Thickness Requirements for Prefabricated Panel Houses

The thickness requirements for prefabricated panel houses need to be determined based on the specific structural type and purpose, mainly involving three parts: the prefabricated panels themselves, the house walls, and the brick胎膜 (brick formwork). The specific requirements are as follows:

1. Thickness of the Prefabricated Panels
The thickness of the prefabricated panels should be selected according to the building type and load requirements:

• Residential Buildings: For ordinary low-rise or multi-story residential buildings, a common thickness of 120-150 millimeters is used, which can meet conventional spans (up to 4.2 meters) and load requirements. For duplexes or villas with larger spans or increased loads, the thickness is usually increased to 150-200 millimeters.
• Commercial Buildings: For office buildings and other structures with higher loads, the thickness of the prefabricated panels is generally above 120 millimeters (the specific upper limit is not explicitly mentioned but needs to be determined based on load calculations). For shopping malls or supermarkets with dense crowds and heavy loads, the thickness is often between 150-200 millimeters.
• Industrial Buildings: For factory buildings or warehouses with heavy equipment loads, the thickness of the prefabricated panels is usually above 180 millimeters (the specific upper limit is not explicitly mentioned and needs to be designed in combination with the equipment weight). For special scenarios such as underground garages that need to withstand soil pressure and water pressure, the thickness can reach 300-400 millimeters.
• Standard Specifications: The width of prefabricated panels is mostly 500 millimeters or 600 millimeters, with common thicknesses of 120 millimeters and 150 millimeters, and a maximum span of 4.2 meters.

2. Thickness of the House Walls in Prefabricated Panel Houses
The wall thickness should be selected according to the function and building type:

• 75-millimeter Wall: Mainly used for interior partitions to divide spaces without bearing structural loads.
• 90-millimeter Wall: Suitable for exterior wall insulation layers, balancing insulation performance and structural lightweighting.
• 100-millimeter Wall: Used for exterior wall insulation and the construction of light-weight houses, such as low-rise residential buildings or temporary structures.
• 120-millimeter Wall: Suitable for heavy industrial buildings, such as factory buildings or warehouses, that need to withstand heavy loads or wind pressure.

3. Thickness of the Brick Formwork When Using Prefabricated Panels
As a temporary formwork for concrete pouring, the thickness of the brick formwork needs to be determined according to engineering requirements:

• Common Specifications: 90 millimeters, 100 millimeters (i.e., 9 centimeters or 10 centimeters), 120 millimeters, 200 millimeters, etc.
• Selection Basis: It needs to be designed in combination with factors such as soil conditions, groundwater level, and concrete lateral pressure. For example, soft soil foundations or deep excavations require thicker brick formwork to prevent deformation; ordinary excavations can use a thickness of 90-120 millimeters.

Summary: The thickness of prefabricated panel houses needs to be determined by considering the building type, load requirements, and functional positioning. During the design process, reference should be made to regulatory requirements, and structural calculations should be conducted to verify safety, avoiding deformation or cracking due to insufficient thickness or increased costs due to excessive thickening.