CN202787068U - Large displacement highway bridge expansion and contraction device - Google Patents
Large displacement highway bridge expansion and contraction device Download PDFInfo
- Publication number
- CN202787068U CN202787068U CN 201220514465 CN201220514465U CN202787068U CN 202787068 U CN202787068 U CN 202787068U CN 201220514465 CN201220514465 CN 201220514465 CN 201220514465 U CN201220514465 U CN 201220514465U CN 202787068 U CN202787068 U CN 202787068U
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- profile shapes
- side profile
- displacement control
- control lever
- profiled bars
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Abstract
The utility model belongs to the technical field of bridge expansion and contraction devices and discloses a large displacement highway bridge expansion and contraction device. The large displacement highway bridge expansion and contraction device is characterized by comprising two side profiled bars located on two sides and at least two middle profiled bars located between the two side profiled bars, supporting beams are arranged below the side profiled bars and the middle profiled bars, sealing rubber belts are arranged between the side profiled bars and the middle profiled bars and between each two adjacent middle profiled bars, and the side profiled bars and the middle profiled bars are connected through a displacement control rod; and the displacement control rod and the side profiled bars are skewed, and the displacement control rod is rotatably connected with the side profiled bars and the middle profiled bars through a connection mechanism. According to the large displacement highway bridge expansion and contraction device, the displacement control is uniform, vehicle jumping phenomena are avoided, the service life of the expansion and contraction device is prolonged, and the maintenance is convenient.
Description
Technical field
The utility model belongs to the shrinkage joint technical field, relates in particular to the big displacement quantity Expansion Units for Highway Bridges.
Background technology
China is very large in the highway construction field scale of investment, and bridge engineering is a lot.The stretching device that uses on the bridge especially Large Displacement Expansion Joints of the grand bridges uses such as large-span continuous beam, cable stayed bridge, suspension bridge is the vitals of bridge, in case damage, has a strong impact on traffic, suffers heavy losses.The stretching device that uses on the bridge at present, the overwhelming majority are to adopt the displacement of macromolecule spring block, the middle profile shapes of chain control to guarantee that each slit of stretching device changes.Little displacement stretching device adopts the said structure problem little, but for the larger stretching device of displacement, product exists the slit to change inhomogeneous problem at present, and the variation inhomogeneous vehicle that caused in slit is being located by stretching device slit greatly, vehicle " jumping car " is serious, not only the stretching device structure has been caused very large infringement, shortened the application life of stretching device, and bridge itself has also been caused very large damage.
The utility model content
The technical problem that the utility model solves just provide a kind of displacement control evenly, long service life, easy to maintenance, big displacement quantity Expansion Units for Highway Bridges that integral rigidity is large.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: comprise two side profile shapess and at least two middle profile shapess between described two side profile shapess on both sides, described side profile shapes and described middle profile shapes below are provided with brace summer, described side profile shapes and described in the middle of between the profile shapes and adjacently be provided with the caulking gum band between the profile shapes in the middle of described, described side profile shapes be connected profile shapes and connect by the displacement control lever; This displacement control lever and described side profile shapes oblique, described displacement control lever and described side profile shapes and middle profile shapes are rotatably connected by bindiny mechanism.
Its additional technical feature is:
Be provided with support beam-ends case at described brace summer and side profile shapes junction; Be provided with control rod end case at described displacement control lever and side profile shapes junction;
Described displacement control lever is many that arrange along side profile shapes axial direction, and adjacent displacement control lever is " eight " word or falls " eight " word arrangement.
The big displacement quantity Expansion Units for Highway Bridges that the utility model provides, compare with prior art and to have the following advantages: one, owing to comprise two side profile shapess and at least two middle profile shapess between described two side profile shapess on both sides, described side profile shapes and described middle profile shapes below are provided with brace summer, described side profile shapes and described in the middle of between the profile shapes and adjacently be provided with the caulking gum band between the profile shapes in the middle of described, described side profile shapes be connected profile shapes and connect by the displacement control lever; This displacement control lever and described side profile shapes oblique, described displacement control lever and described side profile shapes and middle profile shapes are rotatably connected by bindiny mechanism, when the bridge beam body on stretching device both sides is extended to both sides by variations in temperature, the side profile shapes with the beam body to two side shiftings, driving the displacement control lever swings, it is large that the angle of displacement control lever and side profile shapes and middle profile shapes becomes, thereby drive equidistant elongation between side profile shapes and the middle profile shapes, equally, when the bridge beam body on stretching device both sides is subjected to variations in temperature to intermediate compression, the side profile shapes is mobile to the inside with the beam body, driving the displacement control lever swings, the angle of displacement control lever and side profile shapes and middle profile shapes diminishes, thereby drive equidistant compression between side profile shapes and the middle profile shapes, displacement control is more even, has avoided vehicle " jumping car " phenomenon, prolonged the application life of stretching device, safeguarded convenient; Its two owing to be provided with support beam-ends case in described brace summer and side profile shapes junction; Be provided with control rod end case at described displacement control lever and side profile shapes junction, brace summer and displacement control lever are played a protective role, prolonged the application life of brace summer and displacement control lever; Its three because described displacement control lever be many that arrange along side profile shapes axial direction, adjacent displacement control lever is " eight " word or falls " eight " word arrangement, middle profile shapes is stressed more even, has avoided the inclination of side profile shapes and middle profile shapes.
