The Metal Floor deck Roll Forming machine is the machine that produces the metal floor deck, and the Close Type Floor Deck Making Machine is the machine that produces the close type floor deck.
But why do metal floor decks have these two models? Let IronStar tell you about it.
First of all, what is a metal floor deck?
A metal floor deck is a press-formed steel plate that supports the floor concrete, called composite.
Floor slab deck, also known as floor deck, steel deck. Floor deck products are widely used in power plants, power equipment companies, automobile exhibition halls, steel structure workshops, cement warehouses, steel structure offices, airport terminals, railway stations, stadiums, concert halls, theaters, supermarkets, logistics centers, Steel structure buildings such as Olympic venues and stadiums. To meet the requirements of rapid construction of the main steel structure, it can provide a firm working platform quickly and use multiple floors to lay profiled steel plates and layer-by-layer pouring concrete slabs for flow construction.
Metal Floor Deck
So what is a closed floor deck?
The closed floor deck is a more advanced composite floor deck system, which experiments have proved to have a stronger bearing capacity and shear resistance than other open floor deck systems. The special design of closed rib allows the rib of the steel deck to be completely covered by concrete, just like the steel bars in the cast-in-situ slab, so that the respective characteristics of steel and concrete can be maximized and successfully applied to the building under stress reinforcement. In the support plate system, and has excellent fire resistance.
Close Type Metal Floor Deck
The characteristics of the closed floor deck are as follows:
1. The construction is simple and fast, and the construction period is shortened;
2. It replaces the traditional formwork and improves the shortcomings of the traditional formwork. After the concrete is hardened, it will play the role of tensile steel, resulting in a combined effect;
3. It can be used as a part of structural strength to reduce material cost;
4. It is easy to construct reinforcement, wiring, and piping;
5. The appearance is neat and beautiful;
6. Lightweight, high strength, heavy bearing capacity, and good earthquake resistance;
It can be seen that the close floor deck is an emerging version developed based on the metal floor deck. Then he must have a greater advantage. Ironstar will help you analyze the design principle and installation characteristics.
Compared with the open floor deck, the closed floor deck has the following advantages:
1. Functions and needs Provide a variety of sub-panel ceiling treatments.
2. The center of gravity of the section of the closed floor deck is about 16mm away from the bottom of the slab, which is smaller than the section parameters of the open or constricted floor deck. According to the plastic theory, when analyzing the composite floor structure’s bearing capacity, the center of the resultant concrete pressure and the center of the resultant tensile force has a larger internal force arm. , which means that the material strength is more fully exerted, so the closed composite floor has a larger structural bearing capacity or a higher safety factor;
3. The closed floor deck can completely replace the positive moment tension-steel bar in the floor slab and can achieve 2 hours of fire-resistance aging without spraying fire-resistant paint;
4. The rib angle of the closed floor deck makes the concrete have a stronger grip on the deck, and the combined floor achieves a real combined effect;
5. The closed floor deck combined floor can reduce the thickness of the floor and increase the headroom. In an open floor deck, the minimum plate thickness needs to be 126mm, and the minimum plate type is only 104mm;
6. The unique card slot suspension system of the closed floor deck can provide convenience for the installation of electromechanical pipes at the bottom of the building slab. This system does not need to drill holes or pre-embed iron parts at the bottom of the slab and only needs to easily insert two cards into the groove at the bottom of the slab. It can provide a 200kg hoisting point, and it is very convenient to disassemble;
Compared with the open floor deck, the technical installation advantages of the closed floor deck are as follows:
1. The closed floor deck is processed in the factory in strict accordance with the design plan, and the sequence of the plank has been numbered. There is no need to cut and patch the plate during on-site construction, which is convenient for the steel structure company to install on-site;
2. When the closed floor deck is arranged, it only needs to be arranged according to the span. When it is connected with the steel beam, because the bottom of the plate is flat, there is enough area to connect with the steel beam. Therefore, it can be directly laid without treatment (the open plate needs to be cut and patched to avoid virtual overlap with the steel beam);
3. The open floor deck should be blocked at the port to prevent the pouring concrete from leaking from the opening at the bottom of the slab, while the closed floor deck does not need to be blocked at the end because the web is closed;
4. Because the bottom of the closed floor deck is flat, it can be fully combined with the upper wing plate of the steel beam, whether it is horizontally or smoothly overlapped with the steel beam, so the top surface of the upper wing plate of the steel beam does not need to be sprayed with fireproof paint. However, there is a cavity between the open-shaped steel bearing plate and the steel beam, which needs to be filled with shoulder plugs;
5. The closed floor deck completely replaces the lower steel bars, reduces the number of steel bars made on-site, reduces the labor on-site, and speeds up the construction. At the same time, the original design of the lower steel reinforcement is canceled, which can provide more space for laying wire casings on the floor;
Comprehensive cost comparison analysis:
Compared with the open floor deck, the closed floor deck can eliminate the fire retardant coating at the bottom of the slab, completely replace the lower steel bars, and reduce the thickness of the floor slab, saving the amount of concrete. The unique suspension system of the closed deck can also save money—electromechanical plumbing installation costs. In addition, due to the above advantages, the processing speed can be significantly accelerated, and the construction period can be shortened. Therefore, the use of a closed floor deck can reduce the direct cost of the project on the one hand and reduce the project management cost on the other hand. The fire-resistance rating of the closed floor deck is generally not less than 2 hours.
So what are the advantages of a metal floor deck compared to a closed floor deck? Aha, the machine is relatively cheap.
Thank you for reading the article about the metal floor deck roll forming machine. Welcome to click on the relevant product information of the ironstar floor deck roll forming machine, next time, we will introduce the main types of floor deck roll forming machines.
Post time: Apr-06-2022
