Reduction of vibrations in the operation of roof boiler houses

The article presents practical measurements, theoretical calculations and the results of the introduction of the "floating floor" method in the operation of roof boiler houses with a capacity of N=1.0 MW and more mounted on monolithically structured buildings. A distinctive feature of the latter is the rigid core, which is the stair and lift unit. Metal fittings and concrete elements provide the load-bearing capacity of the framework. External noises and vibrations easily affect the materials and, with a minimal loss, they effect the entire body of the materials and then the other parts of the construction. To reduce that negative impact, they provide the perimeter of the boiler house with the "floating floor" (as the appropriate method.) The author complements the existing method by way of creating a separate contour under the boiler plants. The results of the experiment basing on the chosen method: the technological equipment having a greater degree of flexibility when the interior of the boiler house is affected by vibration with a consequent reduction of its negative impact on the building construction; the minimisation of the points of the transmission of vibration; loss of the need to calculate the position of the boiler house in relation to the stair and lift unit; the improvement of the comfort of living conditions. The results of the work may be used when modelling the impact of noises and vibrations on constructions as well as the protection of constructions by combining pre-existing methods with the developed ones.