Many people think it is calledMiner steelsteel, and is referred to as H-shaped steel material abroad. In fact, this understanding is incorrect.

The shape of H-shaped steel material is different from miner steel, which is a single "I" beam. The inner surfaces of the upper flange and lower flange have a slope, usually 1:6, making the flange thin on the outside and thick on the inside. The characteristics of the cross-section of the main plane differ greatly, making it difficult to fully utilize the strength characteristics in applications. Although thickened miner steel has also appeared in the market, the structure of miner steel determines its short torsion plate. H-shaped steel materials are widely used in today's steel structure buildings and have many differences compared to miner steel. A single flange plate has a non-sloping inner surface, and the upper and lower surfaces are parallel. The cross-sectional performance of H-shaped steel materials is significantly better than that of traditional miner steel, channel steel, and angle steel. The content on metal processing WeChat is good and worth following.

H-shaped steel materials are single, economically efficient profiles, with a more optimized cross-sectional area distribution and a more reasonable strength-to-weight ratio. The two outer edges of H-shaped steel materials have no slope; they are straight. This makes welding and splicing H-shaped steel materials easier than miner steel, and the mechanical performance per unit weight is better, saving a lot of materials and construction time. The cross-section of the I-beam has good resistance to direct pressure and tension, but due to the narrow flange plates, the cross-sectional dimensions cannot resist torsion. In contrast, H steel has its advantages and disadvantages.

Differences between H-shaped steel materials and miner steel:

1. Miner steel is ordinary or light type. Due to the relatively high and narrow cross-sectional dimensions, the moment of inertia of the two main sleeves in the cross-section differs greatly. Therefore, it can only be used directly. The assembly of sloping arc components or components formed by lattice-type stress assemblies. It is not suitable for axial compression components or components that are perpendicular to the web plane and sloping arcs, so its application range is very limited.

2. H-shaped steel materials are single, efficient, and economical cutting profiles (others include cold-formed thin-walled steel, profiled steel plates, etc.). Due to the reasonable cross-sectional shape, they can make steel more effective and improve cutting capacity. Unlike ordinary I-beams, the flanges of H-shaped steel materials are widened, and the inner and outer surfaces are usually parallel, making it easy to connect with other components using high-strength bolts. The size composition series is reasonable, and the models are complete, making it convenient for design and selection.

Due to the relatively high and narrow cross-sectional dimensions of ordinary and light I-beams, the difference in the moment of inertia of the two main sleeves in the cross-section is significant. Sloping arc components or lattice stress components are formed. It is not suitable for axial compression components or components that are perpendicular to the web plane and sloping arcs, which makes its application range very limited. The use of I-beams should be selected according to the requirements of the design drawings.