CN213061679U

CN213061679U - Bridge expansion joint structure

Info

Publication number: CN213061679U
Application number: CN202021212518.9U
Authority: CN
Inventors: 周伟民; 谢迪晨
Original assignee: Guangzhou Yumin Steel Structure Co ltd
Current assignee: Guangzhou Yumin Steel Structure Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-04-27
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a bridge expansion joint structure, including the interconnect's that a plurality of groups were arranged along the axial flexible module, flexible module includes two sets of mutual just to and with bridge connection's anchor assembly, anchor assembly is provided with the base member board, and the base member board is offered along axially extended spread groove towards the side of another base member board, and the spread groove grafting cooperation has the fishback, the tooth intermeshing of two fishback of flexible module. Through adopting above-mentioned setting, have and to improve because the vehicle impact force causes the condition that the pre-buried bolt pine between fishback and the bridge takes off, improve life's advantage simultaneously.

Description

Bridge expansion joint structure

Technical Field

The utility model relates to a bridge expansion joint's technical field, concretely relates to bridge expansion joint structure.

Background

With the development of bridge construction business in China, the construction safety of bridges is always concerned. The bridge expansion joint structure is also one of the important indexes for measuring the building safety of the bridge, and the bridge expansion device is arranged between two beam ends, between the beam end and the abutment or on the hinged position of the bridge. Because the structure of bridge expansion joint has the pinion rack constitution that two sides intermeshing set up, has stronger interconnect effect, when meetting environmental changes such as strong wind or earthquake, the bridge can be because external factors produces the condition of rocking, utilizes the meshing effect of the pinion rack on the two sides of expansion joint, the connection bridge that can the preferred, reduces the bridge and appears breaking the condition of collapsing.

The strideing type fishback expansion joint is the comparatively extensive structure of present application, and strideing type fishback expansion joint includes that two branches are listed in the pinion rack of gap both sides between the bridge segmentation, and the anchor reinforcing bar of pinion rack and bridge passes through pre-buried bolt rigid connection, and the tooth intermeshing of two pinion racks of strideing type fishback sets up. Because pinion rack and bridge mainly carry out the rigid connection through the bolt, consequently under the impact of vehicle gravity, the pinion rack bears the impact force by producing through the vehicle for a long time, cause the hookup location between pinion rack and the buried bolt in advance to produce fatigue loss easily and increase the probability that the pinion rack appears taking off with buried bolt tie point in advance simultaneously, consequently need the staff to check the locking connection condition of bridge buried bolt in advance frequently for a long time, thereby cause labour loss, in addition because the impact causes buried bolt cracked condition in advance even, thereby reduce expansion joint life, reduce bridge driving safety.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a bridge expansion joint structure which can improve the condition that the pre-buried bolt between the comb plate and the bridge is loosened due to the impact force of the vehicle and can prolong the service life.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a bridge expansion joint structure, includes the interconnect's that a plurality of groups arranged along the axial flexible module, flexible module includes two sets of mutual just to and with bridge connection's anchor assembly, anchor assembly is provided with the base member board, the base member board is towards another the spread groove along axial extension is seted up to the side of base member board, the spread groove is pegged graft and is cooperated there is the fishback, two of flexible module the tooth intermeshing of fishback.

Further, the anchoring part comprises a plurality of anchoring rings which are axially arranged, a plurality of steel bars are welded in the plurality of anchoring rings of the anchoring part in a penetrating manner, and a plurality of slots for inserting and positioning the anchoring rings are formed in the base plate.

Further, the cross section of the connecting groove perpendicular to the axial direction is in an L-shaped arrangement, a bent opening of the connecting groove is arranged downwards and horizontally towards the comb plate, the comb plate is integrally connected with a connecting strip in sliding fit with the connecting groove, and the cross section of the connecting strip perpendicular to the axial direction is in an L-shaped arrangement; when the comb plate is in sliding fit with the base plate, the top surface of the comb plate is coplanar with the top surface of the base plate.

