Name: TD76-344-688 /Floor Deck /Profiled Sheet /Metal Decking
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TD76-344-688 /Floor Deck /Profiled Sheet /Metal Decking

☑ Metal Decking

Floor deck is the rolled and cold-formed galvanized/color coating steel sheet, mainly used as permanent form, which can enhance rigidity of floor slabs, save the quantity of reinforcement and concrete required. With high strength bearing capacity, the floor deck panel can meet fast construction requirements of main steel structures.

Product Details

TD76-344-688

Floor Deck /Profiled Sheet /Metal Decking

Spread Width：1000mm

Technical Data

Steel plate thickness(mm):	0.80	1.00	1.20	1.50
Unit weight (kg/m²):	9.13	11.41	13.69	17.11
Moment of inertia(cm⁴/m):	117.63	147.05	176.49	224.45
Section modulus for positive bending moment (cm³/m):	29.53	36.84	44.12	56.13
Section modulus for negative bending moment(cm³/m):	31.82	69.65	47.44	56.87

Floor thickness (mm)	Steel plate thickness (mm)	Allowable span during the construction stage(mm) （Yield strength fy≥235Mpa）
Floor thickness (mm)	Steel plate thickness (mm)	Single-span	Double-span	Three-span
125	0.80	2600	2700	2800
	1.00	3100	3150	3250
	1.20	3500	3600	3750
	1.50	3690	4320	4640
140	0.80	2500	2650	2750
	1.00	3000	3050	3150
	1.20	3400	3500	3600
	1.50	3550	4180	4410
155	0.80	2400	2550	2650
	1.00	2900	2950	3050
	1.20	3300	3400	3500
	1.50	3440	4020	4260

Strong Friction And Shear Performance

The closed-type floor decking sheet uses special closed rib design and its vertical shear performance is good. Under the limitation allowance of the truss floor deck's design loads, steel deck and concrete don't slip off each other.

Perfect Fire-Resistant Performance

Rib is completely encased in concrete, similar to reinforcing steel bars in the concrete slab which is site pouring. The closed-type composite slab can completely substitute the sagging moment reinforcing steel bars for pulling in the floor and can be up to 1.5 hours of fire resistance without any fire-retardant coating.

Fire resistance time vs coverage depth of profile steel floor deck when it is not protected by the fireproof material under it:

	Trapezoidal Profiled			Re-entrant Profiled
Fire rating(minutes):	60	90	120	60	90	120
Min.total slab thickness(mm):	70	80	90	90	110	125

Section Properties

Base Metal Thickness(mm)	Self Weight (kg/m²)	Full Cross-Sectional (mm²/m)	Zinc Coating (g/m²)^②	Steel Grade (MPa)^③
0.70	7.35	888.9	275	550
0.75^①	7.84	962.5	275	550
0.90	9.34	1142.7	275	550
1.00	10.34	1269.7	275	550
1.20^①	12.33	1523.9	275	550

① Non-standard, longer lead time

② Nominal coating thickness

③ Minimum yield strength of steel

Smart Application

Besides its application in composite floors in multi-storey buildings and commercial establishments, it is extensively used for Mezzanine applications. Corrosion resistant coating makes it the best solution for typical applications like parking sheds, where our structural decking system provides better appearance to exposed ceilings.

Material Specifi cations

Our deck panel is manufactured from hot dipped zinc coated high strength steel with minimum 550 MPa yield strength and coating mass of Z275(min 275g/m2 total of zinc coating on both sides).The available thickness ranges from 0.70 mm to 1.2mm BMT(Base Metal Thickness). The steel conforms to AS1397 and BS EN 10147:2000.

Tested to Extreme Conditions

Deck panels have been subjected to rigorous tests such as slip block test, formwork tests including shear and bearing, full scale slab test, composite slab cycle test, fire rating test, formwork-air pressure test, formwork-four point load test and concentrated load test. These tests are carried out in the labs to ensure maximum performance and quality of our decking profiles. (Ref. figure 2.1 to 2.4)

Quality Assurance

Our steel sheets comply with major China standards and design standards adopted across Asia. Manufactured using high tensile steel, it is optimally configured and uses advanced design and construction method.

Span Table Formwork Stage

Span Type		Single ▲ ▲			Continuous End ▲ ▲ ▲			Continuous Interior ▲ ▲ ▲
	BMT	0.7	1	1.2	0.7	1	1.2	0.7	1	1.2
Slab Thickness (mm)	100	2360	2600	2600	2610	3200	3200	2610	3200	3200
	110	2280	2620	2800	2520	3290	3580	2520	3130	3340
	120	2200	2540	2710	2430	3200	3490	2430	3030	3240
	130	2140	2460	2630	2360	3110	3400	2360	2950	3150
	140	2080	2400	2560	2290	3040	3320	2290	2840	3070
	150	2030	2340	2500	2230	2950	3240	2230	2740	2990
	160	1980	2290	2450	2180	2870	3170	2160	2650	2930
	170	1930	2240	2390	2120	2800	3100	2090	2570	2840
	180	1890	2190	2350	2080	2740	3040	2030	2490	2750
	200	1810	2110	2260	1990	2620	2900	1920	2360	2610
	220	1740	2040	2190	1910	2510	2790	1820	2240	2480

Usage method

The floor deck is laid and connected with the steel beam, and the end of the plate is welded with the steel beam through spot welding, and the middle is welded with the steel beam through fusion welding: When the beam distance is greater than 1.5m, the side joint of the steel bearing plate and the steel plate shall be fixed at the distance of 90 cm across (the minimum value), which is welded or self-tapping screws.
In the cutting work of steel bearing plates at construction sites, all bevel edges, cutting angles, extra-long holes, etc., should use electric ion cutters to avoid damaging the surface coating treatment of steel plates. If oxygen acetylene is used for cutting, zinc powder anti-rust paint should be applied to the cutting edge to avoid corrosion.
Fire blanket should be prepared at the cutting site to avoid sparks and slag caused by fire, and fire extinguishers should be provided at the scene for emergency needs.