Скачать или смотреть Why is H-beam more popular than I-beam?

1. Wide and uniform flange thickness: The flange (upper and lower horizontal parts) of H-beam is wider and uniform in thickness than that of I-beam, and the bending stiffness is significantly improved (under the same weight, the moment of inertia of the H-beam section is 20%~40% higher than that of I-beam).
2. The web and flange are connected at right angles: the stress distribution is more uniform, avoiding the local stress concentration caused by the oblique flange of the I-beam, and it is more suitable for bearing multi-directional loads (such as earthquakes and wind loads).
3. High hoisting stability: The wide flange design makes it less likely to twist during hoisting, especially suitable for the installation of large-span beams and columns.
4. Light weight but high strength: Under the same bearing capacity, H-beam can reduce the weight of I-beam by 15%~30%, reducing the amount of steel and transportation costs.
5. Modern building needs: high-rise buildings, large-span factories, bridges, etc. rely more on the stability and lightweight of H-beams, while I-beams are mostly used for secondary components or traditional buildings.
#beam #pipe #factory #manufacturing