1. Since the I-shaped cross-section dimensions are relatively high and narrow, the moment of inertia of the two main sleeves of the cross-section is quite different. Therefore, it can generally only be used directly for components that are bent in the plane of their webs or for bending. It is composed of lattice structure stress-bearing components. It is not suitable to use axial compression members or members that are perpendicular to the web plane and are curved, which greatly limits its application range.
2. The flanges of H-shaped steel are all of equal thickness, including rolled sections and combined sections composed of three welded plates. I-beams are all rolled sections. Due to poor production technology, the inner edge of the flange has a slope of 1:10.
3. From the appearance point of view, the angles of H-shaped steel and stainless steel I-beam are different. H-shaped steel is right-angled, while stainless steel I-beam has rounded corners. From the appearance point of view, H-shaped steel is H-shaped, while stainless steel I-beam is rounded. I-shaped, since the designer designed it this way, there must be a certain reason.
4. The I-beam flange has a variable cross-section, which is thicker on the web and thinner on the outside. The flange of H-shaped steel is of equal cross-section.
5. Different from the ordinary I-shaped steel, the flange of the H-shaped steel is not widened, and the inner and outer surfaces are usually parallel, which makes it easy to use high-strength bolts to connect with other components. Its size series is reasonable and the models are complete, which is convenient for design and selection.
