Connecting structure of composite pipe hollow pier column and bent cap
By using connectors to assemble and connect the composite tube hollow piers and cap beams, the problem of lack of flexible connection in the existing technology is solved, and efficient assembly and connection of composite tube hollow piers and cap beams is achieved, improving construction flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-04-14
AI Technical Summary
The existing composite tube-constrained ultra-high strength concrete hollow piers lack flexible prefabricated connection methods when connecting cap beams, which limits their application in different construction projects.
The composite pier and the cap beam are assembled and connected by connectors. The prefabricated connection between the composite pier and the cap beam is achieved by embedding and locking the mounting parts.
This improves the construction flexibility of the connection structure between the composite pipe hollow pier and the cap beam, enhancing the flexibility and efficiency of construction.
Smart Images
Figure CN224119422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of civil engineering technology, and in particular to a connection structure between a composite tube hollow pier column and a cap beam. Background Technology
[0002] The composite tube-constrained ultra-high-strength concrete hollow pier with built-in steel pipe fittings is a novel composite component. It consists of an outer composite tube and an inner hollow ultra-high-strength concrete layer, with steel pipe fittings embedded within the ultra-high-strength concrete layer. In this composite tube-constrained ultra-high-strength concrete hollow pier, the outer composite tube possesses superior corrosion resistance, protecting the internal concrete and steel pipe in corrosive environments. Simultaneously, the fiber winding direction of the composite tube is circumferential or near-circumferential, providing lateral constraint to the sandwiched concrete and enhancing shear bearing capacity. The presence of the hollow steel pipe and hollow ultra-high-strength concrete reduces the component's self-weight, while the buckling of the steel pipe is limited by the concrete, allowing for more efficient utilization of the steel's strength. The sandwiched concrete, constrained by both the outer composite tube and the inner steel tube, gives the column superior ductility and seismic performance. This composite component is particularly suitable for pier structures in bridge engineering, offering advantages such as lightweight construction, good seismic performance, and strong corrosion resistance, and has broad application prospects.
[0003] For ultra-high strength concrete hollow piers with composite material tube confinement and internal steel pipe fittings, the presence of hollow concrete inside makes direct support erection impossible. Therefore, certain technical measures should be taken at the top of these piers to meet the requirements for support erection. However, currently, ultra-high strength concrete hollow piers with composite material tube confinement and internal steel pipe fittings are all connected by on-site concrete pouring, and connectors are not yet used to assemble and connect the cap beams. This results in low construction flexibility and limits the application of ultra-high strength concrete hollow piers with composite material tube confinement and internal steel pipe fittings in various construction projects.
[0004] Therefore, it is necessary to propose a prefabricated connection structure for the hollow composite tube pier and the cap beam to improve the construction flexibility of the connection structure. Utility Model Content
[0005] To address the aforementioned issues, this utility model proposes a prefabricated connection structure for hollow composite tube piers and cap beams, thereby improving the construction flexibility of this connection structure.
[0006] This utility model is achieved through the following technical solution:
[0007] This utility model proposes a connection structure between a composite tube hollow pier and a cap beam, including a composite pier, a connector, and a cap beam. One end of the composite pier is provided with an embedded mounting part, one end of the connector is housed in the embedded mounting part and fixedly connected to the embedded mounting part, and the other end of the connector is fixedly connected to the bottom of the cap beam.
[0008] Furthermore, the embedded mounting part includes an embedded groove and a first connecting plate. The first connecting plate is located at the bottom of the embedded groove. One end of the connector is provided with a connecting post. One end of the connecting post is received in the embedded groove and fixedly connected to the first connecting plate.
[0009] Furthermore, one end of the connecting column is provided with a second connecting plate, which is fixedly connected to the first connecting plate.
[0010] Furthermore, the first connecting plate is provided with a plurality of first fixing holes, which are evenly distributed circumferentially, and the second connecting plate is provided with a plurality of second fixing holes, which are evenly distributed circumferentially, and the plurality of first fixing holes correspond one-to-one with and are aligned with the plurality of second fixing holes.
