What materials are used for heavy steel building slab rooms?

Material requirements for prefabricated light steel structure movable board house at the construction site:

1. The materials of the prefabricated house should meet the design requirements and the provisions of the current relevant national standards. When materials and accessories enter the factory, they should be inspected for product certificate and appearance, packaging, and geometric dimensions, and their physical and mechanical properties should be sampled and tested according to the standards.

2. The materials used to make cold-formed thin-walled steel, light hot-rolled steel, connecting steel plates and round steel tie rods for the production of prefabricated houses are made of Q235 steel that conforms to the current national standard "Carbon Structural Steel" (GB T700). The quality of cold-formed thin-walled steel should comply with the provisions of the relevant standards of cold-formed steel XGB T6725, and the thickness should not be less than 2+ornm; The thickness of the connecting steel plate should not be less than. The stressed steel bars used for concrete structures should comply with the provisions of "hot-rolled round steel bars for reinforced concrete" (GB13013) and "cold-rolled ribbed steel bars" (GB13788).

3. The selection of welding materials should be suitable for the main metal materials. When manual welding is adopted, the welding rod should comply with the provisions of "Carbon Steel Welding Rod" (GB T5117); When automatic or semi-automatic welding is used, the welding wire shall comply with the provisions of "Steel Wire for Melting Welding" (GB T14957); The welding wire for carbon dioxide gas shielded welding shall comply with the provisions of "Carbon Steel and Low Alloy Steel Welding Wire for Gas Arc Welding" (GB T8110).

4. The ordinary bolts used for component connection should comply with the provisions of "Hexagon Head Bolts" (GB Factory R5782), and their mechanical properties should comply with the provisions of "Bolts, Screws and Screws for Mechanical Properties of Fasteners" (GB).

Light steel properties. 1.Corrosion Resistance:

The corrosion resistance of 55% aluminum-zinc steel coil comes from the barrier layer of aluminum, and the sacrificial protection function of zinc. When zinc is sacrificed for protection against cuts, scratches and abrasions on the coating, aluminium forms an insoluble oxide layer that acts as a barrier protection. Aluminum-galvanized alloy steel coil has been tested for more than 20 years in a variety of different atmospheric environments, and it has been confirmed that the trimming protection function of 55% aluminum-zinc steel plate is better than that of galvanized steel plate and 5% aluminum-zinc steel plate.

2.Heat resistance:

The heat resistance of 55% aluminum-zinc alloy steel plate is better than that of galvanized steel plate, and the high temperature oxidation resistance of aluminized steel plate is similar. Aluminum-galvanized alloy steel sheet can be used in high temperature environments up to 315 degrees.

3.Reflexivity:

The 55% aluminum-zinc alloy steel plate has a high reflectivity, making it a barrier against heat; The heat reflectivity of galvanized steel sheets is almost twice that of galvanized steel sheets, so they can be used to save energy even when the roof and panels are not painted.

4.Lacquerability:

Due to the excellent adhesion between the zinc layer and the paint of the aluminum-galvanized steel plate, it can be painted without pretreatment and weathering treatment when used as a sign board for general purposes; Whereas, galvanized steel sheet requires weathering treatment and pretreatment.

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1. Durability: The careful design combination of material selection and construction practices makes the product design and use limit up to 50 years: the core board is inorganic material, with good stability, anti-aging, and service life is equivalent to that of concrete materials; The diameter of the steel wire at the bottom of the plate is more than 3mm, the thickness of the protective layer is more than 20mm, and the moisture absorption rate is lower; The plate has strong resistance to acid, alkali and other gases, and the volume and strength have almost no change after 25 freeze-thaw cycles.

2. High strength: The combined structure of light steel skeleton and high-strength BAS inorganic lightweight core material is adopted, although it is a lightweight plate, it maintains the characteristics of large bearing capacity and high degree of traditional reinforced concrete heavy slab. It can not only meet the requirements of uniform load, but also has a strong centralized bearing capacity, which is an ideal material to replace traditional concrete roof panels and floor slabs.

3. Thermal insulation: the board has excellent thermal insulation performance, low thermal conductivity of the material, and the lowest heat transfer coefficient of the whole board, which meets the requirements of building insulation and energy saving in alpine areas; The board has excellent thermal insulation performance, and the temperature of the inside of the board is only 50 when the outside of the board is heated to 900, which is an ideal building insulation material in high temperature areas.

4. Waterproof: The steel skeleton light plate comes with a special BAS composite impermeable coating when it leaves the factory, which forms a reliable composite waterproof system with the overall waterproofing method of the roof, which solves the problem of easy leakage of general lightweight plates.

5. Refractory: The core board is made of inorganic material, which does not burn, and does not burst in the fire and does not release toxic gases, which is an excellent refractory material; The fire resistance limit of the whole plate is greater than 2 hours, which meets the first-class fire protection requirements of the components.

6. Explosion venting: It can meet the fragile requirements of special building roofs and walls. The experiment proves that the steel skeleton of the steel frame will be retained on the main structure of the building, and the core scattered material will be crushed instantly, which will not only achieve the purpose of explosion venting but will not cause secondary damage.

7. Seismic resistance: The steel skeleton light plate is a lightweight plate, which is conducive to seismic resistance, and with a reasonable seismic node design, it can meet the requirements of 8 degrees of fortification intensity. And when it happens, the secondary damage caused by the plate is small, and it is an ideal component material for buildings in the earthquake area.

