Fabricated ultrathin fine aggregate concrete truss rib floor support plate and construction method thereof

Abstract

The invention discloses an assembly type ultrathin fine aggregate concrete truss rib floor support plate and a construction method thereof.The assembly type ultrathin fine aggregate concrete truss rib floor support plate comprises truss rib floor support plate bodies installed on an installation beam, the two truss rib floor support plate bodies are positioned through assembly parts, and the truss rib floor support plate bodies are constructed through a construction part; the assembly part comprises a positioning groove and a mounting groove which are formed in the two ends of the truss rib floor support plate body respectively, and a positioning plate is fixed to the mounting groove through a fixing mechanism. The positioning grooves and the mounting grooves are formed in the two ends of the truss rib floor support plate bodies, the positioning plates are fixed through expansion bolts, the positioning plates and the positioning grooves are used in cooperation, and the ends of the positioning plates are of isosceles trapezoid structures, so that when the two adjacent truss rib floor support plate bodies are assembled, accurate limiting can be conducted in the left-right direction and the front-back direction in the transverse direction; and meanwhile, relative displacement in the vertical direction can be prevented through the self weight, and the assembling accuracy and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of truss-reinforced floor decking technology, and in particular to a prefabricated ultra-thin fine aggregate concrete truss-reinforced floor decking and its construction method. Background Technology

[0002] In the field of modern construction engineering, floor decking is an important building component and is widely used in various construction projects, especially in steel structure buildings where it plays a key role. It not only provides reliable floor support for buildings, but also affects the structural performance and construction efficiency of the entire building. As the construction industry continues to increase its requirements for construction efficiency, quality and safety, the existing floor decking assembly technology and construction methods can hardly meet the actual needs. Against this background, ultra-thin fine stone concrete truss reinforcement floor decking has emerged. Ultra-thin fine aggregate concrete truss-reinforced floor decks cleverly combine truss reinforcement with ultra-thin fine aggregate concrete, possessing both high strength and lightweight characteristics. This effectively reduces the self-weight of the floor deck and lowers the structural load, while the truss reinforcement provides stable support and enhances the overall load-bearing capacity. At the same time, construction is convenient and efficient, which can significantly shorten the construction period, and it also has good durability and fire and moisture resistance. Traditional floor decking has the following problems during the assembly and construction process: When installing adjacent floor decking, due to the lack of effective positioning devices, construction workers often need to spend a lot of time and effort on manual alignment, which is not only inefficient but also makes it difficult to ensure the precise alignment of the sides between floor decking, affecting subsequent decoration and functionality. Based on this, this application proposes a construction method for prefabricated ultra-thin fine stone concrete truss-reinforced floor decking, which can flexibly meet the assembly requirements of floor decking of different widths, and ensure that the floor decking is easy to quickly position and connect during the assembly process, thereby improving construction efficiency and assembly quality. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab and its construction method.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A prefabricated ultra-thin fine stone concrete truss-reinforced floor deck includes a truss-reinforced floor deck body installed on an installation beam. Two truss-reinforced floor deck bodies are positioned together by an assembly. The truss-reinforced floor deck bodies are constructed using a construction unit. The assembly includes positioning grooves and installation grooves respectively opened at both ends of the truss-reinforced floor deck body. A positioning plate is fixed to the installation groove by a fixing mechanism. The end of the positioning plate has an isosceles trapezoidal structure. The fixing mechanism includes installation holes and expansion bolts. The expansion bolts are installed inside the installation groove. The positioning plate has installation holes that cooperate with the expansion bolts.

[0005] As a further embodiment of the present invention: the construction part includes a horizontal slide assembly, a vertical slide assembly is movably connected to the horizontal slide assembly, a lifting plate is movably connected to both vertical slide assemblies, and a slot for cooperating with the lifting plate is opened on the side of the truss reinforcement floor deck body.

[0006] As a further embodiment of the present invention: the transverse slide assembly includes a slide body two and a slide body three, and the inner walls of the slide body two and the slide body three are respectively movably connected to slider one and slider two.

[0007] As a further embodiment of the present invention: guide rods are fixed on the inner walls of both sides of the slide body two, and the guide rods and the slider one are movably connected; a lead screw is movably connected between the inner walls of both sides of the slide body three.

