Large-span prestressed prefabricated integral pouring beam structure

Abstract

The utility model belongs to the technical field of beams, and particularly relates to a large-span prestress prefabricated integral pouring beam structure which comprises a supporting wall and a prefabricated cantilever beam, a penetrating opening is formed in the upper side wall of the supporting wall, one end of the prefabricated cantilever beam is inserted into the penetrating opening, a fixing assembly is installed outside the prefabricated cantilever beam, and the fixing assembly is fixedly connected with the supporting wall. The fixing assembly comprises an upper fixing seat and a lower fixing seat; the prefabricated cantilever beam is inserted into the inserting opening to be preliminarily connected with the supporting wall till the upper fixing base and the lower fixing base abut against the side wall of the supporting wall, then the fastening plate and the fastening nut are sequentially connected with the threaded rod, the prefabricated cantilever beam is fixed to the supporting wall, and compared with the prior art, connection is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of beams, in particular to a large-span prestressed precast integral pouring beam structure. Background Technique

[0002] At present, one end of the cantilever beam extending out of the support is the cantilever end, and there is a lack of a support structure in the prior art that can stably support the cantilever end. Especially for the cantilever beam on a large-span floor, its support structure is more important. The support structures for supporting the cantilever end of the cantilever beam in the prior art are usually structures such as steel bars or vertical bars. The support strength of this structure is poor, and its connection method with the external cantilever beam and support column is usually welding, making this structure unable to be reused.

[0003] The existing Chinese patent with the publication number CN217500551U discloses a large-span cantilever beam support structure, including a support column and a cantilever beam. One end of the cantilever beam is arranged on the support column. It also includes a support assembly, which is composed of two support blocks. The two support blocks are located on the top of the support column and are arranged on both sides of the cantilever beam. Limiting grooves for partial insertion of the top of the support column are opened on the bottom surfaces of the two support blocks. The bottom wall of the limiting groove is in fit with the end face of the top of the support column. A fixing part for fixing the support block on the top of the support column is arranged on the support block. A supporting plate for supporting the cantilever beam is rotatably arranged on the left outer wall of the support block. An adjusting part for adjusting the swing angle between the supporting plate and the support column is arranged on the support block. A reinforcing part for enhancing the supporting strength of the supporting plate on the cantilever beam is also arranged on the support block.

[0004] In view of the above and related prior arts, the inventor believes that the following defects often exist: This device is fixed by adsorbing the outer wall of the support column through a vacuum chuck. When the cantilever beam is subjected to external forces, it will affect the adsorption effect of the vacuum chuck and needs to be improved. Therefore, a large-span prestressed precast integral pouring beam structure is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a large-span prestressed precast integral pouring beam structure.

[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: The large-span prestressed precast integral cast beam structure described in the present utility model includes a support wall and a precast cantilever beam. An insertion opening is provided on the upper side wall of the support wall, and one end of the precast cantilever beam is inserted into the interior of the insertion opening. A fixing component is installed outside the precast cantilever beam. The fixing component includes an upper fixing seat and a lower fixing seat. The upper fixing seat and the lower fixing seat are respectively fixedly installed on the upper and lower surfaces of the precast cantilever beam. A plurality of threaded rods are respectively fixedly connected to the side walls of the upper fixing seat and the lower fixing seat, and the threaded rods penetrate through the support wall. A fastening plate is sleeved on the other end of the threaded rod, and a fastening nut is threadedly connected to the other end of the threaded rod.

[0007] During installation, the precast cantilever beam is inserted into the insertion opening to be preliminarily connected to the support wall until the upper fixing seat and the lower fixing seat abut against the side wall of the support wall, so that the threaded rods penetrate through the support wall. Subsequently, the fastening plate and the fastening nut are successively connected to the threaded rods, thereby fixing the precast cantilever beam on the support wall. Compared with the prior art, the connection is more stable.

[0008] Preferably, the fixing component further includes a plurality of threaded cylinders, and the threaded cylinders are embedded on the surface of the precast cantilever beam.