[0011] Furthermore, the connecting column is provided with a through groove, and the second connecting plate is located at the opening of the through groove.
[0012] Furthermore, one end of the connector is provided with a third connecting plate, and the bottom of the cover beam is provided with a connecting boss, and the third connecting plate is fixedly connected to the connecting boss.
[0013] Furthermore, the composite pier includes a composite material pipe, a first concrete, a steel pipe fitting, and a second concrete. The second concrete is filled inside the steel pipe fitting, and the first concrete is filled between the steel pipe fitting and the composite material pipe. The first concrete and the second concrete are connected to each other. The composite material pipe is the outermost layer, and the embedded installation part is located at one end of the steel pipe fitting.
[0014] Furthermore, the steel pipe fitting is provided with a filling cavity, and the second concrete is filled into the filling cavity.
[0015] Furthermore, the outer periphery of the steel pipe fitting is provided with multiple slots, which are evenly distributed circumferentially and communicate with the filling cavity. The first concrete is connected to the second concrete through the slots.
[0016] Furthermore, the outer periphery of the steel pipe is provided with a plurality of reinforcing plates, which are evenly distributed around the outer periphery of the steel pipe and extend into the first concrete.
[0017] The beneficial effects of this utility model are:
[0018] This utility model uses a connector to assemble and connect the composite pier and the cap beam. During connection, one end of the connector is embedded in the embedded installation part of the composite pier and locked in place. Then, the other end of the connector is connected and fixed to the cap beam to assemble and connect the composite pier and the cap beam, which provides high construction flexibility. In summary, the connection structure of this composite hollow pier and cap beam is assembled and connected in a prefabricated manner, which effectively improves the construction flexibility of the connection structure of composite hollow pier and cap beam. Attached Figure Description
[0019] Figure 1 This is an exploded view of the connection structure between the composite tube hollow pier and the cap beam of this utility model.
[0020] Figure 2 This is a schematic diagram of the connector and the cap beam of the composite tube hollow pier and cap beam connection structure of this utility model;
[0021] Figure 3 This is a sectional view of the connection structure between the composite tube hollow pier and the cap beam of this utility model;
[0022] Figure 4 This is a schematic diagram of the steel pipe fittings used in the connection structure between the composite hollow pier column and the cap beam of this utility model.
[0023] The attached figures are labeled as follows:
[0024] Composite pier 1, embedded installation part 11, embedded groove 111, first connecting plate 112, first fixing hole 1121, composite material pipe 12, first concrete 13, steel pipe fitting 14, filling cavity 141, groove 142, reinforcing plate 143, second concrete 15.
[0025] Connector 2, connecting post 21, second connecting plate 211, second fixing hole 2111, through groove 212, third connecting plate 22;
[0026] Cap beam 3, connecting boss 31. Detailed Implementation
[0027] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.
[0028] Please refer to Figures 1-4This utility model proposes a connection structure between a composite tube hollow pier and a cap beam, including a composite pier 1, a connector 2, and a cap beam 3. The composite pier 1 is a double-walled hollow pier of composite tube-concrete-steel pipe. The connector 2 can be a steel structure or a cast-in-place concrete and steel reinforcement component. One end of the composite pier 1 is provided with an embedded installation part 11. One end of the connector 2 is housed in the embedded installation part 11 and fixedly connected to the embedded installation part 11. The other end of the connector 2 is fixedly connected to the bottom of the cap beam 3.
[0029] In this embodiment, a connector is used to assemble and connect the composite pier 1 and the cap beam 3. During the connection, one end of the connector 2 is embedded in the embedded mounting part 11 of the composite pier 1 and locked and fixed by bolts. Then, the other end of the connector 2 is connected and fixed to the cap beam 3 to assemble and connect the composite pier 1 and the cap beam 3, which improves the construction flexibility of the composite pier 1 and the cap beam 3.