[0008] As a further embodiment of the present invention: a drive motor is fixed on one side of the outer wall of the slide body three, and the output end of the drive motor is connected to one end of the lead screw through a coupling. A nut that works with the lead screw is installed on the side of the slider two. The vertical slide assembly is installed on the top of slider one and slider two.

[0009] As a further embodiment of the present invention: the vertical slide rail assembly includes a slide rail body 1 and a lead screw 1. The two slide rail bodies 1 are respectively fixed to the top outer wall of the slider 1 and the top outer wall of the slider 2. The lead screw 1 is movably connected between the top and bottom of the slide rail body 1, and a lead screw nut 1 that cooperates with the lead screw 1 is installed on the lifting plate. The two lead screws 1 are driven by a driving component.

[0010] As a further embodiment of the present invention: the driving component includes a driving sleeve, a driving rod and a vertical plate. The two vertical plates are respectively fixed to the top outer wall of the two slide body, and the driving sleeve is movably connected to the inner wall of a through hole opened on the surface of one of the vertical plates. The driving rod is movably connected to the inner wall of a through hole opened on the surface of the other vertical plate, and the outer circumference of the driving rod is integrally formed with a transmission column that is movably connected to the driving sleeve.

[0011] As a further embodiment of the present invention: a vertical plate is welded to the top of one of the slide body 1, and a second drive motor is fixed to the outer wall of one side of the vertical plate. The output end of the second drive motor is connected to one end of the drive rod through a coupling. The outer circumference of the drive rod and the outer circumference of the drive sleeve are both connected to the second bevel gear through a key, and the top of the lead screw is connected to the first bevel gear through a key. The first bevel gear and the second bevel gear mesh with each other.

[0012] As a further embodiment of the present invention: the connecting component installed between the slide body two and the slide body three includes a connecting plate, a guide plate and a guide cylinder. The connecting plate is fixed to the side wall of the slide body three, the guide cylinder is welded to one end of the connecting plate, the guide plate is fixed to the side wall of the slide body two, and one end of the guide plate and one end of the guide cylinder are movably connected.

[0013] A construction method for prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slabs includes the following steps: S1: Hoist the main body of the truss reinforcement floor deck to the top of the installation beam, and slowly lower it so that it is accurately placed on the marked position of the installation beam. Make preliminary adjustments to the position and orientation of the main body of the floor deck to ensure that it is consistent with the position of the measurement and layout line. S2: Drill holes in one of the truss reinforcement floor deck main bodies using an electric drill according to the design requirements, and then install expansion bolts into the holes to ensure that the expansion bolts are installed firmly. S3: Align the mounting holes on the positioning plate with the expansion bolts, insert the positioning plate, and use nuts to lock the positioning plate into the mounting groove; S4: Use the vertical slide assembly to move one end of the lifting plate to a position where it fits against the side of the slot on the side of the truss reinforcement floor slab, and then insert the lifting plate into the slot. S5: Start the drive device of the vertical slide assembly, drive the lifting plate to move up, and the lifting plate will lift the main body of the truss reinforcement floor deck until the height of the positioning plate on the main body of the floor deck is higher than the height of the positioning groove on the adjacent truss reinforcement floor deck. S6: Start the drive device of the transverse slide assembly. Through the coordinated action of slide body 2, slide body 3, and slider 1 and slider 2, drive the truss reinforcement floor deck body to move laterally until the positioning plate on the floor deck body moves directly above the positioning groove on the adjacent truss reinforcement floor deck body. S7: Again, use the vertical slide assembly to drive the truss reinforcement floor deck body to move down, so that the positioning plate on the floor deck body slowly descends until the positioning plate and the adjacent positioning groove are in contact with each other. Use the positioning plate and positioning groove to position the two adjacent truss reinforcement floor deck bodies in the lateral direction, and ensure that the sides of the two adjacent truss reinforcement floor deck bodies remain aligned. S8: Follow the steps above to complete the assembly and positioning work between other adjacent truss reinforcement floor slabs, ensuring that all floor slabs form a whole and a stable structure.

