Floor steel decking (closed type)

Closed-type floor steel slabs have a smooth bottom, making them suitable for various ceiling treatments, balancing aesthetics and practicality.

The structure of this slab type has high load-bearing capacity and can completely replace reinforcing steel in tension, achieving a fire resistance of 2 hours without the need for additional fireproof coating. At the same time, it effectively reduces the thickness of the floor slab and increases the clear height.

Equipped with a unique slot suspension system, it provides hanging points without the need for drilling, greatly facilitating electromechanical installation. Its overall performance is excellent, making it an ideal choice for modern flooring systems.

The closed-type floor steel formwork is a high-performance composite floor system that features excellent structural rationality and construction convenience, making it widely applicable to various modern buildings. Its main characteristics include:

The bottom of the board is flat, and the ceiling treatment is flexible.The belly plate of this board type fits closely, and the bottom of the board has a high level of flatness, making it convenient for various decorative treatments. It meets the diverse aesthetic and practical needs of different functional rooms for the ceiling.

High structural load-bearing capacity, superior safety performance.The closed-section composite slab has a lower centroid (about 16mm from the bottom of the slab), which allows for a larger moment arm when the composite slab is subjected to stress. This enables the strength of the concrete and steel to be utilized more effectively, resulting in greater structural load-bearing capacity and a higher safety factor.

Excellent fire resistance, no additional fireproof coating required.Closed-floor slab profiles can completely replace the tensile reinforcement in the positive moment region of the floor slab. Without the need for fireproof coating, they can meet the 2-hour fire resistance requirement, balancing safety and cost savings.

The combination effect is reliable, and the grip strength is stronger.The unique ribbed corner design enhances the bond between the concrete and the floor slab, ensuring that both work together to achieve true composite structural force.

Reduce the floor thickness and increase the clear height.Compared to the minimum plate thickness of 126mm required for open-web floor types, the use of closed-web floor slabs can achieve a minimum floor thickness of 104mm, effectively increasing the net height of the building interior and improving space utilization efficiency.

Slot suspension system, easy and flexible to install:The bottom board is equipped with a dedicated card slot, eliminating the need for drilling or embedded components. By inserting the card, it can provide a hanging force of up to 200kg at a single point, greatly facilitating the installation and disassembly of electromechanical pipelines, meeting the needs for future adjustments and modifications.