CN211171571U - Approach and road surface lap joint structure for preventing and treating vehicle bump at bridge head - Google Patents
Approach and road surface lap joint structure for preventing and treating vehicle bump at bridge head Download PDFInfo
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- CN211171571U CN211171571U CN201921725241.7U CN201921725241U CN211171571U CN 211171571 U CN211171571 U CN 211171571U CN 201921725241 U CN201921725241 U CN 201921725241U CN 211171571 U CN211171571 U CN 211171571U
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- butt strap
- road surface
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Abstract
The utility model discloses a prevent approach and road surface overlap joint structure of bridgehead skip, including the abutment, abutment one side is supported there is the bridge, and the opposite side has the bridge back wall, the overlap joint has the bridgehead attachment strap on the bridge back wall, the end and the ordinary concrete road surface of bridgehead attachment strap meet, the bridgehead attachment strap is L form's wrong platform overlap joint structure with ordinary concrete road surface junction, wrong platform overlap joint structure is the structure that ordinary concrete road surface was last under the bridgehead attachment strap, solves the technical problem of the jump phenomenon that the difference produced is subsided to the department of contact of bridgehead attachment strap and rigid road surface among the prior art.
Description
Technical Field
The utility model belongs to the technical field of the building, especially, relate to a control approach and road surface overlap joint structure of bridgehead car skip.
Background
Usually, the abutment back of the bridge is filled too fast, the compaction degree of the filled embankment does not meet the requirement, soft soil at the abutment back is not well treated, and the embankment filled soil is lost and the strength is reduced due to rainwater erosion, so that the abutment back of the bridge is the main reason for embankment settlement at the transition section of the road bridge. The basic design of the bridge abutment is to allow settlement value to implement control design according to specifications, the actually occurring settlement value is smaller than that in design under general conditions, and the embankment behind the bridge abutment is mostly a high fill road section and has larger relative settlement. Therefore, the structural design of the road and bridge transition section is an important means for settlement prevention and control. In the current design, the transition section of the road bridge generally adopts a butt strap structure. The foundation is reasonably treated, the condition of eliminating the settlement of the filled soil body of the embankment is implemented by filling and compacting behind the platform, and the reliable design of the butt strap is an important guarantee for solving the problem of vehicle jump at the bridge head. In engineering practice, the bridge head butt strap is not specially designed generally, the butt strap design is calculated according to a plate supported on an elastic foundation, the butt strap structure can be well suitable for abutment foundation settlement and high fill embankment settlement, a certain transition effect is achieved, but the joint of the tail end of the butt strap and a conventional road surface is often a weak position, and a new vehicle jumping phenomenon is induced due to the neglected design of the position.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a control approach and road surface overlap joint structure of bridgehead car jump solves among the above-mentioned prior art technical problem that the difference produced jumps the car phenomenon with the rigidity road surface department of meeting settlement.
The utility model provides a technical scheme that its technical problem adopted is:
the approach and road surface lap joint structure for preventing and treating the bump at the bridge head comprises a bridge abutment, wherein a bridge is supported on one side of the bridge abutment, a bridge back wall is arranged on the other side of the bridge abutment, a bridge head butt plate is lapped on the bridge back wall, the tail end of the bridge head butt plate is connected with a common concrete road surface, a staggered lap joint structure in an L shape is formed at the joint of the bridge head butt plate and the common concrete road surface, and the staggered lap joint structure is a structure that the bridge head butt plate is arranged on the common concrete road surface below.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead skip, be provided with plain concrete layer and rubble bed course from above-mentioned down in bridgehead attachment plate below and the road surface structural layer respectively.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead skip car, the vertical face of staggered platform overlap joint structure is provided with the expansion joint.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead skip, expansion joint department is provided with a plurality of expansion joint dowel steel, and is a plurality of expansion joint dowel steel level sets up and implants bridgehead attachment and ordinary concrete road surface respectively.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead skip car, the expansion joint surface has the fine grid of glass, the length of the fine grid of glass is twice the overlap joint length of wrong platform overlap joint structure at least.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead car skip, bridge back wall department has the pre-buried anchor bar of vertical attachment strap, the pre-buried anchor bar of attachment strap inserts the bridgehead attachment strap.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead skip car, bridgehead attachment plate is the same with ordinary concrete road surface thickness, the upper portion and the lower part thickness of wrong platform overlap joint structure are the same.
The utility model discloses a prevent and treat approach and road surface overlap joint structure of bridgehead skip car, abutment, bridge, bridgehead attachment strap and ordinary concrete road surface are provided with holistic pitch surface course.
The utility model discloses the beneficial effect who produces is: the bridge head butt strap and the common concrete pavement structure are integrally reinforced through the expansion joint dowel bars, the deformation requirement of the concrete pavement can be met, the cooperative deformation of the butt strap and the concrete pavement is facilitated, the jumping phenomenon is reduced, anchor bars are embedded through the butt strap, the bridge abutment and the bridge head butt strap form a whole, the deformation is coordinated, and the generation of reflection cracks is delayed through the arrangement of a glass fiber grating.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the structure for overlapping approach and road surface for preventing and treating bridge head jumping comprises a bridge abutment 6, wherein one side of the bridge abutment 6 supports a bridge 7, the other side of the bridge abutment is provided with a bridge back wall 5, a bridge head butt strap 1 is overlapped on the bridge back wall 5, the tail end of the bridge head butt strap 1 is connected with a common concrete road surface 10, the joint of the bridge head butt strap 1 and the common concrete road surface 10 is in an L-shaped staggered overlapping structure, and the staggered overlapping structure is a structure that the bridge head butt strap 1 is arranged on the lower common concrete road surface 10.
