Rebar connecting positioning truss device and construction method thereof

Abstract

This invention relates to the field of modular design and construction technology in nuclear engineering civil engineering, and discloses a rebar connection and positioning truss device and its construction method. The rebar connection and positioning truss device includes: a rebar body; a truss positioning structure with a plurality of positioning holes along a first direction, each positioning hole being adapted to connect to one axial end of the rebar body; a nut, coaxially arranged with the positioning holes, adapted to connect and position the rebar body on the truss positioning structure; and a limiting plate, spaced apart from the truss positioning structure along the first direction; the limiting plate has a plurality of limiting holes along the first direction for positioning and / or limiting the rebar body. The rebar connection and positioning truss device provided by this invention simultaneously achieves rapid connection between the truss positioning structure and the rebar body, as well as precise positioning of the rebar body, ensuring the reliability of load transfer between the truss positioning structure and the rebar body, and effectively improving construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of modular design and construction technology for nuclear engineering civil engineering, specifically to a steel reinforcement connection and positioning truss device and its construction method. Background Technology

[0002] In nuclear engineering, the diameter of the reinforcing bars in the walls and floors is generally between 25 and 40 mm, arranged at equal intervals of 200 mm. Reinforcing steel work is a crucial component of nuclear engineering civil construction, accounting for a significant portion of the construction process and directly impacting the project's progress, quality, safety, cost, and safe and civilized construction practices. However, in the nuclear engineering field, reinforcing steel work still primarily relies on on-site tying operations. During tying, it is difficult to accurately position and connect the reinforcing bars, resulting in low construction efficiency and long construction cycles, which can no longer meet the demands of the rapidly developing nuclear engineering industry.

[0003] In the civil engineering field, with the vigorous promotion of industrialized construction technology, the construction of steel mesh and steel cages has gradually increased. However, during concrete pouring, these steel bars may deform and deviate, leading to improper connection. Therefore, accurate positioning of the steel bars remains a challenge. Although a few positioning devices have emerged that can solve the positioning problem to some extent, these devices still need to be completely removed after completing their positioning function. The steel bars also still need to be connected separately using sleeve connections or other methods, and the stress performance of the steel bars cannot be guaranteed. Therefore, these devices cannot simultaneously solve the problems of rapid connection and positioning of steel bars.

[0004] In order to accelerate the industrialization of civil engineering in nuclear engineering, solve the problems of rebar connection and positioning, ensure the stress performance of rebar, improve construction efficiency, and reduce on-site rebar tying work, it is necessary to invent a rebar connection and positioning device and its construction method. Summary of the Invention

[0005] In view of this, the present invention provides a rebar connection and positioning truss device and its construction method to solve the problem that existing nuclear engineering rebar engineering cannot simultaneously achieve precise rebar positioning and rapid connection, and cannot guarantee the stress performance of the rebar.

[0006] In a first aspect, the present invention provides a steel bar connection and positioning truss device, comprising:

[0007] The steel reinforcement itself;

[0008] A truss positioning structure has several positioning holes along a first direction, each positioning hole being suitable for connection to one axial end of the steel bar body;

[0009] The nut is coaxially set with the positioning hole. The nut is set on the side of the truss positioning structure away from the steel bar body along the first direction. The nut is suitable for threaded connection with one end of the steel bar body in the axial direction so as to accurately position the steel bar body and quickly connect it to the truss positioning structure.

[0010] The limiting plate is arranged at intervals relative to the truss positioning structure along the first direction; the limiting plate is provided with a number of limiting holes along the first direction, each limiting hole being adapted to connect with the other end of the reinforcing bar body in the axial direction, so as to position and / or limit the reinforcing bar body, and so that the limiting plate, the truss positioning structure and the reinforcing bar body are connected together to form an integral structure.