[0014] Compared with the prior art, the present invention provides a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab and its construction method, which has the following beneficial effects: 1. By setting positioning grooves and installation grooves at both ends of the truss-reinforced floor deck body, and using expansion bolts to fix the positioning plate, the positioning plate and the positioning groove are used together. The end of the positioning plate is an isosceles trapezoidal structure, so that the two adjacent truss-reinforced floor deck bodies can be precisely limited in the lateral direction from left to right and front to back during assembly, ensuring that the sides are aligned. At the same time, its own weight can prevent relative displacement in the vertical direction, thus improving the accuracy and efficiency of assembly.

[0015] 2. The construction section includes a horizontal slide rail assembly and a vertical slide rail assembly, as well as a movable lifting plate. The main body of the truss-reinforced floor deck has a slot on its side that mates with the lifting plate. During the assembly process, the synergistic effect of the vertical slide rail assembly and the horizontal slide rail assembly is used to realize the lifting, lateral movement and downward docking of the main body of the truss-reinforced floor deck, which simplifies the assembly process.

[0016] 3. The transverse slide assembly consists of slide body two and slide body three. The slider is driven to move by guide rod and lead screw respectively. The drive motor one drives the lead screw to rotate, which can control the transverse movement of slider two. Through the connection of the vertical slide assembly, slider one can also move laterally along the guide rod, thereby realizing the stable transverse movement of the vertical slide assembly.

[0017] 4. The vertical slide assembly drives the lead screw to rotate via a drive component, causing the lifting plates to move up and down. The movable connection design of the drive sleeve and drive rod allows adjustment of the distance between the two lifting plates according to the different widths of the truss-reinforced floor slab body, ensuring that the lifting plates can be accurately inserted into the slots. The bevel gear transmission structure ensures that the power of the drive motor can be smoothly transmitted to the lead screw, guaranteeing the stability and reliability of the lifting action.

[0018] 5. The connecting parts installed between slide body two and slide body three, including connecting plates, guide plates and other components, can effectively prevent the guide rod from displacing relative to the slider when slide body two is in a suspended state during the movement of slide body two, ensuring the overall structural stability of the transverse slide assembly, thereby ensuring the smooth movement of the truss floor deck body during the assembly process.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This invention has a simple structure and is easy to operate. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab proposed in this invention. Figure 2 This is a schematic diagram of the main structure of a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab proposed in this invention. Figure 3 This is an exploded structural diagram of the main body of a prefabricated ultrathin fine stone concrete truss-reinforced floor slab proposed in this invention. Figure 4 This is a schematic diagram of the overall structure of the construction section of a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab proposed in this invention. Figure 5 This is a partial structural diagram of the construction section of a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab proposed in this invention. Figure 6 This is a schematic diagram of the overall structure of the construction section of a prefabricated ultra-thin fine stone concrete truss-reinforced floor slab proposed in this invention. Figure 7 This is an enlarged view of point A.

