CN214939228U - Expansion joint damping device - Google Patents
Expansion joint damping device Download PDFInfo
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- CN214939228U CN214939228U CN202120052609.9U CN202120052609U CN214939228U CN 214939228 U CN214939228 U CN 214939228U CN 202120052609 U CN202120052609 U CN 202120052609U CN 214939228 U CN214939228 U CN 214939228U
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- damping device
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Abstract
The utility model provides an expansion joint damping device belongs to bridge beam supports technical field, include: the first connecting piece and the second connecting piece are connected through bolts, the distortion reset part is connected between the first connecting piece and the second connecting piece, and when the first connecting piece and the second connecting piece are in failure in bolt connection and are relatively staggered, the distortion reset part can enable the first connecting piece and the second connecting piece to form reset. This expansion joint damping device application can make the bridge floor automatic re-setting of skew after disasters such as earthquake when in bridge structural design, reduces the influence that fixing bolt was cut, guarantees the basic function of leading to the traffic of bridge floor. The distortion resetting component of the device occupies small space, is reliable and stable in connection, has good resetting effect after distortion, is convenient to install, and has strong practicability.
Description
Technical Field
The utility model relates to a bridge beam supports technical field particularly, relates to an expansion joint damping device.
Background
In recent years, the rapid development of Chinese bridge technology and the rapid rise of bridge buildings advance various large-scale bridge engineering, so that the requirements of bridge connecting members are increasingly diversified. In the modern bridge construction, not only the influence of temperature displacement change and vehicle braking and acceleration caused by expansion and contraction of the bridge due to heat and ordinary temperature difference change is considered, but also the influence of special natural disasters such as earthquake, hurricane and the like on the stability of the bridge is considered. In 08 years, Wenchuan earthquake, the research on bridge earthquake resistance is continuously deepened, the key factor of bridge earthquake resistance depends on the basic connection part between the bridge supporting part and the bridge deck beam body, various earthquake-resistant buffer supports are arranged on the bridge support to meet the requirement of excessive displacement generated when the earthquake comes, the action of earthquake waves on the bridge is delayed, but the research or functional products between the beam bodies are few, particularly, a product for protecting the fixed connection between the beam bodies is lacked, and the fixed connection between the beam bodies, such as bolt connection, can cause the function failure of the whole buffer support if the fixed connection is broken under the earthquake impact.
SUMMERY OF THE UTILITY MODEL
In order to reinforce the temporary protection effect on the bridge when an earthquake comes, the temporary protection on the beam body when the earthquake comes is realized by considering the action function between the beam body and the beam body instead of buffering the earthquake action force by the support. The expansion joint damping device aims at protecting two connecting structures with relative shearing trends, and the two connecting structures can return to the original positions after the bolt connection is sheared by shearing impact, so that the normal operation of the whole device is ensured. The anti-seismic design of the bridge expansion device has the effect that if strong vibration is generated by an earthquake so that the bolt connection between the expansion device of the bridge deck and the fixed beam of the expansion device is cut off, the expansion joint damping device can restore the expansion device and the fixed beam of the expansion joint damping device to the original position after the earthquake is stopped, and the shifted bridge deck is also restored to the original position, so that the basic traffic function of the bridge deck is ensured.
The embodiment of the utility model discloses a realize through following technical scheme:
an expansion joint damping device comprising: the expansion joint damping device comprises a first connecting piece and a second connecting piece, wherein the first connecting piece and the second connecting piece are connected through bolts, the expansion joint damping device further comprises a distortion resetting part, the distortion resetting part is connected between the first connecting piece and the second connecting piece, and when the first connecting piece and the second connecting piece are in bolt connection failure and are relatively staggered, the distortion resetting part can enable the first connecting piece and the second connecting piece to form resetting.
Preferably, a convex third connecting piece is fixedly arranged on the first connecting piece, a convex fourth connecting piece is fixedly arranged on the second connecting piece, the number of the fourth connecting pieces is two, the two fourth connecting pieces are respectively positioned on two sides of the third connecting piece, and the two twisting reset parts are respectively arranged between the third connecting piece and the fourth connecting piece.
