Prefabricated column device and prefabricated column assembly

Abstract

The utility model relates to the technical field of assembly type concrete structures, and provides a prefabricated column device and a prefabricated column assembly, the prefabricated column device comprises a prefabricated column and a connecting assembly fixed on the prefabricated column, the connecting assembly can connect the prefabricated column to a basic part, and a column foot anchor bolt is poured in the basic part; the connecting assembly comprises a core column bottom plate arranged on the column foot anchor bolt, a leveling nut and a locking nut, the leveling nut and the locking nut are connected to the column foot anchor bolt in a threaded mode, the core column bottom plate is provided with a through hole for the column foot anchor bolt to penetrate through, and the core column bottom plate is poured in the prefabricated column. The novel prefabricated column connecting structure is arranged, the structure is simple, alignment in the construction hoisting process is facilitated through butt joint of the column foot anchor bolt and the through hole of the core column bottom plate, leveling and locking after alignment can be facilitated to a great extent through cooperation of the core column bottom plate, the leveling nut and the locking nut, and the construction efficiency is improved. Therefore, the prefabricated column device is simple in structure and convenient to construct and operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of precast concrete structures, and particularly relates to a precast column device and a precast column assembly. Background Technique

[0002] Due to the advantages of easy quality control, high construction efficiency, and being conducive to energy conservation and emission reduction, precast concrete buildings have been vigorously promoted in recent years. However, the connection nodes between precast concrete components have always been weak positions, and the reliability of node connection directly affects the development of precast buildings.

[0003] Precast concrete columns are common components in the field of precast concrete buildings. The connection form of precast concrete columns must meet the engineering design requirements in terms of reliability, safety, and assembly efficiency. However, in the current precast concrete structure, precast columns often adopt the method of grouting sleeves for connection. However, the precast columns with grouting sleeves have complex structures at the column foot connection parts, great difficulty in alignment and leveling during the construction hoisting process, and weak seismic performance at the connection parts, which is not conducive to post-earthquake repair. Summary of the Utility Model

[0004] The embodiment of the utility model provides a precast column device and a precast column assembly, aiming to solve at least one of the technical problems in the above background technique.

[0005] The embodiment of the utility model is implemented as follows. A precast column device includes a precast column and a connection assembly fixed on the precast column. The connection assembly can connect the precast column to a foundation member, and column foot anchor bolts are cast in the foundation member.

[0006] Wherein, the connection assembly includes a core column base plate arranged on the column foot anchor bolts, a leveling nut and a locking nut screwed on the column foot anchor bolts. The core column base plate is provided with through holes for the column foot anchor bolts to pass through. The leveling nut acts on the bottom of the core column base plate to level the core column base plate, and the locking nut acts on the top of the core column base plate to lock the core column base plate. The core column base plate is cast in the precast column.

[0007] Preferably, the precast column includes core column longitudinal bars and core column transverse bars, and the core column longitudinal bars and the core column transverse bars are arranged vertically and horizontally in a staggered manner.

[0008] Preferably, the core column longitudinal bars and the core column base plate are connected by a plug welding structure through holes.

[0009] Preferably, at least one core column stirrup is connected between two adjacent core column longitudinal bars, between two adjacent core column transverse bars, and / or between the adjacent core column longitudinal bars and the core column transverse bars.

[0010] Preferably, the precast column further includes first longitudinal reserved lapping bars, and the foundation member is provided with second longitudinal reserved lapping bars, and the first longitudinal reserved lapping bars and the second longitudinal reserved lapping bars are stagger-lapped.

[0011] Preferably, the first longitudinal reserved lapping bars are located on the outer periphery of the precast column, and the second longitudinal reserved lapping bars are located on the outer periphery of the foundation member.

[0012] Preferably, a concrete layer is cast on the outer periphery of the precast column.

[0013] Preferably, the number of the column base bolts is multiple, the bottoms of the multiple column base bolts are connected by a positioning steel plate, and the positioning steel plate is cast and fixed in the foundation member.

[0014] Preferably, a gasket is provided between the lock nut and the core column base plate.

[0015] On the other hand, the present invention also provides a precast column assembly, including a foundation member and the above-mentioned precast column device.

