CN212895894U

CN212895894U - Bridge expansion joint device with detachable function

Info

Publication number: CN212895894U
Application number: CN202021687050.9U
Authority: CN
Inventors: 徐斌; 徐速; 尤其; 刘正武; 喻飞; 罗杭; 张晓丽; 王新雨
Original assignee: Ningbo Roaby Technology Industrial Group Co ltd
Current assignee: Ningbo Roaby Technology Industrial Group Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-04-06
Anticipated expiration: 2030-08-13

Abstract

The utility model provides a bridge expansion joint device with can dismantle function, including striding the seam board and with striding seam board matched with fixed plate, its characterized in that: and a fixed bottom plate used for being fixed with the end part of the corresponding beam is arranged below the seam crossing plate, and the seam crossing plate is detachably connected with the fixed bottom plate through a detachable assembly. The utility model has the advantages that: this bridge expansion joint device with can dismantle function, the below of striding the seam board be equipped with be used for with correspond the fixed PMKD of beam-ends looks fixed, and stride and realize dismantling through dismantling the subassembly between seam board and the PMKD and be connected to can improve installation and dismantlement efficiency, and, owing to can not produce heat in dismantling, consequently can not increase the internal stress of spare part, reduced the destruction to spare part, protected PMKD's performance.

Description

Bridge expansion joint device with detachable function

Technical Field

The utility model relates to a bridge expansion joint device especially relates to a bridge expansion joint device with can dismantle function.

Background

The expansion joint device is one of important functional components of bridge engineering, and in order to meet the requirement of deformation of a bridge body, the bridge expansion joint device is generally arranged between two beam ends of a bridge, between the beam end and an abutment or on a hinged position of the bridge. The bridge engineering is influenced by vehicle load, self materials of the bridge and air temperature to generate creep and wind force action and the like in the operation process, so that the bridge contracts, stretches and deforms. In order to ensure that the vehicle can run safely and stably, the expansion joint device arranged on the bridge needs to meet various changing requirements of the beam body.

At present, when a steel box bridge is provided with a multidirectional displacement expansion joint device, a fixing component is connected with a bridge installation part, a bolt component is connected with the fixing component in a welding mode, and the multidirectional displacement device is connected with the bolt component. When the bolt assembly is integrally installed, the bolt assembly is connected with the fixing assembly in a welding mode, so that the installation workload is large, and meanwhile, due to welding heat, large stress is generated on each part; when needs are maintained, the mode of flame cutting is needed to be adopted, the bolt assembly is cut, high heat is generated during cutting, certain damage is generated to the fixing assembly, and internal stress is generated inside the fixing assembly. In addition, when the mode is installed, the welding workload is large, and the working environment is severe; when the flame cutting machine is disassembled, the flame cutting workload is large, and the working environment is also severe. In summary, the conventional 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 an installation and dismantle convenient, dismouting in-process can not increase the bridge expansion joint device that has the function of dismantling of spare part internal stress.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this bridge expansion joint device with can dismantle function, including striding the seam board and with stride seam board matched with fixed plate, its characterized in that: and a fixed bottom plate which is used for being fixed with the end part of the corresponding beam is arranged below the seam crossing plate, and the seam crossing plate is detachably connected with the fixed bottom plate through a detachable assembly.

The bridge joint crossing plate is characterized in that multiple detachable connecting structures can be arranged between the joint crossing plate and the fixing bottom plate, preferably, bolt mounting holes are formed in the fixing bottom plate and distributed along the bridge at intervals, each detachable assembly comprises a lower bracket bottom plate, a rotating shaft, a support pressing plate and a bolt assembly, the lower bracket bottom plate is arranged on the corresponding bolt mounting holes, the support pressing plates are located on the lower bracket bottom plate, the support pressing plates and the lower bracket bottom plate are provided with vertically aligned mounting holes, the bolt assemblies penetrate through the corresponding mounting holes and the bolt mounting holes of the support pressing plates and the lower bracket bottom plate to fix the support pressing plates and the lower bracket bottom plate on the fixing bottom plate, the rotating shaft is transversely arranged along the bridge and fixed between the support pressing plates and the lower bracket bottom plate, and the outer ends of the joint crossing plate are fixed on the rotating shaft between the adjacent lower bracket bottom plates.

