Introduction to steel structure engineering, mastering this knowledge is enough!

Steel structure engineering is a structure mainly made of steel, which is one of the main types of building structures. Steel structure is one of the more common structural forms in modern construction projects. Many large-scale and complex steel structure workshops, large-span steel structure civil buildings and railway bridges need steel structures to be realized. Today I will bring you some basic knowledge of steel structure!

First, the roof system of steel structure

Steel structure residential roofing system is composed of roof truss, structural OSB panel, waterproof layer, light roofing tile (metal or asphalt shingle). The roof of steel structure, the appearance can be in many combinations. There are also a variety of materials. Under the premise of ensuring the technology of waterproofing, the appearance has many options.

Second, the wall structure of steel structure

The wall of steel structure housing is mainly composed of wall frame columns, wall top beams, wall bottom beams, wall supports, wall panels and connecting parts. Steel structure housing generally the inner transverse wall as the load-bearing wall of the structure, wall column for C-shaped steel components, its wall thickness according to the load received, usually 0.84 ~ 2 mm, wall column spacing is generally 400 ~ 600 mm, steel structure housing This wall structure arrangement, can effectively bear and reliably transmit vertical load, and the layout is convenient, steel structure residential wall structure can not withstand horizontal load.

Third, steel structure building insulation and energy-saving technology

In order to ensure the thermal insulation effect, the thermal insulation materials used in the exterior walls and roofs of buildings can be used for a long time and can be insulated. In addition to filling the wall pillars with glass fiber, steel structure houses generally paste a layer of thermal insulation material on the outside of the wall, which effectively separates the thermal bridge through the wall pillars to the exterior wall panels; The shelves between floors are filled with glass fiber to reduce heat transfer through the floors; All interior walls are filled with fiberglass between the pillars to reduce heat transfer between the walls.

Fourth, building fire prevention technology

One of the most critical issues is the application of fire protection technology, and the steel structure produced by Xirong steel structure building has a fire resistance grade of four. Steel structure houses on both sides of the wall and the roof of the roof with anti-spark gypsum board, for ordinary firewalls and sub-walls with 25.4 mm thick (1 inch) gypsum board protection, to achieve 1 hour fire protection requirements, in addition to the wall between the wall pillars and the roof grille filled with glass fiber for fire prevention and heat transfer also play a positive role in protecting fire and heat transfer.

Five. Building sound insulation technology

The steel structure is filled with glass wool between the interior and exterior walls and the roof grille, which effectively prevents the audio part transmitted through the air, and for the impact sound transmitted through solids, the following structural treatment is made: for the sub-household wall, two wall columns are used to form two walls with intermediate gaps; For the small keel of fixed plasterboard for suspended ceilings, an elastic structure with small grooves is used to effectively reduce the solid sound propagation between floors.

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