[0011] The rebar connection and positioning truss device provided by this invention positions the rebar body by opening positioning holes in the truss positioning structure; the rebar body is fixed to the truss positioning structure by nuts, which not only enables rapid connection between the rebar body and the truss positioning structure, but also enables precise positioning of the rebar body by the truss positioning structure, and ensures reliable force transmission between the rebar body and the truss positioning structure, thus guaranteeing the stress performance of the overall structure; by opening limiting holes in the limiting plate, the end of the rebar body away from the truss positioning structure is precisely positioned and / or limited, preventing the rebar body from deviating, ensuring the stability of the overall structure of the rebar connection and positioning truss device, and facilitating precise positioning construction of the rebar connection and positioning truss device; by connecting the truss positioning structure, nuts, limiting plates and the rebar body together to form an integrated rebar connection and positioning truss device, it simultaneously achieves rapid connection between the truss positioning structure and the rebar body and precise positioning of the rebar body, ensuring the reliability of load transmission between the truss positioning structure and the rebar body, reducing on-site rebar binding work, effectively improving construction efficiency, and promoting the industrialization process of nuclear engineering.

[0012] In one alternative implementation, the truss positioning structure includes:

[0013] First channel steel;

[0014] The second channel steel is arranged at a relative interval to the first channel steel along a third direction;

[0015] Both the first and second channel steels include a web and upper and lower flanges on both sides of the web. The web is adapted to share the load with the steel bar body. Positioning holes are adapted to be opened on the upper and lower flanges. The positioning holes are adapted to be quickly connected to the steel bar body by nuts.

[0016] A first connecting plate is disposed between the first channel steel and the second channel steel, and the first connecting plate is adapted to be fixedly connected with the first channel steel and the second channel steel to form a truss positioning structure.

[0017] The rebar connection and positioning truss device provided by this invention has a first connecting plate, a first channel steel, and a second channel steel fixedly connected to form a truss positioning structure. The truss positioning structure fixes the rebar body with nuts. On the one hand, it can realize the rapid connection between the truss positioning structure and the rebar body, and on the other hand, it can accurately position the rebar body. Furthermore, for the same truss positioning structure, the upper flange can be reliably connected to the rebar body of the same layer through nuts, and the lower flange can be reliably connected to the rebar body of the next layer through nuts. The load is reliably transferred through the web, thereby ensuring the stress performance of the rebar structure.

[0018] In one alternative embodiment, the first connecting plate includes an upper connecting plate and a lower connecting plate, which are arranged at a distance from each other in a first direction.

[0019] The steel bar connection and positioning truss device provided by this invention has an upper connecting plate fixedly connected at one end along a third direction to the upper flange of a first channel steel and at the other end to the upper flange of a second channel steel; a lower connecting plate fixedly connected at one end along a third direction to the lower flange of the first channel steel and at the other end to the lower flange of the second channel steel, thereby forming an integral load-bearing structure with the first connecting plate, the first channel steel, and the second channel steel, ensuring the stress stability of the truss positioning structure.

[0020] In one optional embodiment, the truss positioning structure further includes a flange reinforcing plate, which is fixedly disposed on the side of the first channel steel and / or the second channel steel away from the first connecting plate along a third direction; one side of the flange reinforcing plate along the first direction is fixedly connected to the upper flange, and the other side is fixedly connected to the lower flange.

[0021] The steel bar connection and positioning truss device provided by the present invention has a flange reinforcing plate fixedly connected to the upper flange on one side along the first direction and fixedly connected to the lower flange on the other side. On the one hand, it can enhance the connection stability of the flanges of the first channel steel and / or the second channel steel. On the other hand, the flange reinforcing plate can reliably transfer the load together with the web plate, ensuring the reliability of the connection and positioning of the truss positioning structure with the steel bars on both sides of the first direction.

[0022] In one alternative implementation, the limiting plate includes:

[0023] The first limiting plate has a plurality of limiting holes, which are spaced apart along the second direction on the first limiting plate.

[0024] The second limiting plate has a plurality of limiting holes, which are spaced apart along the second direction on the second limiting plate.

[0025] The second connecting plate is disposed between the first limiting plate and the second limiting plate, and the second connecting plate is adapted to be connected with the first limiting plate and the second limiting plate to form an integral structure.

[0026] The rebar connection and positioning truss device provided by the present invention has a limiting plate that is connected together with the second connecting plate, the first limiting plate and the second limiting plate to form an integral structure. The limiting plate accurately positions and / or limits the end of the rebar body away from the truss positioning structure, avoiding the displacement of the rebar body, ensuring the stability of the overall structure of the rebar connection and positioning truss device, and facilitating the accurate positioning construction of the rebar connection and positioning truss device.

