The authors first examined the possibility of estimating the pore space coating of intumescent coatings for increase the fire resistance of building structures using the program “Video tests”
This article provides a development of the new state standard of the Russian Federation 55988-2014 “Building structures. Extended application of results from fire resistance tests for glazed non-loadbearing curtain walling structures”. This standard is harmonized with the current European standard EN 15254-4: 2008 + A1: 2011 “Extended application of results from fire resistance tests – Non-loadbearing walls Part 4: Glazed constructions” and modified (not made identical) in relation to it, as there are significant differences in Russia and Europe concerning the systems of rationing the fire resistance of non-loadbearing glazed walls
Modeling of dangerous fire factors is an important element in the system of modern fire safety assessment of buildings and structures. The paper presents a comparative analysis of the characteristics of the software system PyroSim. The verification of the fire model in the FDS program, which was performed on the basis of full-scale tests conducted by Professor Chau W.L., was analysed. The analysis of empirical and calculated data on modeling of fire in the atrium is made. The conclusion is made about the accuracy of simulation in the FDS program and the coincidence of the experimental data with the calculated ones.
The paper presents the results of the development of a multi-layer protective product, which is a transformable fire barrier, installed in buildings and structures to limit the spread of flame, heat flow and smoke. Based on the results of the simulation of eight samples of fire curtains, three promising samples of different compositions were selected, demonstrating a fire resistance limit on the loss of thermal insulating capacity (I) of 30 min. During the small-scale tests, it was found that the multilayer fabric of the following composition was promising: heat-treated silica fabric, aluminum foil, mineral fiber heat insulation material, stitched by needle-punching with silica thread, fabric reinforced with fiberglass mesh and stitched through with basalt thread, with seams treated with a fire-resistant elastic sealant. According to the results of a standard large-scale experimental study, a fire curtain with a loss of integrity not less than 60 min, and a loss of thermal insulating ability not less than 15 min were obtained. The results of the study assess the impact of the scale factor on the fire resistance limit of fire curtains in a fire.