I. Overview of Steel Reinforced Truss Deck
Reinforced truss deck is a composite template that integrates the reinforcement steel in the floor slab into a truss structure in the factory, then welds this steel truss with a galvanized corrugated steel bottom mold into a single unit. During the construction phase, the steel...
I-beam floor deck can bear construction loads, directly laid on beams, and simple steel reinforcement work is required to pour concrete. As it completely replaces the formwork function, it reduces formwork installation and dismantling labor
The process significantly enhanced the efficiency of floor construction.A roof deck product that enhances customer value,We have eliminated factors causing the increase in material costs.,Change the usage of the corrugated steel plate to solely serve as a floorboard
Templates during the construction phase; reduce the usage of corrugated steel sheets and lower the requirements for the stable coating of the corrugated steel sheet performance. We have altered the load-bearing pattern of the deck plate during construction.,During the construction phase, by molding
Steel plate stiffness is now provided by reinforced trusses, offering greater floor deck stiffness to accommodate larger unsupported floor spans. We have reduced the costs for customers' future maintenance.,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 Decking
(1)Economic
Reinforcing truss has a rational load-bearing mode, economical material selection, and significant cost advantage in the comprehensive price.
Adjustable truss height and steel bar diameter for suitabilityetFor wider spans of floor
Can be designed as a double-sided board
(2)Convenient
On-site rebar tying work volume can be reduced60%-70%Further shorten the construction period.
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 floor.
Fire-resistant performance is comparable to traditional cast-in-place floor slabs and superior to composite steel deck floor slabs.
The mold base does not participate in the loading 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 layers and the thickness of the protective layer.
Double discount edge overlap design, effectively ensuring the construction quality of composite floor assembly.
Steel rebar truss floor deckSimilar bidirectional stiffness, conducive to seismic resistance of buildings.
Screw钉welding quality is easier to ensure.
Roof Decking Product Development History
Best-selling Item: Non-composite pressed steel plate (Standard Open End Plate) | Superior Substitute: Composite corrugated steel plate Open-end plates, close-end plates, and shrink-end plates | Third Generation: Reinforced steel truss floor deck | Fourth Generation: TDD assembled removable steel truss floor deck |
Section 3:TDV、TDMProduct Introduction: Steel Beam Truss Deck
TDV、TDMA type steel truss floor deck is a composite formwork that involves processing the steel reinforcement in the factory into a steel truss and then welding the steel truss to the galvanized corrugated steel bottom mold in one piece. During construction, steel truss floor slabs can bear construction loads, directly laid on beams, and simple reinforcement work allows for concrete pouring. As they completely replace the formwork function, they reduce the need for additional boards. Erecting and dismantling projects 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
Upper and lower chord rebars: Utilizing well-reputed hot-rolled coil rebarsHRB400Grade, or cold-rolled ribbed steel barsCRB550Grade.
Cold-rolled smooth rebar for the web.
TDV、TDMPatterned mold steel plate: Galvanized steel plate, commonly used thickness0.4～0.5mmGauge of double-sided galvanized coating120g/m2。
Section 6: Product Dimension Parameters:
| Name | Spec. |
| Rebar diameter | 6-14mm |
| Hollow section steel bar diameter | 4-7mm |
| Reinforcement 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 |
| Bottom die steel plate width | 590mm |
| Concrete protective layer thickness | 15mm，20mm，25mm，30mm |
| Reinforced truss floor deck length | 1.0-12m |
SevenTDMAdvantages of Type Steel Beam Truss Deck:
Excellent weld joint bearing capacity
"M"Type straight rib width reaches2-3mmThe weld point bearing capacity of the steel rebar truss web members is approximately equal to that of the ordinary steel rebars."V"Lipped plate type weld joint load-bearing capacity1.5 Multiple.
Effective and stable performance
The distance from the steel truss to the welding point on the base form is approximately5mmThe bottom mold surface is free of weld points, will not produce rust spots, and has superior corrosion resistance.TDV Type 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, and no leakage of soldering paste will occur at the welding points.
TDMApplication Industry for Type Steel Truss Deck
Suitable for clean rooms without suspended ceilings, as well as in environments with high requirements for indoor air quality such as laboratories, data centers, and information centers. Can be used in areas with specific humidity and salinity levels. High coastal city usage; public buildings without suspended ceilings, exposed; high-rise office buildings of superior quality sold directly before ceiling decoration.
TDVH-shaped steel truss deck applications
Low requirement for panel bottom effect, or in multi-story steel structure factories and public buildings with suspended ceilings.
EightApplication Solutions:
High-rise, high-rise structure
High-rise buildings and structures have not only stringent requirements for structural quality but also specific demands regarding the construction timeline and site safety. Reinforced truss floor deck offers both construction formwork and bearing capacity. Reinforcement bar"Dual Role"High-rise and superstructure construction can fully leverage its advantages. Reinforced truss deck slabs are used in high-rise buildings, forming multiple relatively independent and safe working surfaces. Enhanced construction progress.
Bi-directional panel 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 Reinforcement in both directions is easily achieved, making it simple to meet the design requirements for two-way slabs.
Large-span Structure (with support scheme)
In large-span applications, to save costs, light-gauge steel joist deck slabs can be used with smaller steel bars. During construction, simple temporary supports are set in the middle of the floor span prior to casting concrete. Supports are provided to meet construction requirements while also ensuring the floor strength meets the requirements for the usage stage.
Large-span structure (without support scheme)
Steel truss floor deck, thanks to its technically rational mechanical design, by appropriately adjusting the steel bar specifications, can achieve5mUnsupported large plate cross design requirements. In practical application, it can accelerate the implementation. Efficient work progress, cost savings in construction.
Thick plate design
For300mmAbove-thickness slabs can be designed using reinforced truss deck panels to reduce or eliminate temporary supports, thereby accelerating 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 dismantling, decrease on-site manpower, and significantly accelerate the project timeline.
Reinforced concrete or steel frame residential projects
This type of structure typically demands higher finish requirements for the floor slab bottom, necessitating a plastering project, using multi-dimensionalTDDAssembled removable steel truss floor deck can effectively address This challenge meets the demand for construction speed in steel structure projects and also allows for the removal of the bottom form after floor construction, achieving a satisfactory decorative effect.
Round,椭圆形,Other 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 for floor construction are often Difficulties in construction can be effectively addressed by using reinforced steel truss floor decks.
Gable roof structure
For sloping roofs, reinforced truss deck panels can be used for roof sheeting. The deck panels can be laid in the slope or parallel, both are feasible. The roof must undergo stable performance treatment.
