Slideway anchoring device for swivel pier
By adding additional steel plates and anchor bars under the slide rail steel plate, the problem of insufficient slide rail anchoring force was solved, ensuring the safety of bridge rotation construction and typhoon resistance.
Patent Information
- Application Number
- CN202520157864.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing bridge rotation construction, insufficient anchoring force of the sliding track leads to cracking of the sliding track welds and restricted welding connections, affecting construction safety and making it impossible to cope with typhoon conditions.
An additional steel plate and vertical track anchor bars are added under the track steel plate and connected to the track steel plate with fixing bolts to ensure the stability of the anchoring device. The track steel plate is also embedded in the foundation concrete to enhance the anchoring force.
It improves the anchoring force of the slide, prevents slide deformation, ensures the safety of rotation construction, and enhances the adaptability to extreme weather such as typhoons.
Smart Images
Figure CN223867121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sliding track anchoring device for a rotating bridge pier, belonging to the technical field of bridge rotation systems. Background Technology
[0002] In existing technology, railway bridges cross the MTR using a rotation method. Requirements dictate that the bridge rotation, attitude adjustment, and reinforcement work must be completed within a single maintenance window. To meet this tight timeframe, all sliding rail adjustment bolts affecting the installation of bridge adjustment equipment must be removed. Insufficient sliding rail anchorage can cause weld cracking and warping due to internal forces, compromising the safety of the rotation. Furthermore, in some areas, welding connections of bridge structural steel bars are not permitted. After rotation, the upper and lower abutment steel bars are connected by lap joints, resulting in insufficient anchorage between the upper and lower abutments before the hinge concrete is poured. Additionally, the welding of the support legs to the sliding rail after rotation also requires sufficient anchorage to withstand potential typhoon conditions for the T-structure. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a sliding track anchoring device for rotating bridge piers, which can improve the anchoring force of the sliding track to cope with typhoon conditions, and at the same time avoid the sliding track panel from local deformation and uplift caused by welding deformation internal force, which would affect the safety of rotation.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A sliding track anchoring device for a rotating bridge pier includes several support units arranged in a circular ring. Each support unit includes a sliding track steel plate, a quartz sand layer on the sliding track steel plate, a support foot plate on the quartz sand layer, and support feet on the support foot plate. An additional sliding track steel plate is provided below the sliding track steel plate, and a sliding track anchoring bar is vertically provided below the additional sliding track steel plate. A foundation structural steel bar is provided below the sliding track steel plate, and the sliding track anchoring bar passes through the gaps between the foundation structural steel bars. A sliding track skeleton is provided below the foundation structural steel bars, and the upper part of the sliding track skeleton is connected to the sliding track steel plate. The sliding track steel plate and the portion below it are embedded in the foundation concrete.
[0006] The additional steel plate of the slide rail is fixedly connected to the slide rail steel plate by fixing bolts.
[0007] The upper end of the slide rail anchor bar passes through the additional steel plate of the slide rail and is fixed by welding.
[0008] The thickness of the additional steel plate for the slide rail is 35~45mm.
[0009] The diameter of the slide rail anchor bar is 30~50mm.
[0010] The number of support units is 6 to 10.
[0011] The fixing bolts are M16×60 bolts of grade 8.8.
[0012] The slide rail frame is connected to the slide rail steel plate by connecting bolts and nuts.
[0013] The beneficial effects of this utility model are as follows: The sliding track anchoring device for rotating bridge piers provided by this utility model has an additional sliding track steel plate under the sliding track steel plate, and vertically arranged sliding track anchoring bars under the additional sliding track steel plate. This can improve the fixing effect of the sliding track steel plate, increase the anchoring force of the anchoring device, and prevent the sliding track from deforming and warping due to welding deformation internal forces after the connecting bolts are removed, thus affecting the safety of the rotation. In addition, it increases the anchoring force of the T-structure to compensate for the insufficient anchoring force caused by the inability to weld the upper and lower pier reinforcement bars, and to cope with the extreme weather during the monsoon season. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a rotating bridge pier sliding track anchoring device according to the present invention;
[0015] Figure 2 for Figure 1 A cross-sectional view of the AA position;
[0016] The attached diagram is labeled as follows: 1-support foot; 2-support foot track plate; 3-quartz sand layer; 4-slide rail steel plate; 5-fixing bolt; 6-support structure reinforcement; 7-slide rail skeleton; 8-nut; 9-connecting bolt; 10-slide rail additional steel plate; 11-slide rail anchoring bar. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.
[0018] Example 1
[0019] like Figure 1 As shown, a sliding track anchoring device for a rotating bridge pier includes several support units arranged in a circular ring. Figure 2As shown, the support unit includes a slide rail steel plate 4, a quartz sand layer 3 on the slide rail steel plate 4, a support foot plate 2 on the quartz sand layer 3, and support feet 1 on the support foot plate 2. Below the slide rail steel plate 4 is an additional slide rail steel plate 10, and below the additional slide rail steel plate 10 are vertically installed slide rail anchor bars 11. Below the slide rail steel plate 4 are foundation structural steel bars 6, and the slide rail anchor bars 11 pass through the gaps between the foundation structural steel bars 6. To avoid conflict between the slide rail anchor bars 11 and the foundation structural steel bars 6, the position of each slide rail anchor bar 11 is specially designed, and a BIM model is used for collision checks to ensure no steel bar conflict during installation. Below the foundation structural steel bars 6 is a slide rail frame 7, the upper part of which connects to the slide rail steel plate 4. The slide rail steel plate 4 and the portion below it are embedded in the foundation concrete.