Further, the bottom surface of the connecting groove of the base plate and the elastic plate are arranged between the connecting strips, the elastic plate is made of elastic steel materials, the cross section of the elastic plate is in a rhombic shape, a buffer plate facing the groove opening of the connecting groove is arranged in the connecting groove of the base plate, the buffer plate is located between the elastic plate and the connecting strips and abutted against the elastic plate and the connecting strips, and the side face of the buffer plate facing the elastic plate is provided with an abutting groove for the corner of the elastic plate to be inserted and connected.

Further, the spread groove that is the L type of base member board keeps away from the intraoral interval between two inslot walls along two base member board line directions that is greater than that of the connecting strip that is the L type of fishback end along the thickness of two base member board line directions in the spread groove, the fishback with the connecting strip is kept away from fishback end just is close to the interval between the side of fishback is greater than the spread groove is close to its notch the inner wall with the horizontal distance of spread groove notch.

Further, the connecting strips are arranged in a reverse bevel edge mode at the intersection between the side faces at the two ends in the axial direction and the end faces far away from the comb plate.

Furthermore, a plurality of through holes are communicated with the top surface of the base plate, part of the through holes are communicated with the connecting grooves, a plurality of straight holes are communicated with the connecting strips of the comb plate, and when the comb plate is used as the comb

When the toothed plate is in splicing sliding fit with the connecting groove, the straight holes of the connecting strip are respectively opposite to the through holes.

Further, a sealing plug is arranged in the plurality of through holes of the base plate in an interference fit mode, the top surface of the sealing plug and the top surface of the base plate are arranged in a coplanar mode, and a threaded hole is formed in the top surface of the sealing plug.

Further, the bottom surface of the base plate is fixedly connected with a plurality of conical blocks, and the tips of the conical blocks are arranged downwards.

Further, the same telescopic module is provided with two opposite side faces of the connecting strip, the mounting groove extends to and is communicated with the connecting strip along two axial side faces along the axial direction, the two connecting strips are provided with the same water stop in an inserting mode, and the water stop is perpendicular to the axial direction of the two ends and is integrally connected with the mounting strip matched with the mounting groove in an inserting mode.

The utility model discloses following beneficial effect has:

according to the bridge expansion joint structure, the expansion modules which are axially arranged and connected with each other are arranged, when the bridge expansion joint structure is installed on a connecting joint of a bridge, any number of expansion modules can be installed according to the width size of the bridge, so that the expansion modules can be used as production module prefabricated parts for batch production, the mode of integral processing according to a specific size is reduced, the production efficiency can be effectively improved, and the production cost is reduced; through setting up anchor assembly and directly carrying out the strong connection with the bridge, for example carry out fixed mounting through concrete placement volume form, be favorable to improving the stability of installation, be connected with anchor assembly through setting up the base member board, can also be connected base member board and anchor assembly through concrete placement's mode, with the stability of reinforcing base member board installation, through setting up the cooperation of pegging graft of fishback and base member board, and avoid using bolt threaded connection's mode, can reduce the impact force that produces owing to the bridge driving by the preferred and make the bolt pine take off, thereby improve the stability of fishback and base member board installation, be favorable to reducing the staff and examine the bolt locking condition for a long time, and the working strength is reduced, and the service life of fishback is improved simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 2.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is an exploded view from another perspective of the present invention.

Fig. 5 is a partially enlarged view of fig. 3 at B.

Fig. 6 is a partially enlarged view at C in fig. 4.