[0027] In one alternative embodiment, the reinforcing bar body includes an intermediate section and a first threaded section and a second threaded section at both axial ends of the intermediate section; the first threaded section and the second threaded section are adapted to be threadedly connected to a nut.

[0028] The steel bar connection and positioning truss device provided by the present invention allows for quick connection and precise positioning of the first threaded section to the upper flange of the truss positioning structure via a nut during the factory prefabrication stage; and quick connection and precise positioning of the second threaded section to the lower flange of the upper truss positioning structure via a nut during the on-site construction stage, thereby improving the production efficiency and on-site construction efficiency of the steel bar connection and positioning truss device.

[0029] In one alternative implementation, the limiting plate is detachably connected to the reinforcing bar body.

[0030] The rebar connection positioning truss device provided by this invention has a limiting plate that is detachably connected to the rebar body. This allows for consideration of whether to remove the limiting plate before on-site installation based on the arrangement direction, location, and rebar skeleton form of the rebar connection positioning truss device during on-site construction, thus adapting to various complex working conditions. When the rebar skeleton on the rebar connection positioning truss device has sufficient rigidity, the limiting plate can also be removed to adapt to different construction needs.

[0031] Secondly, the present invention also provides a construction method for the steel bar connection positioning truss device as described above, comprising:

[0032] Prefabricated, integral steel reinforcement connection and positioning truss device;

[0033] The steel reinforcement connection and positioning truss device is hoisted to the top of the next floor wall as a whole on site, and the lower flange of the steel reinforcement connection and positioning truss device of this floor is connected to the steel reinforcement body of the next floor wall with nuts. The steel reinforcement body of the next floor wall is positioned by the steel reinforcement connection and positioning truss device.

[0034] Pour concrete to form the wall of this layer.

[0035] The construction method of the rebar connection positioning truss device provided by the present invention enables precise positioning and reliable force transmission through the rebar connection positioning truss device. Compared with the traditional on-site rebar binding, only one end of the rebar needs to be connected on-site, which reduces on-site rebar work and speeds up the construction process.

[0036] In one alternative embodiment, the prefabricated integral steel reinforcement connection and positioning truss device includes:

[0037] The steel reinforcement body, truss positioning structure, nut and limiting plate are processed separately;

[0038] The first threaded section of the steel bar body is connected to the upper flange of the truss positioning structure by a nut;

[0039] The limiting plate is disassembled and connected to the end of the steel bar body near the second threaded section to form an integral steel bar connection and positioning truss device.

[0040] In one optional embodiment, the construction method of the steel bar connection and positioning truss device further includes the preparation of a steel bar cage, wherein both sides of the steel bar cage in the width direction include horizontal steel bars and vertical steel bars arranged in pairs, and the horizontal steel bars and vertical steel bars are connected and positioned by the steel bar connection and positioning truss device; tie bars are provided between the inner and outer sides of the steel bar cage in the width direction, and the tie bars are suitable for tying the horizontal steel bars and vertical steel bars. Attached Figure Description

[0041] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the overall structure of a steel bar connection and positioning truss device according to an embodiment of the present invention;

[0043] Figure 2 for Figure 1 A schematic diagram of the overall structure of the truss positioning structure shown in the figure;

[0044] Figure 3 for Figure 1 A schematic diagram of the overall structure of the limiting plate shown in the figure;

[0045] Figure 4 for Figure 1 A schematic diagram of the overall structure of the steel reinforcement body shown;

[0046] Figure 5This is a schematic diagram of the overall structure of another steel bar connection and positioning truss device according to an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the overall structure of another steel bar connection and positioning truss device according to an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram illustrating the construction principle of a steel bar connection and positioning truss device according to an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram illustrating the construction principle of another steel bar connection and positioning truss device according to an embodiment of the present invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] 10. Reinforcing bar body; 101. Intermediate section; 102. First threaded section; 103. Second threaded section; 11. Horizontal reinforcing bar; 12. Vertical reinforcing bar;

