CN111005311A

CN111005311A - Bridge deck and bridge expansion joint structure

Info

Publication number: CN111005311A
Application number: CN201911208229.3A
Authority: CN
Inventors: 张建勋; 惠涛; 姚玲玲; 黄正强; 牛文利
Original assignee: Zhengzhou Communications Planning Survey & Design Institute
Current assignee: Zhengzhou Communications Planning Survey & Design Institute
Priority date: 2019-11-30
Filing date: 2019-11-30
Publication date: 2020-04-14

Abstract

The invention relates to the field of bridge engineering construction, in particular to a bridge deck and a bridge expansion joint structure. The bridge deck comprises a deck body and an anchoring base; the main body of the deck slab is formed by pouring concrete, and one end for butting with the adjacent bridge deck slab is provided with an anchoring base; the anchoring base is used for detachably fixing a comb plate of the bridge expansion device and comprises a horizontal steel plate and a vertical steel plate which are arranged in an L shape; the horizontal steel plate is used for forming a top surface pouring template of the panel main body so as to form a corresponding part of the top surface of the panel main body; the top surface of the horizontal steel plate is used for supporting the comb plate; the vertical steel plate is used for forming an end face pouring template of the bridge deck to form a corresponding part of the end face of the deck main body; the anchoring bases are provided with bridge deck anchoring ribs, and the bridge anchoring ribs on the two anchoring bases are poured in the deck main body. Above-mentioned technical scheme can conveniently realize the pouring of panel main part and the fixed of anchor base, and the operation process is simple, is favorable to improving the operating efficiency.

Description

Bridge deck and bridge expansion joint structure

Technical Field

The invention relates to the field of bridge engineering construction, in particular to a bridge deck and a bridge expansion joint structure.

Background

The bridge deck is also called a lane board and is a bearing structure on the bridge. In order to meet the requirements of expansion with heat and contraction with cold, the butt joint positions of two adjacent bridge deck plates need to be provided with bridge expansion joints, and the bridge expansion joints are provided with bridge expansion devices to realize the connection of bridge decks. The water stop is arranged below the bridge expansion device, is a waterproof structure of the bridge expansion joint, is generally formed by a groove-shaped sealing rubber belt, extends along the width direction of the bridge, and is used for leading water to two sides of the width direction of the bridge and discharging the water.

One widely used bridge expansion device in the prior art is a comb plate expansion device, also called a comb-tooth bridge expansion device, and includes a first tooth plate, a second tooth plate and an anchoring base, as disclosed in the chinese patent application with application publication No. CN 104452581A. The first toothed plate and the second toothed plate are comb-shaped plates, the front ends of the comb-shaped plates are provided with tooth-shaped structures matched with each other, and the rear ends of the comb-shaped plates are provided with bolt holes. The anchoring base comprises angle steel, and a horizontal part at the top of the angle steel forms a horizontal steel plate for supporting the corresponding first toothed plate or second toothed plate; be equipped with the nut seat on the top horizontal segment of angle steel, the nut seat forms the anchor connecting seat, corresponds with the bolt hole on first pinion rack and the second pinion rack, uses the bolt can be fixed first pinion rack and second pinion rack to the anchor base on.

However, the existing bridge expansion joint structure needs to be welded on site, the anchoring base is welded to the steel plate or the steel bar in the beam body (namely the bridge deck) by using the connecting steel plate or the steel bar, and then the concrete is poured, so that the operation process is complex, and the operation efficiency is low.

Disclosure of Invention

The invention aims to provide a bridge deck, which solves the problems of complex connecting operation process and low operation efficiency of the existing bridge deck and an anchoring base. Meanwhile, the invention also aims to provide a bridge expansion joint structure which is convenient to construct and high in operation efficiency.

