A steel truss floor deck

Abstract

This utility model relates to the field of building technology, and in particular to a steel truss floor deck, comprising a concrete slab with an embedded steel plate; a steel truss connected to the embedded steel plate and extending beyond the concrete slab; a first joint assembly and a second joint assembly, respectively located on both sides of the concrete slab. The first joint assembly is used to mate with the second joint assembly on an adjacent concrete slab, and the second joint assembly is used to mate with the first joint assembly on an adjacent concrete slab. This utility model facilitates sealing of the joints and reduces concrete leakage.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a steel truss floor deck. Background Technology

[0002] Steel truss floor slabs are an advanced composite structure widely used in modern building construction. They combine the advantages of steel bars and concrete, two building materials, and thus exhibit many outstanding properties, making them highly favored in various building projects.

[0003] Lightweight construction is a significant advantage. Compared to traditional solid concrete floor slabs, steel truss floor slabs reduce weight considerably while maintaining structural strength. This not only lowers the load-bearing requirements of the foundation but also saves substantial costs and manpower in material transportation, hoisting, and construction. Steel truss floor slabs are widely used in traditional building construction. They typically consist of a pre-cast thin concrete layer with embedded steel plates. These plates connect to the steel truss and extend beyond the concrete layer, used to join multiple floor slabs. Currently, for large areas requiring concrete pouring, multiple floor slabs are often joined together, with thin formwork or rubber seals used at the joints. However, these thin boards or rubber seals can leak under the weight of the concrete, leading to hollow areas or cracks in the poured concrete at the joints and reducing its strength.

[0004] Therefore, those skilled in the art are dedicated to developing a steel truss floor deck that facilitates sealing of joints and reduces concrete leakage. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a steel truss floor deck that facilitates sealing of joints and reduces concrete leakage.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A steel truss floor deck, comprising

[0008] A concrete slab, wherein a pre-embedded steel plate is embedded within the concrete slab;

[0009] A steel truss, which is connected to the embedded steel plate and extends beyond the concrete slab;

[0010] A first interlocking assembly and a second interlocking assembly are located on opposite sides of the concrete slab. The first interlocking assembly is used to mate with a second interlocking assembly on an adjacent concrete slab, and the second interlocking assembly is used to mate with a first interlocking assembly on an adjacent concrete slab.

[0011] The beneficial effects of adopting the above scheme are: the first and second joint components are located on both sides of the concrete slab and cooperate with each other, which can effectively solve the problem of leakage caused by thin wood boards or rubber seals in traditional splicing methods. Especially when splicing multiple floor slabs in a large area of ​​pouring, the cooperation of these joint components can form a tighter connection, greatly reducing the leakage of concrete from the splice, thereby improving the quality of concrete pouring at the splice, avoiding problems such as hollowness or cracks, enhancing the stability and reliability of the entire floor deck structure, and extending its service life.

[0012] The first and second joint components are easy to connect and assemble, making it convenient for construction workers to operate. This reduces complex procedures and errors caused by human factors during the assembly process. At the same time, the good sealing performance at the joint reduces the risk of quality problems and rework caused by leakage later, improving construction efficiency and overall project quality, and saving construction time and costs.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the first lap assembly includes a first lap plate, the upper surface of which has at least one first lap boss and at least one first lap groove, the first lap boss and the first lap groove being spaced apart.

[0015] The second lap assembly includes a second lap plate, the lower end face of which has at least one second lap boss and at least one second lap groove, the second lap boss and the second lap groove being spaced apart.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the upper surface of the first joint plate is provided with a first joint boss and a groove, and the lower surface of the second joint plate is provided with a corresponding second joint boss and a groove. They are spaced apart and can be nested and interlocked during splicing, which can fit more tightly, effectively prevent concrete from leaking from the splice gap, reduce hollow cracks, and improve structural strength.

[0017] Furthermore, the surfaces of the first lap boss, the first lap groove, the second lap boss, and the second lap groove are all coated with a polymer sealing layer.

[0018] The beneficial effect of adopting the above-mentioned further solution is that the polymer sealing layer adheres more tightly to the concrete under the weight of the concrete, thus reducing leakage.

[0019] Furthermore, the concrete slab has multiple spaced anti-slip grooves.