[0009] Preferably, the fixing component further includes a plurality of installation holes, and the installation holes are opened on the top of the precast cantilever beam.

[0010] Preferably, a reinforcing bolt is inserted into the installation hole, and the reinforcing bolt passes through the installation hole and is connected to the threaded cylinder embedded in the precast cantilever beam, strengthening the vertical connection strength between the precast cantilever beam and the support wall, further improving the stability of the two. After use, the reinforcing bolt and the fastening nut can be disassembled, and the precast cantilever beam can be removed for repeated use.

[0011] Preferably, a support component is installed on the lower fixing seat and the precast cantilever beam. The support component includes a card slot, and the card slot is opened on the side wall of the precast cantilever beam. The upper end of the supporting plate is inserted into the card slot, and the lower end of the supporting plate is connected to the lower fixing seat by a fixing bolt passing through the installation hole and the thread groove, thereby supporting the precast cantilever beam through the supporting plate, improving the overall stability of the precast cantilever beam. Moreover, the top end of the supporting plate adopts a clamping connection method, and the bottom end of the supporting plate adopts a threaded installation method, saving disassembly and assembly time.

[0012] Preferably, a supporting plate is inserted into the card slot, an installation opening is provided on the lower side wall of the supporting plate, and a fixing bolt is inserted into the installation opening.

[0013] Preferably, the support component further includes a thread groove, and the thread groove is opened on the surface of the lower fixing seat.

[0014] Preferably, a plurality of reinforcing columns are fixedly connected to the side wall of the supporting plate.

[0015] Preferably, a plurality of connecting grooves are formed in the side wall of the clamping groove. When the supporting plate is inserted into the clamping groove, the reinforcing columns are inserted into the interior of the connecting grooves, improving the tightness, the supporting range and the effect of the connection between the supporting plate and the precast cantilever beam.

[0016] Preferably, the precast cantilever beam adopts a precast monolithic casting beam structure.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, the precast cantilever beam is inserted into the insertion opening to be preliminarily connected to the supporting wall until the upper fixing seat and the lower fixing seat abut against the side wall of the supporting wall. Subsequently, the fastening plate and the fastening nut are successively connected to the threaded rod, thereby fixing the precast cantilever beam on the supporting wall. Compared with the prior art, the connection is more stable.

[0019] 2. In the present utility model, the upper end of the supporting plate is inserted into the clamping groove, and the lower end of the supporting plate is connected to the lower fixing seat by passing the fixing bolt through the mounting hole and engaging with the threaded groove, thereby supporting the precast cantilever beam through the supporting plate, improving the overall stability of the precast cantilever beam. Moreover, the top end of the supporting plate adopts a clamping connection method, while the bottom end of the supporting plate adopts a threaded installation method, saving the disassembly and assembly time. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is the Figure 1 bottom view of the present utility model;

[0023] Figure 3 It is a schematic diagram of the unfolded structure of the fixing component of the present utility model;

[0024] Figure 4 It is the Figure 3 bottom view of the present utility model;

[0025] Figure 5 It is a schematic diagram of the unfolded structure of the supporting component of the present utility model.

[0026] In the figure: 1, support wall; 2, precast cantilever beam; 3, insertion opening; 4, fixing component; 41, upper fixing seat; 42, lower fixing seat; 43, threaded rod; 44, fastening plate; 45, fastening nut; 46, threaded barrel; 47, mounting hole; 48, reinforcing bolt; 5, support component; 51, card slot; 52, supporting plate; 53, mounting opening; 54, fixing bolt; 55, threaded groove; 56, reinforcing column; 57, connecting groove. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Please refer to Figures 1-4 As shown, a long-span prestressed precast integral pouring beam structure includes a support wall 1 and a precast cantilever beam 2. An insertion opening 3 is provided on the upper side wall of the support wall 1, and one end of the precast cantilever beam 2 is inserted into the interior of the insertion opening 3. A fixing component 4 is installed outside the precast cantilever beam 2. The fixing component 4 includes an upper fixing seat 41 and a lower fixing seat 42. The upper fixing seat 41 and the lower fixing seat 42 are respectively fixedly installed on the upper and lower surfaces of the precast cantilever beam 2. A plurality of threaded rods 43 are respectively fixedly connected to the side walls of the upper fixing seat 41 and the lower fixing seat 42, and the threaded rods 43 penetrate through the support wall 1. A fastening plate 44 is sleeved on the other end of the threaded rod 43, and a fastening nut 45 is threadedly connected to the other end of the threaded rod 43.

