1. Steel beams can be used for crane beams and working platform beams in steel structure factories, floor beams in multi-story buildings, and purlins in roof structures. The shear resistance of steel beams can also be calculated according to relevant formulas in material mechanics. For simplification, it is usually assumed that the shear force is fully borne by the calculated cross-section of the web plate on average. The web of the section steel is relatively thick, and its shear strength generally meets the design requirements.
2. Steel columns can usually be divided into axially compressed columns and eccentrically compressed columns according to their stress conditions. The function of battens and battens is to connect the column limbs of lattice columns as a whole, ensuring that each column limb bears the same force and bears the shear force perpendicular to the imaginary axis of the column. The batten and column legs form a planar truss system, and under the shear force of the column, the batten and column legs will only bear axial force, with generally high stiffness.
3. Steel truss refers to the roof structure, crane beams, bridges, and hydraulic gates of industrial and civil buildings made of steel. Trusses are widely used in steel structures, such as in industrial and civil buildings' roofs (roof trusses, etc.) and crane beams (i.e. crane trusses), bridges, cranes (their towers, beams or arms, etc.), hydraulic gates, and offshore oil production platforms. Steel trusses are commonly used as the main components of load-bearing structures.