Prefabricated Light Steel House Home Material Light Steel Keel Frame

• Customization: Available
• After-sales Service: 75 Years
• Connection Form: Bolt Connection
• Model NO.: Customization
• Feature: Anti-Corrosion, Earthquake Resistance, Easy To Install, High Intensity
• Install: Guided Installation
• Transport Package: Bubble Wrap Packaging
• Specification: customize
• Trademark: Wonderful
• Origin: China
• HS Code: 9406
• Production Capacity: 20000 Square Meter

Product Description

Lengwan thin-walled aluminum-zinc light steel frame is a building structure with many advantages. It is widely used in the field of modern construction. The following are its main advantages:
1. Material performance advantages
High strength and lightweight
Using aluminum-zinc-coated steel plates (the thickness of aluminum-zinc alloy coating is usually 55% aluminum + 43.4% zinc + 1.6% silicon), the strength is significantly higher than that of traditional steel, the yield strength can reach 250-550MPa, and the tensile strength can reach 400-650MPa.
The thickness of steel is generally 0.8-1.2mm, and the weight per unit area is only 1/4-1/3 of that of traditional concrete structures, which greatly reduces the self-weight of the building and reduces the foundation load. It is especially suitable for soft soil foundations or load-sensitive building scenes.
Excellent corrosion resistance
The aluminum-zinc coating resists corrosion through the dual mechanisms of cathodic protection and barrier protection: the aluminum-zinc alloy coating forms a dense oxide film (Alumina) on the surface of the steel to prevent oxygen and moisture from invading; if the coating is damaged, the zinc element corrodes first to protect the steel matrix.
The corrosion resistance is 2-5 times that of ordinary galvanized steel sheets. In the neutral salt spray test, the corrosion resistance life of aluminum-zinc steel sheets with a coating thickness of 150g/m² can reach more than 50 years, which is suitable for humid, coastal or high humidity environments.
Environmental protection and sustainability
Steel can be 100% recycled, and the frame materials can be recycled after the building is demolished, reducing construction waste and environmental burden.
The energy consumption of the production process is lower than that of concrete (the energy consumption of concrete production is about 1.5-2 times that of steel), and the construction pollution is less, which is in line with the concept of green building.
2. Structural design advantages
Flexible space layout
The light steel frame adopts modular design, with high component size accuracy (error ±0.1mm), which can achieve large span (6-12m) column-free space, convenient for flexible division of indoor functional areas, especially suitable for open office, commercial complex and other scenes.
The wall thickness is only 1/2 of the traditional brick wall (such as 200mm thick light steel wall vs. 400mm thick brick wall), increasing the usable area by about 8%-15%.
Good seismic and wind resistance
The light steel frame is a flexible structure with light weight and ductility. It can absorb seismic energy through node deformation, and the seismic fortification intensity can reach more than 8 degrees (traditional brick-concrete structure is usually 6-7 degrees).
The overall rigidity of the frame is high, and the wind-resistant design can withstand a 12-level typhoon (wind speed ≥32.7m/s), which is suitable for areas with frequent typhoons.
Industrialized production and precise installation
The components are prefabricated in the factory (automatic processes such as cutting, punching, and galvanizing), and connected on site by bolts or self-tapping screws. No wet work is required, and the construction period is shortened by 50%-70% compared with traditional buildings.
Strict error control avoids structural hazards caused by on-site construction errors and improves the stability of building quality.
3. Construction and economic advantages
Fast construction and low cost
On-site construction does not require large machinery (only small lifting equipment is required), labor requirements are reduced by more than 50%, and the overall cost is reduced by 10%-30% compared with traditional structures (especially suitable for low-rise and multi-story buildings).
Short construction period, for example, the main structure of a 200 squae meter light steel villa can be completed within 45 days, which is suitable for emergency construction projects (such as post-disaster reconstruction and temporary buildings).
Significant insulation and energy-saving effects
The wall can be filled with high-efficiency insulation materials such as rock wool, glass wool, XPS extruded board, etc., with a thermal conductivity coefficient as low as 0.02-0.04W/(mxK), which is better than traditional brick walls (thermal conductivity coefficient is about 0.5-1.0W/(mxK)).
With the airtight design, the overall energy saving rate of the building can reach 65%-75%, reducing heating and cooling energy consumption, and lower long-term use costs.
IV. Wide range of applicable scenarios
Low-rise buildings: villas, homestays, holiday homes, rural self-built houses, etc. (3 floors and below).
Multi-story buildings: apartments, office buildings, schools, hospitals (6 floors and below, need to be combined with concrete core tubes or shear walls).
Renovation and expansion: Light steel mezzanines can be superimposed or expanded on the basis of the original building without significantly changing the original structure.
Special environment buildings: buildings in earthquake zones, coastal high-corrosion areas, and high-humidity areas
Material: Cold-bent thin-walled aluminum-zinc light steel keels are used. The quality of the aluminum-zinc coating is not less than 150Gram/Square Meter. The alloy coating has excellent corrosion resistance. Its corrosion resistance is 2-6 times that of ordinary galvanized steel. It can effectively resist various harsh environments and greatly extend the service life of the house structure. The yield strength can reach G550 MPa.
Specifications:
The thickness is generally 0.8-1.2mm, and the thickness can be selected according to the purpose.
·For wall keels, floor keels, and roof keels, we all use C-type standard specifications of 89x41x15mm. The floor will be combined into beams of different heights with C-type standard specifications according to different loads, including stairs and roofs.
·Wall keel: The main keel generally adopts the specification of 89x41x15mm, and the vertical keel spacing is generally 406-610mm; when the height is 4-6m, the support needs to be strengthened.
·Floor keel: The main keel generally adopts the specification of 89x41x15mm. For floor areas with heavy load requirements (such as equipment rooms, storage rooms, etc.), it is necessary to appropriately increase the keel specifications or increase the keel spacing based on actual load calculations.