If you have no confidence in the fixing of channel steel, you need to add vertical channel steel support to the ground at the position of the rung. When the rung is fixed, not every main keel needs vertical channel steel support. If it is not more than 6m, there are two or three supports on one side. The steel bar itself should not be welded by two sections, but must be integrated.
There are three main fixing methods:
1. It is made of angle steel on the wall, locked on the wall with expansion screws, and then fixed on it with channel steel. It can also be fixed by planting reinforcement. This method is only limited to the places where the walls at both ends are load-bearing walls or just have beams passing by. Fix them on the wall with expansion screws, and the spacing of expansion screws shall not exceed 200mm.
2. First, punch a hole in the wall, then extend the channel steel into the wall, and the wall directly bears the weight of the channel steel. This method is limited to load-bearing walls or thick shear walls. Another method is to directly erect another channel steel to support the horizontal channel steel, and the vertical channel steel shall be fixed on the wall. In this method, the bearing capacity of the floor slab where the vertical channel steel is located should be considered, and multi-point distributed support should be adopted instead of concentrating the force on a few channel steel,
3. The practice requires the use of channel steel instead of angle steel as a practice. It is generally fixed on the long sides. If the long sides are laid in parallel, it can also be laid with the short sides without fixed conditions.
The rolling of plate and strip steel is easy to understand. It is simple to roll the upper and lower rolls. H-beam, like its name, is like an H letter. How is such a complex shape of steel rolled? This requires a special rolling technology, which we call pass rolling.
The square billet is first rolled into an approximate H-shape by a two roll billet opener with a pass. The red part is the cross-sectional shape of the square billet after entering each corresponding pass position.
The above is the detailed introduction about the direct selling of Jinan angle steel manufacturers. I hope it will help you If you have any questions, please contact us We will provide service for you with our attitude http://www.msmpoz.com