[0052] 20. Truss positioning structure; 201. Positioning hole; 202. Web plate; 203. Upper flange; 204. Lower flange; 21. First channel steel; 22. Second channel steel; 23. First connecting plate; 231. Upper connecting plate; 232. Lower connecting plate; 24. Flange reinforcing plate;

[0053] 30. Nuts;

[0054] 40. Limiting plate; 401. Limiting hole; 41. First limiting plate; 42. Second limiting plate; 43. Second connecting plate;

[0055] 100, First wall; 200, Second wall. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0057] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0058] According to an embodiment of the present invention, in one aspect, a steel bar connection positioning truss device is provided, comprising:

[0059] 10 steel bars;

[0060] The truss positioning structure 20 has a plurality of positioning holes 201 opened along the first direction. The opening spacing of the positioning holes 201 is equal to the design arrangement spacing of the steel bar body 10. Each positioning hole 201 is suitable for connecting to one axial end of the steel bar body 10.

[0061] Nut 30 is coaxially arranged with positioning hole 201. Nut 30 is located on the side of truss positioning structure 20 away from the steel bar body 10 along the first direction. Nut 30 is suitable for threaded connection with one axial end of steel bar body 10 so as to accurately position steel bar body 10 and quickly connect it to truss positioning structure 20.

[0062] The limiting plate 40 is arranged at intervals relative to the truss positioning structure 20 along the first direction; the limiting plate 40 is provided with a plurality of limiting holes 401 along the first direction, wherein the opening spacing of the limiting holes 401 is equal to the design arrangement spacing of the reinforcing bar body 10, and each limiting hole 401 is adapted to connect to the other end of the axial direction of the reinforcing bar body 10 to position and / or limit the reinforcing bar body 10, and to make the limiting plate 40, the truss positioning structure 20 and the reinforcing bar body 10 connected together to form an integral structure.

[0063] It should be noted that the rebar connection and positioning truss device provided in this embodiment mainly includes a rebar body 10, a truss positioning structure 20, a nut 30, and a limiting plate 40. The rebar body 10, the truss positioning structure 20, the nut 30, and the limiting plate 40 can all be prefabricated in the factory and assembled together to form an integral rebar connection and positioning truss device. During on-site construction, the rebar connection and positioning truss device is hoisted to the designated position as a whole, which greatly reduces the on-site rebar binding work and helps to improve construction efficiency.

[0064] The rebar connection and positioning truss device provided in this embodiment positions the rebar body 10 by opening positioning holes 201 on the truss positioning structure 20; the rebar body 10 is fixed to the truss positioning structure 20 by nuts 30, which can achieve both quick connection between the rebar body 10 and the truss positioning structure 20 and precise positioning of the rebar body 10 by the truss positioning structure 20, and ensure reliable force transmission between the rebar body 10 and the truss positioning structure 20, thus ensuring the stress performance of the overall structure; by opening limiting holes 401 on the limiting plate 40, the end of the rebar body 10 away from the truss positioning structure 20 is positioned through the limiting holes 401. Precise positioning and / or limiting prevents the offset of the steel bar body 10, ensuring the stability of the overall structure of the steel bar connection positioning truss device and facilitating precise positioning construction. By connecting the truss positioning structure 20, nut 30, and limiting plate 40 with the steel bar body 10 to form an integrated steel bar connection positioning truss device, the device achieves rapid connection between the truss positioning structure 20 and the steel bar body 10, as well as precise positioning of the steel bar body 10. This ensures the reliability of load transfer between the truss positioning structure 20 and the steel bar body 10, reduces on-site steel bar binding work, effectively improves construction efficiency, and promotes the industrialization process of nuclear engineering.

