I. Overview of Steel Rebar Truss Floor Deck
Reinforced truss floor deck is a composite formwork consisting of steel reinforcement processed into a truss in a factory, which is then welded to a galvanized steel sheet bottom mold. During the construction phase, the steel reinforcement is...
The truss deck can bear construction loads, and can be directly laid on beams for simple rebar work before concrete pouring. As it completely replaces the formwork function, it reduces the need for formwork installation and removal.
The process significantly enhances the efficiency of floor construction.A floor deck product that enhances customer value,We have eliminated factors that contribute to increased material costs.,Change the usage of the profiled steel plate to only be used as a floorboard
Templates during the construction phase, reducing the consumption of corrugated steel sheets, and lowering the requirements for the stable coating of the corrugated steel sheets' performance. We have altered the load-bearing mode of the deck sheet during construction.,During the construction phase by corrugated
Steel plate stiffness is now provided by reinforced trusses, thereby offering enhanced floor deck stiffness to accommodate large 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; no treatment is required for stability, and it does not need to meet the building's service life requirements, thus eliminating the need to consider maintenance costs later on.
Section II: Advantages of Steel Rebar Truss Floor Deck
(1)Economic
Reinforced truss has a rational load-bearing pattern, economic material selection, and significant cost advantages in comprehensive construction.
Adjustable truss height and rebar diameter to accommodateetFlooring suitable for large spans
Can be designed as a two-way board
(2)Convenient
On-site rebar tying work 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 traditional cast-in-place slabs, with excellent crack resistance for the floor.
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 stress phase during use and does not require consideration of 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 lap design, effectively ensuring the construction quality of composite floor assemblies.
Steel reinforcement truss deckSimilar bidirectional stiffness benefits seismic resistance in buildings.
Screw pin welding quality is easier to ensure.
Product Development History of Floor Decking
Best-selling item: Non-composite corrugated steel sheet Plain Open Sheet | Superior Substitute: Composite Corrugated Steel Sheet Open-end plates, close-end plates, and retracted-end plates | Third Generation: Reinforced steel truss floor deck | Fourth Generation: TDD removable steel truss floor deck |
Section 3:TDV、TDMProduct Introduction: Type Reinforced Steel Truss Floor Deck
TDV、TDMThe Type Steel Truss Floor Deck is a composite formwork that involves processing the steel rebars into steel trusses in the factory and then welding these trusses with galvanized corrugated steel sheets to form an integrated formwork. During the construction phase, steel truss floor decks can bear construction loads directly laid on beams, and concrete pouring can be done with simple reinforcement work. As they completely replace the formwork function, they reduce the board... Erecting and dismantling projects, with superior quality, enhance the efficiency of floor construction.
Section 4: Product Composition
TDV、TDMThe type steel truss floor deck consists of top chord steel, bottom chord steel, web steel, bottom form, and support steel.
V. Material Parameters
Top and bottom rebars: Hot-rolled coil rebars with a good reputationHRB400Grades or cold-rolled ribbed reinforcing steelCRB550Grade
Cold-rolled round rebars for the web member.
TDV、TDMGalvanized steel sheet for mold base: commonly used thickness0.4～0.5mmGlossy zinc coating on both sides120g/m2。
Section 6: Product Dimensional Specifications:
| Name | Specification |
| Reinforcement bar diameter | 6-14mm |
| Hollow section steel bar diameter | 4-7mm |
| Reinforcement truss height ht | 70-270mm |
| Supporting 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 truss floor deck length | 1.0-12m |
Section 7:TDMAdvantages of Type Steel Beam Deck:
Excellent weld joint bearing capacity
"M"Type straight rib width reaches2-3mmApproximately the weld point bearing capacity of the steel rebars in the web of the steel truss with the steel rebars is about"V"Type rib plate weld point load-bearing capacity1.5 Multiple.
Effective and stable performance
The distance between the steel truss and the welding point of the bottom form is approximately5mmThe bottom mold surface is free of weld points, preventing rust spots and exhibiting superior corrosion resistance.TDV Steel joist deck, avoiding the possibility of future maintenance.
Avoid slippage
Due to the absence of weld points on the mold base, there are no holes that can be pierced, ensuring no leakage of the welding material.
TDMApplications for Type Steel Truss Deck Plates
Suitable for cleanrooms without suspended ceilings, for areas with high requirements for indoor air quality such as laboratories, data centers, and server rooms, and ideal for environments with specific humidity and salinity levels. High coastal city usage; buildings without suspended ceilings, exposed public structures; high-rise office buildings of superior quality sold directly before ceiling renovation.
TDVSteel I-Beam 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 stringent quality standards for their construction but also have specific requirements for the project timeline and on-site safety. Reinforced truss deck plates offer both construction formwork and load-bearing capabilities simultaneously. Reinforcement bar"Dual Role"High-rise and super high-rise construction can fully leverage its advantages. Reinforced truss floor slabs are used in high-rise buildings, allowing for multiple relatively independent and safe work surfaces. Enhanced construction progress.
Bi-directional panel structure
Compared to corrugated steel sheets, designing and constructing for bidirectional panels is highly advantageous for reinforced truss floor decks. Without increasing the floor thickness, reinforced truss floor decks can be installed on-site Double-reinforcement can easily meet the design requirements of two-way slabs.
Large-span structure (with supporting solutions)
In large-span applications, to save costs, the steel truss floor deck can utilize smaller-sized steel bars. During construction, a simple temporary setup is placed in the middle of the floor span prior to pouring concrete. Supports, which meet construction requirements, also protect the floor strength to meet the requirements for the usage stage.
Large-span structure (no support solution)
Reinforced steel truss floor decks, with their technically sound mechanical design, can achieve by appropriately adjusting the steel bar specifications.5mDesign requirements for unsupported large plank spanning. In practical application, it can accelerate the construction process. Improved work progress, cost savings in construction.
Thick plate design
For300mmAbove-thickness slabs can be designed using steel truss floor deck 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 on-site formwork installation and removal, decrease manual labor, and effectively accelerate the project schedule.
Reinforced concrete or steel frame residential projects
Such structures generally have high requirements for the finishing effect of the floor slab bottom, necessitating a plastering project, utilizing multi-dimensionalTDDDetachable steel truss floor deck assembly effectively addresses This challenge meets the requirements for construction speed in steel structure projects and also allows for the removal of the bottom form after the floor construction is completed, achieving a satisfactory finishing effect.
Circular,椭圆形,Other shapes
Such structural floor slabs are typically designed as bidirectional, not only supporting 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. Difficulties in construction can be effectively addressed by using reinforced steel truss floor slabs.
Sloped roof structure
For sloped roofs, steel truss deck plates can be used for roofing. The deck plates can be laid down along the slope or parallel, both are feasible. The roof must undergo stable performance treatment.
