Novel road and bridge connection structure

Abstract

The utility model relates to the technical field of road and bridge engineering construction, in particular to a novel road and bridge connection structure which comprises a bridge abutment, a roadbed, a soil retaining platform and a supporting mechanism. A transition section is arranged between the bridge abutment and the end part of the roadbed; the soil retaining table is located below the transition section. The supporting mechanism is located between the soil retaining table and the transition section, the supporting mechanism comprises a supporting plate, the supporting plate is slidably connected to the soil retaining table in the first direction, the supporting plate is provided with a fixed part and a sliding part, and the sliding part is slidably connected to the fixed part in the first direction so that the length of the supporting plate in the first direction can be increased. The supporting device has the effect of expanding the supporting range of the transition section between the bridge abutment and the roadbed.

Description

Technical Field

[0001] The present application relates to the technical field of road and bridge engineering construction, and in particular to a new type of road and bridge connection structure. Background Art

[0002] In road and bridge engineering, abutment structure design is a key link. Common abutment types include expanded foundation, ribbed abutment, pile-column abutment, etc. However, these traditional abutment types have certain limitations in design and construction, such as the expanded foundation has high requirements for foundation bearing, the pile-column abutment has weak ability to resist horizontal soil pressure, and the ribbed abutment has complex construction steps.

[0003] In the prior art, there is a transition device for eliminating vehicle jumping at a bridge head disclosed in a Chinese patent with publication number CN109024254A, which discloses a retaining platform, an overlying slab, a bridge abutment, an embankment end and a plurality of viscoelastic adjustable height supports; each viscoelastic adjustable height support is located on the retaining platform, one side of the overlying slab is overlapped on the bridge abutment, and the other side of the overlying slab is located on each viscoelastic adjustable height support and the end is in contact with the embankment end. When in use, the viscoelastic adjustable height supports are adjusted to support different positions of the overlying slab.

[0004] With regard to the above-mentioned related technologies, since the length of the retaining platform supporting the viscoelastic adjustable height bearing is limited, the support range of the viscoelastic adjustable height bearing on the retaining platform is limited to a certain extent, resulting in a height difference between the overlying slab and the end of the roadbed. Therefore, there is an urgent need for a device that can expand the support range of the transition section between the abutment and the roadbed. Utility Model Content

[0005] In order to expand the support range of the transition section between the abutment and the roadbed, the present application provides a new road-bridge connection structure.

[0006] The present application provides a novel road-bridge connection structure, which adopts the following technical solution:

[0007] A new type of road-bridge connection structure, including abutments, roadbeds, retaining platforms and supporting mechanisms;

[0008] A transition section is provided between the abutment and the end of the roadbed;

[0009] The retaining platform is located below the transition section;

[0010] The support mechanism is located between the retaining platform and the transition section, and includes a support plate, which is slidably connected to the retaining platform along a first direction, and has a fixed portion and a sliding portion, and the sliding portion is slidably connected to the fixed portion along the first direction to extend the length of the support plate in the first direction.

[0011] By adopting the above technical solution, a support plate that slides along a first direction is provided so that the support plate can support the transition section between the end of the roadbed and the abutment. When the support plate moves along the first direction to the end of the retaining platform, the support plate cannot continue to move. If there is a height difference between the middle position of the transition section and the end of the transition section, the support plate cannot provide support. To this end, a sliding portion that slides along the first direction is provided, and the length of the support plate is increased by the sliding portion, so that the sliding portion can support the middle position of the transition section, thereby expanding the support range of the transition section.

[0012] Optionally, the support plate is slidably connected to the retaining platform along a second direction, and the second direction is perpendicular to the first direction.

[0013] By adopting the above technical solution, the support plate can slide along the second direction. If there is a height difference between the transition section and the end of the roadbed, the position of the support plate in the second direction can be adjusted until the support plate and the recessed area of ​​the transition section are supported.

[0014] Optionally, the support mechanism also includes a first support rod, which is a telescopic rod. The fixed section of the first support rod is slidably connected to the retaining platform along the first direction, and the movable section is fixedly connected to the fixed part. The fixed section and the movable section of the first support rod are slidably connected at one end thereof.

