Camiseta Bayer Leverkusen

Camiseta Bayer Leverkusen, Large-span steel structure fire hazard and precautionary measures Jinhua detachment / Zheng Weiguo With the deepening of economic restructuring, the rapid development of industrial enterprises, large buildings is increasing. On the one hand because the production process on the other blind business owners seeking large, than the width, resulting in larger volumes, more construction. Steel structure with short construction period; available area, plasticity, seismic, bending, load big advantages to steel as the preferred long-span construction. However, fire-resistant steel as a building material because of its poor performance, easy to collapse of defects in a series of fire prevention work is facing new problems, this paper, the author of the work practice to talk about the large-span steel structure fire hazards and preventive measures:

A large span steel structure of the fire hazard
(1) fire rapid development, easy to form large-scale burning. Large span steel structure, a large space inside the building, doors, windows and more rapid air circulation, internal fire separation is not obvious in case of fire, spread way to more rapid development of fire, burning fiercely, extremely strong convection in the formation of a large area under fire. ventas de camisetas de futbol , Large-span steel structure fire hazard exists is part of the main factors of construction projects without the fire of examination and acceptance.

(B) poor fire resistance of steel construction, easy to collapse. Camiseta Bayern Munich FC , Steel material in the un-fire deal with the case, does not in itself a fire; but fire intensity will drop rapidly. It has been tested in full load condition, so that the stability of steel loss of static equilibrium critical temperature is 500 degrees, and general fire temperatures can reach 800-1000 degrees. Camiseta Bayer Leverkusen , In such a high temperature, the exposed steel will soon deformation, partial destruction, resulting in the collapse of steel as a whole. Ordinary steel plant is generally about 15 minutes after the fire will lose the load-bearing function and collapse, such as the Jiangnan Development Zone, Jinhua City Feilong Pharmaceutical Co. , Ltd. steel warehouse fire, the fire less than 20 minutes after the fire in central heavy steel frame office the collapse occurred. .