Pier body and bearing platform connecting device and bridge lower structure
Through the connection device between the prefabricated pier body and the support platform, the pier body connection part, the support platform connection part and rubber pads, combined with anchor bolt connection, the traffic blocking, noise pollution and high cost problems in traditional bridge construction are solved, and the construction of fast and low energy consumption is achieved.
Patent Information
- Application Number
- CN202422188672.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-09-06
AI Technical Summary
Traditional bridge construction leads to long-term traffic blockade, serious noise pollution, high construction complexity and serious cost waste, making it difficult to achieve fast, efficient and low-energy construction.
The prefabricated pier body and the support connecting device is adopted, including the pier body connection, the support connecting part and rubber pad. It is connected by anchor bolts to avoid on-site grouting sleeve construction, simplify the process and improve the connection reliability.
It achieves rapid, efficient and low energy consumption of bridge construction, reduces construction costs, reduces impact on traffic and environment, and improves construction quality and reliability.
Smart Images
Figure CN223074584U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge engineering, in particular to a connecting device between a pier shaft and a bearing platform and a lower bridge structure. Background Technique
[0002] Traditional piers adopt the cast-in-situ construction method. This construction method requires the use of existing roads as construction sites, resulting in long-term traffic blockage, seriously affecting traffic flow and the daily travel of citizens. In addition, the noise generated during the construction process cannot be effectively controlled, bringing troubles to the surrounding residents. Construction equipment and auxiliary facilities need to be repeatedly configured and dispatched, which not only increases the complexity of construction, but also leads to huge consumption of resources and waste of production costs. Facing these problems, on the premise of ensuring project quality and economy, how to build bridges more quickly, efficiently and with low energy consumption has become an important issue to be solved urgently.
[0003] In order to solve the above problems, the utility model provides a connecting device between a pier shaft and a bearing platform and a lower bridge structure to solve the problems of high construction cost and low efficiency in the past bridge construction. Content of the Utility Model
[0004] The purpose of the utility model is to provide a connecting device between a pier shaft and a bearing platform and a lower bridge structure, so as to achieve the purpose of reducing construction cost and improving construction efficiency.
[0005] In order to achieve the above purpose, the utility model provides the following scheme:
[0006] A connecting device between a pier shaft and a bearing platform includes a pier shaft connecting part for being arranged on a precast pier shaft, a bearing platform connecting part arranged on the bearing platform, and a rubber pad arranged between the pier shaft connecting part and the bearing platform connecting part. The pier shaft connecting part includes a cylinder body, an upper end plate sleeved on the outer wall of the cylinder body, a lower end plate arranged at the bottom of the cylinder body, and a first stiffening plate arranged on the upper end plate. A first through hole for the longitudinal bars of the pier shaft to pass through and be anchored is formed on the upper end plate, and a second through hole for the stirrups of the pier shaft to pass through is formed on the first stiffening plate. The bearing platform connecting part includes a lower anchor plate embedded in the bearing platform, a leveling steel plate arranged on the top of the bearing platform, and anchor bolts for connecting the lower anchor plate and the leveling steel plate. A third through hole is formed on the lower end plate, and the anchor bolts pass through the leveling steel plate, the rubber pad and the third through hole and are anchored and connected with the lower end plate.
[0007] Preferably, the shape of the first stiffening plate is square, and one group of adjacent sides of the first stiffening plate are respectively vertically connected with the cylinder body and the upper end plate.
[0008] Preferably, at least two second through holes are arranged along the length direction of the first stiffening plate.
[0009] Preferably, a second stiffening plate in a square shape is arranged between the upper end plate and the lower end plate, and three sides of the second stiffening plate are respectively and perpendicularly connected to the cylinder body, the upper end plate and the lower end plate.
[0010] Preferably, a rubber pad is arranged between the lower end plate and the adjusting steel plate, and the anchor bolt penetrates through the rubber pad.
