CN214993042U - Bridge expansion joint device - Google Patents
Bridge expansion joint device Download PDFInfo
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- CN214993042U CN214993042U CN202120159653.XU CN202120159653U CN214993042U CN 214993042 U CN214993042 U CN 214993042U CN 202120159653 U CN202120159653 U CN 202120159653U CN 214993042 U CN214993042 U CN 214993042U
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- bottom plate
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- expansion joint
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Abstract
The utility model provides a bridge expansion joint device, including fixed fishback and stride the seam board, stride the outer end of seam board and locate on the supporting seat, be equipped with lower bracket bottom plate and PMKD in proper order below the supporting seat, PMKD can round spliced pole and lower bracket bottom plate relative level rotate, PMKD has the longitudinal bridge to stretching out to striding the connecting portion of seam board below, be provided with first connecting hole along the horizontal bridge to the interval on the connecting portion, it is connected through first connecting bolt with PMKD to stride the seam board, the upper end of first connecting bolt is connected on striding the seam board, the lower extreme of first connecting bolt passes first connecting hole and connects on PMKD, leave the clearance between first connecting bolt and the first connecting hole. A movable gap is reserved between the first connecting bolt and the first connecting hole of the bridge expansion joint device, so that when the bridge is influenced by heavy load, strong wind, ocean current, tides and earthquakes and horizontally rotates along the abutment, the fixed bottom plate can horizontally rotate around the connecting column and the lower support base plate relatively, and the rotation is very flexible.
Description
Technical Field
The utility model relates to a bridge expansion joint device.
Background
In order to meet the requirement of deformation of a bridge body, a bridge expansion joint device is generally arranged between two beam ends of a bridge, between the beam end and an abutment or on the hinged position of the bridge. At present, most of existing bridge expansion joint devices have longitudinal displacement, longitudinal corners and transverse displacement three-way deflection functions at the same time, and can meet the requirements of most of bridges on the bridge expansion joint devices, but some large bridges are influenced by environment, temperature, heavy load, strong wind, ocean current, tide and earthquake in the using process, and can generate horizontal corners besides longitudinal displacement, longitudinal corners and transverse displacement.
Although the prior art also discloses a bridge expansion joint device with longitudinal displacement, transverse displacement, longitudinal rotation angle and horizontal rotation angle, the structure setting of its horizontal rotation angle is not reasonable enough, and it is equipped with axis of rotation and bolt mounting hole on the bridge fixed plate, and connecting bolt upper end is passed the bolt mounting hole and is striden seam board looks fixed connection, and when the bridge fixed plate produced horizontal rotation, the bridge fixed plate can produce the interference to connecting bolt, influences going on smoothly of horizontal rotation angle, can cause the damage of expansion joint device and roof beam body when serious. 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 that to above-mentioned prior art current situation, provide a bridge expansion joint device that novel structure, horizontal corner are nimble.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: this bridge expansion joint device, including the fixed fishback of mutually supporting with stride the seam board, stride the outer end of seam board and locate on the supporting seat, its characterized in that: the supporting seat is characterized in that a lower bracket bottom plate and a fixed bottom plate are sequentially arranged from top to bottom below the supporting seat, the lower bracket bottom plate and the fixed bottom plate are connected in a rotating mode through a connecting column, the fixed bottom plate can rotate around the connecting column and the lower bracket bottom plate in a horizontal mode, the fixed bottom plate is provided with connecting portions extending out of a longitudinal bridge direction to a position below a cross-joint plate, first connecting holes are formed in the connecting portions along transverse bridge directions at intervals, the cross-joint plate is connected with the fixed bottom plate through first connecting bolts, the upper ends of the first connecting bolts are connected to the cross-joint plate, the lower ends of the first connecting bolts penetrate through the first connecting holes and are connected to the fixed bottom plate, and movable gaps are reserved between the first connecting bolts and the first connecting holes.
In order to make horizontal corner more nimble, first connecting hole is waist shape hole, and the length direction of first connecting hole has for the inclination of horizontal bridge to the slope to, along horizontal bridge to the direction, the inclination that is located the first connecting hole of PMKD middle zone is minimum, and the inclination that is located the first connecting hole of PMKD both sides is the biggest, and the inclination of every first connecting hole is from the centre to the gradual grow of both sides.
