CN217997802U

CN217997802U - Bridge expansion device

Info

Publication number: CN217997802U
Application number: CN202221586325.9U
Authority: CN
Inventors: 徐速; 徐斌; 尤其; 吕建华; 王博; 杨红军
Original assignee: Ningbo Roaby Technology Industrial Group Co ltd
Current assignee: Ningbo Roaby Technology Industrial Group Co ltd
Priority date: 2022-06-23
Filing date: 2022-06-23
Publication date: 2022-12-09
Anticipated expiration: 2032-06-23

Abstract

The utility model provides a bridge telescoping device, includes the first roof beam body, the second roof beam body and telescopic member, forms structure seam, its characterized in that between the first roof beam body and the second roof beam body: the beam end of the first beam body and the beam end of the second beam body are provided with mounting notches for mounting the telescopic members, the structural joints are internally provided with supporting pieces, the supporting pieces are positioned below the telescopic members, and elastic sealing elements are poured in the mounting notches and between the telescopic members and the supporting pieces. The utility model has the advantages of: after the bridge expansion device is installed, the elastic sealing elements are poured between the installation notches of the beam bodies and the expansion member and the supporting piece, and the requirements of mutual displacement between the bridges can be met due to good contraction deformation performance of the elastic sealing elements; meanwhile, the material has good bonding performance, can fill the gap between the expansion device and the notch, and realizes seamless connection, thereby preventing water seepage and water leakage of bridge deck water from the expansion device and playing a role in sealing and waterproofing.

Description

Bridge expansion device

Technical Field

The utility model belongs to the technical field of bridge engineering's expansion joint technique and specifically relates to a bridge telescoping device is related to.

Background

In order to meet the requirement of deformation of a bridge body, a bridge expansion device is generally arranged between two beam ends of a bridge, between the beam end and an abutment or on the hinged position of the bridge. At present, the gap between the bridge expansion device body and the bridge notch is filled by concrete pouring. Drainage generally adopts the waterstop structure to carry out dense water, drainage, and during the installation, the waterstop need hug closely with telescoping device installation notch, through concreting, closely knit with waterstop and notch connection face. When the concrete is solidified, a fine gap may be generated when shrinkage occurs. Because the waterstop is made of rubber materials and has a certain deformation, when the size of the gaps exceeds the deformation of the waterstop, the gaps are not completely compact. In addition, when the water stop, the notch and the concrete are installed, the mutual contact surface needs to be adjusted, and compactness is guaranteed. Problems occur anywhere in these areas, and water seepage and water leakage may occur. In summary, the existing bridge expansion device needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art current situation, a bridge telescoping device that leakproofness and noise reduction effect are good is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: this bridge telescoping device, including first roof beam body, the second roof beam body and telescopic member, form structure seam, its characterized in that between the first roof beam body and the second roof beam body: the beam end part of the first beam body and the beam end part of the second beam body are provided with mounting notches for mounting telescopic members, support pieces are mounted in the structural joints and located below the telescopic members, and elastic sealing elements are poured in the mounting notches and between the telescopic members and the support pieces.

As a preferable scheme of the supporting member, the supporting member includes a supporting plate and supporting sleeves, the supporting plate is U-shaped and has an upward opening, two sides of the supporting plate are fixed on the beam body at the corresponding side, the supporting sleeves are installed on the supporting plate, and at least two supporting plates are arranged at intervals along the transverse bridge direction.

In order to enable the supporting piece to generate elastic deformation, the supporting plate and the supporting sleeve are elastic pieces.

The support sleeve may have various structures, and preferably, the support sleeve is cylindrical.

In order to fix the supporting plate, an embedded steel plate is embedded in the mounting groove opening, the embedded steel plate is fixed on the beam body through shear nails, and two sides of the supporting plate are fixed on the embedded steel plate on the corresponding side.

In order to adjust the installation height of the telescopic component, a height adjusting component is arranged in the installation notch, the height adjusting component is fixed with the embedded steel plate, and the telescopic component is installed on the height adjusting component.

