CN216474478U - Anti-seismic type bridge expansion joint device - Google Patents
Anti-seismic type bridge expansion joint device Download PDFInfo
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- CN216474478U CN216474478U CN202121694855.0U CN202121694855U CN216474478U CN 216474478 U CN216474478 U CN 216474478U CN 202121694855 U CN202121694855 U CN 202121694855U CN 216474478 U CN216474478 U CN 216474478U
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Abstract
The utility model provides an antidetonation type bridge expansion joint device, strides seam board and fixed fishback including mutually supporting, strides the outer end of seam board and installs on the supporting seat that is located first roof beam tip, and fixed fishback is installed on second roof beam tip, forms the expansion joint between first roof beam tip and the second roof beam tip, installs the bottom plate in the below of supporting seat, and the bottom plate is connected and is fixed at first roof beam tip, is connected through shearing the round pin between supporting seat and the bottom plate. The utility model has the advantages that: this antidetonation type bridge expansion joint device is connected through shearing the round pin between the supporting seat at first beam ends portion and bottom plate to and through striding installation cable between seam board and the second beam ends portion, when vibrations lead to the expansion joint top dead, the shearing round pin can be cut, stride seam board and supporting seat and can slide, make the removal end roof beam body can continue to remove, avoid producing the damage to the expansion joint device, convenient maintenance is changed afterwards, and, the expansion joint device can be withheld to the cable, prevent that the roof beam that falls from producing the damage, also convenient maintenance is changed afterwards.
Description
Technical Field
The utility model relates to the technical field of bridge expansion joints, in particular to an anti-seismic bridge expansion joint device.
Background
The expansion joint is a structural joint which is arranged for preventing the structure of a building component from cracking or damaging due to climate temperature change (thermal expansion and cold contraction), and in order to ensure the safety of personnel and driving, an expansion joint device, such as the most common comb plate expansion joint device, needs to be installed at the structural joint. The comb plate expansion joint device comprises a first beam body and a second beam body which are positioned at two sides of a bridge expansion structure joint, and a movable toothed plate and a fixed toothed plate which are respectively arranged on the first beam body and the second beam body. The movable toothed plate is arranged on the bridge expansion structure seam to serve as a seam crossing plate, and comb teeth are arranged on the opposite end portions of the movable toothed plate and the fixed toothed plate and are staggered at intervals. In daily use, because some external factors influence, for example earthquake etc. the expansion joint can produce vibrations, at this moment produces destruction to the structure of ordinary expansion joint easily, leads to the trouble of expansion joint, and then influences driving safety nature. In summary, the conventional bridge expansion joint device is to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an anti-seismic bridge expansion joint device which can prevent the expansion joint device from being damaged by seismic vibration in view of the current situation of the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: this antidetonation type bridge expansion joint device, stride seam board and fixed fishback including mutually supporting, stride the outer end of seam board and install on the supporting seat that is located first roof beam tip, fixed fishback is installed on second roof beam tip, form the expansion joint between first roof beam tip and the second roof beam tip, its characterized in that: the bottom plate is installed to the below of supporting seat, the bottom plate is connected and is fixed at first roof beam tip, be connected through the shear pin between supporting seat and the bottom plate.
The supporting seat can have multiple different structures, preferably, the supporting seat includes support clamp plate and locates the lower bracket of support clamp plate below, support clamp plate is connected through first connecting bolt with lower bracket, the bottom plate is located the below of lower bracket, pass through between lower bracket and the bottom plate the shearing pin is connected, the outer end of striding the seam board is connected with lower bracket through second connecting bolt.
In order to enable the expansion joint device to have the longitudinal corner turning function, the supporting seat further comprises a rotating shaft arranged between the supporting seat pressing plate and the lower supporting seat, the rotating shaft is arranged along the transverse bridge direction, and the outer end of the seam crossing plate is connected to the rotating shaft.
Further preferably, the shear pins are arranged in two rows, and each row of shear pins is distributed at intervals along the transverse bridge direction.
In order to further prevent the expansion joint device from being damaged during earthquake vibration, the expansion joint device also comprises a guy cable arranged in the expansion joint, the upper end of the guy cable is fixed at the bottom of the seam crossing plate, and the lower end of the guy cable is fixed at the end part of the second beam. Like this, when vibrations lead to the expansion joint to pull off, the expansion joint can be held to the cable, prevents to fall the roof beam and produces the damage, also makes things convenient for the maintenance to change afterwards.
Preferably, the upper end of the inhaul cable is provided with an upper end of the inhaul cable, the lower end of the inhaul cable is provided with a lower end of the inhaul cable, an upper inhaul cable fixing plate is installed at the bottom of the seam crossing plate, a lower inhaul cable fixing plate is installed at the end of the second beam, the upper end of the inhaul cable is installed and fixed on the upper inhaul cable fixing plate, and the lower end of the inhaul cable is installed and fixed on the lower inhaul cable fixing plate.
