Announcement of Beijing Prefabricated Housing Plan
No direct information on the announcement of Beijing's prefabricated housing plan was found, but relevant content from a construction plan for a prefabricated housing project in Beijing can be provided for reference:
Project Overview
The project is located in Chaoyang District, Beijing, with a total construction area of approximately 5,000 square meters, consisting of 3 floors above ground and 1 floor underground, with a building height of 12 meters. It adopts a prefabricated concrete frame structure with a prefabrication rate exceeding 70%, covering components such as prefabricated columns, beams, floor slabs, stairs, and external wall panels. The project aims to achieve efficient construction through industrialized production, reduce on-site work volume, shorten the construction period, and comply with Beijing's policy requirements for the development of prefabricated buildings. The project features a wide variety of components, large sizes, high lifting accuracy requirements, and necessitates a combination of on-site assembly and cast-in-place operations, demanding strict construction organization and coordination. The total planned construction period is 180 days, with a quality objective of meeting the合格 (qualified) standard of the national standard Technical Standard for Prefabricated Concrete Buildings (GB/T 51231-2016) and striving for the Beijing Structural Great Wall Cup.
Construction Deployment
Project Management Organization
Establish a project management department with 1 project manager, 2 deputy managers, and 1 chief engineer, along with functional departments such as construction technology, quality and safety, and materials and equipment, to clarify job responsibilities and ensure efficient and orderly management.Construction Zoning and Flow Segment Division
The project is divided into three construction segments, A, B, and C, with construction layers organized by floor for flow operations. The underground 1st floor is the first stage, and the above-ground 1st to 3rd floors are the second stage. Within each stage, component lifting, connection, and cast-in-place node construction are carried out sequentially.Construction Sequence
Follow the principle of "underground before above-ground, structure before enclosure, prefabrication before cast-in-place," with the overall sequence being: underground structure construction → installation of prefabricated components for the main structure → enclosure structure construction → roofing works → interior decoration → exterior works and completion.Construction Machinery Allocation
The main equipment includes 2 25-ton truck cranes, 1 50-ton truck crane (for large components), 1 tower crane (covering the entire area), 1 concrete pump, and surveying instruments (total stations, level gauges, etc.). All equipment must be inspected before entering the site to ensure good performance.
Construction Preparation
- Technical Preparation
- Organize drawing review and detailed design to clarify component dimensions, connection methods, and reserved hole locations, which shall be used for production and construction after confirmation by the design unit.
- Prepare construction organization designs and special plans (such as for lifting, formwork, and scaffolding works) and organize expert arguments. Conduct technical briefings for construction personnel, emphasizing processes, quality standards, and safety precautions.
- Establish a surveying control network, complete site leveling, axis positioning, and elevation transfer to provide a benchmark for the installation of foundation caps or floor slab components.