In the figure: 1. a telescoping module; 2. an anchoring member; 21. an anchoring ring; 22. a steel bar; 3. a base plate; 31. connecting grooves; 311. a main strip-shaped groove; 312. a secondary strip-shaped groove; 32. a through hole; 33. A sealing plug; 331. a threaded hole; 34. a slot; 35. a conical block; 4. a comb plate; 41. a connecting strip; 411. a main strip-shaped plate; 412. a secondary strip-shaped plate; 42. mounting grooves; 43. chamfering; 5. an elastic member; 51. an elastic plate; 511. an opening; 52. a buffer plate; 521. a butt joint groove; 6. a water stop; 61. and (7) mounting the bar.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments. In the present specification, the terms "upper", "inner", "middle", "left", "right" and "one" are used for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the corresponding parts may be changed or adjusted without substantial technical changes.

Referring to fig. 1 to 4 show a bridge expansion joint structure, including the flexible module 1 of the mutual butt that a plurality of groups arranged along the axial, flexible module 1 includes that two sets of mutual just to and fix the anchor assembly 2 that is close to the bridge top through the concrete, two sets of anchor assembly 2 of same flexible module 1 are located the both sides of bridge joint seam respectively during the installation, base member plate 3 is installed at anchor assembly 2's top, base member plate 3 passes through concrete and anchor assembly 2 fixed connection, connecting groove 31 along axial extension is seted up towards the side of another base member plate 3 to one of its base member plate 3 of same flexible module 1, connecting groove 31 is linked together along two axial sides with base member plate 3, connecting groove 31 grafting cooperation has fishback 4, the tooth intermeshing of two fishback 4 of flexible module 1.

Referring to fig. 1 and fig. 3, anchoring member 2 includes a plurality of anchor rings 21 that arrange along the axial and just right each other, anchor ring 21 passes through concrete and bridge fixed connection, anchoring member 2 buries in the bridge completely during installation, anchor ring 21 is the setting of class rectangle, the inner ring of a plurality of anchor rings 21 of anchoring member 2 is just right each other, one side that the bottom surface of base plate 3 is close to anchoring member 2 is seted up a plurality of slots 34 that supply anchor ring 21 to peg graft the location, slot 34 is linked together with the side that base plate 3 is close to anchoring member 2, a plurality of slots 34 of base plate 3 are arranged along the axial, anchor ring 21 is close to the apex angle of base plate 3 and is pegged graft the cooperation with slot 34, it has three billet 22 to run through welding in a plurality of anchor rings 21 of anchoring member 2, three billet 22 is listed as the three apex angle position that base plate 3 is kept away from at anchor ring 21 respectively, billet 22.

It is specific, fix a plurality of anchor ring 21 under the bridge through the concrete during installation, thereby make anchor assembly 2 form the inner structure of bridge, it causes inconvenience to reduce anchor assembly 2 protrusion and install at the bridge surface to the driving, through setting up billet 22 and a plurality of anchor ring 21 welded fastening, thereby make a plurality of anchor ring 21 interconnect constitution body structure, be favorable to strengthening overall structure's stability, through setting up slot 34 at base plate 3 and supply anchor ring 21 to peg graft, so that installation and location base plate 3, thereby make two base plate 3 of flexible module 1 keep at preset's height.

Referring to fig. 1 to 5, in order to improve the firmness of the connection and installation of the comb plate 4 and the base plate 3, the cross section of the connecting groove 31 perpendicular to the axial direction is in an L-shaped arrangement, the bending opening 511 of the connecting groove 31 is arranged downwards and horizontally towards the comb plate 4, the side surface of the comb plate 4 away from the teeth is integrally connected with a connecting strip 41 in insertion fit with the connecting groove 31, two ends of the connecting strip 41 in the length direction are respectively coplanar with two side surfaces of the comb plate 4 in the axial direction, the cross section of the connecting strip 41 perpendicular to the axial direction is in an L-shaped arrangement, and the bending opening 511 of the connecting strip 41 is arranged downwards; when the comb plate 4 is matched with the base plate 3 in an inserting manner, the top surface of the comb plate 4 and the top surface of the base plate 3 are arranged in a coplanar manner.