The bridge deck plate adopts the technical scheme that:

the bridge deck comprises a deck body and an anchoring base;

the main body of the panel is formed by pouring concrete, and one end of the main body of the panel, which is butted with an adjacent bridge deck, is provided with an anchoring base;

the anchoring base is used for detachably fixing a comb plate of the bridge expansion device and comprises a horizontal steel plate and a vertical steel plate which are arranged in an L shape;

a horizontal steel plate for forming a top casting form of the panel body to form a corresponding portion of the top surface of the panel body; the top surface of the horizontal steel plate is used for supporting the comb plate;

the vertical steel plate is used for forming an end face pouring template of the bridge deck to form a corresponding part of the end face of the deck main body;

the anchoring bases are provided with bridge deck anchoring ribs, and the bridge anchoring ribs on the two anchoring bases are poured in the deck main body.

The technical scheme has the beneficial effects that: by adopting the technical scheme, the horizontal steel plate and the horizontal steel plate of the anchoring base can be used as templates when the panel main body is poured, and are respectively used for forming the corresponding parts of the top surface and the end surface of the panel main body, and the anchoring rib body can ensure the reliable fixation between the anchoring base and the panel main body, so that the pouring of the panel main body and the fixation of the anchoring base can be conveniently realized, the operation process is simple, and the operation efficiency is favorably improved.

As a preferred technical scheme, the bridge deck anchoring rib body comprises an anchoring base connecting part which is of an L-shaped structure and comprises a vertical connecting part and a horizontal connecting part;

the vertical connecting part is welded and fixed below the horizontal steel plate;

and the horizontal connecting part is welded and fixed on one side of the vertical steel plate in the horizontal direction.

The technical scheme has the beneficial effects that: the anchoring base connecting part adopts the vertical connecting part and the horizontal connecting part which are arranged in an L shape to be firmly connected with the horizontal steel plate and the vertical steel plate, so that the connecting strength of the anchoring base is improved.

As a preferable technical solution, the bridge deck anchoring rib body is a U-shaped structure as a whole, and an opening of the U-shape faces downward.

The technical scheme has the beneficial effects that: adopt above-mentioned scheme simple structure, be convenient for make.

As a preferable technical scheme, a paving layer rib body is arranged on the horizontal connecting part, and the top of the paving layer rib body is higher than the horizontal connecting part and is buried in the paving layer above the bridge deck.

The technical scheme has the beneficial effects that: be equipped with the layer muscle body of mating formation on the horizontal joint portion and be convenient for strengthen the layer of mating formation, can further make things convenient for the construction and guarantee construction quality.

As a preferred technical scheme, the paving layer rib body is of a U-shaped structure, and the U-shaped opening faces downwards.

The technical scheme has the beneficial effects that: the paving layer rib body adopts the scheme, so that the structure is simple, and the manufacturing is convenient.

As a preferred technical scheme, the paving layer rib body is in contact with one side, far away from the vertical steel plate, of the horizontal steel plate.

The technical scheme has the beneficial effects that: adopt above-mentioned scheme to be convenient for the location of the layer muscle body of mating formation to the muscle body of mating formation can be fixed to horizontal steel sheet on, is favorable to improving the joint strength of the muscle body of mating formation.

As a preferred technical scheme, anchor bolt sleeves are welded and fixed on the anchoring base, rib body intervals are arranged between the two anchor bolt sleeves which are close to each other along the width direction of the bridge deck, and the rib body intervals are used for the anchoring rib bodies of the bridge deck to pass through.

The technical scheme has the beneficial effects that: adopt above-mentioned structure can strengthen the joint strength of decking anchor muscle body and anchor base, be favorable to strengthening the fixed strength of anchor base simultaneously.

The bridge expansion joint structure adopts the technical scheme that:

the bridge expansion joint structure comprises a bridge deck and a bridge expansion device;

the bridge deck comprises a first bridge deck and a second bridge deck, and a bridge expansion joint is arranged between the first bridge deck and the second bridge deck;

the bridge expansion device comprises a comb plate and an anchoring base, the comb plate comprises a first tooth plate and a second tooth plate, and the first tooth plate and the second tooth plate are respectively used for being detachably fixed on the corresponding anchoring base;

the bridge deck comprises a deck body and an anchoring base;

The technical scheme has the beneficial effects that: by adopting the technical scheme, the horizontal steel plate and the horizontal steel plate of the anchoring base can be used as templates when the panel main body is poured and are respectively used for forming the corresponding parts of the top surface and the end surface of the panel main body, and the anchoring rib body can ensure the reliable fixation between the anchoring base and the panel main body, so that the pouring of the panel main body and the fixation of the anchoring base can be conveniently realized, the operation process is simple, and the operation efficiency is favorably improved; simultaneously, the top surface of horizontal steel sheet is used for supporting bridge telescoping device's fishback, can realize the isolation of fishback and panel main part, can not disturb the concrete when the dismouting is convenient for the panel main part, can easily realize expansion joint device's installation and maintenance, construction convenience.

