Precast steel pipe truss prestressed concrete composite slab support system

Abstract

This application relates to a prefabricated steel pipe truss prestressed concrete composite slab support system, belonging to the field of building construction. The device includes a concrete composite slab positioned above a foundation. The concrete composite slab includes a support frame, support bars, and corner bars. Post-cast concrete is poured between the support frame, support bars, and corner bars. A triangular frame assembly is installed on the top of the concrete composite slab. This application enables the placement of a perforated round rod within the cavity of the support head. After two arc-shaped limiting pieces are combined and attached to the surface of the support frame, anchor bolts are used to fix the position of the perforated round rod. After hoisting and assembly, the arc-shaped iron provides fixed-point support when the subsequent cover bars are fixedly connected to the support frame, thereby improving installation accuracy and achieving green construction. It is suitable for large-scale prefabricated buildings and has significant economic and environmental benefits.

Description

Technical Field

[0001] This application relates to the field of building construction, and in particular to prefabricated steel pipe truss prestressed concrete composite slab support systems. Background Technology

[0002] This invention relates to a construction method and supporting system for prefabricated steel pipe truss prestressed concrete composite slabs (PKIII type slabs). This method is suitable for prefabricated structural construction of large factories, public buildings, and residences. Traditional truss composite slabs suffer from problems such as heavy component weight, large slab thickness, complex support systems, and low construction efficiency due to four-sided reinforcement. Existing technologies also limit layout flexibility due to the modular design of composite slabs. Therefore, this invention provides a construction method and system for prefabricated composite slabs that offers high construction efficiency and flexible layout. The PKIII type slabs of this component feature a design without reinforcing bars on both sides, retaining only the supporting reinforcement. The main keel uses a double-support frame, combined with end-connecting reinforcement in the post-cast slab area, improving installation accuracy. Simultaneously, independent triangular frames and disc-lock steel pipe frames optimize the overall support system, thereby achieving green construction. This method is suitable for large prefabricated buildings and offers significant economic and environmental benefits. Utility Model Content

[0003] To address the existing technical problems, this application provides a prefabricated steel pipe truss prestressed concrete composite slab support system.

[0004] The prefabricated steel pipe truss prestressed concrete composite slab support system provided in this application adopts the following technical solution: The prefabricated steel pipe truss prestressed concrete composite slab support system includes a concrete composite slab set above the foundation. The concrete composite slab includes a support frame, and the concrete composite slab also includes support bars and corner bars. Post-cast concrete is poured together between the support frame, support bars, and corner bars. A triangular frame assembly is set on the top of the concrete composite slab. The triangular frame assembly includes two support heads welded to the top of the corner bars. The inner cavities of the two support heads are rotatably connected to perforated round rods. Arc-shaped limiting members are welded to the opposite ends of the two perforated round rods. Arc-shaped irons are welded to the surfaces of the two arc-shaped limiting members. Limiting plates are welded to the surfaces of the two arc-shaped limiting members. Positioning elements are sleeved on the surfaces of the two limiting plates.

[0005] By adopting the above technical solution, the perforated round rod is placed in the inner cavity of the support head. After the two arc-shaped limiting parts are combined and attached to the surface of the support frame, the position of the perforated round rod is fixed with anchor bolts. Since there are only two support frames, it is not necessary to spend a long time finding the hoisting point during subsequent hoisting. After hoisting and assembly, the arc-shaped iron can provide fixed-point support when the subsequent cover reinforcement is fixedly connected to the support frame, thereby improving the installation accuracy. This can achieve green construction, is suitable for large prefabricated buildings, and has significant economic and environmental benefits.

[0006] Preferably, the inner cavity of the support head and the perforated round rod are connected by a common threaded anchor bolt, and the inner cavity of the anchor bolt is slidably connected to a limit bolt.

[0007] By adopting the above technical solution and setting the limiting bolt, the anchor bolt can achieve a further limiting effect after being fixedly connected to the perforated round rod and the support head, making the connection between the anchor bolt and the support head and the perforated round rod more secure.

[0008] Preferably, the arc-shaped iron is located at the top of the surface of the arc-shaped limiting member, and the limiting piece is located at the bottom of the surface of the arc-shaped limiting member.

[0009] Preferably, a disc-lock steel pipe frame is provided on the top of the foundation, a supporting steel pipe is installed on the top of the disc-lock steel pipe frame, and wooden joists are laid on the top of the supporting steel pipe.

