Construction solution of 2-layer steel structure layout will depend on each specific project, but will choose the most suitable layout of steel structure. Depending on the purpose of using different loads, the layout of the 2-layer floor structure is adjusted according to the internal force index of each project.
In the process of laying the 2-layer floor steel structure, it should be noted that the upper steel layer is subjected to negative shear moment at the short side. Steel that is placed perpendicular to the helmet steel will be under the hat steel and will not be tied until the millet is carried out so that the 2 layers of steel do not stick together.
For any building, the flooring is the focus of attention because any activity in the factory exerts a force on the floor. The floor must have good bearing capacity and elasticity for the factory to operate throughout for a long time. High quality flooring, durable, good load capacity, the design and selection of materials need to be put on top. The layout of the 2-layer steel structure is the most perfect choice at the moment.
The structure of 2-layer steel floor consists of 2 layers of solid steel on the bottom. In which, the lower layer has the effect of bearing negative moments and the upper layer of steel has positive moments.
Steel layer two floors possesses many advantages that reinforced concrete does not have. It is large bearing capacity with high reliability. Moreover, the weight is light and the span is large.
Floor steel structure has great mobility in transportation and erection. The projects with high industrialization are very suitable because of the fast construction time.
2-layer steel structure determines the bearing capacity directly affecting the stability of the building. The 2-layer steel floor ensures to avoid the phenomenon of cracking and causing danger to users, and also has sound and heat insulation.
2-layer steel structure increases durability for the floor to withstand high temperatures, good anti-hays. Compared to completely concrete structures, the floor has good waterproofing ability. The ability to create architecture to meet the creative ideas of specific works.
In order to arrange 2-layer steel structure in accordance with reasonable and effective standards for each item, it is necessary to adhere to the following steps:
Step 1: Prepare standard drawings
In this step, it is necessary to have a standard drawing from the design unit and consult carefully by a qualified engineer. Usually the basic content displayed on the drawing includes: Floor area, steel density per square meter, steel floor thickness, number of steel layers...
Step 2: Choose a quality floor steel structure
The quality of each steel bar, steel layer directly affects the quality of the 2-layer steel structure. Therefore, the stage of choosing raw materials is extremely important, it is necessary to invest in good quality steel, from a reputable supplier, which has been tested for safety for all projects.
Step 3: Make a plan to arrange the appropriate structure
In this step, depending on each project, choose the appropriate layout plan. Can be arranged 1 way or 2 way floor steel. To get the most optimal solution, it is necessary to consult with professional engineers to ensure the common technical standards for the whole project.
Step 4: Make a 2-layer floor steel structure layout
The implementation of the layout of the two-layer steel structure floor needs to follow the planned schedule and plan. This stage needs to comply with the set standards to ensure the overall quality of the project.
Step 5: Quality control implementation
Every project that wants to have good quality needs to control each stage of structural arrangement of parts. Therefore, right from the step of arranging the floor steel structure, it is necessary to control the quality to make appropriate adjustments if the set standards are not met.
At this step of control, it is necessary to have specific and measurable criteria for the most accurate control and verification results, as a basis for making the most scientific adjustment decisions.
It is necessary to clearly determine the internal force of the floor to arrange a standard 2-layer floor steel structure. And for the most accurate internal strength indicators of the floor, investors can refer to the application of new software to analyze internal forces, avoiding affecting the whole construction process.
There are two ways to arrange steel floor as follows:
Layout of steel floor in one direction: This is the method of floor bending in a specific direction or in some special cases, it can be taken in two directions, but the bending of one direction will be very small compared to the other. In this layout, it is possible to put the wall or pour the block together with the beams. And in this way, the connections with beams are less than or equal to 2 opposite sides.
Arrangement of 2-way floor steel structure: In this way, it will be bent in 2 directions with almost the same large bending. This is how connections to beams will be greater than or equal to two adjacent edges.