[0011] Preferably, the cylinder body is a cylindrical structure surrounded by steel wall plates.
[0012] A bridge substructure includes a precast pier body, a pier body connection part arranged at the bottom of the precast pier body, a bearing platform, a bearing platform connection part arranged on the bearing platform, and a rubber pad arranged between the pier body connection part and the bearing platform connection part. The pier body connection part is connected to the bearing platform connection part, and the cross-sectional dimension of the pier body connection part after casting concrete is the same as the cross-sectional dimension of the pier body.
[0013] Preferably, the sizes of the lower end plate and the upper end plate are not larger than the cross-sectional dimension of the precast pier body.
[0014] A construction method for a bridge substructure includes the following steps:
[0015] The utility model has achieved the following technical effects compared with the prior art:
[0016] 1. In the utility model, by respectively arranging a pier body connection part at the bottom of the precast pier body and a bearing platform connection part at the top of the bearing platform, arranging a rubber pad between the pier body connection part and the bearing platform connection part, and connecting through the pier body connection part and the bearing platform connection part, the connection and fixation of the bearing platform and the pier body can be completed. Whether it is the precast pier body, the pier body connection part or the bearing platform connection part, they can all be precast in the precast component yard, avoiding the constraints of on-site construction affected by the site and environment, simplifying the construction process, improving the construction quality and reliability of the connection part, overcoming the deficiencies of the traditional connection method in construction technology and durability, and realizing convenient construction, reliable structure and reasonable economy for the assembly of precast concrete pier column segments and the bearing platform; in addition, only facing dry splicing and connection requirements during on-site assembly can the precast bridge pier column and the bearing platform be safely docked.
[0017] 2. The connection method of connecting the pier body and the bearing platform with anchor bolts greatly reduces the construction requirements, eliminates the grouting and curing necessary for the construction of grouting sleeves and grouting corrugated pipes on the site, and thus greatly improves the work efficiency. Description of the Drawings
[0018] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 Schematic diagram of the steel-concrete composite connection device for the precast concrete pier column and the bearing platform in the example of the present utility model.
[0020] Figure 2 Cross-sectional view of the steel connector in the example of the present utility model.
[0021] Figure 3 Top view of the steel connector in the example of the present utility model.
[0022] Figure 4 Front view of the steel connector in the example of the present utility model.
[0023] Figure 5 Cross-sectional view of the steel connector at the additional stiffening plate in the example of the present utility model.
[0024] Figure 6 Schematic diagram of the upper end plate of the steel connector in the example of the present utility model.
[0025] Figure 7 Schematic diagram of the lower end plate of the steel connector in the example of the present utility model.
[0026] Figure 8 Schematic diagram of the rubber pad in the example of the present utility model.
[0027] Figure 9 Schematic diagram of the embedded device for the anchor bolts in the example of the present utility model.
[0028] Figure 10 Schematic diagram of the leveling steel plate in the example of the present utility model.
[0029] Figure 11 Schematic diagram of the lower anchor plate in the example of the present utility model.
[0030] Among them, 1, precast pier body; 2, pier body connection part; 3, rubber pad; 4, bearing platform connection part; 5, bearing platform; 21, cylinder; 22, first stiffening; 23, upper end plate; 24, second stiffening rib; 25, lower end plate; 41, leveling steel plate; 42, anchor bolt; 43, lower anchor plate. Detailed implementation manners
[0031] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0032] The purpose of the present invention is to provide a connecting device between a pier shaft and a bearing platform and a lower bridge structure, so as to achieve the purpose of reducing construction costs and improving construction efficiency.