[0030] During installation, the precast cantilever beam 2 is inserted into the insertion opening 3 to be preliminarily connected to the support wall 1 until the upper fixing seat 41 and the lower fixing seat 42 abut against the side wall of the support wall 1, so that the threaded rod 43 passes through the support wall 1. Subsequently, the fastening plate 44 and the fastening nut 45 are successively connected to the threaded rod 43, thereby fixing the precast cantilever beam 2 on the support wall 1.

[0031] The fixing component 4 further includes a plurality of threaded barrels 46, and the threaded barrels 46 are embedded on the surface of the precast cantilever beam 2.

[0032] The fixing component 4 further includes a plurality of mounting holes 47, and the mounting holes 47 are opened at the top of the precast cantilever beam 2.

[0033] A reinforcing bolt 48 is inserted into the interior of the mounting hole 47. The reinforcing bolt 48 passes through the mounting hole 47 and is connected to the threaded cylinder 46 embedded in the precast cantilever beam 2, strengthening the vertical connection strength between the precast cantilever beam 2 and the support wall 1 and further improving the stability of the two. After use, the reinforcing bolt 48 and the fastening nut 45 can be disassembled, and the precast cantilever beam 2 can be removed for repeated use.

[0034] Embodiment 2

[0035] Comparing with Embodiment 1, please refer to Figure 5 As shown, the present utility model provides another implementation manner. A support assembly 5 is installed on the lower fixing seat 42 and the precast cantilever beam 2. The support assembly 5 includes a card slot 51, and the card slot 51 is opened on the side wall of the precast cantilever beam 2. The upper end of the supporting plate 52 is inserted into the card slot 51, and the lower end of the supporting plate 52 is connected to the threaded groove 55 through the fixing bolt 54 passing through the mounting hole 47, so that the lower end of the supporting plate 52 is connected to the lower fixing seat 42. Furthermore, the precast cantilever beam 2 is supported by the supporting plate 52, improving the overall stability of the precast cantilever beam 2. Moreover, the top end of the supporting plate 52 adopts a clamping connection method, while the bottom end of the supporting plate 52 adopts a threaded installation method, saving disassembly and assembly time.

[0036] The supporting plate 52 is inserted into the interior of the card slot 51. An installation opening 53 is opened on the lower side wall of the supporting plate 52, and the fixing bolt 54 is inserted into the installation opening 53.

[0037] The support assembly 5 further includes a threaded groove 55, and the threaded groove 55 is opened on the surface of the lower fixing seat 42.

[0038] A plurality of reinforcing columns 56 are fixedly connected to the side wall of the supporting plate 52.

[0039] A plurality of connecting grooves 57 are opened on the side wall of the card slot 51. When the supporting plate 52 is inserted into the card slot 51, the reinforcing columns 56 are inserted into the interior of the connecting grooves 57, improving the tightness, the support range and the effect of the connection between the supporting plate 52 and the precast cantilever beam 2.

[0040] The precast cantilever beam 2 adopts a precast and monolithic casting beam structure.

[0041] The parts not involved in this device are the same as those in the prior art or can be implemented by using the prior art.

[0042] Working principle: During installation, the precast cantilever beam 2 is inserted into the insertion opening 3 for preliminary connection with the support wall 1 until the upper fixing seat 41 and the lower fixing seat 42 abut against the side wall of the support wall 1. Then the threaded rod 43 is passed through the support wall 1, and subsequently the fastening plate 44 and the fastening nut 45 are successively connected to the threaded rod 43, thereby fixing the precast cantilever beam 2 on the support wall 1.

