The advantages of floor deck slabs

I. Advantages in construction efficiency

Quick installation

Lightweight design: Light in weight (about 1/3 of traditional concrete formwork), it is convenient for transportation and on-site handling, significantly reducing the labor intensity.

No formwork removal process: Used as a permanent formwork, it eliminates the step of removing wooden formwork, reduces the cost of construction waste disposal, and shortens the construction period by more than 30%.

Multi-level synchronous operation: Supports simultaneous construction with steel structures, achieving continuous operation of floor slab laying and concrete pouring, and accelerating the progress of high-rise buildings.

Simplify the process

Closed-joint slab without plug: Due to the closed web of the closed-joint floor deck, there is no need to plug the end slab during pouring, thus avoiding the problem of slurry leakage. The open plate facilitates the pre-burial of pipelines and reduces the need for later openings.

Automated connection: Rapid fixation is achieved through interlocking pressure holes or stud welding, reducing on-site welding volume.

Ii. Structural Performance advantages

High-strength load-bearing capacity

Composite force-bearing mechanism: Working in coordination with concrete, the floor deck serves as tensile reinforcement to enhance the rigidity of the floor slab, increasing the load-bearing capacity by more than 40%. It is suitable for large-span Spaces (such as stadiums and airports).

Anti-deformation capacity: The closed cross-section design of the closed deck slab disperses the load, reduces stress concentration, and its stability is superior to that of the open slab.

Seismic resistance and durability

Seismic performance: The flexible combination of steel and concrete effectively absorbs seismic energy and reduces the risk of structural damage.

Corrosion-resistant and moisture-proof: Galvanized coating (≥180g/m²) or coating treatment can resist corrosion in humid environments and extend service life.

Iii. Economic Cost Advantage

Material conservation

Replacement of reinforcing bars: It can completely replace the load-bearing reinforcing bars in the lower layer, reducing the usage of reinforcing bars by 20% to 30%.

Concrete reduction: Due to the center of gravity of the closed floor deck being close to the bottom of the slab, the thickness of the floor slab can be reduced (≥110mm is sufficient to meet the load), saving 10% to 15% of concrete.

Comprehensive cost optimization

Fireproof coating savings: The fire resistance limit of the closed floor deck can reach 1.5 hours (when the total thickness of the floor slab is ≥110mm), and there is no need to spray additional fireproof coating.

Pipeline layout efficiency: The hollow structure facilitates the laying of cables and ventilation ducts, reducing the cost of mechanical and electrical installation by 30%.

Iv. Safety and Environmental Protection Advantages

Fire safety

Class A fire resistance: Concrete-wrapped closed ribbed ribs, with the rib temperature less than 300℃ during a fire, maintaining structural strength. The overall fire resistance rating reaches Grade A.

Flame retardancy: Compared with wooden formwork, it significantly reduces the risk of fire at the construction site.

Environmentally friendly and sustainable

Resource conservation: Reduce wood consumption and avoid the destruction of forest resources; Steel can be 100% recycled.

Low noise during construction: Factory prefabricated production reduces on-site cutting noise, meeting green building standards.

V. Advantages in Functional Expansion

Spatial adaptability

Flexible customization: Supports arc and irregular cutting (plasma cutting), suitable for complex architectural shapes (such as theater and shopping mall domes).

Ceiling integration: The bottom of the board is flat and can be directly used as a ceiling, or the ceiling can be installed through the hooks in the groove, simplifying the decoration process.

Environmental regulation

Sound insulation and heat insulation: The sealed structure of the closed floor deck blocks the transmission of noise (noise reduction ≥25dB), and the energy-saving effect can be enhanced after filling with insulation materials.

Ventilation optimization: Open floor deck promotes air circulation and improves the indoor environment.