H-beam conventional classification
Wide flange HW (Wide): that is, the flange width of H-beam and H-beam height of the basic zd. Mainly used for steel core column in reinforced concrete frame structure column, also known as reinforced steel column; mainly used for column in steel structure.
Middle flange HM (Middle): the flange width of H-beam is slightly smaller than the height of H-beam, and the ratio of H-beam height and flange width is roughly 1.33~~1.75, mainly used in steel structure: used as a frame beam for steel frame columns in the frame structure subject to dynamic load; for example: equipment platform.
Narrow flange HN (Narrow): that is, the flange width of H-beam is much smaller than the height of H-beam.HN is the ratio of the height and flange width of H-beam is greater than or equal to 2; it is mainly used for beams.
I-beam, as the name suggests, is a kind of "I"-shaped cross-section steel, the upper and lower flanges of the inner surface of the inclination, generally 1:6, so that the flanges outside the thin and inside the thick.
Thin outside and thick inside, thus resulting in I-beam in the two main planes of the cross-section characteristics of the huge difference in the application of the strength characteristics of the difficult to play just now. Although
Although thickened I-beams have appeared in the market, the structure of I-beams has determined its torsional performance short board.
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