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Steel member
Industrial product
Steel members refer to the use of steel plates, Angle steel, channel steel, I-steel, welding or
Hot rolled H-shaped steel
Cold-formed or welded steel structural components connected by connectors that can withstand and transfer loads.
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- Chinese name
- Steel member
- Advantage point
- Light weight, factory manufacturing, fast installation, short construction period, good seismic performance, fast investment recovery, etc
catalogue
Steel component system has the comprehensive advantages of light weight, factory manufacturing, fast installation, short construction period, good seismic performance, fast investment recovery, less environmental pollution, etc. Compared with reinforced concrete structure, it has the unique advantages of "high, large and light" three aspects of development, in the global scope, especially in developed countries and regions. Steel components have been used reasonably and widely in the field of construction engineering.
Practice shows that the greater the force, the greater the deformation of steel members. However, when the force is too large, the steel member will fracture or serious and significant plastic deformation, which will affect the normal work of the engineering structure. In order to ensure that engineering materials and structures work normally under load, each steel member is required to have sufficient load bearing capacity, also known as carrying capacity. The size of the bearing capacity is mainly measured by the sufficient strength, stiffness and stability of the steel member.
Sufficient strength
Strength refers to the ability of a steel member to resist damage (fracture or permanent deformation). That is, no yield failure or fracture failure occurs under the action of load, ensuring the ability to work safely and reliably. Strength is a basic requirement that all bearing components must meet and, therefore, is the focus of learning.
Sufficient stiffness
Stiffness refers to the ability of a steel member to resist deformation. If the steel member has too much deformation after being stressed, it can not work normally even if it has not been damaged. Therefore, steel members must have sufficient stiffness, that is, stiffness failure is not allowed to occur. The stiffness problem has different requirements for different types of components, and relevant standards and specifications should be consulted when applied.
stability
Stability refers to the ability of steel members to maintain the original equilibrium form (state) under the action of external forces.
Loss of stability is the phenomenon that when the pressure increases to a certain extent, the steel member suddenly changes the original form of balance, referred to as instability. Some thin-walled components under pressure may also suddenly change the original form of balance and become unstable. Therefore, these steel members should be required to have the ability to maintain their original form of balance, that is, to have sufficient stability to ensure that they will not be destabilized and destroyed under the specified conditions of use.
The pressure rod instability generally occurs suddenly and is very destructive, so it is necessary to make the pressure rod have sufficient stability.
To sum up, in order to ensure the safe and reliable work of steel components, components must have sufficient bearing capacity, that is, have sufficient strength, stiffness and stability, which is to ensure the safe work of components of the three basic requirements.
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