Steel pipe truss laminated slab close-packed mounting structure

Abstract

The utility model discloses a steel pipe truss laminated slab close -joint installation structure, including two laminated boards, the laminated board is made of multiple truss subassembly pouring concrete, and both sides of laminated board are all set to be inclined, still include tension component, it is located between two laminated boards, when splicing, two laminated boards all are set to be right trapezoid shape, and its splicing forms right V type groove, and through tension component to two laminated boards is mutually pulled and connects and improves the connectivity. The utility model discloses through setting as inclined both sides of laminated board, makes two board splicing and forms right V type groove, and the mutually pulling and connecting of tension component of cooperation setting to both sides laminated board, has effectively strengthened the connection intensity and overall stability of splicing, prevents the laminated board displacement or the fault platform when pouring concrete because of the reaction force, thereby has guaranteed the construction flatness, simultaneously, through setting up sealed component filling right V type groove, has realized the effective sealing of splicing.

Description

Technical Field

[0001] This utility model relates to the field of composite slab construction technology, specifically to a close-fitting installation structure for steel pipe truss composite slabs. Background Technology

[0002] Steel pipe truss composite slabs are an evolution of reinforced concrete composite slabs. They are a combination of precast (factory-produced) and cast-in-place (on-site pouring) concrete slabs. The structural features include a triangular steel truss as the supporting structure, with the top chord reinforcement replaced by steel pipes and grouted to form a spatial load-bearing system. The base slab is made of prestressed concrete, typically 35-40 mm thick, facilitating hoisting and transportation. It offers advantages such as fast construction speed, high efficiency, controllable quality, strong load-bearing capacity, and high rigidity.

[0003] The shortcomings of existing technologies are as follows: the joints of commonly available steel pipe truss composite slabs are often inverted V-shaped, and when splicing two steel pipe truss composite slabs, the joints need to be sealed to reduce grout leakage during pouring. Furthermore, during pouring, the poured concrete exerts a reaction force on the composite slabs on both sides, which can easily cause the composite slabs on both sides to move and shift, resulting in layers that affect the flatness during construction. Utility Model Content

[0004] The purpose of this utility model is to provide a close-fitting installation structure for steel pipe truss composite plates to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel pipe truss composite plate close-fitting installation structure, comprising two composite plates, wherein the composite plates are made of multiple sets of truss components cast in concrete, and both sides of the composite plates are inclined; it also includes a tension component, which is disposed between the two composite plates; during splicing, both composite plates are arranged in a trapezoidal shape, and a positive V-groove is formed at their splicing point, and the two composite plates are pulled together by the tension component to improve the connectivity; it also includes a sealing component, which is disposed in the positive V-groove between the two composite plates to form a seal at the splicing point.

[0006] As a further description of the above technical solution:

[0007] The truss assembly includes multiple web reinforcement bars, and the same crossbeam steel pipe is welded between multiple sets of web reinforcement bars, with adjacent web reinforcement bars arranged in a triangular pattern.

[0008] As a further description of the above technical solution:

[0009] The tension component includes tension bars welded to the steel pipes of two adjacent crossbeams.

[0010] As a further description of the above technical solution:

[0011] Both ends of the tension steel bar are provided with a bent portion, which is tied to the corresponding crossbeam steel pipe by steel wire.

[0012] As a further description of the above technical solution:

[0013] The sealing assembly includes a support steel bar welded to a tensile steel bar, the bottom end of which is welded with an angle steel that is adapted to a positive V-groove.

[0014] As a further description of the above technical solution:

[0015] The top of the supporting steel bar is provided with a second bend, and the second bend is tied to the tension steel bar by steel wire.

[0016] The beneficial effects of the steel pipe truss composite plate close-fitting installation structure provided by this utility model in the above technical solution are as follows:

[0017] This invention, by setting the two sides of the composite slab to be inclined, forms a positive V-shaped groove when the two slabs are spliced. With the help of the set tension component, the two sides of the composite slab are pulled together, which effectively enhances the connection strength and overall stability of the splice, and prevents the composite slab from shifting or misaligning due to the reaction force during concrete pouring, thereby ensuring the flatness of the construction. At the same time, by setting the sealing component to fill the positive V-shaped groove, the splice is effectively sealed, which significantly reduces the leakage of grout during the concrete pouring process, improves the construction quality and efficiency. The device has a reasonable structure, is easy to install, and has good practicality.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0019] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0022] Figure 2 A partial structural schematic diagram provided for an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram showing the structural connection between the tension component and the sealing component provided in an embodiment of the present utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Composite slab; 2. V-groove; 3. Web reinforcement; 4. Crossbeam steel pipe; 5. Tension reinforcement; 6. Bending section one; 7. Supporting reinforcement; 8. Angle steel; 9. Bending section two. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] Please see Figure 1-3 This embodiment provides a close-fitting installation structure for a steel pipe truss composite slab 1, comprising two composite slabs 1, each slab 1 being made of multiple sets of truss components cast in concrete, with both sides of the composite slab 1 being inclined; it also includes a tension component disposed between the two composite slabs 1; during splicing, both composite slabs 1 are arranged in a trapezoidal shape, and a positive V-groove 2 is formed at their splicing point, and the tension component is used to pull the two composite slabs 1 together to improve connectivity. The composite slabs 1 are prefabricated in a factory, and their core structure is formed by casting multiple sets of pre-assembled truss components into concrete. The two sides of the composite slab 1 are made into a specific inclined shape, and this unique edge design is effective during on-site splicing and installation of the two slabs. The design ensures that the cross-section of each composite slab 1 presents a stable trapezoidal structure. When two slabs are aligned and brought close together, their inclined sides fit together, naturally forming an upward-opening, regular V-shaped groove 2 at the splice. The core function of the tension component is to apply a mutual tensioning force to both slabs. This active connection method greatly enhances the connection strength of the splice node and the overall stability of the entire slab system, effectively resisting external loads and construction disturbances. It also includes a sealing component, which is set in the V-shaped groove 2 between the two composite slabs 1 to form a seal at the splice. The function of the sealing component is to completely fill the groove space, thereby physically blocking the path of grout leakage and achieving a reliable seal at the splice joint.

