Prefabricated bent cap structure convenient to assemble

Abstract

The utility model provides a prefabricated capping beam structure convenient to assemble, which comprises a capping beam body and a butt-joint assembly used for being in butt joint with a prefabricated pier column, the butt-joint assembly comprises a first butt-joint structure, the first butt-joint structure comprises a vertical butt-joint cylinder body, an inner cavity of the vertical butt-joint cylinder body is filled with a concrete filling core with the same strength as concrete of the capping beam body, and the inner cavity of the vertical butt-joint cylinder body is filled with a second butt-joint structure. The vertical butt joint cylinder comprises a first pre-buried section and a first butt joint section; the butt joint assembly further comprises a second butt joint structure which is coaxial with the vertical butt joint cylinder and arranged on the outer side of the vertical butt joint cylinder, and the second butt joint structure comprises a second pre-buried section pre-buried in the bent cap body and a second butt joint section downwards protruding out of the bottom face of the bent cap body. A guiding butt joint space for butt joint of a prefabricated pier column located below the bent cap body is formed between the second butt joint section and the first butt joint section. The prefabricated bent cap can be quickly assembled, and the assembled prefabricated bent cap has the advantages of strong joints and weak components.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a prefabricated cap beam structure which is easy to assemble. Background Art

[0002] The prefabrication and assembly of existing bridges began with the superstructure, forming a relatively complete standardization system for the design and construction of prefabricated superstructures; the prefabrication and assembly of the lower supporting structure started relatively late, with a relatively low assembly rate, mainly including prefabricated pipe piles, prefabricated piers, prefabricated cap beams, and a combination of one or more of them. The prefabrication and assembly of the lower supporting structure of the bridge is conducive to improving construction quality, accelerating construction progress, and reducing environmental impact.

[0003] At present, the assembly between the prefabricated cap beam and the prefabricated pier column usually involves setting a plurality of docking holes surrounding the prefabricated pier column on the cap beam. During assembly, the prefabricated cap beam is hoisted above the prefabricated pier column and the main reinforcement on the prefabricated pier column is controlled to be inserted into the corresponding docking holes one by one, and then all the docking holes are cast to complete the assembly between the prefabricated cap beam and the prefabricated pier column. However, this assembly method requires that the main reinforcement of each pier column is inserted into the corresponding docking hole, and the positioning accuracy is high. For example, if the main reinforcement of a pier column is bent, it is difficult to insert it into the docking hole, and it is also necessary to ensure that all the main reinforcements are inserted into all the docking holes at the same time. The actual assembly efficiency is low, and the construction progress cannot be guaranteed.

[0004] In view of this, it is necessary to propose a prefabricated cap beam structure that is easy to assemble to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a prefabricated cap beam structure that is easy to assemble, so as to solve the technical problems that the assembly of the prefabricated cap beam requires ensuring that the main reinforcement of each pier column is inserted into the corresponding docking hole, the positioning accuracy requirement is high, the actual assembly efficiency is low, and the construction progress cannot be guaranteed.

[0006] To achieve the above-mentioned purpose, the utility model provides a prefabricated cap beam structure that is easy to assemble, including a cap beam body and a docking assembly for docking with prefabricated piers; wherein the docking assembly includes a first docking structure, the first docking structure includes a first embedded section embedded in the cap beam body and a first docking section protruding downward from the bottom surface of the cap beam body.

[0007] Preferably, the first docking structure comprises a vertical docking cylinder, the inner cavity of which is filled with a concrete core having the same strength as that of the concrete of the cap beam body, and the vertical docking cylinder comprises the first embedded section and the first docking section.

[0008] Preferably, the docking assembly also includes a second docking structure which is arranged coaxially with the vertical docking cylinder and is arranged on the outside of the vertical docking cylinder, the second docking structure includes a second embedded section embedded in the cap beam body and a second docking section protruding downward from the bottom surface of the cap beam body, and a guiding docking space is formed between the second docking section and the first docking section for docking prefabricated piers located under the cap beam body.

[0009] Preferably, a plurality of docking guide blocks arranged at intervals around the vertical docking cylinder are provided at the lower portion of the outer side wall of the vertical docking cylinder, and the cross-sectional dimensions of the docking guide blocks gradually increase from bottom to top.