In the preferred embodiment of the present invention, the plain concrete layer 2 and the gravel cushion layer 3 are respectively disposed below the bridge end attachment plate 1 and in the pavement structure layer 9 from above to below.
In the preferred embodiment of the utility model, the vertical face of staggered platform overlap joint structure is provided with expansion joint 8.
In the preferred embodiment of the utility model, 8 departments of expansion joint are provided with a plurality of expansion joint dowel bars 13, and are a plurality of 13 level settings of expansion joint dowel bars are implanted bridgehead attachment 1 and ordinary concrete road surface 10 respectively.
The utility model discloses a preferred embodiment, 8 surfaces of bloated seam have glass fiber grating 11, glass fiber grating 11's length is twice at least the overlap joint length of wrong platform overlap joint structure.
The utility model discloses an in the preferred embodiment, 5 departments of bridge back wall have vertical butt strap pre-buried anchor bars 4, butt strap pre-buried anchor bars 4 insert bridgehead butt strap 1.
In the preferred embodiment of the present invention, the bridge end attachment plate 1 has the same thickness as the general concrete pavement 10, and the upper and lower portions of the slab staggering and overlapping structure have the same thickness.
In the preferred embodiment of the present invention, the abutment 6, the bridge 7, the bridge head butt strap 1 and the common concrete pavement 10 are provided with an integral asphalt surface layer 12 on the surface.
The expansion joint dowel bar 13 is made of smooth round steel bars, and expansion joint plates are embedded in the expansion joints 8.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (8)
1. The structure is characterized by comprising an abutment (6), wherein a bridge (7) is supported on one side of the abutment (6), a bridge back wall (5) is arranged on the other side of the abutment, an abutment butt strap (1) is lapped on the bridge back wall (5), the tail end of the abutment butt strap (1) is connected with a common concrete pavement (10), the joint of the abutment butt strap (1) and the common concrete pavement (10) is an L-shaped staggered lap joint structure, and the staggered lap joint structure is a structure that the abutment butt strap (1) is arranged on the common concrete pavement (10) below.
2. The structure of claim 1, wherein a plain concrete layer (2) and a gravel cushion layer (3) are respectively arranged below the bridge end butt strap (1) and in the pavement structure layer (9) from top to bottom.
3. The structure of claim 1, wherein the vertical surface of the staggered platform overlapping structure is provided with an expansion joint (8).
4. The structure of claim 3, wherein a plurality of expansion joint force-transmitting rods (13) are arranged at the expansion joint (8), and the expansion joint force-transmitting rods (13) are horizontally arranged and respectively implanted into the bridge head butt strap (1) and the common concrete pavement (10).
5. The structure of claim 3, wherein the surface of the expansion joint (8) is provided with a glass fiber grating (11), and the length of the glass fiber grating (11) is at least twice of the overlapping length of the staggered overlapping structure.
6. The structure for overlapping a guide way and a road surface for preventing and treating bump at the bridge head according to claim 1, wherein a vertical butt strap embedded anchor bar (4) is arranged at the back wall (5) of the bridge, and the butt strap embedded anchor bar (4) is inserted into the butt strap (1).
7. The structure of claim 1, wherein the thickness of the bridge end butt strap (1) is the same as that of the common concrete pavement (10), and the thickness of the upper part and the lower part of the staggered overlapping structure is the same.
8. The structure of claim 1, wherein the abutment (6), the bridge (7), the bridge end butt strap (1) and the common concrete pavement (10) are provided with an integral asphalt surface layer (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725241.7U CN211171571U (en) | 2019-10-15 | 2019-10-15 | Approach and road surface lap joint structure for preventing and treating vehicle bump at bridge head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725241.7U CN211171571U (en) | 2019-10-15 | 2019-10-15 | Approach and road surface lap joint structure for preventing and treating vehicle bump at bridge head |
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| Publication Number | Publication Date |
|---|---|
| CN211171571U true CN211171571U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921725241.7U Active CN211171571U (en) | 2019-10-15 | 2019-10-15 | Approach and road surface lap joint structure for preventing and treating vehicle bump at bridge head |
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| CN (1) | CN211171571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351567A (en) * | 2021-12-31 | 2022-04-15 | 安徽省交通规划设计研究总院股份有限公司 | Novel road and bridge connection structure and construction method |
-
2019
- 2019-10-15 CN CN201921725241.7U patent/CN211171571U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114351567A (en) * | 2021-12-31 | 2022-04-15 | 安徽省交通规划设计研究总院股份有限公司 | Novel road and bridge connection structure and construction method |
| CN114351567B (en) * | 2021-12-31 | 2024-04-26 | 安徽省交通规划设计研究总院股份有限公司 | Road bridge connection structure and construction method |
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