[0016] Compared with the prior art, a new precast column connection structure is provided, which has a simple structure. And through the docking of the column base bolts and the through holes of the core column base plate, it is convenient for alignment during the construction hoisting process. Moreover, the cooperation of the core column base plate with the leveling nut and the lock nut can greatly facilitate the leveling and locking after alignment. Therefore, the structure of this precast column device is simple and convenient for construction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the precast column device in the first embodiment of the present invention;

[0018] Figure 2 is a top view structural diagram of the core column base plate in the first embodiment of the present invention;

[0019] Figure 3 is a schematic connection structure diagram of the core column longitudinal bars and the core column base plate in the first embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0021] In the current precast concrete structures, precast columns often adopt the method of grouting sleeves for connection. However, the precast columns with grouting sleeves have complex structures at the column foot connection parts, great difficulty in alignment and leveling during the construction hoisting process, and weak seismic performance at the connection, which is not conducive to post-earthquake repair. The embodiments of the present utility model provide a precast column device and a precast column assembly containing the precast column device, aiming to at least solve the above problems existing in this connection method of the prior art. The structures of the precast column device and the precast column assembly containing the precast column device in the embodiments of the present utility model are as follows:

[0022] Example 1

[0023] Please refer to Figures 1 - 3 , which shows the precast column device 100 in Embodiment 1 of the present utility model, including a precast column 10 and a connection assembly 20 fixed on the precast column 10. The connection assembly 20 can connect the precast column 10 to the foundation member 200. Among them, the precast column 10 and the foundation member 200 are two precast concrete members that need to be connected to each other. That is, in the field of prefabricated buildings, any two precast concrete members can be connected through the connection assembly 20 in this embodiment, such as the connection between a precast beam and a precast column, etc.

[0024] Specifically, a plurality of column foot anchor bolts 210 are cast in the foundation member 200. The bottoms of the plurality of column foot anchor bolts 210 are connected by a positioning steel plate 220, and the positioning steel plate 220 is cast and fixed in the foundation member 200. Specifically, first, the plurality of column foot anchor bolts 210 are welded and fixed by the positioning steel plate 220 to obtain a welded whole, and then the welded whole is integrally cast. When casting, the threaded parts of the column foot anchor bolts 210 are exposed at the top to facilitate subsequent docking with the precast column 10.

[0025] Among them, the connection assembly 20 includes a core column bottom plate 21 arranged on the column foot anchor bolt 210, and a leveling nut 22 and a locking nut 23 screwed on the column foot anchor bolt 210. The core column bottom plate 21 is provided with a through hole 211 for the column foot anchor bolt 210 to pass through. The leveling nut 22 acts on the bottom of the core column bottom plate 21 to level the core column bottom plate 21, and the locking nut 23 acts on the top of the core column bottom plate 21 to lock the core column bottom plate 21. The core column bottom plate 21 is cast in the precast column 10. Specifically, the core column bottom plate 21 is provided with through holes 211 corresponding to the number of column foot anchor bolts 210, so that the core column bottom plate 21 can be inserted into each column foot anchor bolt 210. Each column foot anchor bolt 210 is provided with a locking nut 23 and a leveling nut 22 to level and lock the core column bottom plate 21, and then level and lock the precast column 10. A gasket 24 is provided between the locking nut 23 and the core column bottom plate 21.

[0026] In addition, the precast column 10 includes core column longitudinal bars 11 and core column transverse bars 12, which are arranged vertically and horizontally in a crisscross pattern. The core column longitudinal bars 11 are connected to the core column bottom plate 21 through a perforated plug welding structure, that is, the core column bottom plate 21 is provided with perforations, and the bottom of the core column longitudinal bars 11 is inserted into the perforations and welded to the core column bottom plate 21. At least one core column stirrup 13 is connected between two adjacent core column longitudinal bars 11, between two adjacent core column transverse bars 12, and / or between an adjacent core column longitudinal bar 11 and the core column transverse bar 12 to enhance the structural strength of the main body of the precast column 10.

[0027] The precast column 10 further includes a first longitudinally reserved lapping bar 14, and the foundation member 200 is provided with a second longitudinally reserved lapping bar 230. The first longitudinally reserved lapping bar 14 and the second longitudinally reserved lapping bar 230 are lapped in a staggered manner to achieve further connection between the precast column 10 and the foundation member 200. Specifically, the first longitudinally reserved lapping bar 14 and the second longitudinally reserved lapping bar 230 can be specifically lapped and welded in a staggered manner. The first longitudinally reserved lapping bar 14 is located on the outer periphery of the precast column 10, and the second longitudinally reserved lapping bar 230 is located on the outer periphery of the foundation member 200. A concrete layer 15 is poured on the outer periphery of the precast column 10. During specific implementation, after the precast column 10 is connected to the foundation member 200, a pouring formwork can be set around the precast column 10. The pouring formwork and the precast column 10 enclose a pouring area. The pouring formwork can adopt a detachable formwork or a non-detachable formwork. By pouring UHPC concrete into the pouring area to seal the entire precast column 10, a UHPC column shell is formed outside the core column, which plays a role in constraining the normal concrete of the core column.