[0021] In the diagram: 1. Installation beam; 2. Truss reinforcement floor deck body; 3. Positioning plate; 4. Connecting plate; 5. Positioning groove; 6. Mounting hole; 7. Slot; 8. Slider 1; 9. Slide body 1; 10. Guide rod; 11. Slide body 2; 12. Drive motor 1; 13. Drive sleeve; 14. Lead screw; 15. Slide body 3; 16. Bevel gear 1; 17. Transmission column; 18. Drive rod; 19. Bevel gear 2; 20. Vertical plate; 21. Drive motor 2; 22. Lead screw 1; 23. Lifting plate; 24. Slider 2; 25. Vertical plate; 26. Mounting groove; 27. Expansion bolt; 28. Guide cylinder; 29. ​​Guide plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0025] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0026] In addition, the term "multiple" should mean two or more.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Example 1 A type of prefabricated ultra-thin fine aggregate concrete truss-reinforced floor deck, such as Figures 1 to 7 As shown, the system includes a truss-reinforced floor deck body 2 installed on the installation beam 1. The two truss-reinforced floor deck bodies 2 are positioned together by an assembly. The truss-reinforced floor deck bodies 2 are constructed using a construction unit. The assembly includes positioning grooves 5 and installation grooves 26 respectively opened at both ends of the truss-reinforced floor deck body 2. A positioning plate 3 is fixed to the installation groove 26 by a fixing mechanism. The fixing mechanism includes an installation hole 6 and an expansion bolt 27. The expansion bolt 27 is installed inside the installation groove 26. The positioning plate 3 has an installation hole 6 that cooperates with the expansion bolt 27. The positioning plate 3 and the positioning groove 5 cooperate with each other. The end of the positioning plate 3 has an isosceles trapezoidal structure. In this embodiment, during the production of the truss-reinforced floor deck 2, the truss reinforcement is first prefabricated according to the design requirements and fixed in a special mold. Then, the prepared ultra-thin fine stone concrete is poured, compacted by vibration, and the surface is smoothed before curing. After the concrete reaches the specified strength, it is demolded. When the truss-reinforced floor deck 2 needs to be installed on the installation beam 1, the truss-reinforced floor deck 2 is first hoisted onto the installation beam 1 using hoisting equipment for laying. When it is necessary to assemble two adjacent truss-reinforced floor deck 2s, expansion bolts 27 are first installed on the installation groove 26. The installation holes 6 on the positioning plate 3 are inserted into the expansion bolts 27, and the nuts of the expansion bolts 27 are used to lock the positioning plate 3, thereby ensuring the stability of the positioning plate 3 relative to the installation groove 26. When assembling two adjacent truss-reinforced floor deck slabs 2, the positioning plate 3 on one of the truss-reinforced floor deck slabs 2 is moved to directly above the positioning groove 5 of the adjacent truss-reinforced floor deck slab 2, and then slowly lowered until the positioning plate 3 and the positioning groove 5 fit together. The positioning plate 3 and the positioning groove 5 are used to position the two adjacent truss-reinforced floor deck slabs 2 in the lateral direction, thereby ensuring that the sides of the two adjacent truss-reinforced floor deck slabs 2 remain aligned. The end of the positioning plate 3 is an isosceles trapezoidal structure, so the two truss-reinforced floor deck slabs 2 can be limited in the lateral direction, whether in the left-right or front-back direction. At the same time, since the truss-reinforced floor deck slabs 2 have a certain weight, the two truss-reinforced floor deck slabs 2 will not easily displace relative to each other due to vibration in the vertical direction.

[0029] The construction unit includes a horizontal slide rail assembly, a vertical slide rail assembly is slidably connected to the horizontal slide rail assembly, and a lifting plate 23 is slidably connected to both vertical slide rail assemblies. The side of the truss reinforcement floor deck slab body 2 is provided with a slot 7 that cooperates with the lifting plate 23. After the truss-reinforced floor deck slab body 2 is hoisted onto the installation beam 1 using hoisting equipment, the construction team assembles adjacent truss-reinforced floor deck slab bodies 2. First, the vertical sliding assembly is used to move one end of the lifting plate 23 to a position aligned with the side of the slot 7. Then, the lifting plate 23 is inserted into the slot 7. Next, the vertical sliding assembly drives the lifting plate 23 upward, raising the truss-reinforced floor deck slab body 2 until the height of the positioning plate 3 on the truss-reinforced floor deck slab body 2 is higher than that of the adjacent truss-reinforced floor deck slab body 1. The height of the positioning groove 5 on the truss reinforcement floor deck body 2 is determined by the horizontal sliding assembly. Then, the truss reinforcement floor deck body 2 is driven to move laterally until the positioning plate 3 on the truss reinforcement floor deck body 2 moves to the positioning groove 5 on the adjacent truss reinforcement floor deck body 2. Finally, the vertical sliding assembly is used to drive the truss reinforcement floor deck body 2 to move downward so that the positioning plate 3 on the truss reinforcement floor deck body 2 and the positioning groove 5 on the adjacent truss reinforcement floor deck body 2 are connected, thereby realizing the assembly between two adjacent truss reinforcement floor deck body 2.