As a preferred technical scheme, a waterstop step is arranged on the end face of the bridge deck, and the waterstop step is provided with a horizontal step wall;

the bridge expansion joint structure comprises a water stop, and the water stop forms a water chute extending along the width direction of the bridge;

the horizontal step wall is arranged upwards and used for supporting horizontal flanges on two sides of the water stop in the width direction.

The technical scheme has the beneficial effects that: the installation form is adopted, so that the water stop belt is convenient to install and reliably fixed.

As a preferred technical scheme, an elastic rubber mold and elastic sealant are arranged between vertical steel plates on two bridge deck plates, and the elastic rubber mold and the elastic sealant are sequentially arranged above the water stop belts;

the elastic rubber mold is clamped between the two vertical steel plates and forms a rubber filling groove for filling rubber liquid together with the two vertical steel plates;

and the elastic sealant is formed by curing the glue solution filled in the glue filling groove and is used for isolating the space above the elastic sealant from the water stop belt below the elastic sealant.

The technical scheme has the beneficial effects that: the elastic rubber mold can adapt to the change of the distance of the bridge expansion joint by means of self elasticity, the side wall of the rubber filling groove is formed by two vertical steel plates, the surface is clean, the sealing performance of elastic sealing glue formed by filling and curing glue is guaranteed, a good sealing effect is achieved, water flow mixed impurities are prevented from flowing into the water stop belt, the water stop belt is prevented from being blocked, and the water stop belt at the bridge expansion joint is prevented from losing efficacy due to blocking.

The above-described preferred embodiments may be adopted alone, or two or more embodiments may be arbitrarily combined when they can be combined, and the embodiments formed by the combination are not specifically described here and are included in the description of the present patent.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a bridge expansion joint structure according to the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 taken perpendicular to the direction of extension of the bridge expansion joint;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a right side view of FIG. 2, with a portion of the panel body hidden;

FIG. 5 is a schematic view of the panel of FIG. 1 with the main body of the panel removed;

fig. 6 is a side view of fig. 5 viewed in a direction perpendicular to the extension of the bridge expansion joint;

FIG. 7 is a schematic view of a bridge expansion joint structure according to an embodiment 2 of the present invention in a use state;

fig. 8 is a cross-sectional view of fig. 7, the cross-section being perpendicular to the direction of extension of the bridge expansion joint.

The names of the components corresponding to the corresponding reference numerals in the drawings are: 1-a first deck slab; 2-a second deck slab; 3-an asphalt pavement layer; 4-a first anchoring base; 41-a first horizontal steel plate; 42-a first vertical steel plate, 43-a first L-shaped clamping body and 44-a toothed plate clamping groove; 5-a second anchoring base; 51-a second horizontal steel plate; 52-a second vertical steel plate, 53-a second L-shaped clamping body; 6-a first bolt; 7-anchor bolt sleeve; 8-long anchoring steel bars; 9-short anchoring steel bars; 10-an elastic sealant; 11-elastic rubber mold; 12-water stop belt; 13-a first toothed plate; 131-clamping step; 14-a second bolt; 15-a second toothed plate; 16-anchoring holes, 17-anchor bolt sleeve fixing holes; 18-bridge expansion joints; 19-water stop step.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The features and properties of the present invention are described in further detail below with reference to examples.