[0028] In summary, the precast column device in this embodiment is provided with a new precast column connection structure, which is simple in structure. And through the butt joint of the column foot anchor bolts and the through holes of the core column bottom plate, it is convenient for alignment during the construction hoisting process. Moreover, the cooperation of the core column bottom plate with the leveling nut and the locking nut can greatly facilitate the leveling and locking after alignment. Therefore, this precast column device is simple in structure and convenient for construction operation. In addition, the main body of this precast column adopts a crisscross arrangement of steel bars and further sets stirrups for reinforcement to improve the structural strength of the main body of the precast column. Furthermore, the outer periphery of the precast column and the foundation member is further lapped with reserved steel bars in a staggered manner to improve the reliability of the connection node.

[0029] Embodiment 2

[0030] Embodiment 2 of the present utility model provides a precast column assembly, including a foundation member and a precast column device connected to the foundation member, and the precast column device is the precast column device 100 in any of the above embodiments.

[0031] It should be noted that the implementation principle of the precast column device in the second embodiment of the present utility model is generally the same as that of the precast column device in the first embodiment. For the parts not described in detail in this embodiment, reference can be made to the corresponding content in the first embodiment, and this embodiment will not be elaborated here.

[0032] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" 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 utility model. In this specification, the schematic representation of the above terms does 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.

[0033] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A prefabricated column device, characterized in that: It comprises a prefabricated column and a connection assembly fixed on the prefabricated column, wherein the connection assembly can connect the prefabricated column to a foundation member, and a column foot anchor bolt is cast in the foundation member; Wherein, the connecting assembly includes a core column base plate arranged on the column base anchor bolt, and a leveling nut and a locking nut screwed on the column base anchor bolt, the core column base plate is provided with a through hole for the column base anchor bolt to pass through, the leveling nut acts on the bottom of the core column base plate and is used to level the core column base plate, the locking nut acts on the top of the core column base plate and is used to lock the core column base plate, and the core column base plate is cast in the prefabricated column.

2. The prefabricated column device according to claim 1, characterized in that: The prefabricated column comprises core column longitudinal reinforcement and core column transverse reinforcement, and the core column longitudinal reinforcement and the core column transverse reinforcement are arranged in a crisscross manner.

3. The prefabricated column device according to claim 2, characterized in that: The core column longitudinal ribs are connected to the core column bottom plate via a perforated plug welding structure.

4. The prefabricated column device according to claim 2, characterized in that: At least one core column stirrup is connected between two adjacent core column longitudinal bars, two adjacent core column transverse bars, and / or between adjacent core column longitudinal bars and core column transverse bars.

5. The prefabricated column device according to claim 1, characterized in that: The prefabricated column also includes a first longitudinal reserved lap reinforcement, and the base member is provided with a second longitudinal reserved lap reinforcement, and the first longitudinal reserved lap reinforcement and the second longitudinal reserved lap reinforcement are overlapped in a staggered manner.

6. The prefabricated column device according to claim 5, characterized in that: The first longitudinal reserved lap reinforcement is located at the outer periphery of the prefabricated column, and the second longitudinal reserved lap reinforcement is located at the outer periphery of the foundation member.

7. The prefabricated column device according to any one of claims 1 to 6, characterized in that: A concrete layer is poured on the outer periphery of the prefabricated column.

8. The prefabricated column device according to claim 1, characterized in that: There are multiple column base anchor bolts, and the bottoms of the multiple column base anchor bolts are connected by a positioning steel plate, and the positioning steel plate is cast and fixed in the foundation member.

9. The prefabricated column device according to claim 1, characterized in that: A gasket is provided between the locking nut and the stem bottom plate.

10. A prefabricated column assembly, characterized in that: The invention comprises a base member and a prefabricated column device according to any one of claims 1 to 9 connected to the base member.

Images