[0020] This invention improves upon the existing anchoring device by adding an additional slide rail steel plate 10 below the slide rail steel plate 4. Vertically arranged below the additional slide rail steel plate 10 are slide rail anchoring ribs 11. This combination of the additional slide rail steel plate 10 and the slide rail anchoring ribs 11 enhances the fixing effect of the slide rail steel plate 4, increases the anchoring force of the anchoring device, and prevents localized deformation and upward warping of the slide rail panel due to welding deformation internal forces after the slide rail adjusting bolts are removed, thus ensuring the safety of rotation. Furthermore, it increases the anchoring force of the T-structure to compensate for insufficient anchoring force caused by the inability to weld the upper and lower bearing reinforcements, and to cope with extreme weather conditions during the monsoon season.
[0021] Example 2
[0022] like Figure 1 As shown, a sliding track anchoring device for a rotating bridge pier includes several support units arranged in a circular ring. The number of support units is 6 to 10, and in this embodiment, it is 8. Figure 2 As shown, the support unit includes a slide rail steel plate 4, a quartz sand layer 3 on the slide rail steel plate 4, a support foot plate 2 on the quartz sand layer 3, and support feet 1 on the support foot plate 2. An additional slide rail steel plate 10 is located below the slide rail steel plate 4, and the additional slide rail steel plate 10 is fixedly connected to the slide rail steel plate 4 by fixing bolts 5 (8.8 grade M16×60 bolts). Vertically arranged below the additional slide rail steel plate 10 are slide rail anchor bars 11, the upper end of which passes through the additional slide rail steel plate 10 and is fixed by welding. The thickness of the additional slide rail steel plate 10 is 35~45mm, and in this embodiment, it is 40mm. The diameter of the slide rail anchor bars 11 is 30~50mm, and in this embodiment, it is 40mm.
[0023] The slide rail steel plate 4 is supported by reinforcing steel bars 6 for the foundation structure, and the slide rail anchor bars 11 pass through the gaps between the reinforcing steel bars 6. To avoid conflict between the slide rail anchor bars 11 and the foundation structure reinforcing steel bars 6, the position of each slide rail anchor bar 11 is specially designed and collision checks are performed using a BIM model to ensure no steel bar conflict during installation. The slide rail frame 7 is installed below the foundation structure reinforcing steel bars 6, and the upper part of the slide rail frame 7 is connected to the slide rail steel plate 4. Specifically, the slide rail frame 7 is connected to the slide rail steel plate 4 via connecting bolts 9 and nuts 8. The slide rail steel plate 4 and the portion below it are embedded in the foundation concrete.
[0024] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A sliding track anchoring device for a rotating bridge pier, characterized in that: The system includes several supporting units arranged in a circular ring. Each supporting unit includes a slide rail steel plate (4), on which a quartz sand layer (3) is provided. On the quartz sand layer (3), a support foot plate (2) is provided. On the support foot plate, a support foot (1) is provided. Below the slide rail steel plate (4), an additional slide rail steel plate (10) is provided. Below the additional slide rail steel plate (10), a slide rail anchor bar (11) is vertically provided. Below the slide rail steel plate (4), a foundation structure steel bar (6) is provided. The slide rail anchor bar (11) passes through the gap between the foundation structure steel bars (6). Below the foundation structure steel bars (6), a slide rail skeleton (7) is provided. The upper part of the slide rail skeleton (7) is connected to the slide rail steel plate (4). The slide rail steel plate (4) and the part below it are embedded in the foundation concrete.
2. The bridge pier sliding track anchoring device according to claim 1, characterized in that: The additional steel plate (10) of the slide rail is fixedly connected to the slide rail steel plate (4) by fixing bolts (5).
3. The bridge pier sliding track anchoring device according to claim 1, characterized in that: The upper end of the slide rail anchor bar (11) passes through the slide rail additional steel plate (10) and is fixed by welding.
4. The bridge pier sliding track anchoring device according to claim 1, characterized in that: The thickness of the additional steel plate (10) for the slide is 35~45mm.
5. The bridge pier sliding track anchoring device according to claim 1, characterized in that: The diameter of the slide rail anchor bar (11) is 30~50mm.
6. The bridge pier sliding track anchoring device according to claim 1, characterized in that: The number of support units is 6 to 10.
7. The bridge pier sliding track anchoring device according to claim 2, characterized in that: The fixing bolt (5) is an 8.8 grade M16×60 bolt.
8. The bridge pier sliding track anchoring device according to claim 1, characterized in that: The slide rail frame (7) is connected to the slide rail steel plate (4) by connecting bolts (9) and nuts (8).