[0030] The transverse slide rail assembly includes a slide rail body 2 11 and a slide rail body 3 15. Slider 1 8 and slider 2 24 are slidably connected to the inner walls of slide rail body 2 11 and slide rail body 3 15, respectively. Guide rods 10 are fixed to the inner walls on both sides of slide rail body 2 11 by screws, and guide rods 10 and slider 1 8 are slidably connected. Lead screw 14 is rotatably connected between the inner walls on both sides of slide rail body 3 15. Drive motor 12 is fixed to the outer wall on one side of slide rail body 3 15 by bolts, and the output end of drive motor 12 is connected to one end of lead screw 14 through a coupling. A nut that works with lead screw 14 is installed on the side of slider 2 24. The vertical slide rail assembly is installed on the top of slider 1 8 and slider 2 24. When the drive motor 12 drives the lead screw 14 to rotate, the lead screw 14 guides the movement path of the slider 24, causing the slider 24 to move laterally along the inner wall of the slide body 3 15. Since the vertical slide assembly is installed on the top of the slider 1 8 and the slider 24, the connection of the vertical slide assembly allows the slider 1 8 to move laterally along the guide rod 10, thereby allowing the vertical slide assembly to move laterally under the drive of the slider 1 8 and the slider 24.

[0031] The vertical slide assembly includes a slide body 9 and a lead screw 22. The two slide bodies 9 are respectively bolted to the top outer wall of slider 8 and slider 24. The lead screw 22 is rotatably connected between the top and bottom of the slide body 9, and a nut 1 that mates with the lead screw 22 is installed on the lifting plate 23. The two lead screws 22 are driven by a driving component, which includes a driving sleeve 13, a driving rod 18, and a vertical plate 25. The two vertical plates 25 are respectively fixed to the top outer walls of the two slide bodies 9, and the driving sleeve 13 is rotatably connected to the inner wall of a through hole on the surface of one of the vertical plates 25. 18 is rotatably connected to the inner wall of a through hole on the surface of another vertical plate 25, and the outer circumference of the drive rod 18 is integrally formed with a transmission column 17, and the transmission column 17, the drive rod 18 and the drive sleeve 13 are slidably connected. A vertical plate 20 is welded to the top of one of the slide body 9, and a drive motor 21 is fixed to one side of the outer wall of the vertical plate 20 by bolts. The output end of the drive motor 21 is connected to one end of the drive rod 18 by a coupling. The outer circumference of the drive rod 18 and the outer circumference of the drive sleeve 13 are both connected to a bevel gear 19 by a key, and the top of the lead screw 22 is connected to a bevel gear 16 that meshes with the bevel gear 19 by a key. By setting the drive sleeve 13 and drive rod 18 to be slidably connected, the distance between the two lifting plates 23 can be adjusted. When it is necessary to assemble the truss-reinforced floor deck body 2 of different widths, the distance between the two lifting plates 23 is adjusted to ensure that the lifting plates 23 can be inserted into the slots 7 opened on the side of the truss-reinforced floor deck body 2. The meshing between bevel gear 2 19 and bevel gear 16 enables the drive motor 21 to indirectly drive the lead screw 22 to rotate, thereby causing the lifting plates 23 to move up or down along the inner wall of the slide body 9. The transmission column 17 prevents relative rotation between the drive sleeve 13 and drive rod 18, thereby ensuring that the power can be smoothly transmitted to the two sets of lead screws 22.

[0032] A connector is installed between the second slide body 11 and the third slide body 15. The connector includes a connecting plate 4, a guide plate 29 and a guide cylinder 28. The connecting plate 4 is fixed to the side wall of the third slide body 15 by bolts. The guide cylinder 28 is welded to one end of the connecting plate 4. The guide plate 29 is fixed to the side wall of the second slide body 11 by bolts, and one end of the guide plate 29 and one end of the guide cylinder 28 are slidably connected. By providing a connector, the slide body 2 11 and the slide body 3 15 can be connected, thereby preventing the guide rod 10 from shifting relative to the slider 1 8 when the slide body 2 11 is in a suspended state during movement.

[0033] Working principle: During the assembly process, the truss-reinforced floor deck slab body 2 is first hoisted onto the installation beam 1 using hoisting equipment for laying. After the two lifting plates 23 are adjusted to a suitable height, they are then inserted into the slots 7 on the side of the floor deck slab body 2. Next, the lifting plates 23 are driven to move upward, raising the floor deck slab body 2 to a suitable height. Then, the floor deck slab body 2 is moved laterally by the drive motor 12 and other components via the transverse slide assembly until the positioning plate 3 on it moves directly above the positioning slot 5 of the adjacent floor deck slab body 2. Finally, the floor deck slab body 2 is driven downward again by the vertical slide assembly, allowing the positioning plate 3 to align with the positioning slot 5.