[0015] By adopting the above technical solution, in order to drive the support plate to slide along the second direction, a retractable first support rod is provided, and the fixing portion of the support plate is brought into contact with the transition section by adjusting the first support rod.

[0016] Optionally, a second sliding groove for sliding the sliding part is opened along the first direction on the side of the fixed part away from the roadbed, and a contact plate is connected to the side of the sliding part close to the transition section, and the side of the contact plate close to the transition section is flush with the side of the fixed part close to the transition section.

[0017] By adopting the above technical solution, a second slide groove is set on one side of the fixed part. When the connection position between the transition section and the end of the roadbed needs to be supported, the fixed part provides support. When the middle position of the transition section needs to be supported, the sliding part is slid out of the second slide groove. However, due to the height difference between the sliding part and one side of the fixed part, the fixed part cannot provide support to the collapsed position in the middle of the transition section. Therefore, a contact plate is set flush with the fixed part, and the transition section is supported by the contact plate.

[0018] Optionally, the contact plate is slidably connected to the sliding portion along the second direction, and the sliding portion is provided with a third sliding groove for accommodating the contact plate along the second direction.

[0019] By adopting the above technical solution, when the sliding part is located outside the second slide groove and when the sliding part is not needed to support the transition section, in order to enable the sliding part to slide into the second slide groove again, the contact plate is connected to the sliding part by sliding along the second direction, so that the contact plate first slides into the third slide groove and then slides into the second slide groove, and since the contact plate slides along the second direction, the contact plate can support the collapsed area in the middle of the transition section.

[0020] Optionally, the support mechanism further includes a second support rod driving the contact plate to slide along the second direction, the sliding portion is provided with a fourth sliding groove for the second support rod to pass through, and the fourth sliding groove is connected to the third sliding groove.

[0021] By adopting the above technical solution, in order to drive the contact plate to slide along the second direction, a second support rod is provided, which not only supports the contact plate but also can adjust the height of the contact plate in the second direction.

[0022] Optionally, the second support rod is a telescopic rod, and the support mechanism further includes an elastic member and a mounting seat;

[0023] The mounting seat is located on a side of the sliding portion close to the retaining platform, the fixed section of the second support rod is fixedly connected to the mounting seat, and the movable section passes through the fourth slide slot and the third slide slot in sequence and then is connected to the contact plate;

[0024] The elastic member is sleeved with the second support rod fixed section, and the elastic member abuts between the mounting seat and the second support rod movable section. The elastic member has a force to drive the contact plate to move away from the second slide groove under recoverable deformation.

[0025] By adopting the above technical solution, an elastic member is set, and under the action of the elastic member, when the elastic member is in a normal state, the contact plate contacts and supports the transition section, and when the sliding part needs to be slid into the second sliding groove, the movable part of the second support rod is slid along the second direction, and the elastic member is compressed to slide the contact plate into the third sliding groove, and further retract the sliding part into the second sliding groove.

[0026] Optionally, it further includes a stabilization component, the stabilization component including a fixing rod, a sliding seat and a second locking member;

[0027] The sliding seat is sleeved and slidably connected to the first support rod along the second direction;

[0028] One end of the fixing rod is rotatably connected to the sliding seat, and the other end is rotatably connected to the mounting seat, and the rotation axis of the fixing rod is parallel to the third direction, and the third direction is perpendicular to both the first direction and the second direction;

[0029] The sliding seat is fixedly connected to the first supporting rod through the second locking member.