[0020] The beneficial effects of adopting the above-mentioned further solutions are: the anti-slip grooves on the concrete slab can increase the coefficient of friction of the slab surface, provide a more stable foothold for construction workers when walking, operating and stacking materials, reduce the risk of slipping and ensure construction safety;

[0021] Meanwhile, the anti-slip grooves facilitate the interlocking of the concrete slab with the subsequently poured concrete, increasing the bonding ability between the original concrete slab and the newly poured concrete.

[0022] Furthermore, the concrete slab contains glass fibers or polypropylene fibers.

[0023] The beneficial effects of adopting the above-mentioned further solutions are: incorporating glass fiber or polypropylene fiber into the concrete slab can effectively inhibit micro-cracks caused by plastic shrinkage and drying shrinkage of concrete, enhance crack resistance, and improve the durability of the floor decking.

[0024] Furthermore, multiple anchor bolts are connected to the concrete slab.

[0025] The beneficial effects of adopting the above-mentioned further solutions are: the anchor rods are connected to the concrete slabs and can penetrate deep into the main structure of the building or beams and columns to form a solid anchoring system, which enhances the pull-out and slip resistance of the floor deck, ensures stability under earthquakes, wind loads and other effects, and improves the safety and reliability of the building structure.

[0026] Furthermore, the steel truss is also connected to lifting lugs.

[0027] The beneficial effects of adopting the above-mentioned further solutions are: the lifting lugs provide a stable support point for the floor decking hoisting, making the hoisting operation more convenient and efficient, reducing the wear and tear on hoisting equipment and wire ropes, reducing hoisting risks, and ensuring construction safety.

[0028] Furthermore, the steel truss includes a first steel bar and a second steel bar, the lower ends of the first steel bar and the second steel bar are connected to the embedded steel plate, and the upper ends of the first steel bar and the second steel bar are connected by a threaded rod;

[0029] Two adjacent first steel bars in the same column or two adjacent second steel bars in the same column are connected by reinforcing bars.

[0030] The beneficial effects of adopting the above-mentioned further scheme are: the lower ends of the first and second reinforcing bars are connected to the embedded steel plate, and the upper ends are connected by threaded rods to form a stable vertical connection system, which enhances the vertical bearing capacity of the floor deck, prevents the steel truss from tilting and deforming, and improves the structural stability.

[0031] Adjacent steel bars in the same row are connected by reinforcing bars to form a tight lateral connection, making the steel truss more stable in the horizontal direction. They can work together to resist horizontal loads and lateral forces, optimize the stress performance of the floor slab, and improve seismic and wind resistance.

[0032] Furthermore, the first and second lap joint bosses are arc-shaped or rectangular.

[0033] The advantages of adopting the above-mentioned further solutions are: the arc-shaped boss and the rectangular boss facilitate quick alignment and embedding during splicing, reduce splicing time and labor costs, improve construction efficiency, and at the same time, form a multi-loop structure to reduce concrete leakage.

[0034] Furthermore, there is a connecting fastener between the ends of two adjacent concrete slabs.

[0035] The beneficial effects of adopting the above-mentioned further solutions are: the connecting fasteners can further fix the ends of adjacent concrete slabs, prevent misalignment or separation at the joint due to external forces, enhance the integrity and stability of the joint, and improve the load-bearing capacity and durability of the floor decking during construction and use. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a steel truss floor deck structure according to a specific embodiment of the present utility model;

[0037] Figure 2 This is a side view of a steel truss floor decking structure according to a specific embodiment of the present invention. The components represented by each number in the drawing are listed below:

[0038] 1. Concrete slab; 2. Steel truss; 3. First joint assembly; 4. Second joint assembly; 5. First joint plate; 6. First joint groove; 7. First joint boss; 8. Second joint plate; 9. Second joint boss; 10. Second joint groove; 11. Anti-slip groove; 12. Anchor bolt; 13. Lifting lug; 14. First reinforcing bar; 15. Second reinforcing bar; 16. Threaded rod; 17. Reinforcing bar. Detailed Implementation

[0039] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0040] In the description of this utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] like Figure 1 , Figure 2 As shown, a steel truss floor deck includes

[0044] Concrete slab 1, with a pre-embedded steel plate inside;

[0045] Steel truss 2, steel truss 2 is connected to the embedded steel plate and extends out of the concrete slab 1;

[0046] The first joint component 3 and the second joint component 4 are located on both sides of the concrete slab 1, respectively. The first joint component 3 is used to cooperate with the second joint component 4 on the adjacent concrete slab 1, and the second joint component 4 is used to cooperate with the first joint component 3 on the adjacent concrete slab 1.