[0010] Preferably, the docking guide block and the vertical docking cylinder are welded or integrally formed.

[0011] Preferably, the number of the docking guide blocks is set to 2 to 6 and they are evenly spaced around the outer circumference of the vertical docking cylinder.

[0012] Preferably, the docking assembly also includes a third docking structure, which is an annular docking plate, which is connected to the middle of the outer peripheral wall of the vertical docking cylinder, and is located at the bottom of the cap beam body. The bottom surface of the annular docking plate is connected to the top surface of the prefabricated pier.

[0013] Preferably, the outer wall of the vertical docking cylinder is provided with a plurality of first stiffening plates arranged at intervals around the vertical docking cylinder above the annular docking plate, and the radial width of the first stiffening plates along the annular docking plate is smaller than the radial width of the annular docking plate; and / or a second stiffening plate is connected between two adjacent first stiffening plates.

[0014] Preferably, the number of the first stiffening plates is 4 to 12, and they are evenly spaced and arranged along the circumferential direction of the annular butt joint plate.

[0015] Preferably, the diameter of the vertical butt-jointed cylinder is set to 0.3-0.6d, the length is set to 0.2-1d, and the wall thickness is set to 3-20mm; wherein d is the outer diameter of the prefabricated pier.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a prefabricated cap beam structure that is easy to assemble, including a cap beam body and a docking assembly for docking with prefabricated piers, the docking assembly includes a first docking structure, the first docking structure includes a vertical docking cylinder, the inner cavity of the vertical docking cylinder is filled with a concrete core with the same strength as the concrete of the cap beam body, and the vertical docking cylinder includes a first embedded section and a first docking section; the docking assembly also includes a second docking structure that is coaxially arranged with the vertical docking cylinder and is arranged on the outside of the vertical docking cylinder, the second docking structure includes a second embedded section embedded in the cap beam body and a second docking section that protrudes downward from the bottom surface of the cap beam body, and a guiding docking space for docking with the prefabricated piers located below the cap beam body is formed between the second docking section and the first docking section. The present application can realize the rapid assembly of prefabricated cap beams, and has the advantages of strong nodes and weak components after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 This is an application scenario diagram of the overall structure in one embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of another embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the combined structure of the first docking structure and the third docking structure in one embodiment of the utility model.

[0023] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0024] Description of Figure Numbers:

[0025] 10. Cap beam body; 20. First docking structure; 210. Vertical docking cylinder; 211. Concrete core filling; 212. First embedded section; 213. First docking section; 220. Docking guide block; 30. Second docking structure; 310. Second embedded section; 320. Second docking section; 330. Guide docking space; 410. Annular docking plate; 420. First stiffening plate; 50. Prefabricated pier. DETAILED DESCRIPTION

[0026] 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.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] See also Figures 1 to 4 In one embodiment of the utility model, a prefabricated cap beam structure that is easy to assemble includes a cap beam body 10 and a docking assembly (not shown) for docking with a prefabricated pier 50; wherein the docking assembly includes a first docking structure 20, the first docking structure 20 includes a first embedded section 212 embedded in the cap beam body 10 and a first docking section 213 protruding downward from the bottom surface of the cap beam body 10.

[0031] Specifically, by providing a docking assembly, it is convenient to quickly assemble the cap beam body 10 and the prefabricated pier 50. During assembly, the cap beam body 10 is lifted, and the first docking section 213 of the first docking structure 20 is inserted into the hollow part of the prefabricated pier 50, so that the cap beam can be quickly assembled to the top of the prefabricated pier 50. Furthermore, the number of docking assemblies can be set according to actual needs. In a specific example, the number of docking assemblies is two, and the two docking assemblies are arranged at intervals along the transverse direction of the prefabricated cap beam. The first docking structure 20 and the prefabricated cap beam body 10 can be cast in advance as a whole.

[0032] As a preferred embodiment, the first docking structure 20 includes a vertical docking cylinder 210, the inner cavity of which is filled with a concrete core 211 having the same strength as the concrete of the cap beam body 10, and the vertical docking cylinder 210 includes the first embedded section 212 and the first docking section 213. That is, the first docking structure 20 and the cap beam body 10 can be prefabricated as an integral form, and the inner cavity of the vertical docking cylinder 210 is filled with the same concrete as the concrete of the cap beam body 10. As a preferred example, the diameter of the vertical docking cylinder 210 is set to 0.3-0.6d, the length is set to 0.2-1d, and the wall thickness is set to 3-20mm; wherein d is the outer diameter of the prefabricated pier 50.

