Support structure with fire protection

摘要

The invention relates to a fire protection component which regardless of its functional purpose may be utilized for any structural sites of steel, metal light construction or even of wood. The invention is based on the problem of developing a fire resistant frame structure which at a reduced assembly and maintenance complexity provides for a long-term resistance against overheating and softening and which requires a reasonable need for extinguishing materials. The resistance against overheating is to be effective at the initial phase of a fire and in any area of the frame structure regardless of its material and consistency. In accordance with the invention, the frame structure is laid out solely on the basis of its static requirements conditioned by its structural function quantity. Its resistance against fire is attained by the use of spray nozzles (6) as water output devices and that these are arranged along at least a part of the frame structure such that the water exits from them as finely distributed spray droplets of aerosol, hereafter called mist, that the marginal areas of the output cones (7) of adjacent spray nozzles (6) overlap and that in case of fire the output cones (7) of all spray nozzles (6) activated by the fire report thus envelop the parts of the frame structure within its reach in a mist.