| 摘要 |
FIELD: construction and fire safety equipment, particularly ladders characterized by being permanently attached to fixed structures, for instance fire escapes. ^ SUBSTANCE: device is adapted to cool cantilever beam and monorail made as flange beam connected to lower part of end of cantilevered flange beam having another end clamped in outer building wall under eaves. Depression is created in building wall from outer building wall side and spaced 0.5-1 m from blind area of the building. The depression is made by horizontal orifice drilling and is adapted to receive water supply riser block fixed in the depression by means of cement mortar. The water supply riser block is made as pipe and flange with large-diameter ring and Bogdanov type connective half nut connected thereto. Water supply pipe is arranged on upper face of cantilever beam. Water supply pipe has diameter equal to that of water supply riser block. One end of water supply pipe is sealed with steel sheet having strength equal to that of pipe wall. Two perforated orifice rows are arranged in said pipe in lower part thereof so that the rows are symmetric about axis of cantilever beam and monorail. Water supply riser is arranged inside building and is inserted in orifices drilled in ceiling and aligned with each other up to clamped cantilevered flanged beam end. One riser end is connected to water supply riser block by means of elbow member having the same diameter and bent through right angle. Another end thereof is connected to water supply pipe arranged on upper face of cantilevered beam. ^ EFFECT: possibility to create monorail about building perimeter so that the monorail is located under eaves or at camp ceiling level, increased efficiency of monorail section cooling in the case of fire. ^ 1 cl, 4 dwg |