Referring to fig. 1 to 5, when the comb plate 4 is inserted into and mated with the base plates 3, there is a gap between the connecting bar 41 and the connecting groove 31 along the horizontal direction, and the connecting bar 41 can slide along the linear connecting line direction of the two base plates 3 of the same telescopic module 1. The connecting groove 31 includes the main strip-shaped groove 311 that is seted up in the side of another base plate 3 of base plate 3 orientation same telescopic module 1, vice strip-shaped groove 312 has been seted up to main strip-shaped groove 311 playing direction of height's tank bottom surface and keeping away from the end of main strip-shaped groove 311 notch, vice strip-shaped groove 312 sets up with main strip-shaped groove 311 mutually perpendicular, connecting strip 41 includes the main strip-shaped plate 411 of keeping away from the side body coupling of its tooth with fishback 4, the terminal body coupling that fishback 4 was kept away from to main strip-shaped plate 411 has vice strip-shaped plate 412, vice strip-shaped plate 412 sets up with main strip-shaped plate 411 mutually perpendicular. Along the linear connection direction of the two base plates 3 of the same telescopic module 1, the thickness of the secondary strip-shaped plate 412 is smaller than the distance between the two inner walls of the secondary strip-shaped groove 312; along the linear connecting line direction of the two base plates 3 of the same telescopic module 1, the distance from the bottom wall of the main strip-shaped groove 311 to the notch thereof is smaller than the distance from the tail end of the comb plate 4 to the comb plate 4 of the main connecting strip 41.

Referring to fig. 3 to 6, an elastic plate 51 is disposed between the bottom surface of the sub-strip-shaped groove 312 of the base plate 3 away from the notch of the main strip-shaped groove 311 and the connecting strip 41, the elastic plate 51 is made of an elastic steel material, the elastic plate 51 is disposed along a cross section perpendicular to the axial direction in a diamond shape, three corners of the elastic plate 51 are respectively fixedly connected with the inner wall of the connecting groove 31, the corner of the elastic plate 51 connected with the bottom wall of the connecting groove 31 away from the notch thereof along the horizontal direction is disposed as an opening 511, which is beneficial to increase the contact area between the elastic plate 51 and the inner wall of the connecting groove 31, a buffer plate 52 sliding towards the notch of the connecting groove 31 along the horizontal direction is disposed in the connecting groove 31 of the base plate 3, the buffer plate 52 is in a long strip shape, the length of the buffer plate 52 is the same as that of the connecting strip 41, the buffer plate 52 is disposed between the elastic, the side of the buffer plate 52 facing the elastic plate 51 is provided with an abutting groove 521 for the corner of the elastic plate 51 to be matched with the elastic plate in an inserting manner, the abutting groove 521 extends to the buffer plate 52 along the axial direction along the two end faces to be communicated, and the cross section of the abutting groove 521 perpendicular to the axial direction is in a triangle-like shape.

Specifically, by limiting the sizes of the connecting groove 31 and the connecting bar 41, the elastic connection is installed between the groove bottom surface of the connecting groove 31 and the connecting bar 41 with enough space, and by arranging the elastic plate 51 in a diamond shape, and arranging one of the edges of the elastic plate 51 in an opening 511, the elastic plate 51 is beneficial to being produced by a bending forming processing technology, and compared with a mode of arranging a spring, the elastic plate 51 is more convenient to be processed, produced and installed; make connecting strip 41 direct and the butt of buffer board 52 through setting up buffer board 52, when the bridge joint seam appears flexible, utilize the effect of resetting of elastic plate 51, the cushioning effect at improvement bridge expansion joint that can the preferred to make the bridge expansion joint be in dynamic balance's state.