As shown in fig. 1 to 6, an embodiment 1 of the bridge expansion joint structure of the present invention includes a bridge deck and a comb plate, the bridge deck is divided into a first bridge deck 1 and a second bridge deck 2, a bridge expansion joint 18 is formed between the first bridge deck 1 and the second bridge deck 2, and both the first bridge deck 1 and the second bridge deck 2 include a deck main body and an anchoring base. The main body of the panel is formed by pouring concrete, and one end of the main body of the panel, which is used for being butted with an adjacent bridge deck, is provided with an anchoring base; the anchoring base is divided into a first anchoring base 4 and a second anchoring base 15. The anchor base supplies corresponding fishback removable fixed, and the fishback includes first pinion rack 13, second pinion rack 15. The comb plate and the anchoring base jointly form a bridge expansion device.

Taking the first anchoring base 4 as an example, as shown in fig. 1 and fig. 2, the first anchoring base 4 includes a first horizontal steel plate 41, a first L-shaped clamping body 43 is disposed on a rear side of the first horizontal steel plate 41, and a first vertical steel plate 42 is disposed on a front side. The first vertical steel plates 42 are arranged in an L-shape with the first horizontal steel plates 41, the first horizontal steel plates 41 are used for forming a top casting formwork of the panel body to form corresponding parts of the top surface of the panel body; the first vertical steel plate 42 is used to form an end face casting formwork of the bridge deck to form a corresponding portion of the end face of the deck body, and the top of the corresponding side seam wall of the bridge expansion joint 18 is formed by the first vertical steel plate 42. The first horizontal steel plate 41, the first L-shaped clamping body 43 and the first vertical steel plate 42 are integrally formed. Be equipped with anchor bolt cover fixed orifices 17 on the horizontal steel sheet, during the top embedding anchor bolt cover fixed orifices 17 of corresponding anchor bolt cover 7 and with horizontal steel sheet welded fastening, be equipped with the screw hole along the axis in the anchor bolt cover 7, form the anchor connector, the anchor connector be used for with the fishback of first bolt 6 adaptation with the fixed fishback of corresponding side, first bolt 6 forms fishback anchor assembly.

As shown in fig. 2, 4 and 5, in order to fix the first anchoring base 4, the first anchoring base 4 is welded and fixed with long anchoring steel bars 8 and short anchoring steel bars 9, the long anchoring steel bars 8 form bridge deck anchoring steel bars, and the short anchoring steel bars 9 form pavement layer steel bars. The long anchoring reinforcing steel bars 8 and the short anchoring reinforcing steel bars 9 are both U-shaped with downward openings and are welded into a whole. The long anchoring steel bar 8 comprises an anchoring base connecting part which is of an L-shaped structure and comprises a vertical connecting part and a horizontal connecting part; the vertical connecting portion is welded and fixed below the first horizontal steel plate 41, and the horizontal connecting portion is welded and fixed on one side of the first vertical steel plate 42 in the horizontal direction. When the deck slab is manufactured, the long anchoring reinforcing bars 8 are fixed integrally with the first deck slab 1 by concrete casting.

As shown in fig. 4, 5 and 6, the anchor bolt sleeves 7 are arranged in groups of four, and are arranged in a matrix, a rib body interval is arranged between two anchor bolt sleeves 7 which are close to each other along the width direction of the bridge deck, and the rib body interval is used for the middle of the bridge deck anchoring rib body to pass through, so that the fixing is reliable. Short anchor reinforcing bar 9 also is the U-shaped structure of opening down, and the horizontal connection part of the long anchor reinforcing bar 8 of top protrusion of short anchor reinforcing bar 9 can be consolidated pitch layer of pavement 3, and simultaneously, short anchor reinforcing bar 9 contacts and welded fastening with the back side of first horizontal steel sheet 41, is favorable to improving overall structure intensity.

The first horizontal steel plate 41 is horizontally arranged, and the top surface thereof is used for supporting the first toothed plate 13 on the corresponding side; the first L-shaped clamping body 43 and the first horizontal steel plate 41 enclose a toothed plate clamping groove 44 at the rear of the anchoring connecting body; the notch of pinion rack draw-in groove 44 is towards the place ahead, and the vallecular cavity of pinion rack draw-in groove 44 forms the joint space, and the joint space supplies the back tip card of corresponding side fishback to go into, and the top cell wall of pinion rack draw-in groove 44 forms and is used for carrying out spacing vertical limit structure along vertical direction to fishback's back tip. Correspondingly, the rear end of the first toothed plate 13 is provided with a clamping step 131, and the clamping step 131 forms a clamping part; the thickness of the clamping part is smaller than the front side part of the comb plate and is used for being clamped into the clamping space, and the width of the clamping part is larger than the depth of the clamping space. Meanwhile, the first L-shaped clamping body 43 is higher than the first horizontal steel plate 41, so that a paving boundary of the asphalt paving layer 3 is formed, and asphalt is conveniently paved.

