CN218508238U - Expansion device for bridge widening - Google Patents
Expansion device for bridge widening Download PDFInfo
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- CN218508238U CN218508238U CN202222999540.8U CN202222999540U CN218508238U CN 218508238 U CN218508238 U CN 218508238U CN 202222999540 U CN202222999540 U CN 202222999540U CN 218508238 U CN218508238 U CN 218508238U
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- bridge
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- bracing piece
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- 239000000945 filler Substances 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 20
- 230000003139 buffering effect Effects 0.000 claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 abstract description 16
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model belongs to the technical field of the bridge construction technique and specifically relates to a bridge is widened and is used telescoping device is related to, including relative new bridge and the old bridge that sets up, the top of new bridge and old bridge all is equipped with the mounting groove, is equipped with the attenuator in the mounting groove, and the top of attenuator is equipped with the extension board, connects through the extension board between new bridge and the old bridge, and the attenuator includes the buffer cylinder and inserts the bracing piece of establishing in the buffer cylinder, and the inside packing of buffer cylinder has the elastoplasticity filler, and the one end activity of bracing piece is buried underground in the elastoplasticity filler to through the interior wall connection of buffering subassembly with the buffer cylinder, the other end and the extension board of bracing piece are connected. The technical scheme of the utility model through be equipped with the buffering subassembly between bracing piece and buffer cylinder, make its and the cooperation of elastoplasticity filler, can carry out the damping buffering to the extension board better, solved current telescoping device and lead to its damping effect to worsen's problem because of long-term the use, improved the damping effect of telescoping device, ensured the roughness of new and old bridge.
Description
Technical Field
The utility model belongs to the technical field of the bridge construction technique and specifically relates to a bridge is widened and is used telescoping device is related to.
Background
Bridge widening is a common method for old bridge reconstruction, but old and old roads are widened and reconstructed, when the old and new bridges are bridged together, because the shrinkage and creep of the old and new bridges are inconsistent, the concrete of the new bridge shrinks and creeps, and a large additional stress can be generated on the old bridge, therefore, in practical application, a widening mode that the old and new bridges are not connected with each other up and down is generally adopted, a telescopic device is longitudinally arranged between the old and new bridges to ensure the normal passage of a road surface, the mode can ensure that the whole stress of the bridge is uniform, the upper and lower part structures of the old and new bridges are not influenced mutually, the construction difficulty is low, and the application is very wide.
In order to ensure that vehicles can smoothly and comfortably pass through the joints of the beam bodies on the two sides of the new bridge and the old bridge, the longitudinal expansion device for connecting the new bridge and the old bridge is particularly critical, and the Chinese patent CN216663868U discloses an expansion device for bridge widening, wherein two ends of a cover plate of the expansion device are connected with the flange positions of the beam bodies of the new bridge and the old bridge through dampers based on elastic-plastic filler buffering, so that the expansion device is effectively suitable for uneven settlement of the beam bodies on the two sides of the new bridge and the old bridge and inconsistent height and folding angle changes generated under the action of concrete creep, temperature, wind power, load and the like, and the joints of the beam bodies on the two sides of the new bridge and the old bridge are in plane smooth transition connection.
However, the above-mentioned expansion device for bridge widening only performs damping by using the elastic-plastic filler, and under the long-term impact of the vehicle, the elasticity and plasticity of the elastic-plastic filler become poor, so that the damping effect of the expansion device is affected, and the negative effects caused by the height difference of the new and old bridge decks cannot be well eliminated, and further the flatness of the new and old bridge decks cannot be ensured.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bridge widens and uses telescoping device, this telescoping device simple structure, safe and reliable have solved current telescoping device and have leaded to its buffering damping effect problem that worsens because of long-term the use, have improved telescoping device's buffering damping effect greatly, have eliminated the negative effects that new and old bridge floor difference in height brought, have ensured the roughness of new and old bridge.