In order to avoid interference between the fixed bottom plate and the lower support base plate when the fixed bottom plate and the lower support base plate rotate horizontally, second connecting holes are formed in the two sides of the fixed bottom plate in the transverse bridge direction, the fixed bottom plate is connected with the lower support base plate through second connecting bolts, and movable gaps are reserved between the second connecting bolts and the second connecting holes.
Further preferably, the second connecting hole is a waist-shaped hole, and the length direction of the second connecting hole is consistent with the longitudinal direction of the bridge.
In order to buffer the connection between the seam crossing plate and the fixed bottom plate, the lower end of the first connecting bolt is sleeved with a buffer spring, the upper end of the buffer spring is abutted against the fixed bottom plate, and the lower end of the buffer spring is abutted against a nut at the lower end of the first connecting bolt.
In order to provide buffering between the lower pressure plate assembly and the fixed base plate, a buffering support is arranged between the fixed base plate and the lower support base plate.
Further preferably, the buffer support is a rubber support.
The supporting seat can have multiple structures, preferably, the supporting seat includes support clamp plate, pivot and lower support, the lower support is located the below of support clamp plate, the pivot is along the horizontal bridge to setting up between support clamp plate and lower support, stride the outer end of seam board and connect in the pivot, support clamp plate, lower support and lower support bottom plate are connected through third connecting bolt.
In order to avoid rainwater to flow down from the expansion joint, the fixed baseplate is connected and fixed on the first beam body, the fixed comb plate is connected and fixed on the second beam body, an expansion joint is formed between the first beam body and the second beam body, a water stop is installed in the expansion joint, one end of the water stop is connected on the first beam body, and the other end of the water stop is connected on the second beam body.
In order to protect the expansion joint device, a buffer baffle plate is installed on one side, close to the first beam body, of the supporting seat, and an anti-collision baffle plate is installed on the outer side of the buffer baffle plate.
Further preferably, the first beam body is a steel box beam, the fixed baseplate is fixed on the first beam body through the support rib plate, the second beam body is a concrete beam, reinforcing steel bars are embedded in the top of the concrete beam, and the fixed comb plate is connected with the reinforcing steel bars through fourth connecting bolts.
Compared with the prior art, the utility model has the advantages of: this bridge expansion joint device's supporting seat with stride seam board swing joint, through spliced pole swing joint between lower bracket bottom plate and the PMKD of supporting seat below, and, the connection is striden and is left the free gap between seam board and PMKD's first connecting bolt and the first connecting hole on the PMKD, make when the bridge receives the heavy load, strong wind, ocean current, morning and evening tides, earthquake influence, when producing the level rotation along the pier, PMKD can rotate round spliced pole and lower bracket bottom plate relative level, and rotate very in a flexible way.
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 structural sectional view of an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fixing base plate according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 4, the bridge expansion joint device in this embodiment includes a fixed comb plate 1 and a joint-crossing plate 2 that are mutually matched, the outer end of the joint-crossing plate 2 is disposed on a supporting seat, a lower bracket bottom plate 6 and a fixed bottom plate 7 are sequentially disposed from top to bottom below the supporting seat, the supporting seat is movably connected with the joint-crossing plate 2, and the lower bracket bottom plate 6 is movably connected with the fixed bottom plate 7 through a connecting column 8.
The fixed bottom plate 7 is provided with a connecting part 71 extending out of the longitudinal bridge direction to the lower part of the cross-joint plate 2, a first connecting hole 72 is arranged on the connecting part 71 along the transverse bridge direction at intervals, the cross-joint plate 2 is connected with the fixed bottom plate 7 through a first connecting bolt 91, the upper end of the first connecting bolt 91 is connected on the cross-joint plate 2, the lower end of the first connecting bolt 91 penetrates through the first connecting hole 72 and is connected on the fixed bottom plate 7, and a movable gap is reserved between the first connecting bolt 91 and the first connecting hole 72. In order to buffer the connection between the seam crossing plate 2 and the fixing base plate 7, the lower end of the first connecting bolt 91 is sleeved with a buffer spring 10, the upper end of the buffer spring 10 abuts against the fixing base plate 7, and the lower end of the buffer spring 10 abuts against a nut 11 at the lower end of the first connecting bolt 91.
