Brackets are usually divided into standard, reinforced and super brackets. In addition, there are also slope brackets specially designed for slope installation. The surface is galvanized to prevent rust, and the thickness of galvanized layer meets the requirement of 8-12μm; the adhesion of galvanized layer reaches the highest level of 0; salt spray test for 72 hours, no rust corrosion phenomenon. The floor support beam is made of standard square tube, and the supporting beam is divided into standard beam, open beam and extended beam. Diagonal brace, cross-tie and hoop are used as auxiliary connections of the bracket, which are generally used with super high and super strong bracket and grounding of the machine room to enhance the stability of the floor installation structure and equipotential grounding requirements. The new U-shaped bracket has stronger load-bearing capacity and more stable support system, which is suitable for the area with complex site environment and high load-bearing requirements.