CN203429555U - Shallow-buried type expansion joint structure - Google Patents
Shallow-buried type expansion joint structure Download PDFInfo
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- CN203429555U CN203429555U CN201320533191.9U CN201320533191U CN203429555U CN 203429555 U CN203429555 U CN 203429555U CN 201320533191 U CN201320533191 U CN 201320533191U CN 203429555 U CN203429555 U CN 203429555U
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- joint structure
- reinforcing bar
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- bar
- crossbeam
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Abstract
The utility model relates to the technical field of bridge supports and discloses a shallow-buried type expansion joint structure which comprises a cross beam. The two ends of the cross beam are respectively provided with a displacement box, edge beam steel is arranged on the outer side of the upper end of each displacement box, middle beam steel is arranged on the cross beam, the height of each displacement box is smaller than 20cm, and rubber water rods are arranged between the edge beam steel and the middle beam steel. The height of each displacement box is smaller than 20cm, the cross beam can not be damaged in the constructing and bearing process, the overall expansion joint structure is in a modular mode, the expansion joint structure can not damage a bridge structure during installation, and can not easily loose after being mounted, and car accidents can be reduced.
Description
Technical field
The utility model relates to bridge pad technical field, has related in particular to a kind of shallow embedding formula expanded joint structure.
Background technology
Bridge expanssion joint refers to as meeting the requirement of bridge floor distortion, conventionally between two beam-ends, shrinkage joint is set between beam-ends and abutment or in the articulated position of bridge.When the dilatation amount of bridge surpasses 50mm, often adopt steel stretching device.This stretching device is often because beam-ends rotation or deflection deformation produce panting action when vehicle crosses, and noise is large, and easily makes structural failure.Therefore, need to adopt the device that is provided with bolt spring to fix sliding steel plate, to reduce, bounce and noise, the structure relative complex at this shrinkage joint, the displacement case height of bridge expanssion joint, generally all in 30cm left and right, if Tai Gaotai is heavy, can destroy crossbeam now.
Summary of the invention
The utility model, for shortcoming of the prior art, provides a kind of shallow embedding formula expanded joint structure.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Shallow embedding formula expanded joint structure, comprises crossbeam, and crossbeam two ends are respectively equipped with displacement case, and outside, displacement case upper end is provided with side bar steel, and crossbeam is provided with middle joist steel, and the height of displacement case is less than 20cm, between side bar steel and middle joist steel, is provided with rubber water-proof bar.Side bar steel and the central sill steel capital are to adopt stainless steel to make, and in the use of accumulating over a long period, are not easy to get rusty like this.The height of displacement case is less than 20cm, when installation and carrying, can not destroy crossbeam, and side bar steel is connected by rubber water-proof bar with middle joist steel.
As preferably, it is inner that crossbeam extends to displacement case, between going to the bottom, is provided with asphalt mixture surfacing on crossbeam and displacement case.Asphalt mixture surfacing plays fixed cross beam and displacement case, between asphalt mixture surfacing is set, shallow embedding formula expanded joint structure just can not be subjected to displacement in the process of using.
As preferably, rubber water-proof bar is arranged to V-type, and rubber water-proof bar two ends are connected with middle joist steel with side bar steel respectively, and rubber water-proof bar mid portion is lower than the horizontal plane at place, two ends.
As preferably, between displacement case and crossbeam, be provided with spring stack, on spring stack, cover has holddown spring, and spring stack is provided with boss in the one end near crossbeam, and the other end is provided with steel plate, and holddown spring one end is connected with boss, other end junction steel plate.
As preferably, displacement case outside is provided with anchor bolt.Anchor bolt is used for whole expanded joint structure and ground to fix.
As preferably, each side of displacement case is at least provided with an anchor bolt.Preferred scheme is at upper side, leading flank, and trailing flank, is all provided with respectively anchor bolt on outermost side, like this, whole front, rear, left and right, downside just can be directly fixed in road surface or bridge floor, can whole fixation.
As preferably, displacement case outside is provided with the first reinforcing bar.The first reinforcing bar is used for extending to the inside, road surface, plays fixing effect.
As preferably, below side bar steel, be provided with short beam, short beam connects the first U-shaped reinforcing bar, and first U-shaped reinforcing bar one end is connected with side bar steel, in the first U-shaped reinforcing bar, is installed with the second reinforcing bar.The first U-shaped reinforcing bar is used for fixing side bar steel and short beam, is designed to U-shaped structure, like this, in the process of using, can not allow side bar steel and short beam generation deformation, the increase life-span.
As preferably, the quantity of the second reinforcing bar is at least one.
As preferably, the second reinforcing bar outside cover has the second U-shaped reinforcing bar, and the sealed end of the second U-shaped reinforcing bar contacts with the second reinforcing bar, and the openend of the second U-shaped reinforcing bar extends to inside, road surface.The second U-shaped reinforcing bar plays the effect of supporting whole shallow embedding formula expanded joint structure.
The utility model, owing to having adopted above technical scheme, has significant technique effect:
The height of the utility model displacement case is less than 20cm, when installation and carrying, can not destroy crossbeam, integral body has adopted the structure at modulus type shrinkage joint, and this structure is not damaged the structure of bridge when mounted, in installation, be difficult for afterwards occurring to become flexible the generation that can cut down traffic accidents.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Fig. 4 is the partial enlarged drawing of structure of the present utility model.
