1. The structure has high strength and a large section modulus. Compared with ordinary I-beams, it can save 10-15% of metal under the same bearing conditions.

2. The design style is flexible. When the beam height is the same, the opening of the steel structure can be 50% larger than that of the concrete structure, making the building layout more flexible.

3. Compared with the self weight of concrete structures, the self weight of structures is lighter, reducing the internal forces of structural design, lowering the basic processing requirements of building structures, simplifying construction, and reducing costs.

4. The cross-sectional shape is economically reasonable, with good mechanical properties, and the extension of each point on the cross-section is uniform during rolling. Low internal stress and high cross-sectional modulus.

5. High stability, easy processing, use of H-beam can protect the environment, high degree of industrial production, and fast construction speed.