The utility model provides a bridge widens and uses telescoping device, including relative new bridge and the old bridge that sets up, the top of new bridge and the top of old bridge all are equipped with the mounting groove, be equipped with a plurality of along its length direction evenly distributed's attenuator in the mounting groove, the top of attenuator is equipped with the extension board, connect through the extension board between new bridge and the old bridge, and the top of extension board with the top of new bridge and the top of old bridge flush;
the attenuator includes the buffer cylinder and inserts and establish bracing piece in the buffer cylinder, the buffer cylinder is kept away from the one end of bracing piece with the mounting groove is connected, the inside packing of buffer cylinder has the elastoplasticity filler, the one end activity of bracing piece bury underground in the elastoplasticity filler to through the buffering subassembly with the interior wall connection of buffer cylinder, the other end of bracing piece with the extension board is connected.
Furthermore, one end of the supporting rod, which is positioned in the elastic-plastic filler, is connected with a horizontally arranged limiting plate, and the limiting plate is connected with the bottom of the buffer cylinder through the buffer component.
Furthermore, the buffer assembly comprises a vertically arranged rubber column, and two ends of the rubber column are respectively connected with the limiting plate and the bottom of the buffer cylinder;
the two sides of the rubber column are respectively provided with a first buffer spring, and the two ends of the first buffer springs are respectively connected with the limiting plate and the bottom of the buffer cylinder.
Furthermore, a buffer cushion is arranged on one side, away from the support rod, of the limiting plate, and one end, away from the buffer cylinder, of the rubber column is connected with the buffer cushion;
the rubber column with be equipped with the rubber strip that the slope set up between the first buffer spring, the both ends of rubber strip respectively with the blotter with the bottom of buffer cylinder is connected.
Furthermore, an elastic column is horizontally arranged between the supporting rod and the inner side wall of the buffer cylinder, and two ends of the elastic column are respectively connected with the supporting rod and the inner side wall of the buffer cylinder.
Furthermore, second buffer springs are respectively arranged on two sides of the elastic column, and two ends of each second buffer spring are respectively connected with the supporting rod and the inner side wall of the buffer cylinder.
Further, the buffer cylinder is far away from the one end of mounting groove is equipped with the through hole rather than inside intercommunication, the bracing piece is kept away from the one end of limiting plate passes the through hole, and with the extension board is connected.
Furthermore, the one end that the limiting plate was kept away from to the bracing piece is connected with the mounting panel of level setting, the mounting panel with connect through set screw between the extension board.
Furthermore, one end of the buffer cylinder, which is far away from the supporting rod, is connected with a horizontally arranged fixing plate, and the fixing plate is connected with the mounting groove through a mounting screw rod.
Furthermore, a water stop is arranged between the new bridge and the old bridge, and two ends of the water stop are respectively connected with the new bridge and the old bridge.
The utility model has the advantages that:
the technical scheme of the utility model through be equipped with the buffering subassembly between bracing piece and buffer cylinder, make its and the cooperation of elastoplasticity filler, can carry out the damping buffering to the removal of extension board and bracing piece better, improve the damping effect of telescoping device greatly, solved current telescoping device and lead to its damping effect problem that worsens because of long-term the use, eliminated the negative effects that new and old bridge floor difference in height brought, ensured the roughness of new and old bridge.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a telescopic device for widening a bridge in embodiment 1 of the present invention;
fig. 2 is a cross-sectional view of a bridge widening expansion device according to embodiment 1 of the present invention;
fig. 3 is a sectional view of a damper according to embodiment 1 of the present invention.
Description of reference numerals:
1-old bridge, 2-new bridge, 3-water stop, 4-mounting groove, 5-extension plate, 6-buffer cylinder, 7-fixing plate, 8-supporting rod, 9-mounting plate, 10-fixing screw, 11-mounting screw, 12-through hole, 13-limiting plate, 14-first buffer spring, 15-rubber column, 16-rubber strip, 17-buffer pad, 18-elastic column, 19-second buffer spring and 20-elastoplastic filler.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be 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.