Description of drawings
Fig. 1 is the structural representation of big displacement quantity Expansion Units for Highway Bridges;
Fig. 2 is the A--A sectional drawing of Fig. 1.
The parts that each mark is corresponding in the accompanying drawing are: 1, side profile shapes; 2, side profile shapes; 3, middle profile shapes; 4, brace summer; 5, caulking gum band; 6, displacement control lever; 7, bindiny mechanism; 8 control rod end casees; 9, support the beam-ends case.
The specific embodiment
The structure of the big displacement quantity Expansion Units for Highway Bridges that the utility model is proposed below in conjunction with accompanying drawing is described further.
As depicted in figs. 1 and 2, be the structural representation of big displacement quantity Expansion Units for Highway Bridges.Its structure comprises two the side profile shapess 1,2 that are positioned at both sides, between side profile shapes 1,2 with profile shapess 3 in the middle of at least two, side profile shapes 1,2 and middle profile shapes 3 belows be provided with brace summer 4, side profile shapes 1,2 and middle profile shapes 3 between and adjacent in the middle of be provided with caulking gum band 5 between the profile shapes 3.Side profile shapes 1,2 be connected profile shapes 3 and connect by displacement control lever 6, this displacement control lever 6 and side profile shapes 1,2 obliques, displacement control lever 6 and side profile shapes 1,2 and middle profile shapes 3 be rotatably connected by bindiny mechanism 7.Bindiny mechanism 7 can adopt the known mechanisms such as bearing pin and displacement control lever hanging holder set, as long as when displacement control lever 6 rotates, guarantees that side profile shapes 1,2 and middle profile shapes 3 get final product along 6 slips of displacement control lever.When stretching device is extended by the temperature rising to both sides in bridge beam body, side profile shapes 1,2 with the beam body to two side shiftings, driving displacement control lever 6 swings, displacement control lever 6 and side profile shapes 1,2 and the angle of middle profile shapes 3 become large, thereby drive side profile shapes 1,2 and middle profile shapes 3 between equidistant elongation, equally, when stretching device is subjected to temperature to reduce to intermediate compression in bridge beam body, side profile shapes 1,2 is mobile to the inside with the beam body, driving displacement control lever 6 swings, the angle of displacement control lever and side profile shapes and middle profile shapes diminishes, thereby drive equidistant compression between side profile shapes and the middle profile shapes, so that side profile shapes 1,2 and middle profile shapes 3 between the gap more even, avoided vehicle " jumping car " phenomenon, prolonged the application life of stretching device, safeguarded convenient.
Be provided with support beam-ends case 9 in brace summer 4 and side profile shapes 1,2 junctions; Be provided with control rod end case 8 in displacement control lever 6 and side profile shapes 1,2 junctions, brace summer 4 and displacement control lever 6 are played a protective role, prolonged the application life of brace summer 4 and displacement control lever 6.
Displacement control lever 6 is many that arrange along side profile shapes 1 axial direction, and adjacent displacement control lever 6 is " eight " word or falls " eight " word arrangement, middle profile shapes 3 is stressed more even, has avoided side profile shapes 1,2 and the inclination of middle profile shapes 3.
Protection domain of the present utility model not only is confined to above-described embodiment, as long as structure is identical with the utility model big displacement quantity Expansion Units for Highway Bridges structure, just drops on the scope of the utility model protection.
Claims (3)
1. big displacement quantity Expansion Units for Highway Bridges, comprise two side profile shapess and at least two middle profile shapess between described two side profile shapess on both sides, described side profile shapes and described middle profile shapes below are provided with brace summer, described side profile shapes and described in the middle of between the profile shapes and adjacently be provided with the caulking gum band between the profile shapes in the middle of described, it is characterized in that: described side profile shapes be connected profile shapes and connect by the displacement control lever; This displacement control lever and described side profile shapes oblique, described displacement control lever and described side profile shapes and middle profile shapes are rotatably connected by bindiny mechanism.
2. big displacement quantity Expansion Units for Highway Bridges according to claim 1 is characterized in that: be provided with support beam-ends case at described brace summer and side profile shapes junction; Be provided with control rod end case at described displacement control lever and side profile shapes junction.
3. big displacement quantity Expansion Units for Highway Bridges according to claim 1 is characterized in that: described displacement control lever is many of arranging along side profile shapes axial direction, and adjacent displacement control lever is " eight " word or falls " eight " word arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514465 CN202787068U (en) | 2012-10-09 | 2012-10-09 | Large displacement highway bridge expansion and contraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220514465 CN202787068U (en) | 2012-10-09 | 2012-10-09 | Large displacement highway bridge expansion and contraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202787068U true CN202787068U (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220514465 Expired - Fee Related CN202787068U (en) | 2012-10-09 | 2012-10-09 | Large displacement highway bridge expansion and contraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202787068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934549A (en) * | 2013-11-28 | 2016-09-07 | 毛勒桑斯工程有限两合公司 | Bridging apparatus |
-
2012
- 2012-10-09 CN CN 201220514465 patent/CN202787068U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934549A (en) * | 2013-11-28 | 2016-09-07 | 毛勒桑斯工程有限两合公司 | Bridging apparatus |
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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: 20130313 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |