Cast-in-place support of pier top block

Abstract

The utility model provides a cast-in-place support of a pier top block, which comprises a plurality of groups of steel pipe piles which are arranged on two sides of a pier at intervals, one end of each steel pipe pile is fixed on a supporting surface through a fixing component, the other end of each steel pipe pile is provided with a cross beam, and the cast-in-place support of the pier top block further comprises a plurality of groups of bailey beams which are arranged on the cross beam in parallel at intervals. The bailey beam is provided with a disc buckle frame assembly, and the disc buckle frame assembly is connected with the pier top block formwork. According to the cast-in-place support, stress of the formwork is borne through the supporting face, compared with a traditional mode that a support is directly installed at the top of a pier, the cast-in-place support is higher in bearing capacity, more stable in structure and better in supporting effect on the pier top block formwork, and therefore the safety and stability of cast-in-place construction are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and particularly relates to a cast-in-place support for pier top blocks. Background Technique

[0002] As an important part of the bridge structure, the design and construction of pier top blocks need to consider multiple factors, including the stability of the structure, the selection of materials, and the reliability of connections, etc. Through reasonable design and construction, it can be ensured that the pier top blocks play a good supporting and connecting role in the bridge, and the safety and durability of the bridge are guaranteed.

[0003] For example, the Chinese invention patent application with the patent number 202210530408.4 provides a construction method for pouring the working blocks at the top of the steel structure bridge piers. In this construction method, while pouring the base surface pier columns, embedded components for supporting and fixing the adjustment brackets are respectively buried on the base surface pier columns and installation pits for installing the shear stress support structure are reserved, and an adjustment bracket containing the shear stress support structure is fabricated in the factory. When the adjustment bracket is erected, the adjustment bracket can be detachably erected on the base surface pier columns after pouring and curing through the cooperation of the embedded components and the installation pits and the shear stress support structure.

[0004] However, in the current cast-in-place process of pier top blocks, most of them are cast-in-place by placing the pier top block formwork on the top of the bridge pier, and only the formwork is supported by installing brackets on the top of the bridge pier. This kind of support method is not stable enough for the formwork, resulting in a decrease in the safety and stability of the cast-in-place construction. Therefore, in view of this, a cast-in-place support for pier top blocks is proposed to solve the above technical problems. Content of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the utility model proposes a cast-in-place support for pier top blocks to solve the technical problems in the above background technique, that is, in the current cast-in-place process of pier top blocks, most of them are cast-in-place by placing the pier top block formwork on the top of the bridge pier, and only the formwork is supported by installing brackets on the top of the bridge pier. This kind of support method is not stable enough for the formwork, resulting in a decrease in the safety and stability of the cast-in-place construction.

[0006] To achieve the above object, the utility model provides the following technical solutions. A cast-in-place support for pier top blocks includes:

[0007] Steel pipe piles, multiple groups of which are arranged at intervals on both sides of the bridge pier, and one end of each of them is fixed on the support surface through a fixing component;

[0008] Cross beams, two groups of which are provided and are both fixed at the other ends of the multiple groups of the steel pipe piles;

[0009] There are multiple groups of Bailey beams, which are all arranged on the cross beam at intervals and in parallel, and are arranged staggeredly with the cross beam;

[0010] The disk buckle frame assembly is arranged on the Bailey beam and is connected to the pier top block formwork.

[0011] In a preferred embodiment, the fixing assembly includes:

[0012] The bored cast-in-place pile is arranged on the ground;

[0013] The embedded part is arranged on the bored cast-in-place pile and the supporting surface; and

[0014] The connecting flange is fixedly arranged at the bottom of the steel pipe pile and is connected to the embedded part by bolts.

[0015] In a preferred embodiment, multiple groups of horizontally arranged horizontal bracings are arranged between every two adjacent groups of the steel pipe piles, and one end of every two adjacent groups of the horizontal bracings facing away from each other is connected by a diagonal brace.

[0016] In a preferred embodiment, the end of the horizontal bracing is fixedly connected to the steel pipe pile by welding, and the end of the diagonal brace is fixedly welded at the connection between the horizontal bracing and the steel pipe pile.

[0017] In a preferred embodiment, the disk buckle frame assembly includes an outer disk buckle frame and an inner disk buckle frame. An arched concave surface is arranged on the inner side of the pier top block formwork. The outer disk buckle frame is connected to the outer side of the pier top block formwork, and the inner disk buckle frame is connected to the arched concave surface.

[0018] In a preferred embodiment, distribution beams are arranged at both ends of the outer disk buckle frame and the inner disk buckle frame. The distribution beams at one end of the outer disk buckle frame and the inner disk buckle frame are connected to the Bailey beam, and the distribution beams at the other end are connected to the pier top block formwork.

[0019] In a preferred embodiment, a bearing platform is further arranged on the Bailey beam, and a railing is arranged on the outer side of the bearing platform.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The steel pipe piles in the cast-in-place support are fixed to the support surface through the fixing components and support the cross beam. The cross beam supports multiple groups of Bailey beams arranged in a staggered manner with it, and the Bailey beams support the disc buckle frame components. During the pouring process of the pier top block formwork, the force received by the pier top block formwork is transmitted to the Bailey beams through the disc buckle frame components, and the Bailey beams then vertically transmit the gravity they receive to the support surface through the cross beam and the steel pipe piles, and the support surface bears the force of the formwork. Compared with the traditional method of directly installing the support on the top of the pier, this cast-in-place support has stronger bearing capacity, more stable structure, better support effect on the pier top block formwork, thus improving the safety and stability of the cast-in-place construction. Description of the Drawings

[0022] In order to more clearly illustrate the specific implementation manners of the present invention, the drawings required for use in the specific implementation manners will be briefly introduced below. In all the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0023] Figure 1 The front view of a cast-in-place support for a pier top block provided by the present invention;

[0024] Figure 2 The side view of a cast-in-place support for a pier top block of the present invention;

[0025] Figure 3 The installation structure schematic diagram of the inner disc buckle frame in a cast-in-place support for a pier top block of the present invention;

[0026] Figure 4 The installation structure schematic diagram of the outer disc buckle frame in a cast-in-place support for a pier top block of the present invention;

[0027] Reference Signs:

[0028] 1, bored cast-in-place pile; 2, embedded part; 3, steel pipe pile; 4, connecting flange; 5, horizontal bracing; 6, diagonal brace; 7, cross beam; 8, Bailey beam; 9, bearing platform; 10, railing; 11, distribution beam; 12, outer disc buckle frame; 13, inner disc buckle frame; 14, pier top block formwork. Detailed Description of the Invention

[0029] The embodiments of the technical solutions of the present invention will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0030] Embodiment:

[0031] As Figure 1 、 2As shown in the figure, the utility model provides a cast-in-place support for pier top blocks, which is used to support the pier top block formwork 14. It includes multiple groups of steel pipe piles 3, and the multiple groups of steel pipe piles 3 are arranged at intervals on both sides of the pier, and one end of each of them is fixed on the support surface through a fixing component. The fixing component includes a bored cast-in-place pile 1 arranged on the ground. Embedded parts 2 are arranged on both the bored cast-in-place pile 1 and the support surface. A connecting flange 4 is fixedly arranged at the bottom of the steel pipe pile 3, and the connecting flange 4 is connected to the embedded part 2 through bolts.

[0032] First, set the bored cast-in-place pile 1 on the ground through the traditional cast-in-place pile construction process, and set the embedded parts 2 on the bored cast-in-place pile 1 and the support surface. The installation of the steel pipe pile 3 can be completed by connecting the embedded part 2 with the connecting flange 4 at the bottom of the steel pipe pile 3. The upper structure of the cast-in-place support is supported by the steel pipe pile 3. During the pouring process of the pier top block formwork 14, the force it receives can be transmitted to the ground or the support surface through the steel pipe pile 3 to stably support the pier top block formwork 14.

[0033] As Figure 1 、 2 shown, in this embodiment, multiple groups of horizontally arranged cross braces 5 are arranged between every two adjacent groups of steel pipe piles 3, and one end of each two adjacent groups of cross braces 5 facing away from each other is connected by a diagonal brace 6. The end of the cross brace 5 is fixedly connected to the steel pipe pile 3 by welding, and the end of the diagonal brace 6 is fixedly welded at the connection between the cross brace 5 and the steel pipe pile 3. The adjacent two groups of steel pipe piles 3 are connected through the cross brace 5, and then the adjacent two groups of steel pipe piles 3 are supported and connected to prevent displacement when the force at the end of the steel pipe pile 3 is too large. And the end of the adjacent two groups of cross braces 5 is supported by the diagonal groove to prevent the cross brace 5 from displacing, further improving the bearing capacity of the steel pipe pile 3.

[0034] As Figure 1 、 2 shown, in this embodiment, a cross beam 7 is arranged at the other end of multiple groups of steel pipe piles 3. Multiple groups of steel pipe piles 3 on one side of the pier main body are connected by a group of cross beams 7. Multiple groups of Bailey beams 8 are arranged at intervals and in parallel on the two cross beams 7, and the Bailey beams 8 and the cross beams 7 are arranged in a staggered manner. The staggered arrangement of the cross beam 7 and the Bailey beam 8 makes the end of the steel pipe pile 3 form a bearing plane, so that the force applied downward during the pouring process of the pier top block formwork 14 can be evenly transmitted to the steel pipe pile 3. And the installation and arrangement of the Bailey beam 8 are simpler and more convenient, and it can be installed without complex construction equipment, improving the installation efficiency of the cast-in-place support.

[0035] As Figure 1 、 3As shown in Figures 4, in this embodiment, a disc buckle frame assembly is provided on the Bailey beam 8, and the disc buckle frame assembly is connected to the pier top block formwork 14. The disc buckle frame assembly includes an outer disc buckle frame 12 and an inner disc buckle frame 13. An arched concave surface is provided inside the pier top block formwork 14. The outer disc buckle frame 12 is connected to the outside of the pier top block formwork 14, and the inner disc buckle frame 13 is connected to the arched concave surface. Distribution beams 11 are provided at both ends of the outer disc buckle frame 12 and the inner disc buckle frame 13. The distribution beam 11 at one end of the outer disc buckle frame 12 and the inner disc buckle frame 13 is connected to the Bailey beam 8, and the distribution beam 11 at the other end is connected to the pier top block formwork 14.

[0036] The pier top block formwork 14 is directly supported by the outer disc buckle frame 12 and the inner disc buckle frame 13, and the arched concave surface of the pier top block formwork 14 can also be supported. Through the cooperation of the distribution beam 11 with the outer disc buckle frame 12 and the inner disc buckle frame 13, the force exerted by the pier top block formwork 14 is evenly transmitted to the Bailey beam 8, so as to achieve stable support for the pier top block formwork 14.

[0037] As Figure 1 shown, in the embodiment, a bearing platform 9 is further provided on the Bailey beam 8, and a railing 10 is provided on the outside of the bearing platform 9. Workers can be located on the bearing platform 9 for construction, and the railing 10 protects the workers, reducing the probability of construction accidents.

[0038] The specific usage method and beneficial effects of the present utility model:

[0039] The steel pipe pile 3 in this cast-in-place support is fixed on the support surface and the bored cast-in-place pile 1 through the cooperation of the connecting flange 4 and the embedded part 2, and supports the cross beam 7. The cross beam 7 supports multiple groups of Bailey beams 8 arranged in a staggered manner therewith. The Bailey beam 8 supports the disc buckle frame assembly. During the pouring process of the pier top block formwork 14, the force received by the pier top block formwork 14 is transmitted to the Bailey beam 8 through the disc buckle frame assembly. The Bailey beam 8 then vertically transmits the gravity it receives to the support surface through the cross beam 7 and the steel pipe pile 3, and the support surface bears the force of the formwork. Compared with the traditional method of directly installing the support on the top of the bridge pier, this cast-in-place support has stronger bearing capacity, more stable structure, and better support effect on the pier top block formwork 14, thus improving the safety and stability of the cast-in-place construction.

[0040] The above shows and describes the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A cast-in-place bracket for a pier top block, used for supporting a pier top block formwork (14), characterized in that: Included are: Steel pipe piles (3) are provided in multiple groups and arranged at intervals on both sides of the bridge pier, and one end of each of the steel pipe piles is fixed to the supporting surface by a fixing assembly; Two groups of cross beams (7) are provided and are fixed to the other ends of the plurality of groups of steel pipe piles (3); A plurality of Bailey beams (8) are provided, and are arranged in parallel and at intervals on the crossbeam (7), and are arranged in a staggered manner with the crossbeam (7); The buckle frame assembly is arranged on the Bailey beam (8) and connected to the pier top block template (14).

2. A cast-in-place support for a pier top block according to claim 1, characterized in that: The fixing assembly comprises: Bored piles (1) are set on the ground; An embedded part (2) is arranged on the bored pile (1) and the supporting surface; and A connecting flange (4) is fixedly arranged at the bottom of the steel pipe pile (3) and is connected to the embedded part (2) by bolts.

3. The cast-in-place support for a pier top block according to claim 1, characterized in that: A plurality of groups of horizontally arranged parallel links (5) are arranged between each two adjacent groups of the steel pipe piles (3), and the opposite ends of each two adjacent groups of the parallel links (5) are connected by a diagonal brace (6).

4. The cast-in-place support for a pier top block according to claim 3, characterized in that: The end of the flat joint (5) is fixedly connected to the steel pipe pile (3) by welding, and the end of the diagonal brace (6) is fixed to the connection between the flat joint (5) and the steel pipe pile (3) by welding.

5. The cast-in-place support for a pier top block according to claim 1, characterized in that: The buckle frame assembly comprises an outer buckle frame (12) and an inner buckle frame (13); an arched concave surface is arranged on the inner side of the pier top block template (14); the outer buckle frame (12) is connected to the outer side of the pier top block template (14); and the inner buckle frame (13) is connected to the arched concave surface.

6. The cast-in-place support for a pier top block according to claim 5, characterized in that: Distribution beams (11) are provided at both ends of the outer plate buckle frame (12) and the inner plate buckle frame (13); the distribution beams (11) at one end of the outer plate buckle frame (12) and the inner plate buckle frame (13) are connected to the Bailey beam (8), and the distribution beams (11) at the other end are connected to the pier top block formwork (14).

7. The cast-in-place support for a pier top block according to claim 1, characterized in that: A bearing platform (9) is also provided on the Bailey beam (8), and a railing (10) is provided on the outer side of the bearing platform (9).

Images