[0010] Preferably, a template is laid on top of the wooden frame, and the post-cast concrete is located on top of the template.

[0011] Preferably, the surface of the support frame is fixedly connected with a cover rib by binding wire, and the surface of the cover rib is located in the inner cavity of the arc-shaped iron.

[0012] Preferably, a limiting groove is formed on the opposite side of each of the two limiting pieces, and two limiting strips are welded into the inner cavity of the positioning member.

[0013] Preferably, the surface of the limiting strip is slidably connected to the inner cavity of the limiting groove.

[0014] By adopting the above technical solution and setting the limiting strip, the connection between the positioning component and the limiting piece can be made tighter after they are connected and fixed, and the arc-shaped limiting component can better support the cover rib.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. This utility model places the perforated round rod in the inner cavity of the support head. After the two arc-shaped limiting parts are combined and attached to the surface of the support frame, the position of the perforated round rod is fixed by anchor bolts. Since there are only two support frames, it is not necessary to spend a long time finding the hoisting point during subsequent hoisting. After hoisting and assembly, the arc-shaped iron can provide fixed-point support when the subsequent cover reinforcement is fixedly connected to the support frame, thereby improving the installation accuracy and realizing green construction. It is suitable for large prefabricated buildings and has significant economic and environmental benefits.

[0016] 2. By setting a limiting bolt, this utility model can further limit the anchor bolt after it is fixedly connected to the perforated round rod and the support head, making the connection between the anchor bolt and the support head and the perforated round rod more secure.

[0017] 3. By setting a limiting strip, this utility model can make the connection between the positioning component and the limiting piece more tight after they are connected and fixed, and enable the arc-shaped limiting component to better support the cover rib. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a front view schematic diagram of the structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the main view of the structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the structural concrete composite slab of this utility model.

[0022] Figure 5 This is a schematic diagram of the triangular frame assembly of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Foundation; 2. Concrete composite slab; 21. Support frame; 22. Support reinforcement; 23. Corner reinforcement; 24. Post-cast concrete; 3. Triangular frame assembly; 31. Support head; 32. Perforated round rod; 33. Arc-shaped limiting component; 34. Arc-shaped iron; 35. Limiting plate; 36. Positioning component; 37. Anchor bolt; 38. Limiting bolt; 4. Disc-type steel pipe frame; 5. Supporting steel pipe; 6. Timber joists; 7. Formwork; 8. Cover reinforcement; 9. Limiting strip. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0025] Example 1: Combination Figure 1 , Figure 3 and Figure 4This application discloses a prefabricated steel pipe truss prestressed concrete composite slab support system, including a concrete composite slab 2 disposed above a foundation 1. The concrete composite slab 2 includes a support frame 21, and also includes support bars 22 and corner bars 23. Post-cast concrete 24 is poured between the support frame 21, support bars 22, and corner bars 23. A triangular frame assembly 3 is disposed on the top of the concrete composite slab 2. The triangular frame assembly 3 includes two support heads 31 welded to the top of the corner bars 23. The inner cavities of the two support heads 31 are rotatably connected to perforated round rods 32. An anchor bolt 37 is threadedly connected between the inner cavities of the support heads 31 and the perforated round rods 32. A limit bolt 38 is slidably connected to the inner cavity of the anchor bolt 37, thereby limiting the movement of the bolt. The setting of bolt 38 can further limit the anchor bolt 37 after it is fixedly connected to the perforated round rod 32 and the support head 31, making the connection between the anchor bolt 37, the support head 31 and the perforated round rod 32 more secure. The arc-shaped iron 34 is located at the top of the surface of the arc-shaped limiting member 33, and the limiting piece 35 is located at the bottom of the surface of the arc-shaped limiting member 33. The top of the base 1 is provided with a disc-lock steel pipe frame 4, the top of the disc-lock steel pipe frame 4 is equipped with a supporting steel pipe 5, the top of the supporting steel pipe 5 is covered with a wooden joist 6, the top of the wooden joist 6 is covered with a template 7, the post-poured concrete 24 is located on the top of the template 7, and the surface of the support frame 21 is fixedly connected with a cover bar 8 by binding wire. The surface of the cover bar 8 is located in the inner cavity of the arc-shaped iron 34.