As shown in fig. 1 and 3, the first tooth plate 13 and the second tooth plate 15 are arranged along the length direction of the bridge expansion joint 18 (i.e. the width direction of the bridge), so as to form a plurality of modules, and when in use, a proper number of modules can be arranged according to the width of the bridge deck. The front end of each comb plate is provided with a tooth-shaped structure, and the rear end is provided with an anchoring hole 16. Of course, it should be noted that "front" and "rear" are referred to each comb plate, and one end of each comb plate provided with the tooth-shaped structure is a front end, and the other end is a rear end; in addition, for the sake of clarity of the description of the invention, the first anchoring base 4 and the second anchoring base 15 have a front-to-rear direction, here coinciding with the respective comb plates. The length of the first toothed plate 13 is greater than the length of the second toothed plate 15, and the first toothed plate 13 can span the bridge expansion joint 18.

As shown in fig. 2 and 6, the second anchoring base 5 has a structure similar to the first anchoring base 4, and includes a second horizontal steel plate 51, a second vertical steel plate 52, and a second L-shaped clip body 53, only the sizes of some parts are different.

Through the first anchoring base 4 and the second anchoring base 15 of the above structure, the first toothed plate 13 and the second toothed plate 15 can be completely separated from the concrete. During the assembly, can be directly go into the back tip card of first pinion rack 13 and second pinion rack 15 in pinion rack draw-in groove 44, then use first bolt 6 and second bolt 14 to pass anchor hole 16 on first horizontal steel sheet 41 and the second horizontal steel sheet 51 respectively, threaded connection is fixed to crab-bolt cover 7 on, easy dismounting.

Meanwhile, the top groove wall of the tooth plate clamping groove 44 forms a vertical limiting structure used for limiting the rear end part of the comb plate along the vertical direction, and can assist in bearing the stress of the comb plate. Of course, the closer the width of the tooth plate clamping groove 44 is to the thickness of the clamping step 131 of the comb plate, the smaller the gap between the two is, so as to better share the stress of the first bolt 6 and the second bolt 14. However, since the tooth plate catching groove 44 has a certain depth, a vertical gap between the tooth plate catching groove 44 and the catching step 131 may be appropriately increased in consideration of the convenience of assembly. In addition, when the first tooth plate 13 and the second tooth plate 15 are disassembled, the first tooth plate 13 and the second tooth plate 15 can slide into the tooth plate clamping grooves 44 in the horizontal direction by using the front-back distance existing between the tooth-shaped parts of the first tooth plate 13 and the second tooth plate 15.

The fore-and-aft direction size of the anchoring base corresponding to the second toothed plate 15 is larger than the fore-and-aft direction size of the second toothed plate 15, the tooth profile structure of the first toothed plate 13 is used for supporting the anchoring base corresponding to the second toothed plate 15, a simply supported comb tooth telescopic device is formed, the simply supported comb tooth telescopic device can better reduce the stress of the first bolt 6, and the structural reliability is further ensured.

