Open galvanized floor deck

1. Floor decks are used in multi-story residential areas
　　 floor deck is the fastest growing field in the past ten years. The use of light floor decks in foreign countries accounts for more than 50% of non-residential construction investment. This structure has a high degree of industrialization and commercialization, fast construction, high comprehensive benefits, and great market demand, which has attracted the recognition of structural designers. The research and development of light steel housing has been piloted in various places, and it is an important direction for light steel development. There are already a variety of low-rise, multi-story and high-rise design schemes and examples. Because of its large span, large space, flexible use of separation, fast construction speed, and favorable seismic resistance, it will inevitably have a greater impact on my country's traditional residential structure mode.

As a rising star in the construction industry, 　　 floor decks gradually showed their advantages after the reform and opening up. According to statistics, the output value of the domestic construction industry has increased by more than 20 times in the past few decades, becoming an important force driving the rapid growth of the national economy. However, the traditional Chinese construction industry has been criticized for a long time due to its inherent shortcomings—noise and pollution problems, which has broken the dominance of civil engineering, with less environmental damage and pollution, and high material recycling and recycling rates. , In line with the requirements of sustainable development and many other advantages in one floor deck building emerged as the times require, and is gradually accepted by people.

2. How to select the type of floor deck
floor deck is formed by roll-rolling and cold bending of galvanized steel sheet. Its cross-section is V-shaped, U-shaped, trapezoidal or similar. It is mainly used as a permanent template, but can also be selected for other purposes. So do you know how to select the floor deck?
How to choose the type of floor deck?

In addition, regardless of the type of floor deck, the higher the utilization rate, the cheaper the cost. Utilization rate=effective width/raw material feeding width,< span style="font-size: 14px;">The board types of floor decks are as follows, but there are several special board types: YX75-230-690, YX51-305-915, YXB65-185-555, YXB65 -220-660, the raw material feed width of these types of plates is not the commonly used width of 1000mm or 1219mm or 1250mm in the market. It can be processed only after slitting.

floor deck profile thickness 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, width 510mm~1025mm, height 51mm~76mm, engineering floor deck and steel reinforcement The concrete structure works together to form a composite structure. The floor deck is laid and connected with the steel beam, the end of the slab is penetrated and spot welded with the steel beam, and the stud and the steel beam are penetrated and welded in the middle; the floor deck is connected with the pressure hole with special clamping pliers; the plug is dedicated Spot welding of galvanized plug plate and floor deck and steel beam. If it is a special-shaped cutting of the floor deck with a curved area, the plasma cutting machine is used to cut the cut, the cut is smooth, and the surface galvanized layer is complete. The floor deck is welded by manual arc spot welding, the electrode is E4303, the diameter is 3.2mm, and the penetration welding point is 16mm. The original design welding spot spacing is 305mm, and the welding point will be doubled to ensure that the floor deck is not when the operator walks. Deformation, the end of the floor bearing slab does not leak when the concrete is poured. When the elevation of the floor structure changes inconsistently, the measures of adding welded steel shall be adopted to make the horizontal structure a step transition. When the elevation is lowered, welded angle steel is added to the web of the I-beam; when the elevation is raised, welded channel steel is added to the flange of the I-beam. When there is a reserved opening on the floor, the size is generally greater than 500mm× when 500mm, the first opening measure is adopted, that is, the welded steel joist is added to the steel beam to increase the rigidity of the opening, and the mesh reinforcement is disconnected at the opening and is connected with Welding of section steel; when the size of the opening is less than 500mm×500mm, the measures of opening the hole shall be adopted, that is, adding a plug dividing plate on the floor bearing slab, the mesh steel bar is penetrated, and the steel bar can be cut after the concrete is poured.

3. Model introduction of open floor decks