[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] Refer to Figures 1 to 11 A connecting device between a pier shaft and a bearing platform includes a pier shaft connecting part for being arranged on a precast pier shaft, a bearing platform connecting part arranged on the bearing platform, and a rubber pad arranged between the pier shaft connecting part and the bearing platform connecting part. The pier shaft connecting part includes a cylinder body, an upper end plate sleeved on the outer wall of the cylinder body, a lower end plate arranged at the bottom of the cylinder body, and a first stiffening plate arranged on the upper end plate. A first through hole for the longitudinal bars of the pier shaft to pass through and be anchored is formed on the upper end plate, and a second through hole for the stirrups of the pier shaft to pass through is formed on the first stiffening plate. The bearing platform connecting part includes a lower anchor plate embedded in the bearing platform, a leveling steel plate arranged on the top of the bearing platform, and anchor bolts for connecting the lower anchor plate and the leveling steel plate. A third through hole is formed on the lower end plate, and the anchor bolts pass through the leveling steel plate, the rubber pad and the third through hole and are anchored and connected with the lower end plate; in the present invention, by respectively arranging a pier shaft connecting part and a bearing platform connecting part at the bottom of the precast pier shaft and the top of the bearing platform, arranging a rubber pad between the pier shaft connecting part and the bearing platform connecting part, and connecting through the pier shaft connecting part and the bearing platform connecting part, the connection and fixation of the bearing platform and the pier shaft can be completed. Whether it is the precast pier shaft, the pier shaft connecting part or the bearing platform connecting part, they can all be precast in the precast component yard, avoiding the constraints of on-site construction affected by the site and environment, simplifying the construction process, improving the construction quality and reliability of the connection part, overcoming the deficiencies of traditional connection methods in construction technology and durability, and realizing the convenience of precast concrete pier column segment assembly construction, reliable structure and reasonable economy; in addition, only facing dry splicing and connection requirements during on-site assembly can the precast pier column and the bearing platform be safely docked.
[0035] Refer to Figures 2 to 4, the shape of the first stiffening plate is square, and one set of adjacent sides of the first stiffening plate are respectively perpendicularly connected to the cylinder body and the upper end plate. The setting of the first stiffening plate ensures the connection strength between the upper end plate and the cylinder body on the one hand, and enhances the anti-deformation ability of the cylinder body on the other hand. In addition, the first stiffening plate and the second stiffening plate are welded to the cylinder body, the upper end plate and the lower end plate respectively.
[0036] Reference Figure 2 , at least two second through holes are arranged along the length direction of the first stiffening plate; ensuring that at least two layers of precast pier body stirrups are anchored to the pier body connection part, and enhancing the connection strength between the pier body connection part and the precast pier body.
[0037] Reference Figures 2 to 4 , a second stiffening plate with a square shape is arranged between the upper end plate and the lower end plate, and three sides of the second stiffening plate are respectively perpendicularly connected to the cylinder body, the upper end plate and the lower end plate.
[0038] Reference Figure 1 , a rubber pad is arranged between the lower end plate and the leveling steel plate, and the anchor bolt penetrates through the rubber pad; arranging the rubber pad can reduce the initial stiffness of the bridge pier and the seismic force demand, and play a role in seismic isolation and vibration reduction.
[0039] Furthermore, the cylinder body is a cylindrical structure surrounded by steel wall plates.
[0040] A bridge substructure includes a precast pier body, a pier body connection part arranged at the bottom of the precast pier body, a bearing platform, a bearing platform connection part arranged on the bearing platform, a rubber pad arranged between the pier body connection part and the bearing platform connection part, the pier body connection part and the bearing platform connection part are connected to each other, the pier body connection part is cast with concrete, and the cross-sectional dimension of the pier body connection part after casting is the same as the cross-sectional dimension of the pier body.
[0041] Furthermore, the sizes of the lower end plate and the upper end plate are both not larger than the cross-sectional dimension of the precast pier body.