[0033] It is also worth noting that the first embedded section 212 pre-embedded and cast in the cap beam body 10 and the concrete core 211 filled in the inner cavity of the vertical butt cylinder 210 can greatly improve the seismic ductility of the pier structure. By filling the vertical butt cylinder 210 with concrete to form a CFST tenon, as an important component of the connection joint, the ductility and shear resistance of the joint are greatly increased, and the brittle failure of the joint can be prevented.

[0034] As a preferred embodiment, the docking assembly also includes a second docking structure 30 which is arranged coaxially with the vertical docking cylinder 210 and is provided on the outside of the vertical docking cylinder 210, the second docking structure 30 includes a second embedded section 310 embedded in the cap beam body 10 and a second docking section 320 protruding downward from the bottom surface of the cap beam body 10, and a guiding docking space 330 is formed between the second docking section 320 and the first docking section 213 for docking a prefabricated pier 50 located below the cap beam body 10.

[0035] Specifically, a guiding docking space 330 is formed between the second docking section 320 and the first docking section 213 for docking of the prefabricated pier 50 located below the cap beam body 10. When assembling and docking, it is only necessary to hoist the cap beam body 10 above the prefabricated pier 50 so that the upper end of the prefabricated pier 50 (usually a tubular structure) can dock into the guiding docking space 330. At this time, the vertical docking cylinder 210 extends into the inner cavity of the prefabricated pier 50, and the top of the prefabricated pier 50 is connected to the bottom of the cap beam body 10. The assembly is simple and easy to operate. As a preferred example, the second docking structure 30 can be in the form of a cylinder of a reinforced concrete structure.

[0036] As a preferred embodiment, a plurality of docking guide blocks 220 are arranged at intervals around the vertical docking cylinder 210 at the lower portion of the outer side wall of the vertical docking cylinder 210 , and the cross-sectional dimensions of the docking guide blocks 220 gradually increase from bottom to top.

[0037] Specifically, a docking guide block 220 is provided on the side wall of the vertical docking cylinder 210, so that the vertical docking cylinder 210 and the prefabricated pier 50 are guided to dock through the docking guide block 220, for example, the first docking section 213 of the vertical docking cylinder is quickly guided to be inserted into the central cavity of the prefabricated pier 50. Furthermore, the docking guide block 220 and the vertical docking cylinder 210 are welded or integrally formed.

[0038] As a preferred example, the number of the docking guide blocks 220 is set to 2 to 6 and are evenly spaced around the outer circumference of the vertical docking cylinder 210. In other embodiments, the number and arrangement of the docking guide blocks 220 can also be other forms, and those skilled in the art can set them according to actual needs.

[0039] As a preferred embodiment, the docking assembly further includes a third docking structure (not shown in the figure), which is an annular docking plate 410, which is connected to the middle of the outer peripheral wall of the vertical docking cylinder 210, and is located at the bottom of the cap beam body 10, and the bottom surface of the annular docking plate 410 is connected to the top surface of the prefabricated pier 50. By setting the annular docking plate 410, when the cap beam body 10 and the prefabricated pier 50 are assembled and docked, the cap beam body 10 is hoisted above the prefabricated pier 50, and finally the bottom surface of the annular docking plate 410 is connected to the top surface of the prefabricated pier 50. Further, the annular docking plate 410 can be welded to the steel end plate (not shown in the figure) provided on the prefabricated pier 50 to increase the force bearing area and stability of the connection, and also improve the structural strength of the connection. Further, the annular docking plate 410 and the outer wall of the vertical docking cylinder 210 can be welded or integrally formed.

[0040] As another preferred embodiment, the outer wall of the vertical docking cylinder 210 is provided with a plurality of first stiffening plates 420 arranged at intervals around the vertical docking cylinder 210 above the annular docking plate 410, and the radial width of the first stiffening plate 420 along the annular docking plate 410 is smaller than the radial width of the annular docking plate 410; and / or a second stiffening plate (not shown) is connected between two adjacent first stiffening plates 420.

