I. Overview of Steel Truss Floor Deck
Reinforced truss deck is a composite formwork that involves manufacturing the reinforcing steel into a truss in a factory and then welding the steel truss with a galvanized corrugated steel bottom mold into a single integrated formwork. During the construction phase, the reinforcing steel...
Truss deck floor panels can bear construction loads, directly laid on beams, and simple rebar work allows for concrete pouring. As they completely replace the formwork function, they reduce the need for formwork installation and dismantling labor.
The process significantly enhanced the efficiency of floor construction.A roof-decking product that enhances customer value,We have eliminated factors that contribute to increased material costs.,Modify the usage of the pressed steel plate to only be used as a floor deck
Templates during the construction phase, reducing the usage of corrugated steel sheets, and lowering the requirements for the stable coating performance of the corrugated steel sheets. We have altered the load-bearing mode of the deck sheet during construction.,During the construction phase by formed
Steel plate stiffness is now provided by reinforced trusses, offering greater floor deck stiffness to accommodate larger unsupported floor spans. We have reduced the cost of customer maintenance in the later stage.,Pressure
Steel plate is solely used as a template during the construction phase; no treatment is required for stability, and it does not need to meet the service life requirements of architectural use, thus no consideration is needed for future maintenance costs.
Section 2: Advantages of Steel Reinforced Truss Floor Deck
(1)Economic
The steel truss has a rational load-bearing pattern, economical material selection, and a significant cost advantage in total construction.
Adjustable truss height and steel bar diameter for suitabilityetFor wide spans of floor joists
Can be designed as a two-way board
(2)Convenience
On-site rebar tying work volume can be reduced60%-70%Further shortening of the construction period is achievable.
The truss loading pattern offers increased floor deck stiffness, significantly reducing or eliminating the need for temporary supports.
(3)Safety
Mechanical properties are similar to those of traditional cast-in-place floor slabs, with excellent crack resistance.
Fire resistance equivalent to traditional cast-in-place floor slabs, superior to composite steel deck floor slabs
The bottom mold does not participate in the application stage of force and does not require consideration of fire resistance and corrosion resistance issues.
(4)Reliable
Rebar is evenly arranged, with reliable spacing between the top and bottom layers of rebar, as well as guaranteed thickness for the protective layer.
Double discount edge lap design, effectively ensuring the construction quality of composite flooring.
Steel reinforced truss deckSimilar bidirectional stiffness benefits building seismic resistance.
The quality of bolt welding is easier to ensure.


Roof Decking Product Development History
Best-selling items: Non-combined profiled steel plate Standard Open End Plate | Superior Substitute: Composite corrugated steel sheet Open-end plate, closed-end plate, and shrink-end plate | Third Generation: Reinforced steel truss floor deck | Fourth Generation: TDD Assembled Demountable Reinforced Steel Truss Floor Deck |
III.TDV、TDMIntroduction to Type Steel Truss Floor Deck
TDV、TDMA type steel truss floor deck is a composite formwork that involves processing the steel rebars in a factory into steel truss structures, then welding these truss structures to galvanized corrugated steel sheets to form a single integrated form. During the construction phase, the reinforced truss floor deck can bear construction loads and be directly laid on beams, with only simple reinforcement work required to pour concrete. As it fully replaces the formwork function, it reduces the board... Erecting and dismantling projects, with superior quality, have significantly enhanced the efficiency of floor construction.
Section 4: Product Composition
TDV、TDMType steel truss floor deck is composed of top chord steel, bottom chord steel, web steel, bottom form, and support steel.
V. Material Parameters
Top and bottom string reinforcement bars: Adopted hot-rolled coil reinforcement bars with good reputationHRB400Grade or Cold-Rolled Reinforcing BarCRB550Grade
Cold-rolled smooth rebar for the web.