[0065] In one embodiment, see Figure 2 As shown, the truss positioning structure 20 includes a first channel steel 21, a second channel steel 22, and a first connecting plate 23. The dimensions of the truss positioning structure 20 can be obtained through mechanical stress calculations. The second channel steel 22 and the first channel steel 21 are arranged at intervals relative to each other along a third direction. Both the first channel steel 21 and the second channel steel 22 include a web 202 and upper flanges 203 and lower flanges 204 on both sides of the web 202. The web 202 is adapted to share the load with the reinforcing bar body 10. Several positioning holes 201 are provided on the upper flanges 203 and lower flanges 204. The positioning holes 201 are adapted to position the reinforcing bar body 10, and the positioning holes 201 are adapted to be quickly connected to the reinforcing bar body 10 through nuts 30. The opening spacing of the positioning holes 201 is the same as the designed arrangement spacing of the reinforcing bar body 10. The first connecting plate 23 is disposed between the first channel steel 21 and the second channel steel 22. The first connecting plate 23 is adapted to be fixedly connected with the first channel steel 21 and the second channel steel 22 to form a truss positioning structure 20. The truss positioning structure 20 fixes the steel bar body 10 with nuts 30. On the one hand, it can realize the quick connection between the truss positioning structure 20 and the steel bar body 10. On the other hand, it can accurately position the steel bar body 10. Furthermore, for the same truss positioning structure 20, the upper flange 203 can be reliably connected with the steel bar body 10 of the same layer through nuts 30, and the lower flange 204 can be reliably connected with the steel bar body 10 of the next layer through nuts 30. The load is reliably transmitted through the web plate 202, thereby ensuring the stress performance of the steel bar structure.

[0066] In one embodiment, see Figure 2 As shown, the first connecting plate 23 includes an upper connecting plate 231 and a lower connecting plate 232, which are arranged at intervals relative to each other in a first direction. One end of the upper connecting plate 231 along a third direction is fixedly connected to the upper flange 203 of the first channel steel 21, and the other end is fixedly connected to the upper flange 203 of the second channel steel 22. One end of the lower connecting plate 232 along a third direction is fixedly connected to the lower flange 204 of the first channel steel 21, and the other end is fixedly connected to the lower flange 204 of the second channel steel 22. Thus, the first connecting plate 23 is fixedly connected to the first channel steel 21 and the second channel steel 22 to form an integral load-bearing structure, ensuring the load-bearing stability of the truss positioning structure 20.

[0067] In one embodiment, see Figure 2 As shown, the truss positioning structure 20 also includes a flange reinforcing plate 24, which is fixedly disposed on the side of the first channel steel 21 and / or the second channel steel 22 away from the first connecting plate 23 along the third direction. The flange reinforcing plate 24 is fixedly connected to the upper flange 203 on one side along the first direction and to the lower flange 204 on the other side. On the one hand, it can enhance the connection stability of the flanges of the first channel steel 21 and / or the second channel steel 22. On the other hand, the flange reinforcing plate 24 can reliably transfer the load together with the web plate 202, ensuring the reliability of the connection and positioning of the truss positioning structure 20 with the steel bars on both sides of the first direction.

[0068] In one embodiment, see Figure 3 As shown, the limiting plate 40 includes a first limiting plate 41, a second limiting plate 42, and a second connecting plate 43. The limiting plate 40 is used in conjunction with the truss positioning structure 20, and the limiting plate 40 only needs to meet the force requirements for limiting. The first limiting plate 41 has a plurality of limiting holes 401, which are spaced apart along a second direction on the first limiting plate 41. The second limiting plate 42 has a plurality of limiting holes 401, which are spaced apart along a second direction on the second limiting plate 42. The spacing between the openings of the limiting holes 401 is... The design spacing of the reinforcing bar bodies 10 is equal; the second connecting plate 43 is set between the first limiting plate 41 and the second limiting plate 42. The second connecting plate 43 is adapted to be connected with the first limiting plate 41 and the second limiting plate 42 to form a limiting plate 40 of the whole structure. The limiting plate 40 accurately positions and / or limits the end of the reinforcing bar body 10 away from the truss positioning structure 20, avoids the offset of the reinforcing bar body 10, ensures the stability of the overall structure of the reinforcing bar connection positioning truss device, and is conducive to the accurate positioning construction of the reinforcing bar connection positioning truss device.

[0069] In one embodiment, see Figure 4As shown, the steel bar body 10 includes an intermediate section 101 and a first threaded section 102 and a second threaded section 103 at both axial ends of the intermediate section 101; the first threaded section 102 and the second threaded section 103 are adapted to be threadedly connected to the nut 30; in the factory prefabrication stage, the first threaded section 102 is quickly connected to the upper flange 203 of the truss positioning structure 20 through the nut 30 and is accurately positioned on the upper flange 203 of the truss positioning structure 20; in the on-site construction stage, the second threaded section 103 is quickly connected to the lower flange 204 of the upper truss positioning structure 20 through the nut 30 and is accurately positioned, thereby improving the production efficiency and on-site construction efficiency of the steel bar connection positioning truss device.

