Why are most warehouses built with steel structures now?

From the perspective of material cost alone, the cost of steel structure is much higher than that of concrete structure. Then why choose the steel structure as the structural main body of the warehouse building? The main reasons are as follows:

1. Although steel structures are generally more expensive than concrete structures in terms of cost, compared with traditional concrete structures, steel structure warehouses have incomparable advantages in terms of construction and comprehensive benefits. Such as light weight, low foundation cost, good earthquake resistance, easy repair after disaster, recyclable and renewable materials, energy saving, land saving and water saving. On the one hand, these advantages enable the owners to reduce investment risks and speed up capital circulation, which is very beneficial to sales and capital withdrawal. On the other hand, for the owner, the construction period is short, the construction is not affected by the climate and seasons, and the processing and on-site installation can be performed simultaneously.

2. Environmental protection. Steel structure materials can be recycled almost 100%, which greatly reduces the generation of construction waste.

3. Due to the light weight and high strength of the steel structure, under the same span, the height of the structural beam and the section of the column are smaller than that of the concrete. If the planning height is limited, there will be more usable area. For example, if a long-span warehouse is replaced with a concrete structure, the actual usable area will be much smaller.

However, steel structures still have disadvantages:

1. It is necessary to pay attention to anti-rust. Some manufacturers only care about the cover and do not care about maintenance. Improper selection will bring great hidden dangers.

2. The fire resistance is poor, and it needs to be used as a fireproof surface layer.

3. The deformation is large. If the design scheme is not optimized, it is easy to cause the super steel structure warehouse to feel shaking more obviously in windy days.