As the primary building material for steel structure industrial buildings, light steel structures directly affect the stability of the main structure and the overall quality of construction projects in actual application.

The actual needs of different types of industrial buildings are different. Designers must combine the exact situation when applying and designing them to ensure the scientificity, rationality, and standardization of the design scheme and improve the overall level of industrial building design.

Design principles of light steel structure industrial buildings:

1. Strength and stability

The structure should have sufficient strength and stability to withstand loads and maintain its shape and stability.

2. Material selection

Select suitable light steel materials, such as light C-shaped steel, cold-bent thin-walled steel, etc., with necessary properties such as tensile, compression, and bending resistance.

3. Structural connection

Use appropriate connection methods, such as bolts, welding, etc., to ensure that the connection strength meets the design requirements and consider the convenience of disassembly and reconstruction.

4. Fire protection requirements

Consider the structure’s fire resistance under fire conditions and adopt corresponding fire protection measures, such as fire retardant coatings, fireproof boards, etc.

5. Earthquake resistance requirements

Depending on the earthquake zone’s earthquake resistance design requirements, appropriate earthquake resistance measures, such as strengthening nodes and adding earthquake resistance supports, should be taken.

6. Scalability

Considering the future expansion and renovation needs, the design structure should have scalability and flexibility.

7. Economy

On the premise of meeting the structural safety requirements, minimizing the use of materials, reducing engineering costs, and considering the maintenance and operation costs of the structure.

8. Feasibility and manufacturability

The design for steel structure industrial buildings should comply with the manufacturing process and construction conditions, be easy to implement, and meet the building design and use requirements.

Roof design for steel structure industrial buildings

When designing the roof of a light steel structure, designers need to pay attention to the following points.

1) The roofing materials in light steel structure industrial buildings include space steel plates, corrugated steel plates, and others; the more widely used ones include metal corrugated composite insulation boards, sandwich panels, and metal corrugated boards.

In the actual application process, designers need to select building materials and slopes based on actual conditions reasonably.

2) In most industrial construction projects, there is a specific relationship between roof drainage and roof slope, and the drainage effect will improve as the slope increases.

It should be noted that the roof slope cannot be increased infinitely to improve the drainage effect of the roof because a large slope may cause splashing problems; but if the slope is too slight and the drainage speed is too slow, the slope cannot be fully utilized, and water accumulation problems will occur.

3) Designers need to fully understand the construction project’s actual needs and select appropriate roofing materials based on actual conditions to avoid improper material selection, leading to industrial building quality failing to meet standards.

4) Designers should reasonably design and control the metal corrugated steel plate roof structure, including a reasonable selection of plate type, roof opening method, and light strip setting.

2. Wall design for steel structures in industrial buildings

The walls can generally be divided into self- and non-bearing light walls. According to their positions, they can also be divided into interior and exterior walls.

Currently, the wall materials used in most industrial buildings are mainly lightweight materials, including metal corrugated sandwich panels, metal corrugated panels, and PC panels.

When choosing the type of wall material, designers must consider various factors comprehensively and make reasonable choices based on the project’s actual needs and conditions.

They must ensure the wall materials’ applicability, fully play their role and ensure the wall’s load-bearing and safety.

When designing the metal corrugated wall system structure, designers need to pay full attention to the length selection of the corrugated board and the design of the detailed structure of the steel plate wall system and take corresponding measures to avoid the long overlap of the corrugated board as much as possible to save construction materials.

In addition, designers must also comprehensively consider the node practices and structural layout of the sandwich panels to ensure the scientificity and rationality of the placement method.

3. Mezzanine structure design for steel structure industrial buildings

The mezzanine structure design differs from the ordinary structure design in industrial building design. It has the function of an ordinary sandwich and the characteristics of the light steel structure itself.

Designers need to increase the height of the original main structure of the building to strengthen the light steel structure, thereby optimizing the main structure. Since the steel structure is lightweight and has low rigidity, designers must reasonably design the horizontal and vertical supports based on actual conditions to ensure stability.