TDV、TDMType mold steel plate: commonly used galvanized steel plate thickness0.4~0.5mmDouble-sided galvanized coating amount120g/m2。
Section 6: Product Dimensional Parameters:
| Name | Specification |
| Rebar diameter | 6-14mm |
| Hollow section steel bar diameter | 4-7mm |
| Reinforced steel truss height: ht | 70-270mm |
| Supporting seat horizontal rebar diameter | 10mm(h≤100mm),12(h>100mm) |
| Vertical steel bar diameter of the support bracket | 12mm(h≤100mm),14(h>100mm) |
| Base mold steel plate thickness | 0.4-0.6mm |
| Base mold steel width | 590mm |
| Concrete protective layer thickness | 15mm,20mm,25mm,30mm |
| Reinforced steel truss floor deck length | 1.0-12m |
Section 7:TDMAdvantages of Type Steel Beam Truss Plate:
Good weld joint bearing capacity
"M"Type straight rib width reaches2-3mmThe weld point bearing capacity of the steel rebars in the web of steel truss is approximately equal to that of ordinary"V"Lipped plate weld joint load-bearing capacity1.5 Not provided.
Excellent performance with stable results
The distance from the steel truss to the welding point of the bottom form is approximately5mmThe mold base surface is free of weld points, preventing rust spots and exhibiting superior corrosion resistance.TDV Type steel truss floor deck, eliminates the possibility of maintenance later on.
Avoid leakage
Due to the absence of weld points on the mold base, there are no holes that can be pierced, thus preventing leakage from the weld points.
TDMGrade steel truss deck application industries;
Suitable for high-purity factory buildings without suspended ceilings, for laboratories, server rooms, information centers with stringent requirements for indoor air quality, and for environments with specific humidity and salinity levels. Highly utilized in seaside cities; buildings without suspended ceilings, exposed public structures; high-rise office buildings of superior quality sold directly before ceiling decoration.
TDVSteel I-Beam Truss Plate Applications
For multi-story steel structural factories and public buildings with or without suspended ceilings, where the ceiling effect is not highly required.
EightApplication Solutions:
High-rise, high-rise structures
High-rise buildings and structures not only demand strict quality for their construction but also have special requirements for project timelines and on-site safety. Reinforced truss floor deck panels simultaneously serve as construction molds and load-bearing components. Reinforcement bar"Dual Role"High-rise and superstructure construction can fully leverage its advantages. Reinforced truss floor slabs are used in high-rise buildings, forming multiple relatively independent and safe work surfaces. Enhanced construction progress.
Bi-directional board structure
Compared to corrugated steel sheets, designing and constructing bidirectional panels is highly advantageous for reinforced steel truss floor slabs. Without increasing the floor thickness, reinforced steel truss floor slabs can be installed on-site Reinforcing in both directions makes it easy to meet the design requirements for two-way slabs.
Large-span structure (with support solutions)
In large-span applications, to save costs, small-sized steel bars can be used for the steel truss floor deck. During construction, a simple temporary support should be set at the mid-span of the floor before the concrete pouring. Supports, which meet construction requirements, also protect the floor's strength to meet usage stage requirements.
Large-span Structure (Without Support Scheme)
Reinforced truss deck for steel girders, thanks to its technically sound mechanical design, can achieve by appropriately adjusting the steel bar type.5mUnsupported large plate span design requirements. In practical application, it can accelerate the implementation of... Streamline production processes, save on construction costs.
Thick plate design
For300mmAbove-grade slabs can be designed using reinforced truss floor decks to reduce or eliminate temporary supports, thereby speeding up construction.
The application of steel truss floor slabs in multi-story reinforced concrete structures can reduce the amount of on-site formwork work and labor, thereby expediting the construction progress.
Reinforced concrete or steel frame residential projects
This type of structure typically requires a high standard of finish for the floor slab, necessitating a plastering project, employing multi-dimensionalTDDAssembled prefabricated steel truss floor deck can effectively address This challenge meets the demand for construction speed in steel structure projects and, after the floor construction is completed, can be dismantled to achieve satisfactory finishing effects.
Circular, elliptical, other irregular shapes
These types of structural floor slabs are typically designed as bidirectional panels, which not only bear vertical loads but also horizontal tensile forces; in addition, due to the irregular shape of the structure, the support issues during the floor construction are often... Challenges in construction are often difficult to address, but the use of reinforced steel truss deck slabs can effectively resolve these issues.
Gabled roof structure
For sloping roofs, reinforced truss deck plates can be used for roof panel installation. The deck plates can be laid either along the slope or parallel, both options are feasible. The roof must undergo stable performance treatment.





