[0047] In this invention, the first joint component 3 and the second joint component 4 are located on both sides of the concrete slab 1, and cooperate with the corresponding second joint component 4 and the first joint component 3, which can effectively solve the problem of leakage that easily occurs in thin wood boards or rubber seals in traditional splicing methods.

[0048] like Figure 1 , Figure 2 As shown, in some embodiments, the first seam assembly 3 includes a first seam plate 5, the upper surface of the first seam plate 5 having at least one first seam boss 7 and at least one first seam groove 6, the first seam boss 7 and the first seam groove 6 being spaced apart; the second seam assembly 4 includes a second seam plate 8, the lower surface of the second seam plate 8 having at least one second seam boss 9 and at least one second seam groove 10, the second seam boss 9 and the second seam groove 10 being spaced apart.

[0049] The first overlapping boss 7 and the second overlapping boss 9 are arc-shaped or rectangular, which helps to provide better fit during splicing, thereby enhancing the tightness and stability of the splice, effectively preventing concrete leakage at the splice, and ensuring the integrity and strength of the structure.

[0050] The surfaces of the first overlapping boss 7, the first overlapping groove 6, the second overlapping boss 9, and the second overlapping groove 10 are all coated with a polymer sealing layer. This polymer sealing layer not only further enhances the sealing performance of the joint, preventing concrete grout leakage, but also resists the erosion of moisture and chemicals in the external environment, providing excellent protection for the overlapping components and extending their service life. Furthermore, the polymer sealing layer adheres more tightly under the weight of the concrete. In other embodiments, the polymer sealing layer is composed of a polyurethane foam and a silicone sealant, wherein the polyurethane foam layer has a thickness of 3 mm-5 mm, and the silicone sealant layer has a thickness of 1 mm-2 mm.

[0051] like Figure 1 , Figure 2 As shown, in another embodiment, the concrete slab 1 has multiple spaced anti-slip grooves 11 with rough surfaces. Newly poured concrete slurry embeds into these grooves and solidifies, forming a mechanical interlocking force similar to that between reinforcing steel and concrete. The concrete slab 1 contains glass fibers or polypropylene fibers. The polypropylene fibers disperse stress and limit aggregate settlement. When cracks occur, the interfacial bonding between the polypropylene fibers and the concrete slows down crack propagation. Multiple anchor rods 12 are connected to the concrete slab 1. These anchor rods 12 are connected to the concrete slab and can penetrate deep into the main building structure or beams and columns, forming a robust anchoring system. This enhances the floor slab's pull-out and slip resistance, and also supports the weight of newly poured concrete.

[0052] In this embodiment, the steel truss 2 is also connected to a lifting lug 13. In a specific embodiment, lifting lugs 13 are installed at all four corners of the concrete slab 1. The lifting lugs 13 can be threadedly connected to the steel truss 2 via bolts, which facilitates subsequent dismantling. The lifting lugs 13 facilitate the hoisting of the floor deck during construction, improving the convenience and efficiency of construction.

[0053] like Figure 1 As shown, in this embodiment, the steel truss 2 includes a first steel bar 14 and a second steel bar 15. The lower ends of the first steel bar 14 and the second steel bar 15 are connected to the embedded steel plate, and the upper ends of the first steel bar 14 and the second steel bar 15 are connected by a threaded rod 16. Two adjacent first steel bars 14 or two adjacent second steel bars 15 in the same column are connected by a reinforcing bar 17. The application of the reinforcing bar 17 further enhances the integrity and resistance to lateral deformation of the steel truss 2, so that the floor deck can maintain good stability and load-bearing performance when facing horizontal loads, and also facilitates the subsequent installation of new steel bars.