In order to prevent the bolts from falling off, a bottom plate for closing the bolt mounting holes is mounted at the bottom of the bolt mounting holes.

In order to make the bolt can pack into the bolt mounting hole smoothly and take out from the bolt mounting hole, the bolt mounting hole is waist shape hole, it has the boss to follow inside extension on the inner wall at waist shape hole both ends, bolt assembly include two bolts and with the supporting nut of bolt, the head of bolt is put into waist shape hole from the middle part in waist shape hole and slides and spacing in the boss below to waist shape hole both ends, and the bolt upwards passes the mounting hole that corresponds lower bracket bottom plate and support clamp plate in proper order and connects fixedly through the nut that corresponds.

Preferably, the length direction of the waist-shaped hole is consistent with the longitudinal direction of the bridge.

In order to enable the expansion joint device to have a longitudinal corner function, the upper surface of the lower bracket bottom plate is provided with a lower concave part, the lower surface of the support pressing plate is provided with an upper concave part, and the lower bracket bottom plate and the support pressing plate are butted to form a round hole for the rotating shaft to pass through between the lower concave part and the upper concave part.

In order to ensure that the fixed bottom plate and the seam crossing plate are connected more reliably, the bolt mounting hole is arranged at the outer side part of the fixed bottom plate, and the inner side part of the fixed bottom plate is connected with the seam crossing plate through a connecting bolt.

In order to provide buffering at the longitudinal corner, the upper end of the connecting bolt is fixed on the seam crossing plate, and the lower end of the connecting bolt is arranged below the fixed bottom plate and sleeved with a buffering piece. The buffer member is usually a buffer spring.

The fixed bottom plate and the beam end part can have various connecting structures, preferably, the beam end part is a steel box beam, and the fixed bottom plate is welded and fixed with the steel box beam through a fixed rib plate.

In order to fix the fixing plate to the beam end, an anchor bolt for connecting with the corresponding beam end is installed on the fixing plate. In addition, the fixed plate can also be connected to the steel box girder in other connection modes.

Preferably, the fixed plate and the slot-spanning plate have mutually-matched comb tooth structures at respective opposite ends.

Compared with the prior art, the utility model has the advantages of: this bridge expansion joint device with can dismantle function, the below of striding the seam board be equipped with be used for with correspond the fixed PMKD of beam-ends looks fixed, and stride and realize dismantling through dismantling the subassembly between seam board and the PMKD and be connected to can improve installation and dismantlement efficiency, and, owing to can not produce heat in dismantling, consequently can not increase the internal stress of spare part, reduced the destruction to spare part, protected PMKD's performance.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

FIG. 3 is a further exploded view of FIG. 2;

fig. 4 is a schematic view of an installation structure of a bolt on a fixing base plate according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another angle;

fig. 6 is an exploded view of the mounting structure of the bolt and the bolt mounting hole according to the embodiment of the present invention;

FIG. 7 is a schematic view of the structure of FIG. 6 from another angle;

fig. 8 is a schematic view of an installation structure of a bolt and a bolt installation hole according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a bolt mounting hole according to an embodiment of the present invention;

fig. 10 is a schematic view of the bolt mounting hole and the bolt head according to the embodiment of the present invention;

fig. 11 is a partial structural sectional view of 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 3, the multi-directional displacement bridge expansion joint device of the present embodiment includes a cross plate 1 and a fixed plate 2 matched with the cross plate, the cross plate 1 and the fixed plate 2 have mutually matched comb tooth structures at respective opposite ends, the direction indicated by an arrow a in fig. 1 is a transverse direction, i.e., a width direction of the bridge, and the direction indicated by an arrow B in fig. 1 is a longitudinal direction, i.e., a length direction of the bridge, and the cross plate 1 and the fixed plate 2 realize a conventional longitudinal horizontal displacement function through the comb tooth structures.

The fixing bottom plate 3 is arranged below the seam crossing plate 1, in the embodiment, the fixing bottom plate 3 is welded and fixed with the steel box girder 8 through the fixing rib plate 9, and the fixing plate 2 is provided with the anchor bolt for being connected and fixed with the girder end part of the concrete girder body. Of course, the fixing plate 2 can be connected to the steel box girder by other connection methods.

