Steel and plate are the main components of steel structure workshop, accounting for about 70%-80% of the total cost of steel structure workshop. The fluctuation of the market price of steel structure raw materials directly affects the cost of steel structure workshop. There are also great differences in the material of section steel, the price of bearing surface and the material and thickness of coaming. Raw material of steel structure are that main factors that affect the cost of steel structure workshop.
The foundation cost is closely related to the geology where the steel structure workshop is located. The foundation construction period accounts for about 25% of the total construction period of the workshop, and the foundation cost is 15% of the total construction cost of the steel structure workshop. In the design, we should pay attention to the geological report of the factory building, choose a reasonable foundation type and control the bearing surface and buried depth of the foundation, which has played a positive role in the total cost of the steel structure factory building.
Rectangular section beam is the most common flexural member, which is often used in design, but the material utilization rate is very low. First, the stress of materials near the neutralization axis is low; Second, the bending moment of the beam varies along the length of the beam. Due to the low stress in most sections of beams with equal cross-section, materials can not be used well, and the utilization rate of materials can be improved only when the shaft is stressed.