Anti-sidesway structure of landscape bridge
By setting elastic components of tenons and cover beam grooves at the bottom of the bridge deck, combined with the limit steel bundle, the problem of side shift of the bridge deck caused by ear picking failure is solved, the stability and earthquake resistance of the bridge deck are improved, and the local Injury and visual discontinuity.
Patent Information
- Application Number
- CN202420870489.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-04-25
AI Technical Summary
In the existing bridge anti-lateral movement measures, the pick ears are prone to failure after multiple large collisions of the bridge deck sideways, resulting in the bridge deck losing its lateral movement function.
The bridge deck is equipped with a tenon at the bottom, a groove is provided on the cover beam, and a rubber sheet and an elastic shock absorbing pad are installed therein. Combining the limit steel bundle and anchor, an elastic component and limit structure are formed to limit the bridge deck side. Transfer, transform large collisions into small collisions, evenly distribute seismic loads, and reduce local damage.
The anti-lateral shift stability of the bridge deck is increased, which avoids visual discontinuity caused by ear picking, reduces impact force, reduces local damage, and provides a safety reserve for deformation and reset during oscillation.
Smart Images
Figure CN222349480U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of bridge structures, in particular to a landscape bridge anti-lateral displacement structure. Background Art
[0002] like Figure 1 As shown, conventional anti-lateral displacement measures of existing bridges are usually to extend existing cap beam ears 61 on both sides of the existing cap beam 6, protruding to the existing bridge deck (beam) 5 by a certain distance, thereby limiting the lateral displacement of the existing bridge deck (beam) 5.
[0003] However, in the process of implementing the prior art, the inventors found that:
[0004] During the long-term use of the bridge, although the ears on both sides of the cap beam can limit the lateral displacement of the bridge deck, the ears are easily unable to resist the lateral displacement function after being subjected to multiple large collisions caused by the lateral displacement of the bridge deck, and the bridge deck loses its lateral displacement resistance function.
[0005] Therefore, the present application provides a novel anti-lateral displacement structure of the bridge deck to increase the stability of the anti-lateral displacement of the bridge deck and solve the problem of failure of the cantilever ear due to multiple large collisions caused by the lateral displacement of the bridge deck. Utility Model Content
[0006] The utility model aims to solve the problem that the cantilever ear fails due to multiple large collisions caused by the lateral displacement of the bridge deck.
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a landscape bridge anti-lateral displacement structure, including a bridge deck, a plurality of cap beams supporting the bridge deck at predetermined intervals, the cap beam is provided with a groove on the end face in contact with the bridge deck, the bottom of the bridge deck is provided with a tenon for inserting into the groove of the cap beam, an elastic component is provided between the tenon and the groove, and the elastic component includes: a rubber sheet arranged between the end face of the tenon and the bottom of the groove, and an elastic shock-absorbing pad arranged between the side end face of the tenon and the side end face of the groove.
[0008] Preferably, a first through hole is opened on the side wall surface of the tenon, and a second through hole is opened on the cap beam. The second through hole is communicated with the first through hole of the tenon inserted into the groove of the cap beam, and is used for limiting the steel bundle passing through the first through hole and the second through hole. Limiting anchors are also embedded at both ends of the second through hole of the cap beam, which are used to connect the limiting steel bundle passing through the first through hole and the second through hole.
[0009] Preferably, the thickness of the rubber sheet is between 30 cm and 50 cm, and the thickness of the elastic shock-absorbing pad is between 30 cm and 50 cm.
[0010] Preferably, the height of the tenon is between 120 cm and 150 cm.
