different methods of fire protection used. The best results were obtained for vermiculite and gypsum spray. View Full-Text
Keywords: fire insulation; fire analysis; steel structures; sprayed-on insulation; fire-proofing boards fire insulation; fire analysis; steel structures; sprayed-on insulation; fire-proofing boards
Show Figures

Figure 1

MDPI and ACS Style

Kubicka, K.; Pawlak, U.; Radoń, U. Influence of the Thermal Insulation Type and Thickness on the Structure Mechanical Response Under Fire Conditions. Appl. Sci. 2019, 9, 2606. https://doi.org/10.3390/app9132606

AMA Style

Kubicka K, Pawlak U, Radoń U. Influence of the Thermal Insulation Type and Thickness on the Structure Mechanical Response Under Fire Conditions. Applied Sciences. 2019; 9(13):2606. https://doi.org/10.3390/app9132606

Chicago/Turabian Style

Kubicka, Katarzyna; Pawlak, Urszula; Radoń, Urszula. 2019. "Influence of the Thermal Insulation Type and Thickness on the Structure Mechanical Response Under Fire Conditions" Appl. Sci. 9, no. 13: 2606. https://doi.org/10.3390/app9132606

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop