I. Overview of Steel Reinforced Truss Deck
Reinforced truss deck for floor slabs involves processing the steel reinforcement into a truss structure in the factory and then welding it into a single integrated form with galvanized steel press-formed sheeting as the bottom mold. During the construction phase, the steel reinforcement is...
Joist deck girders can bear construction loads, laid directly onto beams, and simple steelwork can be used to pour concrete. As they completely replace the function of formwork, they reduce the labor and time required for formwork setup and dismantling.
The process significantly enhances the efficiency of floor construction.A value-boosting roof-decking product,We have eliminated factors causing an increase in material costs.,Change the usage of the corrugated steel sheet to only be used as a floor deck
Templates at the construction stage; reduce the usage of corrugated steel sheets and lower the requirements for the stable coating performance of the corrugated steel sheets. We have altered the load-bearing mode of the deck plates during construction.,During the construction phase, by press-forming
Steel plates are replaced with reinforced truss to provide enhanced rigidity, allowing for greater floor deck stiffness to accommodate larger unsupported floor spans. We have reduced the maintenance costs for customers in the later stage.,Pressure
Sheet steel is only used as a formwork during the construction phase, and no treatment is required for its stability. It does not need to meet the requirements of the building's service life, thus there is no need to consider maintenance costs later on.
Section 2: Advantages of Steel Reinforced Truss Floor Plates
(1)Economic
Reinforced 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 suitabilityetFlooring for wide spans
Can be designed as a two-way board
(2)Convenient
On-site reinforcing bar binding workload can be reduced60%-70%Further shortening of the construction period is achievable.
The truss loading pattern can offer greater 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 in the slabs.
Fire resistance is comparable to traditional cast-in-place slabs and superior to composite steel deck slabs.
The bottom mold does not participate in the stress stage of use, so there is no need to consider fire resistance and corrosion prevention issues.
(4)Reliable
Reinforcement bars are evenly arranged, with reliable guarantees for the spacing between layers and the thickness of the protective layer for the reinforcement.
Double discount edge overlap design, effectively ensuring the construction quality of composite flooring.
Steel reinforcing truss deckEqual bidirectional stiffness, beneficial for seismic resistance of buildings.
Screw钉welding quality is easier to ensure.
History of Floor Decking Product Development
Best-selling Item: Non-combined profiled steel plate Plain Open Sheet | Superior Substitute: Composite corrugated steel sheet Open-end plate, close-end plate, and shrink-end plate | Third Generation: Reinforced steel truss floor deck | 4th Generation: TDD Assembled Demountable Reinforced Steel Truss Floor Deck |
Section 3:TDV、TDMProduct Introduction: I-Beam Truss Floor Deck
TDV、TDMA type steel truss floor deck consists of steel rebars processed into a steel truss at the factory, which is then welded to a galvanized steel plate bottom mold to form a composite template integrated with the steel truss. During the construction phase, steel truss deck can bear the construction load, directly laid on the beams, and concrete pouring can be achieved with simple reinforcement work. As it completely replaces the formwork function, it reduces the board Engineering for installation and dismantling, significantly enhances the efficiency of floor construction.
IV. 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
Upper and lower string reinforcement bars: Hot-rolled spiral steel bars with excellent reputationHRB400Grade, or cold-rolled ribbed reinforcing steelCRB550Grade.
Cold-rolled smooth rebar for the web.
TDV、TDMPatterned base mold steel plate: Galvanized steel plate commonly used thickness0.4～0.5mmGlossy zinc coating on both sides120g/m2。
Section 6: Product Dimension Parameters:
| Name | Specification |
| Rebar diameter | 6-14mm |
| Web member steel bar diameter | 4-7mm |
| Reinforcement truss height ht | 70-270mm |
| Supporting horizontal steel bar diameter | 10mm（h≤100mm），12（h>100mm） |
| Vertical steel bar diameter of the bracket | 12mm（h≤100mm），14（h>100mm） |
| Base mold steel plate thickness | 0.4-0.6mm |
| Base mold steel plate width | 590mm |
| Concrete protective layer thickness | 15mm，20mm，25mm，30mm |
| Reinforced steel truss floor deck length | 1.0-12m |
SevenTDMAdvantages of Type Steel I-Beam Truss Deck:
Excellent weld point load-bearing capacity
"M"Type upright rib width reaches2-3mm, Welding point bearing capacity of steel rebar truss web members is approximately the same as that of ordinary"V"Lipped plate type weld joint load-bearing capacity1.5 Not provided.