Referring to fig. 3 to 6, due to the elastic action of the elastic plate 51, the space for installing the connecting bar 41 in the connecting groove 31 is reduced, and in order to facilitate the installation of the connecting bar 41 in the connecting groove 31, the connecting bar 41 is installed in the connecting groove 31 in an inserting manner, and the intersection between the side surfaces at the two axial ends of the connecting bar 41 and the end surface far away from the comb plate 4 is an inverted bevel edge.

Referring to fig. 3 to 6, in order to further improve the stability of base plate 3 and bridge direct mount, make the installation of base plate 3 more firm, a plurality of toper pieces 35 of bottom surface fixedly connected with of base plate, a plurality of toper pieces 35 are arranged along the axial, and the pointed end of toper piece 35 sets up down to can the disect insertion bridge in when installing base plate 3.

Referring to fig. 3 to 6, a plurality of through holes 32 penetrate through the top surface of the base plate 3, the through holes 32 are arranged in two rows along the axial direction, one row of through holes 32 close to the connecting groove 31 is communicated with the connecting groove 31, a plurality of straight holes (not shown in the figure) penetrate through the connecting bar 41 of the comb plate 4, and when the comb plate 4 is inserted into the connecting groove 31 to be in sliding fit, the straight holes of the connecting bar 41 are respectively arranged opposite to the through holes 32.

Specifically, after fishback 4 is pegged graft the cooperation through connecting strip 41 and connecting groove 31 and is accomplished, can pour into the position between bridge and the base plate 3 into with the concrete through pipe insertion through-hole 32 in, the position of pouring into the height of concrete to connecting strip 41 not has been crossed to the while to with the fixed base plate 3 of further installation, strengthen base plate 3 erection fixation's stability simultaneously.

Referring to fig. 3 to 6, in order to reduce the situation that the through hole 32 at the top of the base plate 3 is exposed and impurities enter the through hole 32, even the direct fit position of the connecting strip 41 and the connecting groove 31 is blocked to complete the expansion and blocking of the comb plate 4, the plurality of through holes 32 of the base plate 3 are in interference fit with the sealing plug 33, the top surface of the sealing plug 33 is coplanar with the top surface of the base plate 3, and the top surface of the sealing plug 33 is provided with a threaded hole 331, so that the sealing plug 33 or the base plate 3 can be directly connected with the threaded hole 331 through a maintenance tool in the maintenance process so as to.

Referring to fig. 3 to 6, in order to reduce the situation that the water seepage occurs in the comb plate 4 of the direct intermeshing of the bridge expansion joint, mounting grooves 42 have all been seted up to two opposite sides of the connecting strip 41 of the same telescopic module 1, the mounting grooves 42 extend to and are linked together with the connecting strip 41 along two axial sides along the axial direction, two mounting grooves 42 of two connecting strips 41 are inserted and installed with the same waterstop 6, and the both ends homogeneous body of the waterstop 6 perpendicular to the axial direction is connected with the mounting strip 61 inserted and matched with the mounting grooves 42.

In summary, by arranging the expansion modules 1 which are axially arranged and connected with each other, when the bridge expansion joint structure is installed on the connecting joint of the bridge, any number of expansion modules 1 can be installed according to the width dimension of the bridge, so that the expansion modules 1 can be used as production module prefabricated parts for batch production, the mode of integral processing according to a specific dimension is reduced, the production efficiency can be effectively improved, and the production cost is reduced; through setting up anchor assembly 2 and directly carrying out the strong connection with the bridge, for example, carry out fixed mounting through concrete placement volume form, be favorable to improving the stability of installation, be connected with anchor assembly 2 through setting up base member board 3, can also be connected base member board 3 with anchor assembly 2 through concrete placement's mode, with the stability of reinforcing base member board 3 installation, through setting up fishback 4 and base member board 3 grafting cooperation, and avoid using bolt threaded connection's mode, can reduce the impact force that produces owing to the bridge driving by the preferred and make the bolt pine take off, thereby improve the stability of fishback 4 and base member board 3 installation, be favorable to reducing the staff and examine the bolt locking condition for a long time, and the working strength is reduced, and the service life of fishback 4 is prolonged simultaneously.

