Bohai Steel Structure Co., Ltd.

Bohai Steel Structure Co., Ltd.
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    Fireproof and anticorrosive technology of steel structure

    author:Bohai Steel Structure Co., Ltd.

    【Font size: big medium smail

    time:2019-08-20 14:13:20

    (1) key technical content         

        technical fire safety anti-corrosion steel structure plays an extremely important safety factor for the effectiveness and performance of the steel structure . In terms of fire safety technology of the steel frame structure, fireproof materials or fireproof boards are usually used for maintenance. Fireproof materials are classified into ultra-thin, soaring and thick types. Ultra-thin fireproof material, the thickest and thickest is only 2.6mm, it is used for roller coating, painting or painting; the rising fireproof material, the thicker and thicker reaches 7mm, the painting method is 33051x engineering construction; when there is no decoration design, it can be used Non-stranded and thick inorganic fireproofing material without mineral fiber, the thickness is 50mm, and the construction method is 33957x by wiping or painting.

    For some column beams that must be encapsulated, fire-resistant sheet encapsulation can be used, exceeding the maintenance target. All kinds of fireproof materials and raw materials selected must be approved by the specific testing center of the fire safety unit. When the project is constructed, it must be painted or brushed according to the regulations, and the thickness of the fireproofing materials exceeding the design concept is strictly exceeded. The anti-corrosion of steel structure is determined according to the application regulations of the steel frame structure. Under normal conditions, the basic anti-corrosion paint should only be used. When the natural environment standard is extreme, it is necessary to select excellent anti-corrosion materials such as zinc-rich architectural coatings or weather-resistant steel.  

    (2) performance

        selecting a predetermined shape of a predetermined configuration by fire prefabricated building suitable fireproof material, fireproof material ultra-thin, thickness 0.6mm 2.6mm, its fire resistance grade is 0.5 hours to 2.5 hours; swell type fireproof material, thin thickness 3.0mm-7.0mm, its fire resistance grade is 0.5 hours to 2.5 hours; thick inorganic fireproof material, thin thickness 8794x0mm-50.0mm, its fire resistance grade is 0.5 hours to 3.0 hours .

    (3) Application         

        fire-resistant material applied to maintain a variety of sheet metal or fireproof steel structure, various commercial buildings when the outer Ultra-thin fireproof materials are used when the type is high, and soaring fireproof materials are often used for various large span structures, and many high-rise residential steel frame structures are often maintained with thick fireproof materials.

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