[0011] Compared with the prior art, the advantages and positive effects of the utility model are that, through the landscape bridge anti-lateral displacement structure provided by the utility model, the lateral displacement of the bridge deck is limited by the tenon at the bottom of the bridge deck and the groove of the cap beam, which changes the previous method of limiting the lateral displacement of the bridge deck by the ears of the cap beam protruding from the bridge deck at a certain distance, so that the treatment of the side wall of the bridge deck is not limited by the ears, and the visual continuity of the facade decorative materials of the landscape bridge is met. And it can be converted into a small collision when the bridge deck lateral displacement and the cap beam collide with a large collision, avoiding local damage to the cap beam caused by excessive collision force, and increasing the stability of the bridge deck anti-lateral displacement. In addition, a limiting steel bundle is set between the tenon of the bridge deck and the cap beam and connected by a limiting anchor, so that the seismic load is more evenly distributed in the bridge deck beam, reducing the displacement of the bridge deck with the most violent vibration, reducing its maximum collision force, and reducing the local damage to the bridge deck and the cap beam caused by the collision; at the same time, it plays a deformation reset role and increases the deformation safety reserve. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 A schematic diagram of a conventional lateral displacement-resistant structure of an existing bridge provided by the utility model;
[0013] Figure 2 A cross-sectional schematic diagram of the anti-lateral displacement structure of the landscape bridge provided by the utility model;
[0014] Legend: 100, landscape bridge anti-lateral displacement structure;
[0015] 1. Bridge deck; 11. Tenon; 111. First through hole; 2. Cap beam; 21. Groove; 211. Second through hole; 3. Elastic component; 31. Rubber sheet; 32. Elastic shock-absorbing pad; 4. Limit anchor; 5. Existing bridge deck; 6. Existing cap beam; 61. Existing cap beam ear. DETAILED DESCRIPTION
[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0018] See also Figure 2The utility model provides a technical solution: a landscape bridge anti-lateral displacement structure 100, including a bridge deck 1, a plurality of cap beams 2 supporting the bridge deck 1 at a predetermined interval, the cap beam 2 is provided with a groove 21 on the end face in contact with the bridge deck 1, the bottom of the bridge deck 1 is provided with a tenon 11 for inserting into the groove 21 of the cap beam 2, an elastic component 3 is provided between the tenon 11 and the groove 21, and the elastic component 3 includes: a rubber sheet 31 provided between the end face of the tenon 11 and the bottom of the groove 21, and an elastic shock-absorbing pad 32 provided between the side end face of the tenon 11 and the side end face of the groove 21.
[0019] Specifically, the present application provides a technical solution that is different from the previous one in which the ears are extended on both sides of the cap beam 2 to protrude a certain distance from the bridge deck 1 to limit the lateral displacement of the bridge deck 1. Instead, the ears are arranged at the bottom of the bridge deck 1, and the lateral displacement of the bridge deck 1 is limited by the cooperation between the groove 21 of the cap beam 2 and the tenon 11 at the bottom of the bridge deck 1. It should be pointed out that through this improvement, the processing of the side wall of the bridge deck 1 is made more flexible, and at the same time, the visual discontinuity of the landscape bridge facade caused by the ears protruding from the side wall of the bridge deck 1 is solved, and the landscape effect of the continuity of the side wall of the landscape bridge is weakened.
[0020] The elastic component 3 includes a rubber sheet 31 arranged between the end face of the tenon 11 and the bottom of the groove 21, and an elastic shock-absorbing pad 32 arranged on the side end face of the tenon 11 and the side end face of the groove 21. Since the span and load of the landscape bridge are small, the specification allows the use of a simple rubber plate support to transfer the load of the bridge deck beam to the cap beam 2. The side elastic shock-absorbing pad 32 mainly functions to convert a small amount of large collision force between the bridge deck beam and the cap beam into a large number of small collisions under earthquake loads, so as to avoid excessive collision force causing local damage to the components, making the bridge deck 1 unable to resist lateral displacement.
[0021] It should be noted that, through practice, setting the thickness of the rubber sheet 31 to between 30 cm and 50 cm, and the thickness of the elastic shock-absorbing pad 32 to between 30 cm and 50 cm, can minimize the lateral displacement of the bridge deck 1 and the impact damage to the cap beam 2. In a preferred embodiment provided in the present application, the thickness of the rubber sheet 31 is set to 30 cm, and the thickness of the elastic shock-absorbing pad 32 is set to 30 cm.
[0022] On the premise of achieving anti-lateral displacement through an improved new structure and setting up an elastic component 3 to reduce lateral displacement impact damage, other structures to reduce collision are also set up between the tenon 11 of the bridge deck 1 and the groove 21 of the cap beam 2. Specifically, a first through hole 111 is opened on the side wall surface of the tenon 11, and a second through hole 211 is opened on the cap beam 2. The second through hole 211 is communicated with the first through hole 111 of the tenon 11 inserted into the groove 21 of the cap beam 2, and is used to limit the steel bundle 4 (not shown in the figure) passing through the first through hole 111 and the second through hole 211. The limiting anchors 41 are also pre-embedded at the two ends of the second through hole 211 of the cap beam 2, which are used to connect the limiting steel bundle 4 passing through the first through hole 111 and the second through hole 211.
[0023] It can be understood that by limiting the limiting steel beam 4 that passes through the first through hole 111 of the tenon 11 of the bridge deck 1 and the second through hole 211 of the cap beam 2 through the limiting anchor 41, the seismic load is distributed more evenly in the bridge deck 1 beam, thereby reducing the displacement of the bridge deck 1 that oscillates most violently, reducing its maximum collision force, and reducing the local damage to the bridge deck 1 and the cap beam 2 caused by the collision; at the same time, it plays a role in deformation resetting and increases the deformation safety reserve.
[0024] Specifically, the height of the tenon 11 of the bridge deck 1 is between 120 cm and 150 cm to ensure the stability of the landscape bridge.
[0025] In a preferred embodiment provided by the present application, a plurality of cap beams 2 support the bridge deck 1, and two grooves 21 are arranged on the end surface where the cap beam 2 contacts the bridge deck 1, and the depth of the groove 21 is 150 cm and the width is 600 cm. Two tenons 11 for inserting into the two grooves 21 of the cap beam 2 are arranged at the bottom of the bridge deck 1, and the protruding height of the tenon 11 is 120 cm and the width is 540 cm. A rubber sheet 31 is arranged between the end surface of the tenon 11 and the bottom of the groove 21, and an elastic shock-absorbing pad 32 is arranged between the side end surface of the tenon and the side end surface of the groove 21, thereby increasing the stability of the bridge deck 1 against lateral displacement. Then, first through holes 111 are respectively opened on the two tenons 11 of the bridge deck 1, and the axes of the first through holes 111 of the two tenons 11 are located in the same straight line, and a second through hole 211 is opened on the cap beam 2, and the axes of the second through hole 211 and the axes of the two first through holes 111 are located in the same straight line, so as to facilitate the limiting steel bundle 4 to pass through the first through hole 111 and the second through hole 211. In addition, limited anchors 41 are pre-buried at both ends of the second through hole 211 of the cap beam 2, respectively, for connecting the limited steel bundle 4 passing through the first through hole 111 and the second through hole 211. It can be understood that the limited steel bundle 4 passing through the first through hole 111 and the second through hole 211 is limited by the limited anchor 41, so that the seismic load is more evenly distributed in the bridge deck 1 beam, reducing the displacement of the bridge deck 1 with the most violent vibration, reducing its maximum collision force, and reducing the local damage to the bridge deck 1 and the cap beam 2 caused by the collision; at the same time, it plays a role in deformation reset, increases the deformation safety reserve, and further enhances the stability of the bridge deck 1 against lateral displacement. At the same time, if the limited steel bundle 4 is damaged in other emergency disaster situations, it can be directly replaced.
[0026] It should also be pointed out that the cap beam groove is a through groove, and the length of the through groove is longer than the length of the tenon. It can be understood that the tenon has reserved space at both ends in the length direction. The setting of the reserved space is convenient for freeing up the support replacement space required by the specification. For example, the length of the cap beam through groove is 5 cm longer at both ends of the tenon, and the height of the tenon is 15 cm, that is, the reserved space is 5 cm in length and 15 cm in height, which meets the working space of the jack and can be used for support replacement.
[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A landscape bridge anti-lateral displacement structure, comprising a bridge deck, and a plurality of cap beams supporting the bridge deck at predetermined intervals, characterized in that: A groove is provided on the end face of the cap beam in contact with the bridge deck, a tenon for inserting into the cap beam groove is provided at the bottom of the bridge deck, an elastic component is provided between the tenon and the groove, and the elastic component includes: a rubber sheet provided between the end face of the tenon and the bottom of the groove, and an elastic shock-absorbing pad provided between the side end face of the tenon and the side end face of the groove.
2. The landscape bridge anti-lateral displacement structure according to claim 1 is characterized in that: A first through hole is opened on the side wall surface of the tenon, and a second through hole is opened on the cap beam. The second through hole is communicated with the first through hole of the tenon inserted into the groove of the cap beam, and is used for limiting the steel bundle passing through the first through hole and the second through hole. Limiting anchors are also pre-embedded at both ends of the second through hole of the cap beam, which are used to connect the limiting steel bundle passing through the first through hole and the second through hole.
3. The landscape bridge anti-lateral displacement structure according to claim 1 is characterized in that: The thickness of the rubber sheet is between 30 cm and 50 cm, and the thickness of the elastic shock-absorbing pad is between 30 cm and 50 cm.
4. The landscape bridge anti-lateral displacement structure according to claim 1 is characterized in that: The height of the tenon is between 120cm and 150cm.