[0054] Connecting fasteners are also provided between the ends of two adjacent concrete slabs 1. Specifically, after splicing, the connecting fasteners can further enhance the connection strength at the splice, preventing loosening or separation due to external impact or vibration, and ensuring the stability and reliability of the entire floor decking system during long-term use. The connecting fasteners can be connecting pins, with an open groove at one end of the concrete slab 1, in which the connecting pin is installed. The pins on two adjacent concrete slabs 1 are connected by connecting pieces. The open groove ensures a tight fit between the two adjacent concrete slabs 1 and prevents concrete slurry from overflowing.

[0055] In other embodiments, multiple sensors, including strain sensors, displacement sensors, and temperature sensors, are embedded inside the concrete slab 1 and at key locations in the steel truss 2. These sensors can monitor the stress, deformation, and ambient temperature changes of the floor slab in real time during use. The strain sensors are used to detect the strain generated in the concrete slab 1 and the steel truss 2 under load, the displacement sensors are used to measure the overall displacement of the concrete slab 1 and the relative displacement between adjacent slabs, and the temperature sensors can monitor the effect of ambient temperature on the performance of the concrete slab 1. These sensors are connected to an intelligent control unit located near the floor deck via wires. The intelligent control unit integrates a data acquisition module, a signal processing module, a communication module, and a central processing unit. The data acquisition module is responsible for collecting data transmitted from the sensors. The signal processing module performs filtering, amplification, and conversion on the data, and then transmits the processed data to the central processing unit for analysis and calculation. The central processing unit determines whether the current state of the floor deck is normal based on preset algorithms and thresholds. Once an abnormality is detected, such as stress exceeding design limits, displacement exceeding allowable range, or abnormal temperature changes, it immediately sends an alarm message to the remote monitoring center through the communication module and initiates corresponding emergency measures, such as shutting down equipment in the floor deck area and restricting personnel access, to ensure the safe use of the building structure.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel trussed floor deck characterized by: include A concrete slab (1) having a pre-embedded steel plate inside; A steel truss (2) is connected to the embedded steel plate and extends out of the concrete slab (1); The first joint assembly (3) and the second joint assembly (4) are located on both sides of the concrete slab (1). The first joint assembly (3) is used to cooperate with the second joint assembly (4) on the adjacent concrete slab (1), and the second joint assembly (4) is used to cooperate with the first joint assembly (3) on the adjacent concrete slab (1).

2. The steel reinforced trussed floor deck according to claim 1, wherein: The first lap assembly (3) includes a first lap plate (5), the upper surface of the first lap plate (5) has at least one first lap boss (7) and at least one first lap groove (6), the first lap boss (7) and the first lap groove (6) are spaced apart; The second lap assembly (4) includes a second lap plate (8), the lower end face of which has at least one second lap boss (9) and at least one second lap groove (10), the second lap boss (9) and the second lap groove (10) being spaced apart.

3. The steel reinforced trussed floor deck according to claim 2, wherein: The surfaces of the first overlap protrusion (7), the first overlap groove (6), the second overlap protrusion (9), and the second overlap groove (10) are all coated with a polymer sealing layer.

4. The steel truss floor decking according to claim 1, characterized in that: The concrete slab (1) has multiple anti-slip grooves (11) spaced apart.

5. The steel truss floor decking according to claim 1, characterized in that: The concrete slab (1) contains glass fibers or polypropylene fibers.

6. The steel truss floor decking according to claim 1, characterized in that: Multiple anchor rods (12) are connected to the concrete slab (1).

7. The steel truss floor decking according to claim 1, characterized in that: The steel truss (2) is also connected to a lifting lug (13).

8. The steel truss floor decking according to claim 1, characterized in that: The steel truss (2) includes a first steel bar (14) and a second steel bar (15). The lower ends of the first steel bar (14) and the second steel bar (15) are connected to the embedded steel plate, and the upper ends of the first steel bar (14) and the second steel bar (15) are connected by a threaded rod (16). Two adjacent first steel bars (14) or two adjacent second steel bars (15) in the same column are connected by reinforcing bars (17).

9. The steel truss floor decking according to claim 2, characterized in that: The first overlapping boss (7) and the second overlapping boss (9) are arc-shaped or rectangular.

10. The steel truss floor decking according to claim 1, characterized in that: There are also connecting fasteners between the ends of two adjacent concrete slabs (1).

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