Prefabricated Housing Standards
Prefabricated housing standards cover multiple aspects such as foundation and substructure, main structure, material usage, construction specifications, and design requirements, as detailed below:
Foundation and Substructure: The bearing capacity of the foundation is crucial and requires appropriate reinforcement measures based on geological conditions, such as pile foundations and soil replacement layers, which are common methods. The depth of foundation embedding should comprehensively consider factors such as geological conditions, groundwater levels, and permafrost depth to ensure foundation stability. Additionally, materials like cement and steel bars used must comply with relevant national standards and design requirements, which is fundamental to ensuring sufficient strength and durability of the foundation and substructure.
Main Structure: The design of the main structure should be scientifically reasonable, with dimensions, reinforcement, and connection methods of structural components such as beams, columns, and walls meeting seismic fortification requirements and relevant codes. The production of prefabricated components is vital and must strictly adhere to relevant codes to ensure dimensional accuracy, strength, and durability meet standards. Moreover, the connections between components must be secure and reliable, which is a necessary condition for meeting structural safety requirements.
Material Usage: Material selection should follow the principles of adapting to local conditions and using local materials, prioritizing green and economical building materials or recyclable building materials. Under the premise of ensuring quality, priority should be given to using local building materials, which can reduce costs and align with environmental protection concepts. At the same time, the use of high-energy-consuming and excessively polluting materials should be strictly prohibited. Regarding cement quality, qualified products should be selected, with their strength grades and soundness indicators meeting national standards. In addition to cement, materials like sand, gravel, and steel bars should also comply with relevant national standards and design requirements to ensure the overall quality of the house.
Construction Specifications: Construction should follow a reasonable process, covering aspects such as foundation treatment, foundation construction, installation of prefabricated components, and roofing and waterproofing works. During construction, attention should be paid to detail handling, such as precise splicing of prefabricated components and tight laying of waterproof layers, to ensure construction quality meets design requirements and relevant codes. After the house is completed, a comprehensive quality acceptance should be carried out, including structural safety and usability aspects. If necessary, quality testing should also be conducted to verify whether the construction quality meets standards.
Design Requirements: Prefabricated rural houses should respect farmers' housing needs, with architectural styles reflecting regional characteristics. At the same time, appropriate consideration should be given to age-friendly design, with barrier-free ramps preferably installed at entrances. The floor plan and facade design should facilitate winter sunshine and summer ventilation, preferably with a north-south orientation. The shape should be simple and regular, with a regular floor plan layout and vertically aligned load-bearing components. Functional spaces should be complete, including bedrooms, dining rooms, storage spaces, and courtyard spaces, with a preferred separation of living and quiet areas in the living space layout.