The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make other modifications, replacements or combinations in various forms, all falling within the protection scope of the present invention.

Claims

1. A bridge expansion joint structure is characterized in that: including a plurality of groups along the interconnect's of axial arrangement flexible module, flexible module includes two sets of mutual just to and the anchor assembly of being connected with the bridge, anchor assembly is provided with the base member board, the base member board is towards another the spread groove along axial extension is seted up to the side of base member board, the spread groove is pegged graft and is cooperated the fishback, two of flexible module the tooth intermeshing of fishback.

2. A bridge expansion joint structure according to claim 1, wherein: the anchoring part comprises a plurality of anchoring rings which are axially arranged, a plurality of steel bars are welded in the anchoring rings of the anchoring part in a penetrating manner, and a plurality of slots for inserting and positioning the anchoring rings are formed in the base plate.

3. A bridge expansion joint structure according to claim 1, wherein: the cross section of the connecting groove perpendicular to the axial direction is in an L-shaped arrangement, a bending opening of the connecting groove is arranged downwards and horizontally towards the comb plate, the comb plate is integrally connected with a connecting strip in sliding fit with the connecting groove, and the cross section of the connecting strip perpendicular to the axial direction is in an L-shaped arrangement; when the comb plate is in sliding fit with the base plate, the top surface of the comb plate is coplanar with the top surface of the base plate.

4. A bridge expansion joint structure according to claim 3, wherein: the tank bottom surface of the spread groove of base member board with be provided with the elastic plate between the connecting strip, the elastic plate is made by having elastic steel material, the rhombus setting is personally submitted to the transversal of elastic plate, be provided with the orientation in the spread groove of base member board the gliding buffer board of spread groove notch, the buffer board is located the elastic plate with between the connecting strip and with elastic plate and connecting strip butt, the buffer board orientation the confession has been seted up to the side of elastic plate the butt groove that the elastic plate arris was pegged graft.

5. The bridge expansion joint structure of claim 4, wherein: the spread groove that is the L type of base member board is kept away from the intraoral interval between two inslot walls along two base member board line directions of groove and is greater than the connecting strip that is the L type of fishback is located the terminal thickness along two base member board line directions in the spread groove, fishback with the connecting strip is kept away from fishback end and being close to interval between the side of fishback is greater than the spread groove be close to its notch the inner wall with the horizontal distance of spread groove notch.

6. The bridge expansion joint structure of claim 4, wherein: the side of connecting strip along axial both ends all is the bevel edge setting with keep away from the intersection between the terminal surface of fishback.

7. A bridge expansion joint structure according to claim 1, wherein: the top surface of base member board link up there is a plurality of through-holes, part the through-hole with the spread groove is linked together, the connecting strip of fishback runs through there are a plurality of straight holes, works as the fishback with during the spread groove grafting sliding fit, a plurality of the connecting strip the straight hole respectively with a plurality of the through-hole is just to setting up.

8. A bridge expansion joint structure according to claim 7, wherein: the base body plate is provided with a plurality of through holes in interference fit with sealing plugs, the top surfaces of the sealing plugs and the top surface of the base body plate are arranged in a coplanar mode, and the top surfaces of the sealing plugs are provided with threaded holes.

9. A bridge expansion joint structure according to claim 1, wherein: the bottom surface of base member board fixedly connected with a plurality of toper pieces, the pointed end of toper piece sets up downwards.

10. A bridge expansion joint structure according to claim 3, wherein: it is same two of flexible module the mounting groove has all been seted up to the side that the connecting strip is relative, the mounting groove along axial extend to with the connecting strip is linked together along two axial sides, two of connecting strip same waterstop is installed in the mounting groove grafting, waterstop perpendicular to axial both ends homogeneous body be connected with the mounting groove complex mounting strip of pegging graft.