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How much is the thickness of the floor usually chosen? General floor manufacturers are not standard. In fact, the thickness of the multi thick base plate is mainly determined by the thickness of the floor and the spacing between the secondary beams. This calculation has technical content. It is based on the section modulus of the floor plate, the calculation of the section moment of inertia and other relevant information, and then the judgment basis of the general situation as follows:
Firstly, the characteristics and design requirements of these two kinds of floor are introduced
First, turn on the floor. This floor slab is mainly used as formwork, and its requirement is not to rust in the construction stage and collapse deformation is not allowed in the construction stage. Generally speaking, our zinc content is no less than 80g, but due to market competition, some products produced by steel mills are only 40g, or the design institute does not need zinc content in architectural design. This further enhances the most common galvanized coil used in a wide variety of small buildings.
2、 Silent floor. As part of the floor bearing capacity, the design institute will have material requirements and galvanizing requirements (Q345B material, 275g). However, in fact, some of our customers will reduce the use requirements of materials.
Finally, this paper provides you with a summary. The thickness of the bottom plate mainly depends on the thickness of the floor and the secondary beam of the spacing. This calculation technology is based on the section modulus of the floor plate, the calculation of the section moment of inertia and other relevant information. It is just the judgment basis for the general situation
1、 Under normal conditions, the spacing between steel beams is within 2m, and the thickness of bearing plate of bottom plate is 0.75-0.8mm.
2. 2-2.5m floor thickness 0.8-1.0.
3、 The thickness of the slab with a span of 3-4m is 1.5mm, and the span with a span of more than 5m is finally supported temporarily.
The above is only considered from the perspective of plate thickness, without fully considering the shape, strength and other factors. Another factor that we often ignore is that the quality of the screw also determines the thickness of the floor. The better the screw, the stronger the bearing capacity of the floor.
The above is the judgment basis of floor thickness, hope to help you.