In addition, the bridge expansion device further comprises a waterproof structure, and the waterproof structure comprises elastic sealant 10, an elastic rubber mold 11 and a water stop belt 12. Horizontal turn-ups are arranged on two sides of the horizontal direction of the water stop 12, a water stop step 19 is arranged at one end, close to each other, of the first bridge deck plate 1 and the second bridge deck plate 2, the water stop step is provided with an upward horizontal step wall, and the horizontal turn-ups are supported on the horizontal step wall of the water stop step 19. The elastic rubber mold 11 is a rubber foaming sponge strip, the bottom surface of the elastic rubber mold is supported on a horizontal flanging of the water stop belt 12, and the top surface of the elastic rubber mold, the first vertical steel plate 42 and the second vertical steel plate 52 form a rubber filling groove for filling rubber liquid; the elastic sealant 10 is formed by curing a glue solution filled in the glue filling groove and is used for isolating the upper space from the lower water stop 12, and the glue solution is double-component polyurethane in the embodiment. The elastic sealant is a composite material consisting of liquid high molecular material, filler, plasticizer and other components, and is a material which forms an elastomer through a curing reaction under the action of a curing agent or air and water; the elastic sealant has two functions of bonding and sealing, and the currently commonly used elastic sealants include polyurethane sealant (single-component and double-component), polysulfide sealant, organosilicon sealant and MS sealant.

When the bridge deck slab is manufactured, firstly, the long anchoring steel bars 8 are welded and fixed on the horizontal steel plates and the vertical steel plates of the corresponding anchoring bases, the anchor bolt sleeves 7 are welded and fixed on the horizontal steel plates of the corresponding anchoring bases, the short anchoring steel bars 9 are welded and fixed on the long anchoring steel bars 8 and the horizontal steel plates, then the positions of the anchoring bases are adjusted, concrete is poured, and after the concrete is solidified, the bridge deck slab can be formed. When assembling bridge expansion joint structure, install the waterstop between first decking 1 and second decking 2 earlier, then pack into elastic glue mould 11, pour into the glue solution solidification again and form sealed glue 10 of elasticity, at last with the fishback through the bolt anchor to the horizontal steel sheet of anchor base on can.

Embodiment 2 of the bridge expansion joint structure of the present invention: the difference between this embodiment and embodiment 1 is that, in this embodiment, as shown in fig. 7 and fig. 8, the top surface of the elastic rubber mold 11 is a corrugated structure, which is substantially a sine wave in this embodiment, the waveform of the corrugated structure extends along the width direction of the bridge expansion joint 18, the corrugated structure has one trough and two peaks, the trough is located in the middle of the bridge expansion joint in the width direction, and the peak is located between the wall of the bridge expansion joint and the trough; correspondingly, the bottom surface of the elastic sealant 10 is matched with the top surface of the elastic rubber mold in shape and is also of a corrugated structure, in the forming process of the elastic sealant 10, an auxiliary forming mold is arranged on the top surface of the elastic sealant 10 and is arranged in a manner of being aligned with the bridge expansion joint 18, the shape of the middle part of the bottom surface of the auxiliary forming mold is the same as that of the middle part of the top surface of the elastic rubber mold 11 and is used for forming the middle part of the top surface of the elastic sealant 10, and the part, located between two wave crests of the corrugated structure, of the top surface of the elastic sealant 10 is parallel to the bottom surface; after the glue solution poured into the glue pouring groove is solidified, the auxiliary forming die is removed, so that the elastic sealant 10 is of a corrugated structure as a whole.

Like this, sealed glue 10 of elasticity receives the extrusion back along bridge expansion joint 18's width direction, and the mid portion can the bending deformation downwards, is favorable to the structural deformation, can adapt to the flexible of bridge expansion joint better, avoids upwards warping and produces the friction with the fishback.

In addition, in the embodiment, the top surfaces of the parts of the elastic sealant 10 along the two sides of the bridge expansion joint 18 in the width direction are planes, so that the two sides of the elastic sealant 10 in the width direction can have thicker thickness, and the elastic sealant can be firmly bonded with the wall of the bridge expansion joint, so that the sealing performance and the structural strength are improved; meanwhile, the elastic rubber mold 11 on the lower layer of the elastic sealant 10 can provide a deformation space for the elastic sealant 10, and can assist in the restoration of the deformed structural sealing layer formed by the elastic sealant 10.

In other embodiments, the corrugated structure may have other waveforms, such as isosceles triangle wave, isosceles trapezoid wave, etc.; in the case of a larger width of the bridge expansion joint 18, the corrugated structure may have more troughs and more crests.

