I. Overview of Steel Reinforced Truss Deck
Reinforced truss deck is a composite formwork that involves processing the steel rebars into a steel truss in the factory and then welding the steel truss with galvanized corrugated steel plate base mold into a single integrated formwork. During the construction phase, the steel rebars...
Girder deck panels can bear construction loads, laid directly onto beams, and simple steel reinforcement work allows for concrete pouring. As they completely replace the formwork function, they reduce the need for formwork setup and teardown.
The process significantly enhanced the efficiency of floor construction.A roof-decking product that enhances customer value,We have eliminated factors leading to increased material costs.,Change the usage of the profiled steel plate, only as a floor deck
Templates during the construction phase, reducing the consumption of corrugated steel sheets, and lowering the requirement for the stable coating performance of the corrugated steel sheets. We have altered the load-bearing mode of the roof deck during construction.,During the construction phase by corrugated
Steel plate stiffness is now provided by reinforced trusses, offering enhanced floor deck stiffness to accommodate larger unsupported floor spans. We have reduced the costs for our customers' future maintenance.,Pressure
Steel sheet, only used as a formwork during the construction phase, does not require processing for performance stability and is not subject to the requirements of building service life, thereby eliminating the need to consider maintenance costs later on.
Section 2: Advantages of Steel Reinforced Truss Decking
(1)Economic
The steel truss has a rational load-bearing pattern, uses economical materials, and boasts a significant cost advantage in its comprehensive construction.
Adjustable truss height and rebar diameter for compatibility.etFor wide-span floor joists
Can be designed as a double-sided board
(2)Convenient
Field reinforcement binding workload can be reduced60%-70%Further shortening of the construction period is achievable.
The truss loading pattern offers enhanced 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 slabs, with excellent crack resistance for the floor.
Fire resistance is comparable to traditional cast-in-place slabs and superior to composite steel deck slabs.
The mold base is not involved in the usage stage and does not require consideration of fire resistance and corrosion prevention issues.
(4)Reliable
Rebar is evenly arranged, with reliable guarantees for the spacing between the upper and lower layers of rebar and the thickness of the protective layer.
Double discount edge overlap design, effectively ensuring the construction quality of composite flooring.
Steel reinforcement truss deckSimilar bidirectional stiffness benefits seismic resistance in buildings.
Screw pin welding quality is easier to ensure.
Roof Decking Product Development History
Best-selling Item: Non-composite corrugated steel sheet Plain Open Sheet | Superior Substitute: Composite corrugated steel plate Open-end plates, Closed-end plates | Third Generation: Reinforced truss floor deck | Fourth Generation: TDD assembled removable steel truss floor deck |
Section 3:TDV、TDMIntroduction to Type Steel Truss Floor Deck
TDV、TDMA type steel truss deck is a composite formwork that involves fabricating the steel reinforcement into a truss in a factory, and then welding the steel truss to the zinc-coated steel plate bottom mold to form an integrated formwork assembly. During the construction phase, steel truss floor slabs can bear construction loads directly laid on beams, and simple reinforcement work allows for concrete pouring. As they fully replace the formwork function, they reduce board... Erecting and dismantling projects, with superior quality, have greatly enhanced the efficiency of floor construction.
IV. Product Composition
TDV、TDMSteel joist deck for slab, composed of top chord steel bars, bottom chord steel bars, web steel bars, bottom form, and support steel bars.
V. Material Parameters
Upper and lower strand rebars: Hot-rolled spiral rebars with good reputationHRB400Grades, or cold-rolled ribbed rebarsCRB550Grade
Cold-rolled smooth rebar for the web.
TDV、TDMType mold steel plate: Zinc-coated steel plate commonly used thickness0.4～0.5mmDouble-sided galvanized coating amount120g/m2。
Section 6: Product Dimension Parameters:
| Name | Specification |
| Rebar diameter (top and bottom chords) | 6-14mm |
| Hollow section steel bar diameter | 4-7mm |
| Reinforcement truss height ht | 70-270mm |
| Anchor slab horizontal reinforcement 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 |
| Bottom mold steel plate 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 Deck:
Excellent weld joint bearing capacity
"M"Type upright rib width reaches2-3mm, Welded joint bearing capacity of steel rebar truss web members is approximately equal to"V"Lipped plate weld joint load-bearing capacity1.5 Multiple.
Good performance with stable results
The distance from the steel truss to the welding point of the bottom form is approximately5mmThe bottom mold surface is free of weld points, preventing rust spots, and exhibits superior corrosion resistance.TDV Type steel truss floor deck, eliminating the possibility of future maintenance.
Prevent leakage of paste
Since there are no weld points on the mold base, there are no holes that can be pierced by welding, and no leakage of the welding material will occur at the weld points.
TDMApplication Industries for Steel Beam Truss Panels
Suitable for high-purity factory buildings without suspended ceilings, for spaces with stringent requirements for indoor air quality such as laboratories, machine rooms, and information centers, and for environments with specific humidity and salinity levels. High coastal city usage; exposed public buildings without ceilings; high-rise office buildings of superior quality sold directly before ceiling decoration.
TDVTensioned steel truss deck applications
For multi-story steel structural factories and public buildings with or without suspended ceilings, where the ceiling bottom effect is not highly required.
EightApplication Solutions:
High-rise, high-rise structure
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 decks offer both construction molds and bearing capacities. Reinforcement bar"Dual role"High-rise and skyscraper construction can fully leverage its advantages. Reinforced truss deck systems are used in high-rise buildings, forming multiple relatively independent, safe work surfaces. Enhanced construction progress.
Bi-directional panel structure
In comparison to profiled steel plates, designing and constructing with bidirectional slabs is highly beneficial for reinforced truss floor decks. Without increasing the floor thickness, reinforced truss floor decks can be installed on-site Tie reinforcing in both directions easily meets the design requirements for two-way slabs.
Large-span Structure (with supporting scheme)
In large plate cross-application, to save costs, steel truss floor decks can use smaller-sized steel bars. During construction, a simple temporary setup is placed in the middle of the floor span prior to casting concrete. Supports are provided to meet construction requirements while also ensuring the floor's strength meets usage stage specifications.
Large-span Structure (No-Support Solution)
Steel truss deck for reinforced concrete slabs, thanks to its technically rational mechanical design, can achieve appropriate adjustment of steel grades.5mDesign requirements for unsupported large plank girder spanning. In practical application, it can accelerate the construction. Efficient work progress, cost savings in construction.
Thick plate design
For300mmAbove-thickness floor slabs can be designed using reinforced truss floor decks to reduce or eliminate temporary supports, thereby accelerating construction progress.
The application of steel truss floor slabs in multi-story reinforced concrete structures can reduce the labor for formwork installation and removal on-site, decrease on-site manpower, and significantly accelerate the project进度.
Reinforced concrete or steel structure residential projects
This type of structure generally requires high finish quality on the floor slab bottom, necessitating a plastering project, utilizing multi-dimensionalTDDAssembled removable steel truss floor deck can effectively address This challenge meets the requirements for construction speed in steel structure projects and, after the floor construction is completed, allows for the removal of the bottom formwork to achieve satisfactory finishing effects.
Circular, Elliptical, Other Shapes
These types of structural floor slabs are typically designed as two-way slabs, which not only bear vertical loads but also horizontal tensile forces; in addition, due to the irregular shape of the structure, the support issues for floor construction often arise. These issues can be effectively addressed by using steel truss deck plates.
Gable roof structure
For sloping roofs, reinforced truss deck sheets can be used for roof panel installation. The deck sheets can be laid in the slope or parallel, both are feasible. The roof must be properly treated for performance stability.
