What is the “5+2” Construction System?
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△ A real view of Vanke’s “5+2” construction system project
5+2 = Five major construction methods + Two key prefabricated applications
The Five Major Construction Methods
1. System Templates
The main structure utilizes molds and factory-processed templates, enhancing construction quality, efficiency, and precision, while significantly reducing energy consumption.
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2. Full Concrete Exterior Walls
Exterior walls are cast with continuous concrete pouring, eliminating traditional masonry and plastering. This approach reduces hollowing and cracking, and lowers the risk of water leakage at wall-window junctions.
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3. Prefabricated Interior Partition Walls
Lightweight partition strips are used for interior walls, requiring no plastering and minimizing common issues like hollowing and cracking. This method speeds up construction and is less impacted by weather, saving labor and improving overall quality.
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4. Climbing Frame Construction System
This system uses an integrated intelligent lifting and anti-assembly structure to safeguard the prefabricated platform’s operation. It saves time and enhances safety compared to traditional scaffolding dismantling.
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5. Interspersed Efficiency Improvement Construction
The construction workflow is overlapped effectively, reducing the overall project duration without shortening individual process times.
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The Two Major Prefabricated Applications
1. Prefabricated Decoration
Decoration components such as dry floor heating, integrated bathrooms, and integrated kitchens are prefabricated and installed, streamlining the finishing process.
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2. Moderate Prefabrication
This includes prefabricated buildings, staircase partition boards, equipment panels, laminated floors, and other prefabricated components, enhancing construction standardization and efficiency.
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Vanke’s experience with prefabricated construction has shown that the combination of full concrete exterior walls, prefabricated interior partitions, system templates, climbing frames, and interspersed efficiency improvement forms an effective and streamlined construction method. This “5-piece” approach, along with the two prefabricated applications, serves as the foundation of Vanke Group’s prefabricated system requirements.
With a focus on standardized design, factory production, prefabricated construction, and information management, Vanke plans for all its residential projects to fully adopt the “5+2” construction system by 2021.
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