[0034] Example 2 A construction method for prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slabs includes the following steps: S1: Hoist the truss reinforcement floor deck 2 to the top of the installation beam 1, and slowly lower it so that it falls accurately on the marked position of the installation beam 1. Make preliminary adjustments to the position and orientation of the floor deck 2 to ensure that it is consistent with the position of the measurement and layout line. S2: Drill holes in the mounting groove 26 of one of the truss reinforcement floor deck 2 according to the design requirements using tools such as an electric drill, and then install the expansion bolts 27 into the holes to ensure that the expansion bolts are installed firmly. S3: Align the mounting hole 6 on the positioning plate 3 with the expansion bolt 27, insert the positioning plate 3, and use the nut to lock the positioning plate 3 into the mounting groove 26; S4: Use the vertical slide assembly to move one end of the lifting plate 23 to a position where it fits against the side of the slot 7 on the side of the truss reinforcement floor deck 2, and then insert the lifting plate 23 into the slot 7. S5: Start the drive device of the vertical slide assembly, drive the lifting plate 23 to move upward, the lifting plate 23 lifts the truss reinforcement floor deck body 2 until the height of the positioning plate 3 on the floor deck body is higher than the height of the positioning groove 5 on the adjacent truss reinforcement floor deck body 2. S6: Start the drive device of the transverse slide assembly. Through the coordinated action of slide body 2 11, slide body 3 15, slider 1 8, slider 2 24, etc., drive the truss reinforcement floor deck body 2 to move laterally until the positioning plate 3 on the floor deck body moves to directly above the positioning groove 5 on the adjacent truss reinforcement floor deck body 2. S7: The vertical slide assembly is used again to drive the truss reinforcement floor deck body 2 to move down, so that the positioning plate 3 on the floor deck body slowly descends until the positioning plate 3 and the adjacent positioning groove 5 are in contact with each other. The positioning plate 3 and the positioning groove 5 are used to position the two adjacent truss reinforcement floor deck bodies 2 in the lateral direction, so as to ensure that the sides of the two adjacent truss reinforcement floor deck bodies 2 remain aligned. S8: Follow the above steps to complete the assembly and positioning work between other adjacent truss reinforcement floor deck bodies 2, ensuring that all floor deck bodies form an integral and stable structure.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor deck, comprising a truss-reinforced floor deck body (2) installed on an installation beam (1), characterized in that, The two truss-reinforced floor deck bodies (2) are positioned by an assembly. The truss-reinforced floor deck bodies (2) are constructed using a construction unit. The assembly includes positioning grooves (5) and installation grooves (26) respectively opened at both ends of the truss-reinforced floor deck bodies (2). A positioning plate (3) is fixed on the installation groove (26) by a fixing mechanism. The end of the positioning plate (3) is an isosceles trapezoidal structure. The fixing mechanism includes an installation hole (6) and an expansion bolt (27). The expansion bolt (27) is installed inside the installation groove (26). The positioning plate (3) is provided with an installation hole (6) that cooperates with the expansion bolt (27).

2. The prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 1, characterized in that, The construction unit includes a horizontal slide assembly, on which a vertical slide assembly is movably connected. Both vertical slide assemblies are movably connected to a lifting plate (23). The side of the truss reinforcement floor deck body (2) is provided with a slot (7) that cooperates with the lifting plate (23).

3. The prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 2, characterized in that, The transverse slide assembly includes slide body two (11) and slide body three (15), with slide block one (8) and slide block two (24) movably connected to the inner walls of slide body two (11) and slide body three (15), respectively.

4. The prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 3, characterized in that, Guide rods (10) are fixed on the inner walls of both sides of the slide body two (11), and the guide rods (10) and the slider one (8) are movably connected. A lead screw (14) is movably connected between the inner walls of both sides of the slide body three (15).

5. A prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 4, characterized in that, The outer wall of one side of the slide body three (15) is fixed with a drive motor one (12), and the output end of the drive motor one (12) is connected to one end of the lead screw (14) through a coupling. The side of the slider two (24) is equipped with a nut that works with the lead screw (14). The vertical slide assembly is installed on the top of slider one (8) and slider two (24).