When PMKD 7 rotates round the relative lower bracket bottom plate 6 level of spliced pole 8, because PMKD 7 middle zone's rotation displacement volume is less, and the rotation displacement volume of horizontal bridge to both sides is great, consequently, this embodiment is waist shape hole with first connecting hole 7 design, and the length direction of first connecting hole 72 has for the inclination of horizontal bridge to the slope. As shown in fig. 4, the direction indicated by arrow B is the transverse direction, and the distance between the middle first connecting hole 72 and the connecting column 8 is the shortest, so along the transverse direction, the inclination angle of the first connecting hole 72 located in the middle area of the fixed base plate 7 is the smallest, the inclination angle of the first connecting holes 72 located at both sides of the fixed base plate 7 is the largest, and the inclination angle of each first connecting hole 72 is gradually increased from the middle to both sides. In this embodiment, there are 5 first connection holes 72, the inclination angle of the middle first connection hole 72 is the smallest, and the inclination angles of the two first connection holes 72 on both sides become larger gradually.
The fixed base plate 7 is provided with second connecting holes 73 on both sides in the transverse bridge direction, the fixed base plate 7 is connected with the lower pedestal base plate 6 through second connecting bolts 92, and a movable gap is left between the second connecting bolts 92 and the second connecting holes 73. In this embodiment, the second connection hole 73 is a waist-shaped hole, and the length direction of the second connection hole 73 is consistent with the longitudinal direction, so as to avoid the mutual interference between the fixed bottom plate 7 and the lower seat bottom plate 6 during horizontal rotation. In addition, in order to reduce the horizontal rotation angle resistance, a buffer support 12 is installed between the fixed base plate 7 and the lower support base plate 6, and a rubber support is preferably used as the buffer support 12.
In this embodiment, the supporting base includes a supporting pressing plate 3, a rotating shaft 4 and a lower bracket 5. Wherein, lower bracket 5 is located the below of support clamp plate 3, and pivot 4 sets up between support clamp plate 3 and lower bracket 5 along horizontal bridge to, strides the outer end of seam board 2 and connects on pivot 4, and support clamp plate 3, lower bracket 5 are connected through third connecting bolt 93 with lower bracket bottom plate 6. Therefore, when the bridge generates a longitudinal corner due to heavy load, the seam crossing plate 2 is rigidly connected with the rotating shaft 4, and the seam crossing plate 2 generates longitudinal rotation by taking a central hole between the support pressing plate 3 and the lower support 5 as an axis through the rotating shaft 4, so that the bridge expansion joint device has a longitudinal corner function.
The PMKD 7 of this embodiment is connected and is fixed on first roof beam body 17, and fixed fishback 1 is connected and is fixed on second roof beam body 18, forms the expansion joint between first roof beam body 17 and the second roof beam body 18, installs waterstop 19 in the expansion joint, and the one end of waterstop 19 is connected on first roof beam body 17, and the other end of waterstop 19 is connected on second roof beam body 18. Wherein, first roof beam body 17 is the steel case roof beam, and PMKD 7 passes through support rib 15 to be fixed on first roof beam body 17, and buffer baffle 13 is installed to one side that the supporting seat is close to first roof beam body 17, and anticollision baffle 14 is installed in buffer baffle 13's the outside. The second beam body 18 is a concrete beam, the top of the concrete beam is embedded with reinforcing steel bars 16, and the fixed comb plate 1 is connected with the reinforcing steel bars 16 through fourth connecting bolts 94. When the bridge is influenced by heavy load, strong wind, ocean current, tides and earthquakes and horizontally rotates along the pier, the fixed bottom plate 7 can horizontally rotate around the connecting column 8 and the lower support base bottom plate 6 relatively.
The longitudinal displacement structure of the bridge expansion joint device is as follows: when the bridge is longitudinally displaced along the bridge driving direction due to the environmental temperature and the external force, the bridge expansion joint device has the longitudinal displacement function through the relative longitudinal movement of the seam crossing plate 2 and the fixed comb plate 1. The structure is the same as the existing expansion joint device, and the description is not expanded.
