Prefabricated Assembly-Type Housing in Jinan

The development of prefabricated assembly-type housing in Jinan has been rapid, achieving remarkable results in policies, technologies, standards, and application scenarios.

Solid Policy Support and Industrial Foundation: As one of the first pilot cities for housing industrialization and prefabricated construction in China, Jinan has issued the "Implementation Opinions on Comprehensively Promoting the High-Quality Development of Green Buildings" and established a "1 + N" policy system to drive the large-scale development of prefabricated construction. Currently, it has cultivated 10 national prefabricated construction industrial bases and 20 Shandong provincial new building industrialization bases. The proportion of newly started prefabricated construction projects has exceeded 50% for three consecutive years, forming a complete industrial chain layout.

Outstanding Technological Innovation Achievements:

• Structural System Optimization: Shandong Vastda Technology has developed the "Steel Tube Truss Prestressed Concrete Composite Slab," which significantly enhances stiffness and steel bar tensile strength by combining steel tube trusses with prestressed technology, reducing construction costs and improving efficiency.
• Underground Construction Breakthroughs: The Jinan Civil Air Defense Architectural Design Institute has developed the "Underground Building Integrated Prefabricated Concrete Structure," which uses standardized components and mature construction techniques to reduce wet work volume and formwork support, enhancing the assembly level of underground spaces.
• Smart Manufacturing Upgrades: Shandong Guoshun Construction Group has built China's first intelligent manufacturing production line for steel structures, achieving full-process automated production. Component precision errors are controlled within 0.5 millimeters, and on-site assembly speed is 30% faster than traditional concrete buildings, significantly shortening construction periods.

Scientific and Standardized Standard Setting: After expert论证 (demonstration), Jinan has specified that the floor height of prefabricated residential buildings should preferably be 2.9 meters, providing standardized references for design units and ensuring building functionality and comfort.

Strong Adaptability of Technological Characteristics to Application Scenarios:

• Modular Design and Efficient Assembly: Prefabricated integrated housing uses light steel or concrete prefabricated components, combined with integrated wall panels, and employs BIM technology for detailed design to ensure component precision and installation compatibility. The structural system mainly uses bolt connections or dry operations, reducing on-site wet work and minimizing construction waste generation.
• Green Energy Efficiency and Climate Adaptability: Integrated water and electricity pipeline pre-installation techniques shorten construction periods. Some high-end products incorporate passive energy-saving designs, such as high-performance envelope structures and airtight layers, to improve energy efficiency. Standardized production processes mitigate climate impacts, making them particularly suitable for Jinan's distinct seasons and concentrated rainy seasons.
• Wide Range of Application Scenarios: Widely used in temporary resettlement, rural revitalization, industrial park support facilities, and other fields, it has become an important direction for green building development due to its advantages of short construction periods, controllable quality, and environmental protection and energy efficiency.