CN216193991U

CN216193991U - Bridge expansion joint device for canal bridge

Info

Publication number: CN216193991U
Application number: CN202121691265.2U
Authority: CN
Inventors: 徐速; 徐斌; 尤其; 喻飞; 郝美军; 卓佩达
Original assignee: Ningbo Roaby Technology Industrial Group Co ltd
Current assignee: Ningbo Roaby Technology Industrial Group Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-04-05
Anticipated expiration: 2031-07-22

Abstract

The utility model relates to a bridge expansion joint device for a channel bridge, wherein two side edges of a first water stop belt are respectively connected on corresponding supporting plates in a sealing way through sealing pieces, so that two sides of the first water stop belt can be effectively connected with a sealing structure to meet the sealing requirement of the channel bridge, and the first side of a pressure plate is connected on one sealing piece in a sealing way, and the second side of the pressure plate is at least partially sealed above the other sealing piece, which is equivalent to that another sealing piece is additionally arranged on the basis of the first water stop belt, so that most of water is intercepted by the sealing structure at the pressure plate, only a small part of water flows into the first water stop belt, compared with the traditional sealing form of a single water stop belt, the secondary sealing effect is better, and once the expansion joint needs to be maintained, the internal structure of the expansion joint can be exposed by independently disassembling the pressure plate, and the sealing piece of the sealing water stop belt is prevented from being disassembled, the sealing effect of the whole expansion joint device cannot be influenced.

Description

Bridge expansion joint device for canal bridge

Technical Field

The utility model relates to the field of channel bridges, in particular to a bridge expansion joint device for a channel bridge.

Background

The bridge is an open permanent structure spanning over obstacles such as rivers, deep valleys and built roads, the beam end of the bridge can generate creep deformation due to the action of factors such as temperature change, concrete shrinkage and creep deformation, variable load and the like, and in order to adapt to the characteristics of the bridge structure, expansion joints capable of freely deforming are required to be arranged in the bridge structure and between the beam end and a bridge abutment back wall so as to ensure that the bridge deck is smooth and protect the structure.

The channel bridge is a common bridge, and not only can be used as a water diversion channel, but also can be used for people to pass. In the aspect of the structure, the canal bridge is also the same as a conventional bridge, not only has the length direction of expansion and contraction, but also has horizontal and vertical corners at special positions, and meanwhile, in order to meet the water supply requirement, the height of each position of the canal bridge is required to be kept sealed, and the requirement of the existing bridge expansion joint device is hardly met.

For example, chinese utility model patent with patent number CN201721464228.1 discloses "an easily change bridge expansion joint watertight fittings", among this watertight fittings, the both sides face that sets up pre-buried steel sheet department at bridge concrete structure is equipped with waterproof component respectively, waterproof component includes the connecting plate, connecting plate welded fastening is at the tip of pre-buried steel sheet, welded fastening has the angle clip on the connecting plate, the angle clip is connected with long angle steel through connecting bolt and nut, it has the rubber waterstop to compress tightly through connecting bolt and nut between bridge concrete structure tip and the long angle steel, the bridge concrete structure at bridge expansion joint both ends is connected to the rubber waterstop.

The waterproof assembly compresses the rubber waterstop through the connecting bolts and the nuts, and the interval exists between the two adjacent bolts, so that the sealing effect is not ideal, the waterproof assembly can only adapt to rainwater with small water flow and can not flow on a bridge floor for a long time, for a diversion channel, part of water in the channel flows in a large and long-time manner, and certain pressure can be generated on an expansion joint due to the fact that water has certain depth.

But discovery in actual construction, because the clamp plate is located the top of whole expansion joint device, the top surface of clamp plate forms the bridge floor of canal bridge, if need maintain other parts of expansion joint, can only dismantle the clamp plate is whole, so, original sealed will suffer destruction, especially waterstop self is under the sealed pressure of long-term march and is established the effect, and the side has deformation to a certain extent already, when pressing again and establish the back, leakproofness greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a bridge expansion joint device for a channel bridge, which effectively avoids the detachment of a sealing plate, aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a bridge expansion joint device for canal bridge, includes two backup pads and clamp plate, two the backup pad sets up respectively on the end roof beam portion of bridge expansion joint both sides and all extends, two all is equipped with the gasket in the backup pad, two sides of first waterstop are respectively through gasket and sealing connection in the backup pad that corresponds, the first side sealing connection of clamp plate is on one of them gasket, and the at least part of second side is located the top of another gasket, and is equipped with the sealing strip between the second side of this clamp plate and the corresponding gasket.

In order to ensure that the sealing strip can be with the second side edge sealing of first waterstop on the supporting seat that corresponds, the sealing strip is pressed the side of waterstop through first retaining member and is established in the backup pad that corresponds, just set up the first through-hole that supplies first retaining member to wear to establish in sealing strip and the backup pad.