8. Sound insulation: The average sound insulation volume of the plate is more than 40db, which meets the sound insulation requirements of high-grade acoustic buildings such as studios.

With the development of building materials, in order to follow the needs of the market, the steel skeleton light plate has been researched and produced, and has become a new type of building material in the industry, which not only has the advantages of good integrity and high safety of the traditional reinforced concrete travel slab, but also reduces the shortcomings of heavy concrete slab and cumbersome construction, and meets the new requirements of the new generation of buildings for lightweight, high efficiency, energy saving and environmental protection. What are the advantages in the construction of steel skeleton light plate?

There are many models and specifications, and the production is based on the different fields of use, and the use and workmanship of the original car materials will also be produced according to the performance parameters required by the enterprise. The common denominator is that the pouring process of one-time molding is adopted, so that the finished product has good integrity, and the stiffness and strength can meet the needs of enterprises for high safety, seismic resistance and large span projects.

Compared with the same type of plate, the steel skeleton light plate has a great advantage, and his material is wider, which is convenient for large-scale and continuous production, and its quality can be reliably guaranteed. The materials used are recyclable, so the steel skeleton lightweight plate is more environmentally friendly. Its surface can be removed according to the requirements of the hail skin for various styles of finishing, and the appearance effect is better.

The comprehensive mechanical properties are excellent, which can meet the different needs of different customers.

The integrated design of steel skeleton light plate is not only safe, but also easy to construct, which can effectively save construction costs. It is an indispensable building material in the enterprise nowadays.

Steel skeleton light plate, belongs to a relatively new type of building materials, with lightweight, high strength, fire resistance, heat preservation, heat insulation, sound insulation, good seismic and waterproof performance, good ductility of positive slag, etc., has good structural performance and engineering application prospects, and can be industrialized production, simple and fast assembly, can be used in grid beam beam structure, industrial plant shed, steel structure housing, etc., especially suitable for the application of large-span grid roof steel structure.

Because the steel skeleton light plate is poured in layers, and the foamed concrete layer is self-flowing pouring, which is very important for improving the deep waterproof performance of the steel skeleton light plate. During the pouring process of the steel skeleton light plate, the formation of the impermeable stratosphere is completely formed by relying on the natural flow of the liquid core material.

The whole molding process of the lightweight board does not even require too much human intervention, and the core material itself can be molded by itself with the advantage of good fluidity. After the natural leveling of the core material, a dense stratolayer will be formed on the surface of the plate, and its internal structure is stable and compact, and it is difficult for external substances to penetrate into it.

<> is a new type of lightweight energy-saving building material, it is not only energy-saving, but also fireproof, waterproof and even in the earthquake resistance can see it, so it is widely used in industrial plants, transportation, building walls and other side branches. It maintains the advantages of traditional reinforced concrete for a long time and has a long service life, and also meets the needs of modern industry for energy saving and light weight.

Nowadays, in response to the requirements of some large-scale engineering projects, steel skeleton light plates have successively developed a series of products such as large roof panels, floor slabs, explosion venting boards, etc. It solves the problems of fear of pressure and breakage when selecting materials, and may be applied to dangerous projects. There are better development prospects in petroleum, aviation, food, chemical and other industries.

The steel skeleton light plate has been patented by Beijing Tianji Company, so it is also called "Tianji board". It has stronger load-bearing capacity, strong compressive capacity and long service life than ordinary color steel plates, so more and more people begin to choose to use steel skeleton light plates.

It is suitable for industrial plants, rail transit, coal trestle bridges, public and civil buildings to enclose roofs, floors and walls. The steel skeleton light plate is composed of a light steel skeleton, cold-drawn steel wire mesh, a modified cement perlite composite core without air removal (proprietary technology), and an inorganic composite impermeable and wear-resistant coating (proprietary technology). It also integrates the functions of lightweight, load-bearing, energy-saving, fireproof, sound insulation, explosion venting, seismic resistance, etc., which not only maintains the advantages of high safety and long service life of traditional reinforced concrete components, but also meets the requirements of modern buildings for lightweight, energy-saving and environmental protection.

So the application is quite wide.

2. It is suitable for industrial plants, rail transit, coal trestle bridges, public and civil buildings, roofs, floors, walls, etc. The skybase plate is composed of a light steel skeleton, a cold-drawn steel wire mesh, an inorganic modified cement perlite composite core material (proprietary technology), and an inorganic composite impermeable and wear-resistant coating (proprietary travel mold technology).

The core material of the steel frame is foamed cement, puffed stone, cold drawn wire and main reinforcement.

Langfang Youda Energy Saving Technology ****.

The steel skeleton light plate is composed of a light steel skeleton, cold-drawn low-carbon steel wire mesh, a lightweight composite core material and a composite impermeable coating, which is poured and formed by unique technology. It mainly includes three types of products: roof panels, floor slabs and exterior wall panels, which integrate the functions of lightweight, load-bearing, heat insulation, heat insulation, impermeability, fire prevention, and sound insulation. It is suitable for all kinds of industrial plants, large storage supermarkets, stadiums, housing (plus) mezzanine and other industrial and civil buildings, and can be used with concrete structure, steel structure, grid structure, etc.