beam refers to the beam processed with steel. Generally, hot rolled steel beam
(H-beam or I-beam) or steel plate welded to form composite beam (welded H-steel
or variable cross-section steel) plays an important role in supporting all the
weight of components and roof in the upper structure of buildings. It is an
important part of steel structure buildings.
H-beam: after heating, the billet is rolled several times, then cut and corrected into
section steel, mainly H-beam and I-beam. However, due to the fixed
specification and length, the application scope of this kind of steel beam is
section steel beam: according to the stress analysis, the larger section is
adopted at the place with larger bending moment, and the smaller section is adopted
at the place with smaller bending moment, so as to save materials and reduce
the weight of steel beam, and ensure the safety and economy at the same time.
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