Further preferably, the lower stay cable fixing plate is mounted on beam concrete on the upper part of the end part of the second beam.
In order to make the anti-seismic effect better, the inhaul cables are distributed at intervals along the transverse bridge. Preferably, more than 1 cable can be arranged in the interval of 1 meter.
In order to avoid rainwater from directly flowing to the ground through the expansion joint, a water stop is further arranged in the expansion joint, two ends of the water stop are respectively fixed to the first beam end part and the second beam end part, and the water stop is located below the inhaul cable.
Preferably, a first steel bar is embedded in the end of the first beam, a second steel bar is embedded in the end of the second beam, the bottom plate is fixed to the first steel bar through a first fixing bolt, and the fixing comb plate is fixed to the second steel bar through a second fixing bolt.
Compared with the prior art, the utility model has the advantages that: this antidetonation type bridge expansion joint device is through the supporting seat below mounting plate at first beam-ends portion, and be connected through the shearing round pin between supporting seat and the bottom plate, and through striding seam board and second beam-ends portion between the installation cable, when vibrations lead to the expansion joint top dead, the shearing round pin can be cut, stride seam board and supporting seat and can slide, make and remove the end roof beam body and can continue to remove, avoid producing the damage to the expansion joint device, convenient maintenance is changed afterwards, and, the expansion joint device can be withheld to the cable, prevent that the roof beam that falls from producing the damage, also convenient maintenance is changed afterwards.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a partial structural cross-sectional view of an embodiment of the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is an enlarged schematic view of a portion C in fig. 3.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 5, the bridge expansion joint device of the present embodiment includes a seam crossing plate 1 and a fixed comb plate 2, which are matched with each other, a support seat 3 is installed at a first beam end 101, an outer end of the seam crossing plate 1 is installed on the support seat 3, the fixed comb plate 2 is installed at a second beam end 102, an expansion joint 103 is formed between the first beam end 101 and the second beam end 102, the above structure is the same as that of the existing comb-tooth type expansion joint device, and a description thereof will not be expanded herein.
The supporting seat 3 of this embodiment includes a supporting seat pressing plate 31, a lower supporting seat 32 and a rotating shaft 33, wherein the supporting seat pressing plate 31 and the lower supporting seat 32 are connected by a first connecting bolt 61, the rotating shaft 33 is disposed between the supporting seat pressing plate 31 and the lower supporting seat 32, and the rotating shaft 33 is disposed along the transverse bridge direction. The outer end of the seam crossing plate 1 is connected to the rotating shaft 33, and the outer end of the seam crossing plate 1 is also connected with the lower bracket 32 through a second connecting bolt 62. A bottom plate 4 is arranged below the lower bracket 32, the bottom plate 4 is fixedly connected with the first beam end part 101, and the lower bracket 32 is connected with the bottom plate 4 through a shear pin 5 to form a shear pin anti-seismic structure. In this embodiment, there are two rows of shear pins 5, and each row of shear pins 5 is spaced along the transverse bridge.
The anti-seismic bridge expansion joint device of the embodiment also improves the anti-seismic capacity through the stay cable anti-seismic structure. Specifically, the stay cable 7 is arranged in the expansion joint 103, the upper end of the stay cable 7 is provided with an upper end 71 of the stay cable, the lower end of the stay cable 7 is provided with a lower end 72 of the stay cable, the bottom of the seam crossing plate 1 is provided with an upper stay cable fixing plate 73, the beam concrete 104 on the upper part of the second beam end part 102 is provided with a lower stay cable fixing plate 74, the upper stay cable end 71 is fixedly arranged on the upper stay cable fixing plate 73 through a screw 75, and the lower stay cable end 72 is fixedly arranged on the lower stay cable fixing plate 74. In this embodiment, the guy cables 7 are distributed along the transverse bridge at intervals, and more than 1 guy cable 7 can be arranged in the interval of 1 meter.
And a water stop 8 is further arranged in the expansion joint 103, the water stop 8 is positioned below the inhaul cable 7, and two ends of the water stop 8 are respectively fixed on the first beam end part 101 and the second beam end part 102. After the water stop belt 8 is arranged, rainwater on the bridge can be prevented from directly flowing down to the ground from the expansion joint 103.
As shown in fig. 3 and 4, a first reinforcing steel bar 91 is embedded in the first beam end 101, a second reinforcing steel bar 92 is embedded in the second beam end 102, the bottom plate 4 is fixedly connected to the first reinforcing steel bar 91 by a first fixing bolt 93, and the fixed comb plate 2 is fixedly connected to the second reinforcing steel bar 92 by a second fixing bolt 94.
