Steel Beams made of steel. Steel beams can be used in crane beams and working platform beams in factories, in floor beams in multi-storey buildings, and purlin in roof structures.
steel beams are manufactured in two configurations. Both are constructed with a vertical web in the center of the beam, with horizontal flanges on top and bottom. The structure of the beam provides superior load-bearing support.
[Steel beam classification]
Type steel Beam
1)Made of hot-rolled molding of I-I or Groove steel (see hot-rolled steel), light beams such as purlin can also be used in cold bending molded Z-shaped steel and groove steel.
2)The type steel beam is simple to process and inexpensive, but the section size of section steel is limited by certain specifications.
3)When the load and span are large and the section of section Steel can not meet the requirements of strength, stiffness or stability, the composite beam is used.
1)Welded or riveted by steel plate or steel.
2)As a result of riveting laborious fee, often welded mainly.The commonly used welded composite beam is a working section and a box section composed of upper and lower flange plates and webs, the latter being more expensive, and the production process is more complex, but it has a large flexural stiffness and torsional stiffness, which is suitable for the case of lateral load and high torsion resistance or limited beam height.
【Steel beam design and calculation】
The size of the steel beam cross section must be calculated and determined, and meet the strength, overall stability and stiffness of the three main requirements. The first two guarantee the safety of steel beams in use, while the latter guarantees that they will not produce excessive deformation for normal use.
In addition to meeting the above three requirements, the section size of composite beams must also meet the local stability requirements of each component.
The thickness of hot-rolled steel section is larger, and local stability can generally be guaranteed.
Widely used in the construction industry to provide support for buildings and load-bearing walls. They are available in a variety of standard sizes and selected based on the applied load for the required application.