Internal and external connection spraying reinforcement type fireproof plate type joint structure and use method

Abstract

The invention relates to an internal and external connection spraying reinforcement type fireproof plate type joint structure and a use method. The method comprises the steps that a fire is judged; apressure water supply system is started, water flow enters a dish-shaped spray head body from an outer pipe through an inner sliding pipe and impacts a cambered surface bottom shell, the dish-shaped spray head body drives an inner sliding pipe convex ridge to slide along a pipe opening shrinkage ring, a cambered surface bottom shell touches a lower joint disc cover to fall off the lower joint disccover, and the inner sliding pipe convex ridge continues to slide along the pipe opening shrinkage ring until the surface of a gasket I makes contact with the surface of the gasket II; at the moment,water mist is sprayed out from twelve nozzles in a full-pressure mode to completely wrap the interiors and the exteriors of plate type joints, and overall heat insulation and cooling are achieved; when it is judged that the fire is extinguished, the water supply system is stopped, and the dish-shaped spray head body is reversely pushed to drive the inner sliding pipe convex ridge to slide along the pipe opening shrinking ring until the inner sliding pipe convex ridge is stored and reset; and the lower joint disc cover is covered into a lower joint disc hole. Reference is provided for fireproof protection design of components of newly-built aluminum alloy latticed shells, fireproof transformation during reconstruction and extension and manufacturing and revision of related standards, and huge social, economic and public safety benefits are achieved.

Description

technical field [0001] The invention relates to the field of fire protection of building structures, in particular to an internal and external spray-reinforced fireproof panel structure and its use method. The structure and fire protection integration of node structure cooling structure and fire protection, internal and external spraying reinforcement type fireproof plate node structure and the use method after a fire occurs. Background technique [0002] In public buildings (sports venues, exhibition halls, theaters, botanical gardens), in order to pursue the expression of metallic appearance and the aesthetic feeling of dense triangular grids on the interior ceiling, architects increasingly choose aluminum alloy reticulated shells with various shapes and shapes as Roof load-bearing structures, such as Nanjing Niushou Mountain Foding Palace, Chengdu Coubertin Five Sports Event Center, etc. [0003] For the node structure of aluminum alloy reticulated shells currently wid...

AI Technical Summary

Problems solved by technology

[0019] The invention overcomes the disadvantages that the prior art cannot meet the needs of public buildings with the appearance of aluminum alloy metal texture, the aesthetic feeling of dense triangular grids on the ceiling of the indoor reticulated shell structure, and the requirement of adapting to the shape of the curved surface of the reticulated shell structure.

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