An embodiment 3 of a bridge expansion device of the present invention is different from embodiment 1 in that the bridge deck anchoring rib body in embodiment 1 is made of a steel bar and has a U-shaped structure, and in this embodiment, the bridge deck anchoring rib body is formed of an anchoring steel plate, the anchoring steel plate extends out of the edge of the horizontal steel plate, and two adjacent side surfaces of the anchoring steel plate are respectively welded to the horizontal steel plate and the vertical steel plate of the anchoring base.

Additionally, in other embodiments, the deck plate tendon may also be other shapes, such as M-shaped, rectangular, etc. Furthermore, in other embodiments, the bridge deck anchoring ribs may be disposed in a plurality of vertical directions, and a part of the bridge deck anchoring ribs may be connected only with the horizontal steel plates of the anchoring base or only with the vertical steel plates of the anchoring base.

An embodiment 4 of a bridge expansion device of the present invention is different from embodiment 1 in that, in embodiment 1, a pavement layer rib is provided on a horizontal connection portion of a bridge deck anchoring rib, and in this embodiment, no pavement layer rib is provided on the bridge deck anchoring rib. In other embodiments, if the paving layer rib body needs to be arranged, the paving layer rib body can also be welded and fixed on the horizontal steel plate; in addition, in other embodiments, the paving layer rib body and the horizontal steel plate can be separated from each other, and the shape and the number of the paving layer rib body can be changed according to needs, for example, more than two paving layer rib bodies are arranged along the front-back direction.

An embodiment 5 of a bridge expansion device of the present invention is different from embodiment 1 in that the bridge deck anchoring ribs of embodiment 1 penetrate through the rib spaces between the anchor bolt sleeves, and in this embodiment, the bridge deck anchoring ribs and the anchor bolt sleeves are arranged in a staggered manner in the bridge deck width direction and separated from each other.

In embodiment 6 of the bridge expansion device of the present invention, the difference between this embodiment and embodiment 1 is that in embodiment 1, the L-shaped clamping body and the horizontal steel plate form a toothed plate clamping groove 44 around the rear of the anchoring connector, while in this embodiment, only the vertical plate extending vertically is disposed behind the horizontal steel plate, and the vertical plate is used for being isolated between the toothed plate and the pavement layer.

Embodiments of the bridge deck of the present invention: the bridge deck described in any one of embodiments 1 to 6 of the bridge expansion joint structure described above includes a deck main body, an anchoring base, a bridge deck anchoring rib body, and a pavement layer rib body, and the specific structure is not described again here.

The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.

Claims

1. The bridge panel, its characterized in that: comprises a panel main body and an anchoring base;

2. The bridge deck according to claim 1, wherein the bridge deck anchoring tendon comprises an anchoring base connection portion having an L-shaped configuration comprising a vertical connection portion and a horizontal connection portion;

3. A bridge deck according to claim 2, wherein the deck anchoring tendon is of generally U-shaped configuration with the opening of the U facing downwardly.

4. A bridge deck according to claim 2 or 3, wherein the horizontal connecting portions are provided with paver ribs, the tops of which are higher than the horizontal connecting portions, for embedding in the pavement above the deck.

5. The deck slab as defined in claim 4, wherein said paver rib body is of a U-shaped configuration with the opening of the U facing downward.

6. The deck slab as claimed in claim 5, wherein the paver rib is in contact with the side of the horizontal steel plate remote from the vertical steel plate.

7. The bridge deck according to claim 1, 2 or 3, wherein anchor bolt sleeves are welded and fixed on the anchoring base, and a rib body interval is arranged between two anchor bolt sleeves which are close to each other along the width direction of the bridge deck and is used for the anchoring rib bodies of the bridge deck to pass through.

8. The bridge expansion joint structure comprises a bridge deck plate and a comb plate;

a bridge deck according to any one of claims 1 to 7.

9. The bridge expansion joint structure of claim 8, wherein a water stop step is provided on the end face of the bridge deck, the water stop step having a horizontal step wall;

10. The bridge expansion joint structure of claim 9, wherein an elastic rubber mold and an elastic sealant are disposed between the vertical steel plates on the two bridge decks, and the elastic rubber mold and the elastic sealant are sequentially disposed above the water stop belt;