[0030] In summary, the connection structure between the composite hollow pipe pier and the cap beam is assembled in a prefabricated manner, which effectively improves the construction flexibility of the connection structure.
[0031] In this embodiment, the embedded mounting part 11 includes an embedded groove 111 and a first connecting plate 112. The first connecting plate 112 is located at the bottom of the embedded groove 111. One end of the connector 2 is provided with a connecting post 21. One end of the connecting post 21 is received in the embedded groove 111 and fixedly connected to the first connecting plate 112. When assembling and connecting, the connector 2 needs to be connected to the composite pier 1 first. During the connection process, the connecting post 21 is first embedded in the embedded groove 111, and then the connecting post 21 is locked and fixed to the first connecting plate 112 by bolts, thus completing the connection between the connector 2 and the composite pier 1.
[0032] In this embodiment, one end of the connecting post 21 is provided with a second connecting plate 211, which is fixedly connected to the first connecting plate 112. During assembly, the connecting post 21 is embedded in the embedding groove 111, so that the second connecting plate 211 and the first connecting plate 112 fit together. Then, the second connecting plate 211 and the first connecting plate 112 are locked and fixed by bolts.
[0033] In this embodiment, the first connecting plate 112 is provided with a plurality of first fixing holes 1121, which are evenly distributed around the circumference. The second connecting plate 211 is provided with a plurality of second fixing holes 2111, which are evenly distributed around the circumference. The plurality of first fixing holes 1121 correspond one-to-one with the plurality of second fixing holes 2111 and are aligned. When fixing the second connecting plate 211 to the first connecting plate 112, the bolts are passed through the first fixing holes 1121 and the second fixing holes 2111 and then locked to complete the fixing of the second connecting plate 211 to the first connecting plate 112.
[0034] In this embodiment, the connecting post 21 is provided with a through groove 212, and the second connecting plate 211 is located at the opening of the through groove 212. In the process of embedding the connecting post 21 into the embedding groove 111 and then tightening the bolt, the worker needs to reach into the through groove 212 to perform the operation. The through groove 212 provides a space for the worker to tighten the bolt.
[0035] In this embodiment, one end of the connector 2 is provided with a third connecting plate 22, and the bottom of the cap beam 3 is provided with a connecting boss 31. The third connecting plate 22 is fixedly connected to the connecting boss 31. After the connector 2 is fixed on the composite pier 1, the third connecting plate 22 is locked to the connecting boss 31 with screws to complete the assembly connection of the composite pier 1, the connector 2, and the cap beam 3.
[0036] In this embodiment, the composite pier 1 includes a composite material pipe 12, a first concrete 13, a steel pipe fitting 14, and a second concrete 15. The composite material pipe 12 is an FRP pipe. The second concrete 15 fills the interior of the steel pipe fitting 14, and the first concrete 13 fills the space between the steel pipe fitting 14 and the composite material pipe 12. The first concrete 13 and the second concrete 15 are interconnected. The composite material pipe 12 is the outermost layer, and the embedded installation part 11 is located at one end of the steel pipe fitting 14. Both the first concrete 13 and the second concrete 15 are ultra-high performance concrete. When constructing the pier 1, the steel pipe fitting 14 needs to be placed in the center of the composite pipe 12. Then, a hollow pipe is placed in the center of the composite pipe 12 as a mold. During pouring, the concrete fills the space between the composite pipe 12 and the steel pipe fitting 14 to form the first concrete 13. At the same time, the concrete also fills the space between the steel pipe fitting 14 and the hollow pipe to form the second concrete 15. Since the hollow pipe is used as a mold, after solidification, the second concrete 15 has a cylindrical hollow structure, which helps to reduce the overall weight of the composite pier 1.
[0037] In this embodiment, the steel pipe fitting 14 is provided with a filling cavity 141, and the second concrete 15 is filled in the filling cavity 141. The filling cavity 141 is used for pouring concrete, and the second concrete 15 is formed after pouring.
