Basic requirements for foundation of steel structure buildings

In any building, the basic work is the foundation construction. Now many buildings begin to use steel structure, so what are the basic requirements for the foundation of steel structure buildings?

The foundation of steel structure can be made of pebbles with a diameter of 5~20mm. The cement is 32.5 grade ordinary Portland cement. The grade of concrete is C30. The mix ratio is cement: sand: stone=406KG: 685KG: 1120KG. Then mix, mix and polish the foundation. The height Z of the steel structure column is 1.2m higher than the ground, and the steel column is connected above it.

Because steel structure buildings use beams and columns as the main load-bearing components, and most of the foundations use pile caps, independent foundations and other single foundations with high stiffness, the foundation has a certain impact on the steel structure.

Even if some of the foundations lose stability or quit the work due to the foundation or the foundation itself, the superstructure will first redistribute the internal force, and can continue to work for a period of time, without immediate overall collapse.