Fireproof steel structure for building

Abstract

The invention discloses a fireproof steel structure for a building. The fireproof steel structure comprises a first steel plate and a second steel plate, wherein a first liquid groove is formed in the first steel plate, and the inner side wall of the first liquid groove is in sealed sliding connection with a first sealing plate. When a fire occurs outside, the fireproof steel structure can absorb a large amount of heat, so that heated and easily-expanded gas in an air bag fixedly connected to the inner side wall of the liquid groove expands, the air bag extrudes and pushes the sealing plate to move towards the two sides, fireproof liquid in the liquid groove is sprayed out through a liquid spraying opening, and as a result, the outer side walls of the first steel plate and the second steel plate are covered with the fireproof liquid, a fire source is effectively blocked, the situation that the fire source burns the first steel plate and the second steel plate, the first steel plate and the second steel plate deform, consequently, the first steel plate and the second steel plate cannot support a house, and greater harm is caused to personnel is prevented, the first steel plate and the second steel plate are protected to a certain extent, the health and safety of the personnel are protected, and the fireproof efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of steel structures, in particular to a fireproof steel structure for buildings. Background technique [0002] Steel structure is a structure composed of steel materials, which is one of the main types of building structures; the structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates, and is made of silanized, pure manganese and phosphorus Chemical, washing and drying, galvanizing and other rust removal and anti-rust processes; welds, bolts or rivets are usually used to connect each component or part; because of its light weight and simple construction, it is widely used in large factories, venues, super High-rise and other fields; steel structures are prone to corrosion, and general steel structures need to be derusted, galvanized or painted, and regular maintenance is required; steel is characterized by high strength, light weig...

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Problems solved by technology

[0004] However, this invention only effectively blocks the fire source by applying fire-resistant paint on the outer surface of the steel structure. The deformation and cracking of the wall caused by the collision of external factors makes it impossible to isolate the fire source and cause a wider range of fires. Therefore, we propose a fire-resistant steel structure for buildings to solve the above problems

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