[0038] In this embodiment, the outer periphery of the steel pipe 14 is provided with a plurality of slots 142, which are evenly distributed circumferentially and communicate with the filling cavity 141. The first concrete 13 is connected to the second concrete 15 through the slots 142. The plurality of slots 142 are used to allow the concrete to flow to each other outside or inside the steel pipe 14 during the pouring process. After solidification, the first concrete 13 and the second concrete 15 are connected to each other, thereby improving the overall strength of the composite pier column 1.
[0039] In this embodiment, a plurality of reinforcing plates 143 are provided on the outer periphery of the steel pipe fitting 14. The plurality of reinforcing plates 143 are evenly distributed around the outer periphery of the steel pipe fitting 14 and extend into the first concrete 13. The function of the reinforcing plates 143 is to improve the connection force between the steel pipe fitting 14 and the first concrete 13, so that the connection between the steel pipe fitting 14 and the first concrete 13 is more stable.
[0040] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.
Claims
1. A connection structure between a composite tube hollow pier and a cap beam, characterized in that, The system includes a composite pier, a connector, and a cap beam. One end of the composite pier is provided with an embedded mounting part. One end of the connector is housed in the embedded mounting part and fixedly connected to the embedded mounting part. The other end of the connector is fixedly connected to the bottom of the cap beam.
2. The connection structure between the composite tube hollow pier and the cap beam according to claim 1, characterized in that, The embedded mounting part includes an embedding groove and a first connecting plate. The first connecting plate is located at the bottom of the embedding groove. One end of the connector is provided with a connecting post. One end of the connecting post is received in the embedding groove and fixedly connected to the first connecting plate.
3. The connection structure between the composite tube hollow pier and the cap beam according to claim 2, characterized in that, One end of the connecting column is provided with a second connecting plate, and the second connecting plate is fixedly connected to the first connecting plate.
4. The connection structure between the composite tube hollow pier and the cap beam according to claim 3, characterized in that, The first connecting plate is provided with a plurality of first fixing holes, which are evenly distributed around the circumference. The second connecting plate is provided with a plurality of second fixing holes, which are evenly distributed around the circumference. The plurality of first fixing holes correspond one-to-one with the plurality of second fixing holes and are aligned.
5. The connection structure between the composite tube hollow pier and the cap beam according to claim 3, characterized in that, The connecting column has a through groove, and the second connecting plate is located at the opening of the through groove.
6. The connection structure between the composite tube hollow pier and the cap beam according to claim 1, characterized in that, One end of the connector is provided with a third connecting plate, and the bottom of the cover beam is provided with a connecting boss. The third connecting plate is fixedly connected to the connecting boss.
7. The connection structure between the composite tube hollow pier and the cap beam according to claim 1, characterized in that, The composite pier includes a composite material tube, a first layer of concrete, a steel pipe fitting, and a second layer of concrete. The second layer of concrete is filled inside the steel pipe fitting, and the first layer of concrete is filled between the steel pipe fitting and the composite material tube. The first layer of concrete and the second layer of concrete are connected to each other. The composite material tube is the outermost layer, and the embedded installation part is located at one end of the steel pipe fitting.
8. The connection structure between the composite tube hollow pier and the cap beam according to claim 7, characterized in that, The steel pipe fitting has a filling cavity, and the second concrete is filled into the filling cavity.
9. The connection structure between the composite tube hollow pier and the cap beam according to claim 8, characterized in that, The outer periphery of the steel pipe is provided with multiple slots, which are evenly distributed circumferentially and communicate with the filling cavity. The first concrete is connected to the second concrete through the slots.
10. The connection structure between the composite tube hollow pier and the cap beam according to claim 7, characterized in that, The steel pipe is provided with a plurality of reinforcing plates on its outer periphery, and the plurality of reinforcing plates are evenly distributed around the outer periphery of the steel pipe and extend into the first concrete.