The toponym that in above accompanying drawing, each number designation refers to is as follows: 1-crossbeam, 2-displacement case, 3-side bar steel, 4-middle joist steel, 5-rubber water-proof bar, 6-asphalt mixture surfacing, 7-spring stack, 8-holddown spring, 9-boss, 10-steel plate, 11-anchor bolt, the 12-the first reinforcing bar, 13-short beam, the 14-the first U-shaped reinforcing bar, the 15-the second reinforcing bar, the 16-the second U-shaped reinforcing bar.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
Shallow embedding formula expanded joint structure, as Fig. 1, shown in 2, comprise crossbeam 1, crossbeam 1 two ends are respectively equipped with displacement case 2, displacement case 2 outsides, upper end are provided with side bar steel 3, crossbeam 1 is provided with middle joist steel 4, the height of displacement case 2 is less than 20cm, between side bar steel 3 and middle joist steel 4, be provided with rubber water-proof bar 5, crossbeam 1 extends to displacement case 2 inside, between going to the bottom on crossbeam 1 and displacement case 2, be provided with asphalt mixture surfacing 6, rubber water-proof bar 5 is arranged to V-type, rubber water-proof bar 5 two ends are connected with middle joist steel 4 with side bar steel 3 respectively, rubber water-proof bar 5 mid portions are lower than the horizontal plane at place, two ends, between displacement case 2 and crossbeam 1, be provided with spring stack 7, on spring stack 7, cover has holddown spring 8, spring stack 7 is provided with boss 9 in the one end near crossbeam 1, the other end is provided with steel plate 10, holddown spring 8 one end are connected with boss 9, other end junction steel plate 10, displacement case 2 outsides are provided with anchor bolt 11, preferred scheme is at upper side, leading flank, trailing flank, on outermost side, be all provided with respectively anchor bolt 11.Displacement case 2 outsides are provided with the first reinforcing bar 12.
Shallow embedding formula expanded joint structure mid portion, as shown in Figure 3, side bar steel 3 belows are provided with short beam 13, and short beam 13 connects the U-shaped reinforcing bar of the first U-shaped reinforcing bar 14, the first 14 one end and is connected with side bar steel 3, in the first U-shaped reinforcing bar 14, is installed with the second reinforcing bar 15.Optimal case is two, and one is arranged on U-shaped sealing place, and another root is arranged on the edge of sealing place.The second reinforcing bar 15 outside covers have the sealed end of the U-shaped reinforcing bar 16 of the second U-shaped reinforcing bar 16, the second to contact with the second reinforcing bar 15, and the openend of the second U-shaped reinforcing bar 16 extends to inside, road surface.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (10)
1. shallow embedding formula expanded joint structure, comprise crossbeam (1), crossbeam (1) two ends are respectively equipped with displacement case (2), outside, displacement case (2) upper end is provided with side bar steel (3), crossbeam (1) is provided with middle joist steel (4), it is characterized in that: the height of displacement case (2) is less than 20cm, between side bar steel (3) and middle joist steel (4), be provided with rubber water-proof bar (5).
2. shallow embedding formula expanded joint structure according to claim 1, is characterized in that: crossbeam (1) extends to displacement case (2) inside, the upper base of crossbeam (1) and displacement case (2) and go to the bottom between be provided with asphalt mixture surfacing (6).
3. shallow embedding formula expanded joint structure according to claim 1, it is characterized in that: rubber water-proof bar (5) is arranged to V-type, rubber water-proof bar (5) two ends are connected with middle joist steel (4) with side bar steel (3) respectively, and rubber water-proof bar (5) mid portion is lower than the horizontal plane at place, two ends.
4. shallow embedding formula expanded joint structure according to claim 1, it is characterized in that: between displacement case (2) and crossbeam (1), be provided with spring stack (7), the upper cover of spring stack (7) has holddown spring (8), spring stack (7) is provided with boss (9) in the one end near crossbeam (1), the other end is provided with steel plate (10), holddown spring (8) one end is connected with boss (9), other end junction steel plate (10).
5. shallow embedding formula expanded joint structure according to claim 1, is characterized in that: displacement case (2) outside is provided with anchor bolt (11).
6. shallow embedding formula expanded joint structure according to claim 5, is characterized in that: each side of displacement case (2) is at least provided with an anchor bolt (11).
7. shallow embedding formula expanded joint structure according to claim 1, is characterized in that: displacement case (2) outside is provided with the first reinforcing bar (12).
8. shallow embedding formula expanded joint structure according to claim 1, it is characterized in that: side bar steel (3) below is provided with short beam (13), short beam (13) connects the first U-shaped reinforcing bar (14), first U-shaped reinforcing bar (14) one end is connected with side bar steel (3), in the first U-shaped reinforcing bar (14), is installed with the second reinforcing bar (15).
9. shallow embedding formula expanded joint structure according to claim 8, is characterized in that: the quantity of the second reinforcing bar (15) is at least one.
10. shallow embedding formula expanded joint structure according to claim 8, it is characterized in that: the second reinforcing bar (15) outside cover has the second U-shaped reinforcing bar (16), the sealed end of the second U-shaped reinforcing bar (16) contacts with the second reinforcing bar (15), and the openend of the second U-shaped reinforcing bar (16) extends to inside, road surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533191.9U CN203429555U (en) | 2013-08-29 | 2013-08-29 | Shallow-buried type expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533191.9U CN203429555U (en) | 2013-08-29 | 2013-08-29 | Shallow-buried type expansion joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203429555U true CN203429555U (en) | 2014-02-12 |
Family
ID=50058603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320533191.9U Expired - Fee Related CN203429555U (en) | 2013-08-29 | 2013-08-29 | Shallow-buried type expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203429555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562926A (en) * | 2014-12-25 | 2015-04-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge telescopic device anchoring structure |
-
2013
- 2013-08-29 CN CN201320533191.9U patent/CN203429555U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562926A (en) * | 2014-12-25 | 2015-04-29 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge telescopic device anchoring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140829 |
|
| EXPY | Termination of patent right or utility model |