Gaoping Cement Prefabricated Housing Structure

The Gaoping cement prefabricated housing structure primarily adopts an assembled monolithic concrete frame structure or a frame-shear wall structure, combining factory-prefabricated core components with on-site post-cast nodes to form an efficient and stable building system.

Structural Types and Component Segmentation

In Gaoping City, cement prefabricated housing mainly uses assembled monolithic concrete frame structures, with some adopting frame-shear wall structures. Core components such as columns, beams, and slabs are prefabricated in factories, with node areas connected through post-cast concrete to achieve overall integration. Specific segmentation methods are as follows:

• Columns: Segmented one per floor, with common cross-sectional dimensions of 400 mm × 400 mm or 500 mm × 500 mm to ensure vertical load-bearing capacity.
• Beams: Main beams are segmented at mid-span, with cross-sectional dimensions of 300 mm × 600 mm; secondary beams have cross-sections of 250 mm × 500 mm to accommodate different span requirements.
• Floor Slabs: Adopt a composite slab form, consisting of a 60 mm thick prefabricated base slab and an 80 mm cast-in-place layer, totaling 140 mm in thickness, balancing prefabrication efficiency with cast-in-place integrity.
  Additionally, non-core components such as stairs, balconies, and air conditioning panels are also fully prefabricated, reducing on-site wet work and enhancing construction efficiency.

Connection Technologies and Stability Assurance

Connection technologies between components are crucial for ensuring overall structural stability:

• Column-to-Column Connections: Utilize sleeve grouting connections, where high-strength grout fills the gap between the sleeve and reinforcing bars to achieve reliable load transfer in vertical components.
• Beam-to-Column Connections: Employ a method using a hanger plate with post-cast concrete. The hanger plate serves as temporary support, while the post-cast concrete forms a rigid node, enhancing lateral resistance.
• Slab-to-Beam Connections: Reserved reinforcing bars (hooked bars) at the slab ends extend into the post-cast strip on the beam side, achieving reliable connections through bar anchoring and concrete pouring, preventing slab slippage.
  These connection methods have undergone rigorous calculations and experimental verification to ensure structural stability under seismic and wind loads.

Material Composition and Performance Advantages

Gaoping cement prefabricated housing uses concrete as the base material, with an embedded steel reinforcement framework and integrated multiple functional layers:

• Concrete Grade: Adopts C30-C40 grade concrete, with a compressive strength of 25-30 MPa, 1.5 times that of traditional brick-concrete structures, significantly improving structural durability.
• Reinforcement Configuration: Incorporates a Φ8-Φ12 steel reinforcement mesh, forming a bidirectional load-bearing system to enhance crack resistance and deformation capacity.
• Functional Integration: Some products are pre-embedded with insulation layers, waterproofing layers, and piping, reducing secondary construction and improving building energy efficiency and occupant comfort.

In summary, Gaoping cement prefabricated housing achieves a balance between building industrialization and structural safety through standardized component segmentation, reliable connection technologies, and the application of high-performance materials, providing an efficient solution for modern construction.