[0070] In one embodiment, the limiting plate 40 is detachably connected to the steel bar body 10, so that during on-site construction, the installation direction, location, and steel bar skeleton form of the steel bar connection positioning truss device can be considered to determine whether to remove it before on-site installation, thus adapting to various complex working conditions. When the steel bar skeleton on the steel bar connection positioning truss device has sufficient rigidity, the limiting plate 40 can also be removed to adapt to different construction needs.

[0071] It should be noted that, Figure 1 The steel reinforcement connection and positioning truss device shown can be a standard unit with a length of a specific module; multiple units can be connected. Figure 1 The standard units shown are assembled into Figure 5 The overall device shown along the length of the wall has a number of standard units determined by the wall length; multiple units can also be combined. Figure 1 The standard units shown are assembled into Figure 6 The two vertically arranged integral devices shown are designed to facilitate the formation of steel cages on site, reducing on-site steel reinforcement work.

[0072] According to an embodiment of the present invention, please refer to Figure 7 and Figure 8 As shown, on the other hand, a construction method for the steel bar connection positioning truss device as described above is also provided, including:

[0073] Prefabricated, integral steel reinforcement connection and positioning truss device;

[0074] The steel reinforcement connection and positioning truss device is hoisted to the top of the first wall 100 of the next floor and the lower flange 204 of the steel reinforcement connection and positioning truss device of the second wall 200 of this floor is connected to the steel reinforcement body 10 of the next floor wall through nuts 30. The steel reinforcement body 10 of the next floor wall is positioned and constructed using the steel reinforcement connection and positioning truss device.

[0075] Concrete is poured to form the wall layer; this process is repeated to complete the construction of each wall layer.

[0076] The construction method of the rebar connection positioning truss device provided by the present invention enables precise positioning and reliable force transmission through the rebar connection positioning truss device. Compared with the traditional on-site rebar binding, only one end of the rebar needs to be connected on-site, which reduces on-site rebar work and speeds up the construction process.

[0077] In one embodiment, the prefabricated integral steel reinforcement connection and positioning truss device includes:

[0078] The steel bar body 10, the truss positioning structure 20, the nut 30 and the limiting plate 40 are respectively processed to form the steel bar body 10;

[0079] The first threaded section 102 of the steel bar body 10 is connected to the upper flange 203 of the truss positioning structure 20 by a nut 30.

[0080] The limiting plate 40 is disassembled and connected to the end of the steel bar body 10 near the second threaded section 103 to form an integral steel bar connection positioning truss device.

[0081] In one embodiment, the construction method of the steel bar connection and positioning truss device further includes the preparation of a steel bar cage. The steel bar cage has horizontal steel bars 11 and vertical steel bars 12 arranged in pairs on both sides of its width direction. The horizontal steel bars 11 and vertical steel bars 12 are connected and positioned by the steel bar connection and positioning truss device. Tie bars (not shown in the figure) are provided between the inner and outer sides of the steel bar cage along the width direction. The tie bars are suitable for tying the horizontal steel bars 11 and vertical steel bars 12.