Good performance with stable results
The distance between the steel truss and the welding point on the bottom form is approximately5mmThe bottom mold surface is free of weld points, preventing rust spots, and boasts superior corrosion resistance.TDV Steel truss floor deck, eliminating the possibility of future maintenance.
Avoid leakage
Due to the absence of welding points on the base mold, there are no holes that can be pierced, thus preventing leakage of the welding material.
TDMApplications for Type Reinforced Steel Truss Plates
Suitable for high-purity factory buildings without suspended ceilings, for environments with stringent requirements for indoor air quality such as laboratories, machine rooms, and information centers, and for applications where air humidity and salinity are a concern. High coastal city usage; buildings without suspended ceilings, exposed public structures; high-rise office buildings with superior quality sold directly before ceiling decoration.
TDVSteel I-Beam Truss Plate Application Industries
Low requirement for panel bottom effect, or in various multi-story steel structure factories and public buildings with suspended ceilings.
EightApplication Solutions:
High-rise, high-rise structure
High-rise buildings and structures have stringent requirements not only for structural quality but also for construction timelines and on-site safety. Reinforced truss floor deck panels simultaneously serve as construction molds and bearing components. Reinforcement bar"Dual role"Our products excel in high-rise and super high-rise construction, utilizing reinforced truss floor slabs in high-rise buildings to create multiple relatively independent and safe work surfaces. Enhanced construction progress.
Bi-directional plate structure
Compared to corrugated steel sheets, designing and constructing bidirectional panels is highly advantageous for reinforced steel truss floor decks. Without increasing the floor thickness, reinforced steel truss floor decks can be installed on-site Performing bidirectional reinforcement makes it easy to meet the design requirements for bidirectional slabs.
Large-span structure (with supporting solutions)
In large-span applications, to save costs, smaller diameter rebars can be used for the steel truss floor deck. During construction, a simple temporary support should be set in the middle of the floor span prior to pouring concrete. Supports are designed to meet construction requirements while also protecting the floor's strength to the required level upon reaching the operational stage.
Long-span structure (no support scheme)
Reinforced truss floor slabs, thanks to their technically sound mechanical design, can achieve appropriate adjustment of steel bar types.5mUnsupported large panel span design requirements. In practical application, it can accelerate the construction process. Efficient work progress, cost-saving in construction.
Thick plate design
For300mmAbove this thickness of floor slab, reinforced truss floor decks can be used for thick slab design. This can reduce or eliminate temporary supports, speeding up construction progress.
The use of steel truss floor slabs in multi-story reinforced concrete structures can reduce the labor required for on-site formwork installation and removal, decrease on-site manpower, and significantly accelerate the project进度.
Reinforced concrete or steel structure residential projects
Such structures generally have high requirements for the finishing effect of the floor slab, necessitating plastering work and employing multidimensionalTDDAssembled removable steel truss floor deck can effectively address This challenge meets the demand for construction speed in steel structure projects while also allowing for the removal of the bottom form after the floor slab is completed, achieving a satisfactory finish.
Circular, elliptical, other irregular shapes
Such structural floor slabs are typically designed as bidirectional plates, 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 floor construction are often complicated. Challenges in construction can be effectively addressed by using reinforced steel truss floor slabs.
Gabled roof structure
For sloping roofs, reinforced truss deck panels can be used for roofing. The deck panels can be laid along the slope or parallel to it, both options are feasible. The roof must be properly treated for performance stability.