[0043] The reinforcing bolt 48 passes through the mounting hole 47 and is connected to the threaded barrel 46 embedded in the precast cantilever beam 2, strengthening the vertical connection strength between the precast cantilever beam 2 and the support wall 1, further improving the stability of the two. After use, the reinforcing bolt 48 and the fastening nut 45 can be disassembled, and the precast cantilever beam 2 can be removed for repeated use.

[0044] Insert the upper end of the supporting plate 52 into the card slot 51, and the lower end of the supporting plate 52 is connected to the threaded groove 55 through the fixing bolt 54 passing through the mounting hole 47, so that the lower end of the supporting plate 52 is connected to the lower fixing seat 42. Then, the precast cantilever beam 2 is supported by the supporting plate 52, improving the overall stability of the precast cantilever beam 2. Moreover, the top end of the supporting plate 52 adopts a clamping connection method, and the bottom end of the supporting plate 52 adopts a threaded installation method, saving the disassembly and assembly time.

[0045] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A large-span prestressed precast integral cast beam structure, comprising a support wall (1) and a precast cantilever beam (2), characterized in that: The upper side wall of the support wall (1) is provided with an insertion opening (3), and one end of the precast cantilever beam (2) is inserted into the interior of the insertion opening (3). A fixing assembly (4) is installed on the outer part of the precast cantilever beam (2). The fixing assembly (4) includes an upper fixing seat (41) and a lower fixing seat (42). The upper fixing seat (41) and the lower fixing seat (42) are respectively fixedly installed on the upper and lower surfaces of the precast cantilever beam (2). A plurality of threaded rods (43) are respectively fixedly connected to the side walls of the upper fixing seat (41) and the lower fixing seat (42), and the threaded rods (43) penetrate through the support wall (1). A fastening plate (44) is sleeved on the other end of the threaded rod (43), and a fastening nut (45) is threadedly connected to the other end of the threaded rod (43).

2. The long-span prestressed precast and cast-in-place beam structure according to claim 1, wherein: The fixing assembly (4) further includes a plurality of threaded cylinders (46), and the threaded cylinders (46) are embedded in the surface of the precast cantilever beam (2).

3. The long-span prestressed precast and cast-in-place beam structure according to claim 1, characterized in that: The fixing assembly (4) further includes a plurality of mounting holes (47), and the mounting holes (47) are opened at the top of the precast cantilever beam (2).

4. The long-span prestressed precast and cast-in-place beam structure according to claim 3, wherein: A reinforcing bolt (48) is inserted into the interior of the mounting hole (47).

5. The long-span prestressed precast and cast-in-place beam structure according to claim 1, characterized in that: A support assembly (5) is installed on the lower fixing seat (42) and the precast cantilever beam (2). The support assembly (5) includes a clamping groove (51), and the clamping groove (51) is opened on the side wall of the precast cantilever beam (2).

6. The long-span prestressed precast and cast-in-place beam structure according to claim 5, characterized in that: A supporting plate (52) is inserted into the interior of the clamping groove (51). An installation opening (53) is opened on the lower side wall of the supporting plate (52), and a fixing bolt (54) is inserted into the installation opening (53).

7. The long-span prestressed precast and cast-in-place beam structure according to claim 5, characterized in that: The support assembly (5) further includes a threaded groove (55), and the threaded groove (55) is opened on the surface of the lower fixing seat (42).

8. The long-span prestressed precast and cast-in-place beam structure according to claim 6, characterized in that: A plurality of reinforcing columns (56) are fixedly connected to the side wall of the supporting plate (52).

9. The long-span prestressed precast and cast-in-place beam structure according to claim 5, characterized in that: A plurality of connecting grooves (57) are opened on the side wall of the clamping groove (51).

10. The long-span prestressed precast and cast-in-place beam structure according to claim 1, characterized in that: The precast cantilever beam (2) adopts a precast and monolithic casting beam structure.

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