Preferably, the fourth connecting piece is connected to the first connecting piece by using a shear bolt, and the shear bolt connection and the bolt connection used by the first connecting piece and the second connecting piece are the same.
Preferably, a layer of backing plate is arranged at the joint of the twisting reset part and the fourth connecting piece.
Preferably, the torsion resetting part comprises an upper sealing plate, a damping rubber body and a lower sealing plate, and the upper sealing plate, the damping rubber body and the lower sealing plate are connected into a whole through a vulcanization process.
Preferably, the distortion resetting component is connected with the third connecting piece through a stud, the distortion resetting component is connected with the fourth connecting piece through a fastening bolt, and threaded holes are formed in the centers of the upper sealing plate and the lower sealing plate.
Preferably, the twisted reset device is a cylinder.
The utility model discloses technical scheme has following advantage and beneficial effect at least:
the top surface of a distortion resetting part in the expansion joint damping device is connected with a displacement part of a telescopic device of a bridge structure, the bottom surface of the distortion resetting part is connected with a fixing device, the distortion bolt is connected with the fixing device through a shear bolt, when the distortion resetting part is influenced by self expansion and contraction or other disasters such as earthquake, hurricane and the like come, the bridge deck vibrates and deflects, the shear bolt is cut off, after the disasters are ended, a damping rubber block in the distortion resetting part gradually drives the displacement part of the telescopic device to reset, the deflected bridge deck returns to the original position, the influence of cutting off the fixing bolt is reduced, and the basic vehicle passing function of the bridge deck is ensured. And the distortion resetting component of the device occupies small space, is reliable and stable in connection, has good resetting effect after distortion, is convenient to install and has strong practicability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention
FIG. 2 is a schematic sectional view of the present invention
Icon: 1-first connector, 2-second connector, 3-distortion resetting part, 4-third connector, 5-fourth connector, 6-shear bolt, 7-fastening bolt, 8-stud, 9-backing plate, 301-upper sealing plate, 302-damping rubber body, 303-lower sealing plate
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Referring to fig. 1, a damping device for an expansion joint includes: first connecting piece 1, second connecting piece 2 and distortion reset part 3, distortion reset part 3 includes shrouding 301, damping rubber body 302 and shrouding 303 down, and connect through vulcanization technology and form integratively, be the cylinder shape, the damping rubber that this structure formed has characteristics such as displacement macroscopicity high tenacity is strong, can bear great shearing force, there is the interval space between first connecting piece 1 and the second connecting piece 2, adopt bolted connection fixed connection, distortion reset part 3 connects between first connecting piece 1 and second connecting piece 2. First connecting piece 1 and second connecting piece 2 are relative parallel and have two connecting pieces of relative shearing motion trend, in bridge design application, then first connecting piece 1 is connected with pre-buried anchor bar or telescoping device concrete welding position of the roof beam body, second connecting piece 2 is connected with the telescoping device moving part, for example boundary beam shaped steel, second connecting piece 2 bears the horizontal impact force that the telescoping device brought, form the shearing to bolted connection, cut out inefficacy when bolted connection, first connecting piece 1 causes relative dislocation under shearing impact with second connecting piece 2, cushion impact force, after shearing impact, distortion reset part 3 can make first connecting piece 1 and second connecting piece 2 form and reset because of its strong characteristics of toughness. The twist reset device 3 is connected between the first connecting member 1 and the second connecting member 2 in various ways.
In one embodiment, the twisted reset device 3 is directly connected end to end between the first connecting piece 1 and the second connecting piece 2, and can form basic damping return action after horizontal shearing displacement, and the shearing action direction can be any horizontal direction.
In another preferred embodiment, referring to fig. 1, in order to connect the twisted resetting part 3 more reliably and enhance the resetting effect after twisting, a third connecting part 4 is fixedly disposed on the first connecting part 1, the embodiment of the third connecting part 4 is specifically represented by a middle plate perpendicular to the first connecting part 1 in the drawing, a fourth connecting part 5 is fixedly disposed on the second connecting part 2, the fourth connecting part 5 is a plate parallel to the third connecting part 4, two fourth connecting parts 5 are disposed and respectively located at two sides of the third connecting part 4, and two twisted resetting parts 3 are disposed between the third connecting part 4 and the fourth connecting part 5. In fact, the bridge is subjected to earthquake, hurricane or displacement generated by thermal expansion and cold contraction of the bridge, so that the shearing acting force generated by the expansion device is in a fixed direction, namely the driving direction, and the force in the driving direction can be generated by braking, acceleration and the like in driving, and the expansion device can be pushed to generate the shearing action, so that the resetting effect in the direction can be enhanced by the structure of the embodiment.
