I. Overview of Steel Truss Floor Deck
Reinforced truss floor deck is a composite template that involves processing the steel rebars within the floor into steel trusses in the factory, and then welding these steel trusses together with galvanized corrugated steel sheet as the bottom mold into a single unit. During the construction phase, the steel rebars...
Joist girder deck can bear construction loads, can be directly laid on beams, and concrete pouring can be carried out with simple steel bar work. As it completely replaces the formwork function, it reduces the setup and dismantling of formwork supports.
The process significantly enhances the efficiency of floor construction.A floor deck product that enhances customer value,We have eliminated factors causing the increase in material costs.,Change the use of the pressed steel plate to only be used as floor slabs
Templates during the construction phase, reducing the usage 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 sheets during construction.,During the construction phase by formed
Steel plates are now replaced by reinforced truss to provide enhanced rigidity, allowing for increased floor slab stiffness to accommodate larger unsupported spans. We have reduced the costs for customers' future maintenance.,Pressure
Sheet steel, used only as a template during the construction phase, does not require treatment for stability and does not need to meet the lifespan requirements for building use, thus eliminating the need to consider maintenance costs later on.
Section 2: Advantages of Steel Reinforced Truss Decking
(1)Economic
Reinforced steel truss has a rational load-bearing pattern, economic material selection, and obvious advantages in overall cost-effectiveness.
Adjustable truss height and rebar diameter to suitetBoards for wide spans
Can be designed as a double-sided board
(2)Convenient
On-site rebar tying workload can be reduced60%-70%Further缩短construction timeline is achievable.
The truss loading pattern can provide greater floor deck stiffness, significantly reducing or eliminating the need for temporary supports.
(3)Safety
Mechanical properties are essentially the same as traditional cast-in-place floor slabs, with excellent crack resistance in the floor.
The fire resistance is comparable to traditional cast-in-place floor slabs and superior to composite steel deck floor slabs.
The bottom mold is not in use during the stress phase 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 top and bottom layers of rebar and the thickness of the protective layer.
Double discount edge lap design, effectively ensuring the construction quality of composite floor assembly.
Steel reinforcing truss deckSimilar bidirectional stiffness benefits seismic resistance in buildings.
Screw钉welding quality is easier to ensure.
Roof Decking Product Development History
Best-selling Item: Non-combined profiled steel plate Plain Flanged Plate | Superior Substitute: Composite corrugated steel sheet Open-end plate, Close-end plate, and Constricted-end plate | 3rd Generation: Reinforced steel truss floor deck | Fourth Generation: TDD assembled removable steel truss floor deck |
III.TDV、TDMIntroduction to Steel Beam Truss Floor 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, then welding the steel truss with a galvanized corrugated steel bottom mold into a single integrated form. During the construction phase, steel truss floor decks can bear construction loads directly laid on beams, and concrete pouring can be achieved with simple reinforcement work. As they fully replace the formwork function, they reduce board... Erecting and dismantling projects, with superior quality, have significantly enhanced the efficiency of floor construction.
Section 4: Product Composition
TDV、TDMThe type of truss floor slab is composed of upper chord reinforcement, lower chord reinforcement, web reinforcement, bottom form, and support reinforcement.
V. Material Parameters
Upper and lower string steel bars: Hot-rolled coil steel bars with good reputationHRB400Grade or cold-rolled ribbed steel barCRB550Grade
Hollow section rebars: Cold-rolled round rebars used.
TDV、TDMTypical mold base steel plate: Zinc-coated steel plate commonly used thickness0.4～0.5mmGlossy zinc coating on both sides120g/m2。
Section 6: Product Size Parameters:
| Name | Specification |
| Rebar diameter | 6-14mm |
| Hollow steel bar diameter | 4-7mm |
| Reinforcement truss height ht | 70-270mm |
| Supporting seat horizontal reinforcing bar diameter | 10mm（h≤100mm），12（h>100mm） |
| Vertical reinforcement bar diameter of the 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 steel truss floor deck length | 1.0-12m |
Section 7:TDMAdvantages of Type Steel I-Beam Truss Deck:
Excellent weld joint bearing capacity
"M"Type upright rib width reaches2-3mm, the weld point bearing capacity of the steel rebars in the web of steel truss is approximately the same as that of ordinary"V"Lipped plate type weld joint load-bearing capacity1.5 Multiple.
Effective and stable performance
The distance between the steel truss and the welding point on the bottom 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 maintenance later on.
Avoid leakage
Due to the absence of welding points on the base mold, there are no holes prone to welding through, thus preventing leakage of the paste at the welding points.
TDMApplication Industries for Type Steel Truss Deck
Suitable for high-purity factory buildings without suspended ceilings, as well as for laboratories, machine rooms, data centers, and other areas with stringent indoor air quality requirements. Can be used in 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 decoration.
TDVSteel I-Beam Truss Deck Applications
Low requirement for ceiling effect, or in multi-story steel structures and public buildings with suspended ceilings.
EightApplication Solutions:
High-rise, high-rise structure
High-rise buildings and structures not only demand strict quality standards for construction but also have specific requirements for project timelines and on-site safety. Reinforced truss floor deck panels offer both construction molds and bearing capacity. Reinforcement bar"Dual Role"Our high-rise and high-rise construction services fully capitalize on their advantages. Reinforced truss floor slabs are used in high-rise buildings, allowing for multiple relatively independent and safe work surfaces. Enhanced construction progress.
Bilayer panel structure
Compared to corrugated steel sheets, designing and constructing bidirectional slabs is highly beneficial for reinforced truss floor decks. Without increasing the floor thickness, reinforced truss floor decks can be installed on-site Reinforcing in both directions is easily achieved, making it simple to meet the design requirements for bidirectional slabs.
Large-span structure (with supporting solutions)
In large-span applications, to save costs, the steel truss floor deck can use smaller size steel rebars. During construction, before the concrete pouring, simple temporary supports are set in the middle of the floor span. Supports are designed to meet construction requirements while also ensuring the floor's strength meets usage stage standards.
Large-span structure (no support solution)
Reinforced steel truss deck plates, thanks to their technically rational mechanical design, can achieve appropriate adjustment of the steel bar type.5mUnsupported large panel span design requirements. In practical application, it can accelerate implementation. Efficient work progress, cost-saving in construction.
Thick plate design
For300mmAbove-thickness floors can utilize steel truss floor decks for thick slab design. This can reduce or eliminate the need for temporary supports, thereby accelerating construction progress.
High-rise reinforced concrete structures employing steel truss floor deck in their reinforced concrete construction can reduce on-site formwork setup and dismantling work, minimize labor costs, and significantly accelerate the project timeline.
Reinforced concrete or steel structure residential projects
Such structures typically demand high-quality finishing on the floor slab bottom, necessitating plastering work, employing multidimensionalTDDAssembled removable steel truss floor deck can effectively address This challenge meets the requirements for construction speed in steel structure projects while also allowing for the removal of the bottom form after the floor construction is completed, achieving a satisfactory finish.
Circular,椭圆形, Other Shapes
Such structural floor slabs are typically designed as two-way slabs, 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 are often... Challenges in construction can be effectively addressed by using reinforced truss deck slabs.
Gable roof structure
For sloping roofs, reinforced truss deck sheets can be used for roofing. The deck sheets can be laid either along the slope or parallel to it, both options are feasible. The roof must undergo stable performance treatment.