[0026] Example 2: Combination Figure 2 and Figure 5 Two perforated round rods 32 are each welded with an arc-shaped limiting member 33 at their opposite ends. Arc-shaped iron 34 is welded to the surface of each of the two arc-shaped limiting members 33. A limiting piece 35 is welded to the surface of each of the two arc-shaped limiting members 33. A positioning member 36 is fitted onto the surface of each of the two limiting pieces 35. A limiting groove is opened on the opposite side of each of the two limiting pieces 35. Two limiting strips 9 are welded to the inner cavity of the positioning member 36. The surface of the limiting strips 9 is slidably connected to the inner cavity of the limiting groove. By setting the limiting strips 9, the positioning member 36 and the limiting piece 35 can be connected and fixed, making the connection between the positioning member 36 and the limiting piece 35 tighter, and enabling the arc-shaped limiting member 33 to better support the cover rib 8.

[0027] Working principle: When using this utility model, the user pours the support frame 21, support rib 22, and corner rib 23 together with the post-cast concrete 24. Then, the perforated round rod 32 is placed in the inner cavity of the support head 31. After the two arc-shaped limiting pieces 33 are combined and attached to the surface of the support frame 21, the position of the perforated round rod 32 is fixed using anchor bolts 37. Since there are only two support frames 21, it is not necessary to spend a long time finding the hoisting point during subsequent hoisting. After hoisting and assembly, the arc-shaped iron 34 can provide fixed-point support when the subsequent cover rib 8 is fixedly connected to the support frame 21, thereby improving the installation accuracy and realizing green construction. It is suitable for large prefabricated buildings and has significant economic and environmental benefits.

[0028] In summary, this prefabricated steel pipe truss prestressed concrete composite slab support system, by placing the perforated round rod 32 into the inner cavity of the support head 31, and after the two arc-shaped limiting pieces 33 are combined and attached to the surface of the support frame 21, uses anchor bolts 37 to fix the position of the perforated round rod 32. Since there are only two support frames 21, it is not necessary to spend a long time finding the hoisting point during subsequent hoisting. After hoisting and assembly, the arc-shaped iron 34 can provide fixed-point support when the subsequent cover reinforcement 8 is fixedly connected to the support frame 21, thereby improving the installation accuracy and realizing green construction. It is suitable for large prefabricated buildings and has significant economic and environmental benefits.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated steel pipe truss prestressed concrete composite slab support system, characterized in that: The concrete composite slab (2) is set above the foundation (1). The concrete composite slab (2) includes a support frame (21), and the concrete composite slab (2) also includes support bars (22) and corner bars (23). Post-cast concrete (24) is poured between the support frame (21), support bars (22) and corner bars (23). A triangular frame assembly (3) is set on the top of the concrete composite slab (2). The triangular frame assembly (3) includes two support heads (31) welded to the top of the corner bars (23). The inner cavity of the two support heads (31) is rotatably connected to a perforated round rod (32). An arc-shaped limiting piece (33) is welded to one end of each of the two perforated round rods (32). An arc-shaped iron (34) is welded to the surface of each of the two arc-shaped limiting pieces (33). A limiting piece (35) is welded to the surface of each of the two limiting pieces (35). A positioning piece (36) is sleeved on the surface of each of the two limiting pieces (35).

2. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 1, characterized in that: An anchor bolt (37) is threadedly connected between the inner cavity of the support head (31) and the perforated round rod (32), and a limit bolt (38) is slidably connected to the inner cavity of the anchor bolt (37).

3. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 2, characterized in that: The arc-shaped iron (34) is located at the top of the surface of the arc-shaped limiting member (33), and the limiting piece (35) is located at the bottom of the surface of the arc-shaped limiting member (33).

4. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 3, characterized in that: The base (1) is provided with a disc-lock steel pipe frame (4) on top, and a supporting steel pipe (5) is installed on the top of the disc-lock steel pipe frame (4). Wooden joists (6) are laid on the top of the supporting steel pipe (5).

5. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 4, characterized in that: A template (7) is laid on top of the wooden frame (6), and the post-cast concrete (24) is located on top of the template (7).

6. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 5, characterized in that: The surface of the support frame (21) is fixedly connected to the cover rib (8) by binding wire, and the surface of the cover rib (8) is located in the inner cavity of the arc-shaped iron (34).

7. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 6, characterized in that: Each of the two limiting pieces (35) has a limiting groove on its opposite side, and the inner cavity of the positioning piece (36) is welded with two limiting strips (9).

8. The prefabricated steel pipe truss prestressed concrete composite slab support system according to claim 7, characterized in that: The surface of the limiting strip (9) is slidably connected to the inner cavity of the limiting groove.

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