Claims (10)
1. The utility model provides a bridge expansion joint device, includes fixed fishback (1) of mutually supporting and strides seam board (2) on the supporting seat is located to the outer end of striding seam board (2), its characterized in that: a lower bracket bottom plate (6) and a fixed bottom plate (7) are sequentially arranged below the supporting seat from top to bottom, the lower bracket bottom plate (6) is rotationally connected with the fixed bottom plate (7) through a connecting column (8), the fixed bottom plate (7) can rotate horizontally around the connecting column (8) and the lower support base bottom plate (6) relatively, the fixed bottom plate (7) is provided with a connecting part (71) which extends out of the longitudinal bridge direction to the lower part of the seam crossing plate (2), the connecting part (71) is provided with first connecting holes (72) at intervals along the transverse bridge direction, the seam crossing plate (2) is connected with the fixed bottom plate (7) through a first connecting bolt (91), the upper end of the first connecting bolt (91) is connected on the seam crossing plate (2), the lower end of the first connecting bolt (91) passes through the first connecting hole (72) and is connected on the fixed bottom plate (7), a movable gap is reserved between the first connecting bolt (91) and the first connecting hole (72).
2. The bridge expansion joint installation of claim 1, wherein: the first connecting holes (72) are waist-shaped holes, the length direction of the first connecting holes (72) has an inclination angle inclined relative to the transverse bridge direction, and along the transverse bridge direction, the inclination angle of the first connecting holes (72) located in the middle area of the fixed base plate (7) is the smallest, the inclination angle of the first connecting holes (72) located on the two sides of the fixed base plate (7) is the largest, and the inclination angle of each first connecting hole (72) is gradually increased from the middle to the two sides.
3. The bridge expansion joint installation of claim 2, wherein: the fixed base plate (7) is provided with second connecting holes (73) on two sides in the transverse bridge direction, the fixed base plate (7) is connected with the lower support base plate (6) through second connecting bolts (92), and a movable gap is reserved between the second connecting bolts (92) and the second connecting holes (73).
4. The bridge expansion joint installation of claim 3, wherein: the second connecting hole (73) is a waist-shaped hole, and the length direction of the second connecting hole (73) is consistent with the longitudinal direction of the bridge.
5. The bridge expansion joint installation of claim 1, wherein: the lower end of the first connecting bolt (91) is sleeved with a buffer spring (10), the upper end of the buffer spring (10) is abutted against the fixed bottom plate (7), and the lower end of the buffer spring (10) is abutted against a nut (11) at the lower end of the first connecting bolt (91).
6. The bridge expansion joint installation of claim 1, wherein: and a buffer support (12) is arranged between the fixed bottom plate (7) and the lower support base plate (6).
7. The bridge expansion joint installation of claim 1, wherein: the supporting seat comprises a support pressing plate (3), a rotating shaft (4) and a lower support seat (5), the lower support seat (5) is located below the support pressing plate (3), the rotating shaft (4) is arranged between the support pressing plate (3) and the lower support seat (5) along a transverse bridge direction, the outer end of a cross-joint plate (2) is connected to the rotating shaft (4), and the support pressing plate (3), the lower support seat (5) and the lower support seat bottom plate (6) are connected through a third connecting bolt (93).
8. The bridge expansion joint installation of claim 1, wherein: the utility model discloses a water stop device, including the fixed bottom plate, first roof beam body (17), fixed fishback (7) are connected and are fixed on first roof beam body (17), fixed fishback (1) is connected and is fixed on second roof beam body (18), form the expansion joint between first roof beam body (17) and the second roof beam body (18) install waterstop (19) in the expansion joint, the one end of waterstop (19) is connected on first roof beam body (17), and the other end of waterstop (19) is connected on second roof beam body (18).
9. The bridge expansion joint installation of claim 8, wherein: buffer baffle (13) are installed to one side that the supporting seat is close to first roof beam body (17), anticollision baffle (14) are installed in the outside of buffer baffle (13).
10. The bridge expansion joint installation of claim 8, wherein: first roof beam body (17) are the steel case roof beam, PMKD (7) are fixed on first roof beam body (17) through support floor (15), second roof beam body (18) are the concrete beam, and the top of concrete beam is pre-buried has reinforcing bar (16), fixed fishback (1) through fourth connecting bolt (94) with reinforcing bar (16) are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120159653.XU CN214993042U (en) | 2021-01-20 | 2021-01-20 | Bridge expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120159653.XU CN214993042U (en) | 2021-01-20 | 2021-01-20 | Bridge expansion joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214993042U true CN214993042U (en) | 2021-12-03 |
Family
ID=79141247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120159653.XU Active CN214993042U (en) | 2021-01-20 | 2021-01-20 | Bridge expansion joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214993042U (en) |
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2021
- 2021-01-20 CN CN202120159653.XU patent/CN214993042U/en active Active
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