In order to avoid the infirm sealing between the first side of the pressing plate and the sealing sheet on the same side, preferably, the first side of the pressing plate is sealed on the corresponding sealing sheet through a second locking member, and the pressing plate and the sealing sheet are both provided with second through holes for the second locking member to pass through.

The sealing strip on the second side of the pressure plate can have different design positions, and preferably, a gap is reserved between the second side of the pressure plate and the top of the other sealing strip, and the sealing strip is arranged in the gap and extends in the same direction as the pressure plate.

In order to avoid the deformation of the first water stop under pressure after bearing the load, preferably, the bottom of each of the two support plates is provided with a support plate extending towards the other side, each support plate is at least partially below the first water stop, and the top of each support plate is abutted against the bottom of the first water stop.

In order to ensure that all parts of the water stop in the length direction can be uniformly stressed, preferably, the bottom of each supporting plate is provided with at least two supporting plates which are arranged at intervals along the extending direction of the bottom, and the two supporting plates connected to the supporting plates are distributed in a staggered mode on the whole.

In order to ensure that all positions in the width direction of the water stop belt are uniformly deformed after bearing load, at least two supporting pieces extending upwards are arranged on each supporting plate, and the supporting pieces are arranged on the supporting plates at intervals.

Specifically, support piece includes pedestal and bracing piece, the bracing piece extends and arranges along the width direction at bridge expansion joint the below of waterstop, this bracing piece is opening arc structure up to, to every layer board, a set of pedestal formation that the homonymy was arranged is to the support of same root support pole.

In order to further improve the sealing effect of the sealing pieces and the supporting plates, each supporting plate is convexly provided with a convex strip on the upper surface contacted with the corresponding side edge of the first water stop strip, and the convex strips extend along the length direction of the supporting plates. The sand grip enables the surface of the water stop belt to deform slightly, and the sealing effect at the position is effectively improved.

Specifically, the raised lines are steel wires welded on the upper surface of the corresponding first support plate or the second support plate.

Compared with the prior art, the utility model has the advantages that: in the bridge expansion joint device for the canal bridge, two side edges of a first water stop are respectively connected on corresponding supporting plates in a sealing mode through sealing pieces, so that the sealing design of the first water stop can effectively connect two sides of the first water stop with a sealing structure to meet the sealing requirement of the canal bridge, and the first side of a pressure plate is connected on one sealing piece in a sealing mode, and the second side of the pressure plate is at least partially sealed above the other sealing piece, namely, another seal is additionally arranged on the basis of the first water stop, so that most of water is intercepted by the sealing structure at the pressure plate, only a small part of water flows into the first water stop, compared with the traditional sealing mode of a single water stop, the secondary sealing effect is better, and once an expansion joint needs to be maintained, the pressure plate can be independently disassembled to expose the internal structure of the expansion joint, the sealing piece of the sealing water stop is prevented from being disassembled, and the sealing effect of the whole expansion joint device cannot be influenced.

Drawings

Fig. 1 is a schematic view of an overall structure of an expansion joint device in an embodiment of the present invention;

FIG. 2 is a schematic view of the entire structure of FIG. 1 with the end beam portion omitted;

FIG. 3 is an enlarged schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic diagram of a support member and a pallet according to an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, a preferred embodiment of the present invention. In this embodiment, this a bridge expansion joint device for channel bridge includes two backup pads 1 and clamp plate 2, two backup pads 1 set up respectively on the end roof portion 100 of bridge expansion joint both sides and all extend along the length direction of bridge expansion joint, all be equipped with gasket 3 on two backup pads 1, two sides of waterstop 4 are respectively through gasket 3 and sealing connection is on the backup pad 1 that corresponds, the first side sealing connection of clamp plate 2 is on one of them gasket 3, the second side is located the top of another gasket 3 at least locally, and this clamp plate 2 the second side with correspond and be equipped with sealing strip 5 between the gasket 3.

In order to ensure the sealing between the support plates 1 and the water stop 4, a convex strip 7 is convexly arranged on the upper surface of each support plate 1, which is in contact with the corresponding side edge of the water stop 4, and the convex strip 7 extends along the length direction of the support plate 1. The convex strip 7 can be in various forms, and the convex strip 7 is a steel wire welded on the upper surface of the corresponding first support plate 1 or the corresponding second support plate 1. Through the effect of steel wire like this, the surface of waterstop 4 can produce deformation because of the effect of steel wire to have better sealed effect.

In this embodiment, the sealing sheet 3 may have a plurality of sealing manners, the sealing sheet 3 presses the side edge of the water stop 4 on the corresponding support plate 1 through the first locking member 31, and the sealing sheet 3 and the support plate 1 are provided with a first through hole 3a for the first locking member 31 to penetrate through. And expansion joint device's first seal is realized through clamp plate 2, and the first side of above-mentioned clamp plate 2 is sealed on the gasket 3 that corresponds through second retaining member 32, and all offers the second through-hole 3b that supplies second retaining member 32 to pass on clamp plate 2 and this gasket 3. A gap 30 is left between the second side of the pressure plate 2 and the top of the other sealing sheet 3, and the sealing strip 5 is arranged in the gap and extends in the same direction as the pressure plate 2.

In order to ensure the support of the water stop 4, the bottom parts of the two support plates 1 are provided with support plates 6 extending towards the other side, each support plate 6 is at least partially below the water stop 4, and the top part of each support plate is abutted against the bottom part of the water stop 4. The bottom of each supporting plate 1 in this embodiment is provided with at least two supporting plates 6 arranged at intervals along the extending direction of the supporting plate 1, and the supporting plates 6 connected to the two supporting plates 1 are distributed in a staggered manner on the whole. Furthermore, each pallet 6 is provided with at least two upwardly extending supports 61, each support 61 being spaced apart on the pallet 6. Specifically, the supporting member 61 includes a seat body 611 and a supporting rod 612, the supporting rod 612 extends along the width direction of the bridge expansion joint and is arranged below the water stop 4, the supporting rod 612 is in an arc structure with an upward opening, and for each supporting plate 6, a group of seat bodies 611 arranged on the same side form a support for the same supporting rod 612.

Also, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, may be used in the description and claims to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are determined based on the example orientations shown in the figures. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims

1. The utility model provides a bridge expansion joint device for canal bridge, includes two backup pads (1) and clamp plate (2), two backup pad (1) sets up respectively on the end beam portion (100) of bridge expansion joint both sides and all extends its characterized in that along the length direction at bridge expansion joint: two all be equipped with gasket (3) on backup pad (1), two sides of waterstop (4) are respectively through gasket (3) and sealing connection on backup pad (1) that corresponds, the first side sealing connection of clamp plate (2) is on one of them gasket (3), and the second side is located the top of another gasket (3) at least partially, and the second side of this clamp plate (2) with correspond and be equipped with between gasket (3) sealing strip (5).

2. The bridge expansion joint installation of claim 1, wherein: the side pressure of gasket (3) through first retaining member (31) with waterstop (4) is established on backup pad (1) that corresponds, just offer first through-hole (3a) that supply first retaining member (31) to wear to establish on gasket (3) and backup pad (1).

3. The bridge expansion joint installation of claim 2, wherein: the first side of clamp plate (2) is sealed on corresponding gasket (3) through second retaining member (32), just all offer second through-hole (3b) that supply second retaining member (32) to pass on clamp plate (2) and this gasket (3).

4. The bridge expansion joint installation of claim 1, wherein: a gap (30) is reserved between the second side of the pressing plate (2) and the top of the other sealing piece (3), and the sealing strip (5) is arranged in the gap and extends in the same direction as the pressing plate (2).

5. The bridge expansion joint installation of claim 1, wherein: the bottom of two backup pad (1) all is equipped with layer board (6) that extend towards the opposite side, each layer board (6) all at least partially be with the below of waterstop (4), and the top offsets with the bottom of waterstop (4).

6. The bridge expansion joint installation of claim 5, wherein: the bottom of every backup pad (1) all is equipped with two at least layer boards (6) of interval arrangement along self extending direction, and two layer board (6) that connect on backup pad (1) are the staggered distribution on the whole.

7. The bridge expansion joint installation of claim 6, wherein: at least two supporting pieces (61) extending upwards are arranged on each supporting plate (6), and the supporting pieces (61) are arranged on the supporting plates (6) at intervals.

8. The bridge expansion joint installation of claim 7, wherein: the supporting piece (61) comprises a base body (611) and a supporting rod (612), the supporting rod (612) extends along the width direction of the bridge expansion joint and is arranged below the water stop belt (4), the supporting rod (612) is of an arc structure with an upward opening, and for each supporting plate (6), a group of base bodies (611) arranged on the same side form a support for the same supporting rod (612).

9. A bridge expansion joint installation according to any one of claims 1 to 8, wherein: each support plate (1) is convexly provided with a convex strip (7) on the upper surface contacted with the corresponding side edge of the water stop belt (4), and the convex strips (7) extend along the length direction of the support plates (1).

10. The bridge expansion joint installation of claim 9, wherein: the convex strips (7) are steel wires welded on the upper surfaces of the first supporting plates (1) or the second supporting plates (1).