This antidetonation type bridge expansion joint device function is the same with conventional expansion joint device when normally using, and when vibrations lead to the expansion joint top to die, shearing round pin 5 can be cut off, strides seam board 1 and can slide with support clamp plate 31 and lower support 32, makes the removal end roof beam body can continue to remove, avoids producing the damage to the expansion joint device to, expansion joint device can be held to cable 7, prevents to fall the roof beam and produces the damage, also convenient maintenance, change afterwards.
Claims (10)
1. The utility model provides an antidetonation type bridge expansion joint device, includes that the seam board (1) and fixed fishback (2) are striden in mutually supporting, the outer end of striding seam board (1) is installed on the supporting seat (3) that are located first beam end portion (101), fixed fishback (2) are installed on second beam end portion (102), form expansion joint (103) between first beam end portion (101) and second beam end portion (102), its characterized in that: bottom plate (4) are installed to the below of supporting seat (3), bottom plate (4) are connected and are fixed at first roof beam tip (101), be connected through shear pin (5) between supporting seat (3) and bottom plate (4).
2. An earthquake-resistant bridge expansion joint installation as claimed in claim 1, wherein: the supporting seat (3) comprises a supporting seat pressing plate (31) and a lower supporting seat (32) arranged below the supporting seat pressing plate, the supporting seat pressing plate (31) is connected with the lower supporting seat (32) through a first connecting bolt (61), the bottom plate (4) is arranged below the lower supporting seat (32), the lower supporting seat (32) is connected with the bottom plate (4) through a shearing pin (5), and the outer end of the cross-seam plate (1) is connected with the lower supporting seat (32) through a second connecting bolt (62).
3. An earthquake-resistant bridge expansion joint installation as claimed in claim 2, wherein: the supporting seat (3) further comprises a rotating shaft (33) arranged between the supporting seat pressing plate (31) and the lower bracket (32), the rotating shaft (33) is arranged along the transverse bridge direction, and the outer end of the seam crossing plate (1) is connected to the rotating shaft (33).
4. An earthquake-resistant bridge expansion joint installation as claimed in claim 1, wherein: the shearing pins (5) are arranged in two rows, and the shearing pins (5) in each row are distributed at intervals along the transverse bridge direction.
5. An earthquake-resistant bridge expansion joint installation as claimed in claim 1, wherein: the expansion joint is characterized by further comprising a pull cable (7) arranged in the expansion joint, the upper end of the pull cable (7) is fixed to the bottom of the joint crossing plate (1), and the lower end of the pull cable (7) is fixed to the end portion (102) of the second beam.
6. An earthquake-resistant bridge expansion joint installation as claimed in claim 5, wherein: cable (7) upper end is equipped with cable upper end (71), and the cable lower extreme is equipped with cable lower end (72) stride the bottom of seam board (1) and install cable upper fixed plate (73) second beam-ends portion (102) install cable lower fixed plate (74), cable upper end (71) installation is fixed on cable upper fixed plate (73), cable lower end (72) installation is fixed on cable lower fixed plate (74).
7. An earthquake-resistant bridge expansion joint installation according to claim 6, wherein: and the lower stay cable fixing plate (74) is installed on the beam body concrete (104) at the upper part of the second beam end part (102).
8. An earthquake-resistant bridge expansion joint installation as claimed in claim 5, wherein: the inhaul cables (7) are distributed at intervals along the transverse bridge direction.
9. An earthquake-resistant bridge expansion joint installation as claimed in claim 5, wherein: and a water stop (8) is further arranged in the expansion joint (103), two ends of the water stop (8) are respectively fixed on the first beam end part (101) and the second beam end part (102), and the water stop (8) is positioned below the inhaul cable (7).
10. An earthquake-resistant bridge expansion joint installation according to any one of claims 1 to 9, further comprising: first reinforcing steel bars (91) are embedded in the first beam end portions (101), second reinforcing steel bars (92) are embedded in the second beam end portions (102), the bottom plate (4) is fixedly connected to the first reinforcing steel bars (91) through first fixing bolts (93), and the fixed comb plate (2) is fixedly connected to the second reinforcing steel bars (92) through second fixing bolts (94).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121694855.0U CN216474478U (en) | 2021-07-23 | 2021-07-23 | Anti-seismic type bridge expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121694855.0U CN216474478U (en) | 2021-07-23 | 2021-07-23 | Anti-seismic type bridge expansion joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216474478U true CN216474478U (en) | 2022-05-10 |
Family
ID=81432032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121694855.0U Active CN216474478U (en) | 2021-07-23 | 2021-07-23 | Anti-seismic type bridge expansion joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216474478U (en) |
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2021
- 2021-07-23 CN CN202121694855.0U patent/CN216474478U/en active Active
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