Steel structure parts

The selection design of steel structure beam and column is a key step in construction engineering, which directly affects the stability, safety and economy of the structure. The following are some key factors to consider when designing the selection of steel structure beams and columns:

Load and mechanical properties: Determine the type and size of loads on the structure, including conventional loads (such as floors, snow loads, wind loads), temporary loads (such as loads during construction), etc. Based on these loads, mechanical properties are analyzed, including bending, shearing, axial force, etc.

Type of building structure: The type of structure (such as frame structure, truss structure, cantilever beam structure, etc.) will affect the selection of beams and columns. Different structure types have different requirements for load bearing mode and distribution.

Structural height and span: the height and span of the structure will affect the size and cross-section shape of the beam and column. Tall buildings and long-span structures may require stronger and higher beam-column sections.

Use environment: Consider the environmental conditions of the structure, such as climate, altitude, corrosive environment, etc. Different environments have different performance and protection requirements for steel structure parts.

Fire resistance requirements: Some buildings may have special requirements for fire resistance, such as high-rise buildings, public places, etc. In this case, the design of the beam and column needs to consider fire retardant coatings or other fire prevention measures.

Material selection: Select the appropriate steel material, including strength, toughness, corrosion resistance and so on. Commonly used structural steels include Q235, Q345 and so on.