[0042] A construction method of a bridge substructure includes the following steps:
[0043] Taking the pier body connection part as a bottom formwork, prefabricating the precast pier body, binding the pier column steel bars, the pier column reserved extended longitudinal bars pass through the first through hole, anchoring the extended longitudinal bars to the upper end plate through bolts, two stirrups pass through the second through hole, after completing the connection between the precast concrete pier column and the pier body connection part, installing the side formwork, casting concrete and filling the inside of the cylinder body;
[0044] For the construction of the bearing platform, first tie the steel bars of the bearing platform, then fix the lower anchor plate below the inner part of the steel bar framework of the bearing platform, fix the leveling steel plate above the steel bar framework, and finally pass the anchor bolts through the perforations of the lower anchor plate and the leveling steel plate in sequence, adjust the extension length of the anchor bolts and keep them vertical, and tighten with nuts to form the embedded device. Install the formwork and pour the concrete of the bearing platform. At this time, the anchor bolts are accurately embedded in the bearing platform;
[0045] For on-site assembly, vertically install the precast pier column. First, unscrew the nuts on the reserved extended anchor bolts of the bearing platform, align each anchor bolt with the through holes of the rubber pad and the lower end plate of the steel connector, pass through the rubber pad and the lower end plate of the steel connector in sequence, and lock with bolts to complete the connection between the bearing platform and the pier column.
[0046] Adaptability changes made according to actual requirements are within the protection scope of the present utility model.
[0047] It should be noted that for those skilled in the art, obviously the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights involved.
Claims
1. A connecting device between a pier body and a bearing platform, characterized in that It includes a pier body connection part used to be set on a precast pier body, a bearing platform connection part set on the bearing platform, and a rubber pad set between the pier body connection part and the bearing platform connection part. The pier body connection part includes a cylinder, an upper end plate sleeved on the outer wall of the cylinder, a lower end plate set at the bottom of the cylinder, and a first stiffening plate set on the upper end plate. A first through hole for the longitudinal bars of the pier body to pass through and be anchored is opened on the upper end plate, and a second through hole for the stirrups of the pier body to pass through is opened on the first stiffening plate. The bearing platform connection part includes a lower anchor plate embedded in the bearing platform, a leveling steel plate set on the top of the bearing platform, and anchor bolts for connecting the lower anchor plate and the leveling steel plate. A third through hole is opened on the lower end plate, and the anchor bolts pass through the leveling steel plate, the rubber pad and the third through hole and are anchored and connected with the lower end plate.
2. The connecting device between the pier body and the bearing platform according to claim 1, characterized in that, The shape of the first stiffening plate is square, and one group of adjacent sides of the first stiffening plate are respectively vertically connected with the cylinder and the upper end plate.
3. The connecting device between the pier body and the bearing platform according to claim 2, characterized in that, At least two second through holes are arranged along the length direction of the first stiffening plate.
4. The connecting device between the pier body and the bearing platform according to claim 3, characterized in that, A second stiffening plate with a square shape is arranged between the upper end plate and the lower end plate, and three sides of the second stiffening plate are respectively vertically connected with the cylinder, the upper end plate and the lower end plate.
5. A connecting device between a pier shaft and a bearing platform according to claim 1, characterized in that, A rubber pad is arranged between the lower end plate and the leveling steel plate, and the anchor bolts penetrate through the rubber pad.
6. The connecting device between pier shaft and pile cap according to claim 1, characterized in that, The cylinder is a cylindrical structure surrounded by steel wall plates.
7. A bridge substructure, characterized in that, Applying the connecting device for the pier body and the bearing platform according to any one of claims 1-6, it includes a precast pier body, a pier body connection part set at the bottom of the precast pier body, a bearing platform, and a bearing platform connection part set on the bearing platform. The pier body connection part is connected with the bearing platform connection part, the pier body connection part is poured with concrete, and the cross-sectional dimension of the pier body connection part after pouring is the same as the cross-sectional dimension of the pier body.
8. A lower structure of a bridge according to claim 7, characterized in that, The dimensions of the lower end plate and the upper end plate are both not larger than the cross-sectional dimension of the precast pier body.