Lanzhou Prefabricated Houses

Lanzhou prefabricated houses mainly include two types: prefabricated integrated houses and houses using prefabricated composite floor slabs. They are characterized by efficient construction, environmental friendliness, and reliable performance, adapting well to the climate and architectural needs of Lanzhou.

Prefabricated Integrated Houses: A Green Solution for Industrialized Construction

Prefabricated integrated houses are produced through standardized factory production of components such as walls and floor slabs, which are then quickly assembled on-site, making them a type of green prefabricated building. Their core advantage lies in adapting to the climate and construction conditions of Lanzhou: In winter, Lanzhou is cold with significant temperature differences between day and night. These houses use high-performance insulation materials and thermal break structures to significantly improve the thermal performance of the building envelope, reducing building operational energy consumption. The light steel or concrete prefabricated frame structural system has strong seismic performance, capable of withstanding the seismic fortification requirements of magnitude 7 in Lanzhou. Factory production ensures component precision, reduces on-site wet operations and construction waste, and shortens the construction period by more than 30%, aligning with the environmental protection requirements of the ecologically fragile northwest region.
A company in the Lanzhou New Area has developed a mature model: Its intelligent production line has an annual capacity of hundreds of thousands of square meters, with products covering affordable housing, public buildings, and rural revitalization projects. Through cooperation with universities, it has developed adaptive technologies for cold regions, optimizing insulation and durability designs. The factory's waste recycling rate exceeds 90%, and energy consumption is lower than the industry average, achieving coordinated development between green manufacturing and construction.

Prefabricated Composite Floor Slab Houses: An Efficient Assembly Option for Construction

The prefabricated composite floor slab consists of a prefabricated base slab and an on-site poured layer, connected by steel bar connectors, with an overall stiffness 15% higher than that of traditional floor slabs. Their application scenarios are wide-ranging: When high-rise residential buildings adopt frame structures, they can reduce formwork time; municipal projects such as schools and hospitals utilize them to shorten the concrete curing period; and pilot projects for prefabricated buildings can enjoy policy subsidies.
Technical advantages are prominent: They have good seismic performance, effectively transmitting horizontal loads; reduce on-site concrete usage by about 30%, lowering construction waste; and through BIM technology optimization of layout, component loss rates can be controlled within 5%.
Construction requires attention to regional adaptability: Due to the significant temperature differences between day and night in Lanzhou, PC concrete anti-cracking agents need to be added to the surface of the composite slabs; lifting operations in windy seasons should be carried out in the early morning or evening; slab joints should be poured with micro-expansion concrete and kept moist for more than 7 days of curing; and the pre-embedding of water and electricity pipelines should be synchronized with the fixing of the base slab reinforcement. Using locally sourced granite gravel as aggregate can reduce costs and carbon emissions.