As shown in fig. 4 to 11, the fixing base plate 3 is provided with bolt mounting holes 31, the bolt mounting holes 31 are distributed at intervals along the transverse direction of the bridge, the bolt mounting holes 31 are kidney-shaped holes, and the length direction of the kidney-shaped holes is consistent with the longitudinal direction of the bridge. The seam crossing plate 1 and the fixed bottom plate 3 are detachably connected through a detachable component 4. The detachable component 4 of the present embodiment includes a lower bracket bottom plate 41, a rotating shaft 42, a support pressing plate 43 and a bolt component 44, wherein the lower bracket bottom plate 41 is disposed on the corresponding bolt installation hole 31, the support pressing plate 43 is disposed on the lower bracket bottom plate 41 and the support pressing plate and the lower bracket bottom plate are opened with installation holes 45 aligned up and down, and the bolt component 44 passes through the corresponding installation holes of the support pressing plate 43 and the lower bracket bottom plate 41 and the bolt installation holes 31 to fix the support pressing plate 43 and the lower bracket bottom plate 41 on the fixed bottom plate 3. The rotating shaft 42 is transversely arranged along the bridge and fixed between the support pressing plate 43 and the lower support base plate 41, the upper surface of the lower support base plate 41 is provided with a lower inner concave portion 411, the lower surface of the support pressing plate 43 is provided with an upper inner concave portion 431, and the lower support base plate 41 and the support pressing plate 43 are combined to form a round hole for the rotating shaft 42 to pass through between the lower inner concave portion 411 and the upper inner concave portion 431. The outer end of the seam crossing plate 1 is fixed on a rotating shaft 42 between the adjacent lower bracket bottom plates 41. Thus, the lower support base plate 41, the rotating shaft 42 and the support pressing plate 43 are matched, so that the expansion joint device has a longitudinal corner function.

The bottom of the bolt mounting hole 31 is mounted with a bottom plate 5, and the bottom plate 5 may be welded on the fixed bottom plate 3 in advance. The inner walls at the two ends of the waist-shaped hole are provided with bosses 32 along the inward extension, the bolt assembly 44 corresponding to each bolt mounting hole 31 comprises two bolts 441 and nuts 442 matched with the bolts, the head of each bolt 441 is placed into the waist-shaped hole from the middle of the waist-shaped hole, slides towards the two ends of the waist-shaped hole and is limited below the boss 32, and the bolts 441 upwards sequentially penetrate through the mounting holes 45 corresponding to the lower bracket bottom plate 41 and the support pressure plate 43 and are connected and fixed through the corresponding nuts 442. When the bolt 441 is installed after the bottom plate 5 is installed, the bolt 441 is placed into the bolt installation hole 31 from the top down without falling.

The bolt mounting hole 31 of the present embodiment is provided on the outer side of the fixed base plate 3, and the inner side of the fixed base plate 3 is connected to the seam crossing plate 1 by the connecting bolt 6. Moreover, the upper end of the connecting bolt 6 is fixed on the seam crossing plate 1, the lower end of the connecting bolt 6 is arranged below the fixed bottom plate 3 and is sleeved with a buffer member 7, generally, the buffer member 7 adopts a buffer spring, and the concrete installation and disassembly modes of the connecting bolt 6 and the buffer member 7 can adopt the existing bridge expansion joint device, and are not specifically described.

The detachable component 4 of the bridge expansion joint device is installed and detached in the following way:

during installation, firstly, the fixed bottom plate 3 and the steel box girder 8 are welded and fixed, then, the bolts 441 of the bolt assembly 44 are put into the bolt installation holes 31 of the fixed bottom plate 3 and respectively move to two sides to two ends of the bolt installation holes 31, then, the lower bracket bottom plate 41 is put in, then, the rotating shaft 42 on the seam crossing plate 1 is placed on the lower bracket bottom plate 41, then, the support pressing plate 43 is put in, the bolts 441 upwards sequentially pass through the installation holes 45 of the lower bracket bottom plate 41 and the support pressing plate 43, and finally, the nuts 442 are screwed. For disassembly, first, the nut 442 of the bolt assembly 44 is unscrewed, then the holder pressing plate 43, the seam crossing plate 1 and the lower holder base plate 41 are sequentially removed, and finally, the bolt 441 is moved to the middle of the bolt mounting hole 31 and upwardly removed. The mounting and dismounting mode is convenient and reliable, high in working efficiency and free of pollution, and the internal stress of the parts cannot be increased due to the fact that heat cannot be generated in the mounting and dismounting process, and the safety of the parts is improved.

