CALCULATION PROPERTIES OF FIRE RESISTANCE LIMITS OF WOOD CONSTRUCTIONS

Abstract

The article contains information on the nature of the parameters involved in the calculation of the fire resistance of wood structures, widely used in the construction sector, and the standards, recommendations and nomograms used in the determination. When deter-mining all forms of states of strength of boarding houses, the main factors affecting their limit were considered, and the calculation rules were indicated. Thermal engineering issues of struc-tures - determining the temperature distribution along the very edge of the elements, heating the non-carbon part of the muscle, as well as determining the speed and depth of carbon. At the same time, for curved elements, two decomposition schemes are given, depending on the amount of torque and the ratio of the width of forces in the dash, as well as the ratio of the length of these trails to height. The description of the changes and the procedure for determining the corres-ponding parameters, accompanied by the destruction and loss of strength of the elements in the direction of compression of the line from the influence of flame, are shown. Here are some examples of how to calculate the fire resistance limits of structures or individual elements that are subject to compression and bending. The reports used SniP standards for fire resistance of wood structures and nomograms compiled by SNISK.