[0082] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A steel bar connection and positioning truss device, characterized in that, include: Reinforcing steel body (10); A truss positioning structure (20) has a plurality of positioning holes (201) along a first direction, and each positioning hole (201) is adapted to be connected to one axial end of the steel bar body (10). Nut (30) is coaxially arranged with the positioning hole (201). The nut (30) is located on the side of the truss positioning structure (20) away from the steel bar body (10) along the first direction. The nut (30) is adapted to be threaded to one end of the steel bar body (10) in the axial direction so as to accurately position the steel bar body (10) and quickly connect it to the truss positioning structure (20). A limiting plate (40) is provided at intervals relative to the truss positioning structure (20) along a first direction; the limiting plate (40) is provided with a plurality of limiting holes (401) along the first direction, each of the limiting holes (401) being adapted to connect with the other end of the axial direction of the steel bar body (10) to position and / or limit the steel bar body (10), and to make the limiting plate (40) connected with the truss positioning structure (20) and the steel bar body (10) to form an integral structure; The truss positioning structure (20) includes: First channel steel (21); The second channel steel (22) is arranged at a relative interval from the first channel steel (21) along a third direction; Both the first channel steel (21) and the second channel steel (22) include a web (202) and upper flanges (203) and lower flanges (204) on both sides of the web (202). The web (202) is adapted to share the force with the steel bar body (10). The upper flange (203) and the lower flange (204) are adapted to have positioning holes (201). The positioning holes (201) are adapted to be quickly connected to the steel bar body (10) through the nuts (30). The first connecting plate (23) is disposed between the first channel steel (21) and the second channel steel (22). The first connecting plate (23) is adapted to be fixedly connected with the first channel steel (21) and the second channel steel (22) to form the truss positioning structure (20). The first connecting plate (23) includes an upper connecting plate (231) and a lower connecting plate (232), which are arranged at a distance from each other in a first direction; The truss positioning structure (20) further includes a flange reinforcing plate (24), which is fixedly disposed on the side of the first channel steel (21) and / or the second channel steel (22) away from the first connecting plate (23) along a third direction; the flange reinforcing plate (24) is fixedly connected to the upper flange (203) on one side along the first direction and fixedly connected to the lower flange (204) on the other side; The steel bar body (10) includes an intermediate section (101) and a first threaded section (102) and a second threaded section (103) at both axial ends of the intermediate section (101); the first threaded section (102) and the second threaded section (103) are adapted to be threadedly connected to the nut (30).

2. The steel bar connection and positioning truss device according to claim 1, characterized in that, The limiting plate (40) includes: The first limiting plate (41) has a plurality of limiting holes (401) thereon, and the plurality of limiting holes (401) are spaced apart on the first limiting plate (41) along the second direction; The second limiting plate (42) has a plurality of limiting holes (401) thereon, and the plurality of limiting holes (401) are spaced apart on the second limiting plate (42) along the second direction; The second connecting plate (43) is disposed between the first limiting plate (41) and the second limiting plate (42). The second connecting plate (43) is adapted to be connected with the first limiting plate (41) and the second limiting plate (42) to form an integral structure.

3. The steel bar connection and positioning truss device according to any one of claims 1-2, characterized in that, The limiting plate (40) is detached from the steel bar body (10).

4. A construction method for a steel reinforcement connection and positioning truss device as described in any one of claims 1-3, characterized in that, include: Prefabricated, integral steel reinforcement connection and positioning truss device; The steel reinforcement connection and positioning truss device is hoisted to the top of the next floor wall as a whole on site, and the lower flange (204) of the steel reinforcement connection and positioning truss device of this floor is connected to the steel reinforcement body (10) of the next floor wall through nuts (30). The steel reinforcement body (10) of the next floor wall is positioned and constructed using the steel reinforcement connection and positioning truss device. Pour concrete to form the wall of this layer.

5. The construction method of the steel bar connection and positioning truss device according to claim 4, characterized in that, The prefabricated integral steel reinforcement connection and positioning truss device includes: The steel bar body (10), truss positioning structure (20), nut (30) and limiting plate (40) are respectively processed to form the steel bar body (10), truss positioning structure (20), nut (30) and limiting plate (40). The first threaded section (102) of the steel bar body (10) is connected to the upper flange (203) of the truss positioning structure (20) by a nut (30); The limiting plate (40) is disassembled and connected to the end of the steel bar body (10) near the second threaded section (103) to form an integral steel bar connection positioning truss device.

6. The construction method of the steel bar connection and positioning truss device according to claim 5, characterized in that, The construction method of the steel bar connection and positioning truss device further includes the preparation of a steel bar cage, wherein the steel bar cage has horizontal steel bars (11) and vertical steel bars (12) arranged in pairs on both sides of the width direction, and the horizontal steel bars (11) and the vertical steel bars (12) are connected and positioned by the steel bar connection and positioning truss device; a tie bar is provided between the inner and outer sides of the steel bar cage along the width direction, and the tie bar is suitable for tying the horizontal steel bars (11) and the vertical steel bars (12).

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