The first connecting piece 1 and the second connecting piece 2 are connected by at least one bolt, in the embodiment, the bolt connection is set to be that the fourth connecting piece 5 is connected to the first connecting piece 1 by the shear bolts 6, the corresponding connecting boss surface is arranged at the joint of the shear bolts 6 of the fourth connecting piece 5, the number of the fourth connecting pieces 5 is two, and the shear bolts 6 are connected by at least 4 parts, so that the structural connection has more stability.
Referring to fig. 2, for making this device have more practicality, simple to operate, 5 welded connection of fourth connecting piece are on second connecting piece 2, and 4 welded connection of third connecting piece are on first connecting piece 1, and distortion reset block 3 passes through double-screw bolt 8 and is connected with third connecting piece 4, and rethread fastening bolt 7 is connected with fourth connecting piece 5, and the center department of going up shrouding 301 and shrouding 303 is equipped with the screw hole for be connected with double-screw bolt 8 and fastening bolt 7. The joint of the distortion resetting part 3 and the fourth connecting piece 5 is also provided with a layer of backing plate 9 which is used for increasing the assembly clearance and is beneficial to installation and adjustment.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention, which is defined by the appended claims and their equivalents.
Claims (7)
1. An expansion joint damping device comprising: first connecting piece (1) and second connecting piece (2), first connecting piece (1) adopts bolted connection with second connecting piece (2), its characterized in that still includes distortion reset part (3), distortion reset part (3) are connected between first connecting piece (1) and second connecting piece (2), and after bolted connection inefficacy first connecting piece (1) and second connecting piece (2) misplaced relatively, distortion reset part (3) can make first connecting piece (1) and second connecting piece (2) form and reset.
2. The expansion joint damping device according to claim 1, wherein a third connecting member (4) is fixedly arranged on the first connecting member (1), a fourth connecting member (5) is fixedly arranged on the second connecting member (2), two fourth connecting members (5) are arranged and are respectively positioned at two sides of the third connecting member (4), and two torsion resetting members (3) are arranged and are respectively arranged between the third connecting member (4) and the fourth connecting member (5).
3. The expansion joint damping device according to claim 2, characterized in that the fourth connecting member (5) is connected to the first connecting member (1) by a shear bolt (6), and the shear bolt (6) connection and the bolt connection used by the first connecting member (1) and the second connecting member (2) are the same connection.
4. The expansion joint damping device according to claim 2, characterized in that a layer of backing plate (9) is arranged at the joint of the torsion restoring component (3) and the fourth connecting piece (5).
5. The expansion joint damping device according to claim 2, characterized in that the torsion restoring member (3) comprises an upper closing plate (301), a damping rubber body (302) and a lower closing plate (303), and is connected into a whole through a vulcanization process.
6. The expansion joint damping device according to claim 5, characterized in that the distortion resetting part (3) is connected with the third connecting piece (4) through a stud (8), the distortion resetting part (3) is connected with the fourth connecting piece (5) through a fastening bolt (7), and threaded holes are formed in the centers of the upper sealing plate (301) and the lower sealing plate (303).
7. The expansion joint damping device according to claim 1, characterized in that the twisted reset means (3) is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120052609.9U CN214939228U (en) | 2021-01-08 | 2021-01-08 | Expansion joint damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120052609.9U CN214939228U (en) | 2021-01-08 | 2021-01-08 | Expansion joint damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214939228U true CN214939228U (en) | 2021-11-30 |
Family
ID=79122558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120052609.9U Active CN214939228U (en) | 2021-01-08 | 2021-01-08 | Expansion joint damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214939228U (en) |
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2021
- 2021-01-08 CN CN202120052609.9U patent/CN214939228U/en active Active
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