Claims

1. The utility model provides a bridge expansion joint device with can dismantle function, includes to stride seam board (1) and with stride seam board matched with fixed plate (2), its characterized in that: a fixed bottom plate (3) fixed with the end part of the corresponding beam is arranged below the seam crossing plate (1), and the seam crossing plate (1) is detachably connected with the fixed bottom plate (3) through a detachable assembly (4).

2. The bridge expansion joint installation with can dismantle function of claim 1, which is characterized in that: the detachable assembly (4) comprises a lower bracket bottom plate (41), a rotating shaft (42), a support pressing plate (43) and a bolt assembly (44), the lower bracket bottom plate (41) is arranged on the corresponding bolt mounting hole (31), the support pressing plate (43) is positioned on the lower bracket bottom plate (41), the support pressing plate and the lower bracket bottom plate are provided with vertically aligned mounting holes (45), the bolt assembly (44) penetrates through the corresponding mounting holes of the support pressing plate (43) and the lower bracket bottom plate (41) and the bolt mounting holes (31) to fix the support pressing plate (43) and the lower bracket bottom plate (41) on the fixed bottom plate (3), the rotating shaft (42) is transversely arranged along the bridge and fixed between the support pressing plate (43) and the lower bracket bottom plate (41), the outer end of the seam crossing plate (1) is fixed on a rotating shaft (42) between the adjacent lower bracket bottom plates (41).

3. The bridge expansion joint installation with can dismantle function of claim 2, characterized in that: and a bottom plate (5) used for sealing the bolt mounting hole is mounted at the bottom of the bolt mounting hole (31).

4. A bridge expansion joint installation with detachable function according to claim 3, wherein: bolt mounting hole (31) are waist shape hole, there is boss (32) along inwards extending on the inner wall at waist shape hole both ends, bolt assembly (44) include two bolt (441) and with the supporting nut (442) of bolt, the head of bolt (441) is put into waist shape hole and is slided and spacing in boss (32) below to waist shape hole both ends from the middle part in waist shape hole, and bolt (441) upwards passes mounting hole (45) of corresponding lower bracket bottom plate (41) and support clamp plate (43) in proper order and connects fixedly through corresponding nut (442).

5. The bridge expansion joint installation with can dismantle function of claim 4, characterized in that: the length direction of the waist-shaped hole is consistent with the longitudinal direction of the bridge.

6. The bridge expansion joint installation with can dismantle function of claim 2, characterized in that: the upper surface of lower bracket bottom plate (41) has lower indent portion (411), the lower surface of support clamp plate (43) has last indent portion (431), and lower bracket bottom plate (41) and support clamp plate (43) are involuntarily made down indent portion (411) and last indent portion (431) between form the round hole that supplies pivot (42) to pass.

7. The bridge expansion joint installation with can dismantle function of claim 2, characterized in that: the bolt mounting holes (31) are formed in the outer side portion of the fixed bottom plate (3), and the inner side portion of the fixed bottom plate (3) is connected with the seam crossing plate (1) through connecting bolts (6).

8. The bridge expansion joint installation with can dismantle function of claim 7, which is characterized in that: the upper end of the connecting bolt (6) is fixed on the seam crossing plate (1), and the lower end of the connecting bolt (6) is arranged below the fixed bottom plate (3) and sleeved with a buffer piece (7).

9. The bridge expansion joint installation with can dismantle function of claim 1, which is characterized in that: the beam end is a steel box beam (8), and the fixed bottom plate (3) is welded and fixed with the steel box beam (8) through a fixed rib plate (9).

10. A bridge expansion joint installation with detachable function according to any one of claims 1 to 9, wherein: and the fixed plate (2) is provided with an anchoring bolt (10) used for being connected with the end part of the corresponding beam.