[0030] By adopting the above technical solution, in the process of supporting the transition section by the contact plate, in order to further improve the stability of the second support rod and the contact plate, a fixed rod and a sliding seat are provided, and the fixed rod is connected to the first support rod through the sliding seat, thereby stably supporting the second support rod.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. In the present application, a support plate that slides along a first direction is provided so that the support plate supports the transition section, but the support range of the support plate for the transition section is small. By providing a fixed portion and a sliding portion that slides along the first direction, the length of the support plate is further extended by the sliding portion, and the middle area of ​​the transition section is supported by the sliding portion, thereby extending the support range of the transition section and further reducing the occurrence of vehicle jumping at the bridge head;

[0033] 2. In the present application, a contact plate is provided, and the contact plate slides along the second direction, so that the contact plate supports the middle area of ​​the transition section;

[0034] 3. This application further improves the stability of the second support rod by providing a stabilization component. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of a new type of road-bridge connection structure of the present application;

[0036] Figure 2 It is a schematic diagram of the structure of the supporting organization of this application;

[0037] Figure 3 It is a schematic diagram of the structure of the stability maintenance component of this application;

[0038] Figure 4 It is a structural schematic diagram of the support seat and abutment of this application.

[0039] Explanation of the accompanying drawings: 1. Abutment; 11. Transition section; 12. Recessed portion; 2. Roadbed; 3. Retaining platform; 31. First slide groove; 4. Support mechanism; 41. Support plate; 411. Fixed portion; 4111. Second slide groove; 412. Sliding portion; 4121. Third slide groove; 4122. Fourth slide groove; 42. First support rod; 421. First slider; 43. First locking member; 44. Contact plate; 45. Second support rod; 46. Elastic member; 47. Mounting seat; 5. Stabilization assembly; 51. Fixed rod; 52. Sliding seat; 53. Second locking member; 6. Support seat. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-4 This application is described in further detail.

[0041] The present application embodiment discloses a new type of road-bridge connection structure. Figure 1 The new road-bridge connection structure includes an abutment 1, a roadbed 2, a retaining platform 3 and a supporting mechanism 4; a transition section 11 is connected between the ends of the abutment 1 and the roadbed 2; the retaining platform 3 is located below the transition section 11, and the supporting mechanism 4 is located between the retaining platform 3 and the transition section 11. The supporting mechanism 4 includes a supporting plate 41, which is slidably connected to the retaining platform 3 along a first direction. The supporting plate 41 has a fixed portion 411 and a sliding portion 412, and the sliding portion 412 is slidably connected to the fixed portion 411 along the first direction to extend the length of the support plate 41 in the first direction.

[0042] Reference Figure 1 and Figure 2 In order to support the support plate 41, the support mechanism 4 also includes a first support rod 42, the first support rod 42 is parallel to the second direction, one end of the first support rod 42 is connected to the fixed portion 411, and the other end is slidably connected to the retaining platform 3 along the first direction, so that the first support rod 42 supports the fixed portion 411 of the support plate 41, and when the first support rod 42 slides along the first direction, it can drive the fixed portion 411 of the support plate 41 to support different positions of the transition section 11.

[0043] Reference Figure 2 In order to guide the sliding of the first support rod 42 along the first direction, the retaining platform 3 is provided with a first slide groove 31 along the first direction, and the end of the first support rod 42 away from the support plate 41 is fixedly connected with a first slider 421, and the first slider 421 is located in the first slide groove 31 and slides along the first direction.

[0044] Reference Figure 1 and Figure 2 When a height difference occurs between the transition section 11 and the end of the roadbed 2, a bridge head jumping phenomenon will occur, which may lead to danger. In order to avoid this phenomenon, the first support rod 42 is a telescopic rod structure. Specifically, the fixed section of the first support rod 42 is fixedly connected to the first slider 421, and the movable section of the first support rod 42 is fixedly connected to the fixed portion 411. The end of the movable portion of the first support rod 42 and the fixed portion 411 that are close to each other are fixedly connected and fixed by screws. By adjusting the height of the first support rod 42, the height of the support plate 41 is adjusted, and the support plate 41 supports the transition section 11 to reduce or eliminate the height difference between the transition section 11 and the end of the roadbed 2.

[0045] Reference Figure 2 When the first sliding block 421 slides to a desired position in the first sliding groove 31 , the sliding block and the retaining platform 3 are fixed by the first locking member 43 .

