Introduction to Prefabricated Steel Frame Structure Houses

Prefabricated steel frame house is a modern architectural solution that combines performance, environmental protection and economy through high-strength materials, modular construction and low carbon and energy-saving technologies.

I. Core structure design

Main frame:

Adopting G550 grade aluminum-zinc-plated steel (yield strength ≥550MPa), molded by cold-rolling process, with galvanized layer thickness of 80-120 microns, corrosion-resistant life of over 50 years.

The frame is made of C-type steel or H-type steel as columns, with corrugated steel cast-in-place floor slabs, with a second-floor floor loading capacity of 1 ton/㎡.

Connection process:

Self-tapping screws are assembled in a dry method, and the seismic performance reaches above grade 9 and the wind resistance grade ≥12.

II. Materials and Parameters

Wall: IEC self-insulated wall (OSB board + fiberglass wool + calcium silicate board), heat transfer coefficient ≤ 0.3W/(m²-K), sound insulation ≥ 65dB Winter indoor/outdoor temperature difference ≤ 5°C

Roof: Photovoltaic integrated metal tiles (average daily power generation 15kWh/㎡) or asphalt shingles Waterproof life ≥ 30 years

Foundation: Pile foundation (depth 1.5-3m), suitable for mountain, wetland and other complex terrain Reduce the amount of earth excavation by 80%.

III. The performance advantages

Environmental protection characteristics:

Steel is 100% recyclable, and the recycling revenue after demolition covers 30% of the demolition cost;

Factory prefabrication rate ≥ 90%, on-site construction waste reduction of 80%, wastewater and exhaust emissions close to zero pollution.

Energy saving efficiency:

Ground source heat pump system + energy storage device, winter heating costs as low as 8 yuan / square meter, comprehensive energy saving 65% throughout the year;

Rainwater recycling system daily capacity ≥ 2 tons, water saving rate increased by 40%.

Healthy Habitat:

PM2.5 filtering fresh air system + Low-E hollow glass, indoor air quality is 3 times better than outdoor;

Formaldehyde-free environmental protection paint, VOC emission ≤ 0.03mg/m³.

IV. The construction process and cycle

Standardized process:

Design stage: 3D modeling and load calculation (5-7 days);

Factory prefabrication: keel cutting, punching, galvanizing treatment (15-20 days);

On-site assembly: foundation construction + modular assembly (30-45 days, including decoration).

Cost control:

Comprehensive cost of 1,500-2,500 RMB/㎡ (including intelligent system), 15%-20% lower than traditional buildings;

Maintenance cost reduced by 60%, full life cycle carbon emission ≤15kgCO₂/㎡- per year.

V. Application Scenarios

New rural housing: Shanxi, Shandong and other places to promote, enjoy the highest 120 yuan / ㎡ government subsidies, 200 ㎡ villa construction cycle of only 30 days;

Eco-cultural tourism project: Hu Tuo River Eco-Belonging integrated PV roof + vertical greening, annual power generation of 8000 degrees, energy self-sufficiency rate of more than 70%;

Urban modular community: a project in Chengdu adopts whole-house intelligent temperature control, reducing the comprehensive construction cost by 22%.

VI.The choice of prefabricated steel frame structure housing factors to consider

1. Suitability for use

Define the use of the building (e.g., residential, commercial or industrial), and there are significant differences in the requirements for span, floor height and load capacity in different scenarios. For example, industrial buildings require larger spans (≥15m) and higher floor loading capacity (≥1 ton/m2).

2. Seismic and wind-resistant performance

In earthquake- or typhoon-prone areas, it is necessary to use G550-grade aluminum-zinc-plated steel (yield strength ≥550 MPa) and optimize the node connection process to ensure that the seismic grade is ≥9 and the wind grade is ≥12.

3. Foundation design

According to the geological conditions, choose pile foundation or raft slab foundation, reduce the amount of earth excavation by 80%, and adapt to complex terrain such as mountains and wetlands.

4. Steel quality and anti-corrosion

Priority is given to the use of aluminum-zinc-plated steel (plating thickness ≥ 80 microns), corrosion-resistant life ≥ 50 years, to avoid the risk of surface rust.

5. Thermal insulation and sound insulation

The wall is recommended to use IEC self-insulation system (heat transfer coefficient ≤ 0.3W/(m²-K), sound insulation ≥ 65dB) with Low-E insulating glass to realize warmth in winter and coolness in summer.

6. Fire prevention and environmental protection

Selection of Class A fireproof calcium silicate board and formaldehyde-free environmental protection paint (VOC≤0.03mg/m³), to protect the indoor health environment.

Why Choose Us

Shijiazhuang Eiffel Steel Structure Co., Ltd.

Shijiazhuang Eiffel Steel Structure Co., Ltd. is an enterprise dedicated to researching and developing new energy-saving and environmentally friendly houses and construction methods. We always adhere to the values of honesty and quality first, and position ourselves as a leader in high-quality steel structure villa construction. We combine emerging foreign technologies with the actual domestic market and provide customers with one-stop services for prefabricated buildings such as design, production, interior decoration, and whole house customization. The prefabricated buildings produced by the company are widely used in office buildings, villas, rural courtyards, estate clubs, tourist attractions, homestays, hotels, public facilities, etc. 

At present, the company is centered in Shijiazhuang, Hebei Province, with products radiating to regions such as Beijing, Tianjin, Hebei, Shanxi, Shandong, Henan, Liaoning, Mongolia, Jiangsu, Sichuan, and Guangxi, and exported to overseas markets. Adhering to the quality demand of "building a century old villa, choose Eiffel", we strive to create an excellent brand of prefabricated buildings.

House building process

Helping customers maximise value with consistent excellence