Example 1
Shown by fig. 1 to 3, a bridge widens and uses telescoping device, including relative old bridge 1 and new bridge 2 that sets up, be equipped with waterstop 3 between old bridge 1 and the new bridge 2, the both ends of waterstop 3 are connected with old bridge 1 and new bridge 2 respectively, the top of old bridge 1 and the top of new bridge 2 are equipped with mounting groove 4 respectively, the inside of mounting groove 4 is equipped with a plurality of along its length direction evenly distributed's attenuator, the attenuator includes buffer tube 6 and inserts the bracing piece 8 of establishing in buffer tube 6, buffer tube 6 keeps away from the one end of bracing piece 8 and is connected with mounting groove 4, the inside packing of buffer tube 6 has elastoplasticity filler 20, the one end activity of bracing piece 8 is buried in elastoplasticity filler 20 underground, the other end of bracing piece 8 is connected with extension board 5, connect through extension board 5 between old bridge 1 and the new bridge 2, and the top of extension board 5 flushes with the top of old bridge 1 and the top of new bridge 2 respectively.
Through set up extension board 5 between old bridge 1 and new bridge 2, utilize extension board 5 to realize old bridge 1 and new bridge 2's connection, and the both ends of extension board 5 are connected with the mounting groove 4 at old bridge 1 and new bridge 2 top through the attenuator based on buffer assembly and elastoplasticity filler 20 respectively, utilize the cooperation between buffer assembly and the elastoplasticity filler 20, can carry out damping buffering to extension board 5 and bracing piece 8's removal better, the damping effect of buffering of telescoping device has been improved greatly, the problem that current telescoping device leads to its damping effect to worsen because of long-term the use has been solved, eliminate the negative effects that old bridge 1 and new bridge 2 bridge floor difference in height brought, the roughness of old bridge 1 and new bridge 2 has been ensured, in addition, still be provided with waterstop 3 between old bridge 1 and the new bridge 2, so that discharge the water on the bridge floor, waterstop 3 sets up for the conventional structure in the widening field, concrete structure and action principle do not strictly limit here.
One end that the bracing piece 8 is located elastoplasticity filler 20 is connected with the limiting plate 13 that the level set up, one side that bracing piece 8 was kept away from to limiting plate 13 is equipped with blotter 17, blotter 17 is made by rubber materials, the buffering subassembly includes vertical setting rubber column 15 between blotter 17 and buffer tube 6 bottom, the both ends of rubber column 15 are connected with blotter 17 and buffer tube 6's bottom respectively, the both sides of rubber column 15 are equipped with first buffer spring 14 respectively, first buffer spring 14's both ends are connected with limiting plate 13 and buffer tube 6's bottom respectively, be equipped with the rubber strip 16 that the slope set up between rubber column 15 and the first buffer spring 19, the both ends of rubber strip 16 are connected with blotter 17 and buffer tube 6's bottom respectively, be equipped with the elasticity post 18 that the level set up between the inside wall of bracing piece 8 and buffer tube 6 respectively, the both ends of elasticity post 18 are connected with the inside wall of bracing piece 8 and buffer tube 6 respectively, the both sides of elasticity post 18 are equipped with second buffer spring 19 respectively, the both ends of second buffer spring 19 are connected with the inside wall of bracing piece 8 and buffer tube 6 respectively.
The one end that the bracing piece 8 was kept away from to the buffer cylinder 6 is connected with the fixed plate 7 that the level set up, is connected through mounting screw 11 between fixed plate 7 and the mounting groove 4, and the one end that the mounting groove 4 was kept away from to the buffer cylinder 6 is equipped with the through hole 12 rather than inside intercommunication, and the one end that limiting plate 13 was kept away from to bracing piece 8 passes through hole 12 to be connected with the mounting panel 9 that the level set up, connect through fixing screw 10 between mounting panel 9 and the extension board 5.