[0046] Reference Figure 2 When the fixed portion 411 of the support plate 41 slides in the first slide groove 31 along the first direction to the end of the retaining platform 3 through the first slider 421, the sliding portion 412 of the sliding support plate 41 can be slid so that the sliding portion 412 supports the area in the middle part of the transition section 11. Specifically, a second slide groove 4111 for accommodating the sliding portion 412 is opened along the first direction on one side of the fixed portion 411 away from the end of the roadbed 2. The sliding portion 412 is located in the second slide groove 4111 and slides along the first direction.

[0047] Reference Figure 2 and Figure 3 Since the sliding portion 412 is located in the second slide groove 4111 of the fixed portion 411, the top of the sliding portion 412 and the top of the fixed portion 411 are not in the same horizontal plane, which makes it impossible for the sliding portion 412 to contact the bottom of the transition section 11. For this reason, a contact plate 44 is provided on the side of the sliding portion 412 close to the transition section 11, and the side of the contact plate 44 away from the sliding portion 412 is flush with the side of the fixed portion 411 away from the first support rod 42. In order not to affect the sliding portion 412 sliding into the first slide groove 31, the contact plate 44 is provided on the side of the sliding portion 412 close to the transition section 11. The plate 44 is connected to the sliding part 412 by sliding along the first direction, and the sliding part 412 is provided with a third sliding groove 4121 for accommodating the contact plate 44 along the second direction; when the sliding part 412 slides out of the second sliding groove 4111, the contact plate 44 is located outside the third sliding groove 4121 and contacts with the transition section 11. When the sliding part 412 needs to slide into the second sliding groove 4111, the contact plate 44 is first slid into the third sliding groove 4121 along the second direction, and then the sliding part 412 is slid into the second sliding groove 4111 along the first direction.

[0048] Reference Figure 3 In order to support the sliding portion 412 of the support plate 41, the support mechanism 4 also includes a second support rod 45, the second support rod 45 is parallel to the second direction, the second support rod 45 is a telescopic rod, and the sliding portion 412 is provided with a fourth slide groove 4122 for sliding the second support rod 45 along the second direction, the fourth slide groove 4122 is connected to the third slide groove 4121, and the movable section of the second support rod 45 passes through the fourth slide groove 4122 and the third slide groove 4121 in sequence and is fixedly connected to the contact plate 44, the movable section of the second support rod 45 is slidably connected to one end close to the fixed section, and the fixed section and the movable section of the second support rod 45 are fixed by screws, and the contact plate 44 is driven to slide in the first direction by adjusting the second support rod 45.

[0049] Reference Figure 3In order to buffer the sliding of the contact plate 44 along the second direction, the support mechanism 4 also includes an elastic member 46 and a mounting seat 47. The elastic member 46 is sleeved on the fixed section of the second support rod 45. The extension direction of the elastic member 46 is parallel to the second direction. The mounting seat 47 is fixedly connected to one end of the fixed section of the second support rod 45 away from the movable section. One end of the elastic member 46 is fixedly connected to the fixed section of the second support rod 45, and the other end is fixedly connected to the mounting seat 47. In this embodiment, the elastic member 46 is a compression spring. When the contact plate 44 moves toward the third slide groove 4121, the elastic member 46 is in a compressed state. When the contact plate 44 moves toward the outside of the third slide groove 4121, the elastic member 46 changes from a compressed state to a normal state.

[0050] Reference Figure 3 The second locking member 53 is used to lock the second support rod 45 and the second support rod 45 is locked.

[0051] Reference Figure 4 In order to support the transition section 11 close to the side of the abutment 1, the abutment 1 has a recess 12 at one end close to the transition section 11, and the end of the transition section 11 is rotatably connected to the abutment 1 at the side wall of the recess 12, and a support seat 6 is provided between the transition section 11 and the bottom wall of the recess 12. In some embodiments, the support seat 6 can be a structure with elastic deformation so that the transition section 11 is supported by the support seat 6.

[0052] The implementation principle of a new type of road-bridge connection structure in the embodiment of the present application is as follows: when in use, the support plate 41 is moved to the required support position along the first direction by the first support rod 42, and the support plate 41 is abutted against the transition section 11 by adjusting the height of the first support rod 42;

[0053] If the middle position of the transition section 11 needs to be supported, the sliding part 412 is slid out to the second sliding groove 4111, and the middle position of the transition section 11 is supported by the contact plate 44 of the sliding part 412, and the contact plate 44 of the sliding part 412 is supported by the fixing rod 51.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A new type of road-bridge connection structure, characterized by: It comprises a bridge abutment (1), a roadbed (2), a retaining platform (3) and a supporting mechanism (4); A transition section (11) is provided between the abutment (1) and the end of the roadbed (2); The retaining platform (3) is located below the transition section (11); The support mechanism (4) is located between the retaining platform (3) and the transition section (11), and comprises a support plate (41), wherein the support plate (41) is slidably connected to the retaining platform (3) along a first direction, and wherein the support plate (41) has a fixed portion (411) and a sliding portion (412), wherein the sliding portion (412) is slidably connected to the fixed portion (411) along the first direction to extend the length of the support plate (41) in the first direction.

2. A new type of road-bridge connection structure according to claim 1, characterized in that: The support plate (41) is slidably connected to the retaining platform (3) along a second direction, and the second direction is perpendicular to the first direction.

3. A new type of road-bridge connection structure according to claim 2, characterized in that: The support mechanism (4) further comprises a first support rod (42), the first support rod (42) being a telescopic rod, the fixed section of the first support rod (42) being slidably connected to the retaining platform (3) along the first direction, the movable section being fixedly connected to the fixed portion (411), and the fixed section and the movable section of the first support rod (42) being slidably connected at one end thereof being close to each other.

4. A new type of road-bridge connection structure according to claim 3, characterized in that: A second sliding groove (4111) for sliding the sliding portion (412) is provided along the first direction on a side of the fixed portion (411) away from the roadbed (2); a contact plate (44) is connected to a side of the sliding portion (412) close to the transition section (11); and a side of the contact plate (44) close to the transition section (11) is arranged flush with a side of the fixed portion (411) close to the transition section (11).

5. A new type of road-bridge connection structure according to claim 4, characterized in that: The contact plate (44) is slidably connected to the sliding portion (412) along the second direction, and the sliding portion (412) is provided with a third sliding groove (4121) for accommodating the contact plate (44) along the second direction.

6. A new type of road-bridge connection structure according to claim 5, characterized in that: The support mechanism (4) also includes a second support rod (45) for driving the contact plate (44) to slide along the second direction, and the sliding portion (412) is provided with a fourth sliding groove (4122) for the second support rod (45) to pass through, and the fourth sliding groove (4122) is connected to the third sliding groove (4121).

7. A new type of road-bridge connection structure according to claim 6, characterized in that: The second support rod (45) is a telescopic rod, and the support mechanism (4) further comprises an elastic member (46) and a mounting seat (47); The mounting seat (47) is located on a side of the sliding portion (412) close to the retaining platform (3); the fixed section of the second support rod (45) is fixedly connected to the mounting seat (47); and the movable section passes through the fourth slide groove (4122) and the third slide groove (4121) in sequence and is then connected to the contact plate (44); The elastic member (46) is sleeved with the fixed section of the second support rod (45), and the elastic member (46) is in contact between the mounting seat (47) and the movable section of the second support rod (45). The elastic member (46) has a force to drive the contact plate (44) to move away from the second slide groove (4111) under recoverable deformation.

8. The new road-bridge connection structure according to claim 7 is characterized in that: It also includes a stabilization component (5), wherein the stabilization component (5) includes a fixing rod (51), a sliding seat (52) and a second locking member (53); The sliding seat (52) is sleeved and slidably connected to the first support rod (42) along the second direction; One end of the fixing rod (51) is rotatably connected to the sliding seat (52), and the other end is rotatably connected to the mounting seat (47), and the rotation axis of the fixing rod (51) is parallel to a third direction, and the third direction is perpendicular to both the first direction and the second direction; The sliding seat (52) is fixedly connected to the first support rod (42) via the second locking member (53).

Images