Prefabricated Concrete Reinforced Steel House

Prefabricated concrete reinforced steel houses mainly include two types: composite floor slabs and reinforced concrete prefabricated houses. The following is a detailed introduction:

Composite Floor Slabs

• Structural Composition and Applicable Scenarios: Composite floor slabs are formed by the superposition of prefabricated slabs and cast-in-place reinforced concrete layers, belonging to assembled monolithic floor slabs. They are suitable for high-rise buildings and large-span buildings, with common spans ranging from 4 to 6 meters. The prefabricated slabs serve a dual function as structural components and permanent formwork in the structure. Pipes can be laid within the cast-in-place layer, and expanded polystyrene boards can be filled to form a box-shaped cross-section, reducing self-weight and providing sound insulation.
• Structural Characteristics and Advantages: This structure combines pre-stressed thin slabs with cast-in-place layers. The surface of the thin slabs is treated with roller indentations to enhance the bond with the cast-in-place layer. The thickness of the cast-in-place layer is determined based on the span, typically not less than 90mm. Composite floor slabs offer numerous advantages, including strong overall continuity, effectively ensuring the stability of the building structure; saving formwork and reducing material consumption during construction; and facilitating transportation and installation, improving construction efficiency.
• Practical Application Cases: In key projects such as the Beijing Changping Life Valley International Pharmaceutical Smart Manufacturing Park (Phase II), which commenced construction in March 2026, and the Quzhou Beihang Digital Economy Industrial Park project undertaken by Zhejiang First Construction Group, assembled composite slab technology has been applied, and both projects have progressed smoothly, demonstrating the feasibility and practicality of this technology.

Reinforced Concrete Prefabricated Houses

• Construction Characteristics: Reinforced concrete prefabricated houses can be constructed relatively quickly, completing the main structure of the house in a short period. For example, the cement "prefabricated houses" used in rural areas of Henan can complete the construction of a villa in just four hours.
• Cost Advantages: Their construction cost is relatively low. Taking the case in rural Henan as an example, villas made of reinforced concrete cost only a little over 300 yuan per square meter and come with a 70-year warranty, providing residents with an economical and durable housing option. These prefabricated houses have significant market potential in rural areas and other regions with high demands for construction cost and speed.