[0041] By providing a stiffening plate, the stiffening plate is connected to the annular docking plate 410, so that the structural strength of the annular docking plate 410 can be improved. In one embodiment, the outer wall of the vertical docking cylinder 210 is provided with a plurality of first stiffening plates 420 arranged at intervals around the vertical docking cylinder 210 above the annular docking plate 410, and the radial width of the first stiffening plates 420 along the annular docking plate 410 is smaller than the radial width of the annular docking plate 410; and a second stiffening plate is connected between two adjacent first stiffening plates 420. By providing the first stiffening plate 420 and the second stiffening plate at the same time, that is, a bidirectional stiffening plate is provided above the annular docking plate 410, the structural strength of the vertical docking cylinder 210 and the annular docking plate 410 can be significantly improved. In a preferred example, the second stiffening plate is an arc-shaped plate, and is arranged coaxially with the vertical docking cylinder 210.

[0042] As a preferred example, the number of the first stiffening plates 420 is 4 to 12, and they are evenly spaced along the circumferential direction of the annular docking plate 410. In other embodiments, the number of the first stiffening plates 420 can also be set to other numbers according to actual needs. The first stiffening plates 420 and the vertical docking cylinder 210 and the annular docking plate 410 can be welded or integrally formed.

[0043] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A prefabricated cap beam structure that is easy to assemble, characterized in that: It comprises a cap beam body and a docking assembly for docking with a prefabricated pier column; wherein the docking assembly comprises a first docking structure, the first docking structure comprises a first embedded section embedded in the cap beam body and a first docking section protruding downward from the bottom surface of the cap beam body; The first docking structure comprises a vertical docking cylinder, the inner cavity of which is filled with a concrete core having the same strength as the concrete of the cap beam body, and the vertical docking cylinder comprises the first embedded section and the first docking section; The docking assembly also includes a second docking structure which is arranged coaxially with the vertical docking cylinder and is arranged on the outside of the vertical docking cylinder. The second docking structure includes a second embedded section embedded in the cap beam body and a second docking section protruding downward from the bottom surface of the cap beam body. A guiding docking space is formed between the second docking section and the first docking section for docking prefabricated piers located under the cap beam body.

2. The prefabricated cap beam structure that is easy to assemble according to claim 1 is characterized in that: A plurality of docking guide blocks arranged at intervals around the vertical docking cylinder are arranged at the lower part of the outer side wall of the vertical docking cylinder, and the cross-sectional dimensions of the docking guide blocks gradually increase from bottom to top.

3. The prefabricated cap beam structure that is easy to assemble according to claim 2 is characterized in that: The docking guide block and the vertical docking cylinder are welded or integrally formed.

4. The prefabricated cap beam structure that is easy to assemble according to claim 2 is characterized in that: The number of the docking guide blocks is set to 2 to 6 and they are evenly spaced around the outer circumference of the vertical docking cylinder.

5. The prefabricated cap beam structure that is easy to assemble according to claim 1 is characterized in that: The docking assembly also includes a third docking structure, which is an annular docking plate. The annular docking plate is connected to the middle of the outer peripheral wall of the vertical docking cylinder, and the annular docking plate is located at the bottom of the cap beam body. The bottom surface of the annular docking plate is connected to the top surface of the prefabricated pier.

6. The prefabricated cap beam structure that is easy to assemble according to claim 5, characterized in that: The outer side wall of the vertical docking cylinder is provided with a plurality of first stiffening plates arranged at intervals around the vertical docking cylinder above the annular docking plate, wherein the radial width of the first stiffening plates along the annular docking plate is smaller than the radial width of the annular docking plate; and / or a second stiffening plate is connected between two adjacent first stiffening plates.

7. The prefabricated cap beam structure that is easy to assemble according to claim 6 is characterized in that: The number of the first stiffening plates is 4 to 12, and they are evenly spaced and arranged along the annular direction of the annular butt joint plate.

8. The prefabricated cap beam structure that is easy to assemble according to claim 1 is characterized in that: The diameter of the vertical butt-jointed cylinder is set to 0.3-0.6d, the length is set to 0.2-1d, and the wall thickness is set to 3-20mm; wherein d is the outer diameter of the prefabricated pier.

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