[0028] In a further embodiment of this utility model, the truss assembly includes multiple web reinforcement bars 3, and the same crossbeam steel pipe 4 is welded between multiple sets of web reinforcement bars 3. Adjacent web reinforcement bars 3 are arranged in a triangular pattern. Multiple sets of web reinforcement bars 3 are firmly connected to the same crossbeam steel pipe 4 by welding, and adjacent web reinforcement bars 3 are arranged in a stable triangular shape. This triangular truss structure gives the composite plate 1 extremely high rigidity and load-bearing capacity. The tension assembly includes tension reinforcement bars 5 welded to two adjacent crossbeam steel pipes 4. Both ends of the tension reinforcement bars 5 are provided with bent portions 6. The bent portions 6 are tied to the corresponding crossbeam steel pipes 4 by steel wire. The tension reinforcement bars 5 are welded to two adjacent crossbeam steel pipes 4 belonging to two composite plates 1, thereby directly connecting the two. In order to optimize the stress and facilitate construction and fixing, the bent portions 6 at both ends of the tension reinforcement bars 5 are bent at a specific angle. These bent portions are tied with steel wire and further tightly connected to the corresponding crossbeam steel pipes 4, ensuring the reliability of the connection.

[0029] In a further embodiment of this utility model, the sealing component includes a supporting steel bar 7 welded to the tension steel bar 5. An angle steel 8 is welded to the bottom end of the supporting steel bar 7. The angle steel 8 is adapted to the positive V-groove 2. The angle steel 8 can be integral and welded to the bottom of multiple supporting steel bars 7, or it can be segmented and correspond one-to-one with the number of supporting steel bars 7. Multiple angle steels 8 set in the same positive V-groove 2 fit together to prevent interference between the supporting steel bar 7 and the tension steel bar 5 fixed above during the installation of the angle steel 8, thereby improving the ease of installation. The specific setting method can be selectively set according to the specific construction situation. The top end of the supporting steel bar 7 is provided with a second bend 9, and the second bend 9 is tied to the tension steel bar 5 by steel wire. The angle steel 8 extends along the V-groove, which plays the role of supporting and expanding the sealing surface. In order to enhance the stability of the top connection, the second bend 9 at the top end of the supporting steel bar 7 is bent at a specific angle and is auxiliaryly fixed to the tension steel bar 5 by steel wire tying, together forming a sealing system that is stable in the groove and effectively seals the gap.

[0030] Working principle: During operation, when the composite slab 1 to be installed is hoisted to a suitable installation position using a hoisting device, a positive V-shaped groove 2 is formed between two adjacent composite slabs 1. At this time, the tension steel bar 5 is welded to the crossbeam steel pipe 4 between the two adjacent composite slabs 1, and the bent parts 6 on both sides of the tension steel bar 5 are hooked onto the crossbeam steel bar for tension support and locked with steel wire. Then, the angle steel 8 is placed in the positive V-shaped groove 2, and the supporting steel bar 7 on the angle steel 8 is welded to the tension steel bar 5. Finally, the bent parts 9 of the supporting steel bar 7 are tied to the tension steel bar 5 with steel wire for further locking and fixing.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A close-fitting installation structure for a steel pipe truss composite slab (1), comprising two composite slabs (1), characterized in that: The composite slab (1) is made of concrete cast from multiple sets of truss components, and both sides of the composite slab (1) are inclined. It also includes a tension assembly disposed between the two laminated plates (1); During splicing, both composite plates (1) are set in a trapezoidal shape, and a positive V-groove (2) is formed at their splicing point. The two composite plates (1) are then pulled together by a tensioning component to improve connectivity. It also includes a sealing component, which is disposed in a positive V-groove (2) between the two composite plates (1) to form a joint seal.

2. The close-fitting installation structure of a steel pipe truss composite plate (1) according to claim 1, characterized in that, The truss assembly includes multiple web reinforcement bars (3), and the same crossbeam steel pipe (4) is welded between multiple sets of web reinforcement bars (3), and adjacent web reinforcement bars (3) are distributed in a triangular pattern.

3. The close-fitting installation structure of a steel pipe truss composite plate (1) according to claim 2, characterized in that, The tension component includes tension bars (5) welded to the steel pipes (4) of two adjacent crossbeams.

4. The densely installed structure of a steel pipe truss composite slab (1) according to claim 3, characterized by Both ends of the tensile steel bar (5) are provided with a bending part (6), and the bending part (6) is tied to the corresponding crossbeam steel pipe (4) by steel wire.

5. The densely installed structure of a steel pipe truss composite slab (1) according to claim 3, characterized by The sealing assembly includes a support steel bar (7) welded to a tension steel bar (5), and an angle steel (8) welded to the bottom end of the support steel bar (7), the angle steel (8) being adapted to a positive V-groove (2).

6. The close-fitting installation structure of a steel pipe truss composite plate (1) according to claim 5, characterized in that, The top end of the supporting steel bar (7) is provided with a second bending part (9), and the second bending part (9) is tied to the tension steel bar (5) by steel wire.

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