The use of steel structure and some notes about the quality of steel structure

Currently, steel structure is commonly used in building constructions. Let's look at the article below to find out about construction that requires steel structures, as well as notes about steel structure building.

1. The use of a steel structure

1.1 Steel frame industrial buildings

Steel frame industrial building is a type of building made with steel reinforcement. This type of building is commonly used in building warehouses, factories, offices, supermarkets and so on. 

Industrial buildings are made out of solid steel materials and can bear large loads. In order to create a solid frame, construction companies need to use the below reinforcement:

• Steel framework
• Steel columns
• Steel roof
• Steel beam supporting crane
• Other steel details 

1.2 High-rise buildings

In high-rise buildings, especially tower-shaped buildings with over 20 and 30 floors, the columns must bear a considerable load. These columns must be constructed with great solidity, which requires steel frameworks rather than reinforced concrete. Using bearing steel is an appropriate solution to maintain super high-rise buildings. Currently, high-rise buildings require steel-concrete composite structures (including steel columns wrapped or filled with concrete, and steel floor-beam composite). This structure has many positive impacts on the ability to bear large loads as well as resist the fire of the construction.

1.3 Infrastructure buildings like roads and bridges, oil and gas tanks, towers, and so on

Road bridges and railway bridges with medium or large spans need making of steel to be completed in a short time. Some suspension bridges can be made with large spans of more than 1000m. 

High towers like power poles, radio antenna masts, survey towers, oil drilling towers, or some other unique structures need making of steel because the material is light and easy to be transported and erect.

2. Some notes about the quality of steel structure buildings

2.1 Examining the quality of foundation bolts

• Before setting bolt connections on the construction's foundation, engineers must examine the drawing thoroughly to determine techniques and locations.
• Bolt connections should be fixed in the formwork or steel bars to ensure that they do not move and bolt connections are not damaged while the concrete is poured into the formwork.
• The height and distance between bolt connections need to be aligned carefully so that errors are acceptable. Construction contractors also need to check these numbers again carefully before handing over with specialized machines.

2.2 Examining the quality of the components

Fabricating factory

The procedure of manufacturing steel reinforcement includes cutting, welding, assembling, painting protective coating, anti-rust, and so on. Construction contractors need to strictly follow the process, checking carefully to ensure that the reinforcement products are perfect and qualified for the building. Check the operation of machines and equipment in the factory.

2.3 Welding techniques and quality of welds

• Welders must be professional and skillful. They must learn instructions thoroughly and know how to use electrodes safely.
• Welds must meet particular requirements regarding cracks, holes, and slag on the surface of the products.
• Check the welds carefully and have appropriate solutions to fix the errors. Welds with more than two errors must be detected.

2.4 The quality of steel structure during the erecting

• Firstly, it is necessary to check the reinforcements and components manufactured and delivered to the place. Any deformations or damage during transportation must be repaired. 
• Check the foundation carefully before setting up columns to avoid broken bolt connections and steel frames being damaged. 
• Implement support measures for column and frame systems during the process of building the constructions.

Above is all of BMB Steel's writing about steel structure and some notes about examining the quality of pre-engineered steel buildings. We hope that this article is helpful for you. If you have any further questions, please feel free to contact us.