6. A prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 2, characterized in that, The vertical slide assembly includes a slide body 1 (9) and a lead screw 1 (22). The two slide bodies 1 (9) are fixed to the top outer wall of the slider 1 (8) and the top outer wall of the slider 2 (24) respectively. The lead screw 1 (22) is movably connected between the top and bottom of the slide body 1 (9). A lead nut 1 that works with the lead screw 1 (22) is installed on the lifting plate (23). The two lead screws 1 (22) are driven by a driving component.

7. A prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 6, characterized in that, The driving component includes a driving sleeve (13), a driving rod (18), and a vertical plate (25). The two vertical plates (25) are respectively fixed to the top outer wall of the two slide body 1 (9). The driving sleeve (13) is movably connected to the inner wall of the through hole opened on the surface of one of the vertical plates (25). The driving rod (18) is movably connected to the inner wall of the through hole opened on the surface of the other vertical plate (25). The outer circumference of the driving rod (18) is integrally formed with a transmission column (17) that is movably connected to the driving sleeve (13).

8. A prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 7, characterized in that, One of the slide body 1 (9) has a vertical plate (20) welded to the top. A drive motor 2 (21) is fixed to the outer wall of one side of the vertical plate (20). The output end of the drive motor 2 (21) is connected to one end of the drive rod (18) through a coupling. The outer circumference of the drive rod (18) and the outer circumference of the drive sleeve (13) are both connected to bevel gear 2 (19) by a key. The top of the lead screw 1 (22) is connected to bevel gear 1 (16) by a key. Bevel gear 1 (16) and bevel gear 2 (19) mesh with each other.

9. A prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slab according to claim 3, characterized in that, The connecting components installed between the second (11) slide body and the third (15) slide body include a connecting plate (4), a guide plate (29) and a guide cylinder (28). The connecting plate (4) is fixed to the side wall of the third (15) slide body, the guide cylinder (28) is welded to one end of the connecting plate (4), the guide plate (29) is fixed to the side wall of the second (11) slide body, and one end of the guide plate (29) and one end of the guide cylinder (28) are movably connected.

10. A construction method for prefabricated ultra-thin fine-aggregate concrete truss-reinforced floor slabs according to any one of claims 1-9, characterized in that, Includes the following steps: S1: Hoist the truss reinforcement floor deck body (2) above the installation beam (1), slowly lower it so that it falls accurately on the marked position of the installation beam (1), and initially adjust the position and direction of the floor deck body to ensure that it is consistent with the position of the measurement and layout line; S2: Drill holes in the mounting groove (26) of one of the truss reinforcement floor deck bodies (2) according to the design requirements using an electric drill, and then install the expansion bolts (27) into the holes to ensure that the expansion bolts are installed firmly; S3: Align the mounting holes (6) on the positioning plate (3) with the expansion bolts (27), insert the positioning plate (3), and use nuts to lock the positioning plate (3) into the mounting groove (26); S4: Use the vertical slide assembly to move one end of the lifting plate (23) to a position where it fits against the side of the slot (7) on the side of the truss reinforcement floor deck body (2), and then insert the lifting plate (23) into the slot (7); S5: Start the drive device of the vertical slide assembly, drive the lifting plate (23) to move upward, the lifting plate (23) lifts the truss reinforcement floor deck body (2) until the height of the positioning plate (3) on the floor deck body is higher than the height of the positioning groove (5) on the adjacent truss reinforcement floor deck body (2); S6: Start the drive device of the transverse slide assembly. Through the coordinated action of slide body 2 (11), slide body 3 (15), slider 1 (8), and slider 2 (24), drive the truss reinforcement floor deck body (2) to move laterally until the positioning plate (3) on the floor deck body moves to the position groove (5) on the adjacent truss reinforcement floor deck body (2). S7: Use the vertical slide assembly again to drive the truss reinforcement floor deck body (2) to move down, so that the positioning plate (3) on the floor deck body slowly descends until the positioning plate (3) and the adjacent positioning groove (5) fit together. Use the positioning plate (3) and the positioning groove (5) to position the two adjacent truss reinforcement floor deck bodies (2) in the lateral direction, so as to ensure that the sides of the two adjacent truss reinforcement floor deck bodies (2) remain aligned. S8: Follow the above steps to complete the assembly and positioning work between other adjacent truss reinforcement floor deck bodies (2) to ensure that all floor deck bodies form an integral and stable structure.

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