Prefabricated House Atlas

The currently available prefabricated house atlases mainly include some standard atlases published by Hunan Province and Sichuan Province, with specific information as follows:

Atlas of 'Prefabricated Ribbed Base Plate Concrete Composite Floor Slabs' published by Hunan Province
This atlas, numbered Xiang 2021G301, has been officially implemented since April 1, 2021. Its core content focuses on the combined design of prefabricated ribbed base plates and concrete composite floor slabs, suitable for building floor and roof slab projects in areas with seismic fortification intensities of 6-8 degrees. The atlas specifies component specifications, connection node details, and construction process requirements through standardized design, aiming to enhance the overall load-bearing performance and construction efficiency of composite floor slabs. For example, the design of ribbed base plates can increase floor slab stiffness, reduce on-site wet work, and ensure component quality stability through standardized production. The promotion of this atlas provides technical support for prefabricated building floor slab projects in the central and southern regions of China.

Series of Atlases for Standard Prefabricated Concrete Components for Prefabricated Residential Buildings published by Sichuan Province
The Sichuan Provincial Department of Housing and Urban-Rural Development has released four specialized atlases covering two core components: composite slabs and stairs:

1. 'Standard Base Plate for Prestressed Concrete Steel Pipe Truss Composite Slabs': Utilizes prestressed technology and a composite structure of steel pipe trusses to enhance the crack resistance and span capacity of composite slabs, suitable for large-space residential floor designs.
2. 'Standard Base Plates for Prefabricated Concrete Composite Slabs for Prefabricated Residential Buildings (I) and (II)': Specifies the dimensions, reinforcement, and reserved hole positions of ordinary concrete composite slab base plates for different load levels and span requirements, emphasizing compatibility between modular design and on-site installation.
3. 'Standard Tread Plates for Prefabricated Concrete Stairs for Prefabricated Residential Buildings': Unifies the dimensions of stair treads, anti-slip tread details, and connection node practices for prefabricated stairs, supporting standardized mass production and rapid installation, significantly shortening construction periods.

Suggestions for Access
To consult specific atlas content or obtain prefabricated house atlases from more provinces, you can use the following methods:

1. Visit the official websites of the Hunan Provincial Department of Housing and Urban-Rural Development or the Sichuan Provincial Department of Housing and Urban-Rural Development, and search for the corresponding atlas numbers and names under the 'Standard Quotas' or 'Engineering Construction Standards' sections.
2. Contact local architectural design institutes or prefabricated building industrial bases to obtain authorized paper or electronic versions of the atlases.
3. Follow authoritative platforms such as the National Building Standard Design Network, where some atlases may offer online previews or purchase services.

Please note that the use of atlases should be based on actual seismic fortification requirements, load conditions, and construction capabilities of the project. If necessary, a professional institution should be commissioned for detailed design.