Realize being connected of fixed plate 7 and mounting groove 4 through mounting screw 11, so that install buffer cylinder 6 on mounting groove 4, the one end that buffer cylinder 6 kept away from mounting groove 4 is equipped with through hole 12, so that the one end that limiting plate 13 was kept away from to messenger's bracing piece 8 stretches out from the inside of buffer cylinder 6, and be connected with extension board 5 through mounting panel 9 and clamping screw 10, and the diameter of through hole 12 is less than the length of limiting plate 13, avoids limiting plate 13 to wear out in buffer cylinder 6.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A telescopic device for bridge widening is characterized by comprising a new bridge and an old bridge which are oppositely arranged, wherein mounting grooves are formed in the top of the new bridge and the top of the old bridge, a plurality of dampers which are uniformly distributed along the length direction of the mounting grooves are arranged in the mounting grooves, an extension plate is arranged at the top of each damper, the new bridge and the old bridge are connected through the extension plate, and the top of each extension plate is flush with the top of the new bridge and the top of the old bridge;
the attenuator includes the buffer cylinder and inserts and establish bracing piece in the buffer cylinder, the buffer cylinder is kept away from the one end of bracing piece with the mounting groove is connected, the inside packing of buffer cylinder has the elastoplasticity filler, the one end activity of bracing piece bury underground in the elastoplasticity filler to through the buffering subassembly with the interior wall connection of buffer cylinder, the other end of bracing piece with the extension board is connected.
2. The bridge widening telescopic device according to claim 1, wherein a horizontally arranged limiting plate is connected to one end of the supporting rod, which is located in the elastic-plastic filler, and the limiting plate is connected with the bottom of the buffer cylinder through the buffer assembly.
3. The bridge widening telescopic device according to claim 2, wherein the buffer assembly comprises a vertically arranged rubber column, and two ends of the rubber column are respectively connected with the limiting plate and the bottom of the buffer cylinder;
the two sides of the rubber column are respectively provided with a first buffer spring, and two ends of the first buffer spring are respectively connected with the limiting plate and the bottom of the buffer cylinder.
4. The bridge widening telescopic device according to claim 3, wherein a cushion pad is arranged on one side of the limiting plate away from the supporting rod, and one end of the rubber column away from the cushion cylinder is connected with the cushion pad;
the rubber column with be equipped with the rubber strip that the slope set up between the first buffer spring, the both ends of rubber strip respectively with the blotter with the bottom of buffer cylinder is connected.
5. The telescopic device for bridge widening according to claim 3, wherein a horizontally arranged elastic column is arranged between the supporting rod and the inner side wall of the buffer cylinder, and two ends of the elastic column are respectively connected with the supporting rod and the inner side wall of the buffer cylinder.
6. The bridge widening telescopic device according to claim 5, wherein second buffer springs are respectively arranged on two sides of the elastic column, and two ends of each second buffer spring are respectively connected with the supporting rod and the inner side wall of the buffer cylinder.
7. The telescopic device for bridge widening according to claim 6, wherein a through hole communicated with the inside of the mounting groove is formed in one end of the buffer cylinder away from the mounting groove, and one end of the support rod away from the limit plate penetrates through the through hole and is connected with the extension plate.
8. The bridge widening telescopic device according to claim 7, wherein a horizontally arranged mounting plate is connected to one end of the support rod away from the limiting plate, and the mounting plate is connected with the extension plate through a fixing screw.
9. The bridge widening telescopic device according to claim 7, wherein a horizontally arranged fixing plate is connected to one end of the buffer cylinder, which is far away from the supporting rod, and the fixing plate is connected with the mounting groove through a mounting screw.
10. The telescopic device for bridge widening according to claim 1, wherein a water stop is provided between the new bridge and the old bridge, and both ends of the water stop are connected with the new bridge and the old bridge, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222999540.8U CN218508238U (en) | 2022-11-10 | 2022-11-10 | Expansion device for bridge widening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222999540.8U CN218508238U (en) | 2022-11-10 | 2022-11-10 | Expansion device for bridge widening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218508238U true CN218508238U (en) | 2023-02-21 |
Family
ID=85220242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222999540.8U Active CN218508238U (en) | 2022-11-10 | 2022-11-10 | Expansion device for bridge widening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218508238U (en) |
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2022
- 2022-11-10 CN CN202222999540.8U patent/CN218508238U/en active Active
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