The telescopic member can have various mounting structures, preferably, the telescopic member comprises a first comb plate, a second comb plate, a first supporting plate and a second supporting plate, the first supporting plate is fixed at the outer side of the bottom of the first comb plate, the second supporting plate is fixed at the outer side of the bottom of the second comb plate, and the first supporting plate and the second supporting plate are fixed on the height-adjusting assembly corresponding to the mounting notches.

The heightening assembly can have various structures, preferably, the heightening assembly comprises heightening plates and penetrating ribs, the heightening plates are distributed at intervals along the length direction of the mounting notch, corresponding penetrating rib holes are formed in the heightening plates, and the penetrating ribs penetrate through the penetrating rib holes and are fixed with the heightening plates.

In order to avoid the direct impact of the telescopic device by the vehicle, an anti-collision baffle is welded at the outer side part of the heightening plate, and the anti-collision baffle, the elastic sealing element, the telescopic member and the bridge pavement are flush. The on-site direct welding of the anti-collision baffle can simplify construction and realize quick installation, and the anti-collision baffle can be made of a steel plate and can be correspondingly adjusted in height according to actual installation size requirements.

The heightening plate can have various structures, preferably, the heightening plate is L-shaped and is formed with a horizontal supporting step at the inner side of the middle part, the bottom of the heightening plate is welded and fixed with the embedded steel plate, and the first supporting plate and the second supporting plate are supported and correspond to the horizontal supporting step and are welded and fixed with the heightening plate. Besides the L-shaped elevation plate, the elevation plate can also be in other different forms such as T-shaped elevation plate.

As another preferable scheme of the supporting member, the supporting member is an elastic sleeve, the elastic sleeve is arranged along the length direction of the construction seam, and the top of the elastic sleeve extends to two sides of the width direction of the elastic sleeve to form a boss, and the boss is supported on the mounting notch on the corresponding side.

Compared with the prior art, the utility model has the advantages of: after the bridge expansion device is installed, the elastic sealing piece is poured between the installation notch of the beam body and the expansion component and the support piece, so that a water stop structure is omitted, and the requirement of mutual displacement between the bridges can be met due to good contraction deformation performance of the elastic sealing piece; meanwhile, the material has good bonding performance, can fill the gap between the expansion device and the notch, and realizes seamless connection, thereby preventing water seepage and water leakage of bridge deck water from the expansion device and playing a role in sealing and waterproofing. Elastic sealing element still has inhales the sound function, does benefit to the whole noise reduction effect that promotes telescoping device. In addition, the concrete transition section structure can be cancelled by adopting the concrete-free bridge expansion device, and the time required by the construction and the maintenance of the concrete transition section in the installation of the expansion device is saved, so that the rapid installation is realized.

Drawings

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

fig. 2 is a schematic structural diagram of a first embodiment of the present invention (no elastic sealing member is poured);

FIG. 3 is a schematic view of the telescoping device shown in FIG. 2 at another angle;

fig. 4 is a structural sectional view of a first embodiment of the present invention;

fig. 5 is another sectional view of the first embodiment of the present invention;

fig. 6 is a schematic structural view of a height adjustment plate according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second embodiment of the present invention;

fig. 8 is a schematic structural diagram of a third embodiment of the present invention;

fig. 9 is a schematic structural view of another height-adjusting plate according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The first embodiment is as follows:

as shown in fig. 1 to 4, the bridge expansion device of the present embodiment includes a first beam 1, a second beam 2, an expansion member 4, a support member, a height-adjusting assembly 8, a crash barrier 9, an elastic sealing member 11, and other main assemblies. Be formed with structure seam 10 between first roof beam body 1 and the second roof beam body 2, all opened installation notch 3 at the beam-ends portion of the first roof beam body 1 and the beam-ends portion of the second roof beam body 2, pre-buried steel sheet 6 has been pre-buried in the bottom of installation notch 3, and pre-buried steel sheet 6 is fixed mutually with corresponding roof beam body through shear force nail 7. The embedded steel plates 6 are arranged according to the width of the bridge floor, so that the on-site installation and positioning of the telescopic device are facilitated, the welding strength is guaranteed, and the installation and construction time is shortened. The structure size of the embedded steel plate 6 can be specially designed according to the design load requirement of the bridge vehicle, and if the heavy-duty vehicle is in traffic, the embedded steel plate 6 with higher bearing capacity and thickened and the reinforced connecting shear nails 7 are designed. In this embodiment, each beam body is provided with two rows of shear nails 7, and the arrangement distance of the shear nails 7 in the length direction of the mounting notches 3 is set in combination with the arrangement distance of the beam body reinforcing steel bars.

The support is mounted within the construction slit 10 and below the telescopic member 4. As shown in fig. 3 and 4, the supporting member includes a supporting plate 51 and a supporting sleeve 52, both the supporting plate 51 and the supporting sleeve 52 are elastic members and have good elastic deformation, the supporting plate 51 is U-shaped with an opening facing upward, and the supporting sleeve 52 is cylindrical. During installation, the two sides of the supporting plate 51 are fixed on the embedded steel plates 6 on the corresponding sides, then the supporting sleeve 52 is installed on the supporting plate 51, and when the supporting sleeve 52 is installed, a certain compression degree is formed between the supporting sleeve 52 and the first beam body 1 and between the supporting sleeve 52 and the second beam body 2. In this embodiment, there are two single-sided support plates 51 spaced apart along the transverse bridge.

As shown in fig. 1, 4 and 5, elastic sealing elements 11 are cast in the mounting notch 3 and between the telescopic member 4 and the support, and the elastic sealing elements 11 can flow in the mounting notch area and the area between the telescopic member 4 and the support when casting. The elastic seal member 11 is usually made of a flexible polymer material, has good elasticity and adhesion performance, and may be made of a rubber sealing material. The rubber sealing material can fill and seal the gap between the support piece and the beam body, a water stop structure is omitted, and the water seepage and water leakage probability of the expansion device is favorably reduced. And the elastic sealing material has good bonding performance with the mounting notch 3 and high sealing performance, and prevents water on the bridge deck from seeping and leaking at the position of the expansion device. And the rubber sealing material has a good deformation function, can meet the requirement of mutual displacement between bridges, also has a good sound absorption effect, and is beneficial to improving the overall noise reduction effect of the expansion device.

Each mounting slot 3 is fitted with an elevation assembly 8. Heightening component 8 comprises heightening plate 81 and penetrating ribs 82, heightening plate 81 is distributed at intervals along the length direction of mounting notch 3, heightening plate 81 is provided with corresponding penetrating rib holes 811, and penetrating ribs 82 penetrate through penetrating rib holes 811 and are fixed with heightening plate 81. The bottom of the height-adjusting plate 81 is welded and fixed with the embedded steel plate 6. When pouring, the elastic sealing element 11 is communicated between the region of the mounting notch 3 and the region below the comb plate through the gap between the height-adjusting plates 81, so that the overall sealing performance of the telescopic device is better.

The telescopic member 4 of the present embodiment comprises a first comb plate 41, a second comb plate 42, a first support plate 43 and a second support plate 44, wherein the first support plate 43 is fixed at the outer side of the bottom of the first comb plate 41, and the second support plate 44 is fixed at the outer side of the bottom of the second comb plate 42.

Preferentially adopt integrative roll forming between backup pad and the fishback, can improve holistic intensity of product, rigidity, when avoiding these two parts to connect, because error, the defect that manufacturing produced and because the potential safety hazard that brings is corroded at the later stage in the use because the welding position. In addition, the supporting plate and the comb plate can also be fixed by welding.

As shown in fig. 4 and 6, the height-adjusting plate 81 is L-shaped and has a horizontal supporting step 812 formed at the inner side of the middle portion, and the first supporting plate 43 and the second supporting plate 44 are supported on the horizontal supporting step 812 corresponding to the height-adjusting unit 8 and are welded and fixed to the height-adjusting plate 81, so that the telescopic member 4 is fixed to the height-adjusting unit 8.

As shown in fig. 9, the height-adjusting plate 81 is T-shaped, and the height-adjusting plate 81 has a rib-passing hole 811. The type of the height-adjusting plate 81 is not limited to L-type and T-type, and other different types may be used.

By the installation structure, the telescopic member 4 of the embodiment is directly welded and fixed on the embedded steel plate 6 through the heightening assembly 8, so that intermediate connection links are reduced, and time consumption is reduced. Moreover, the heightening component 8 can be manufactured, adjusted and positioned in time on the construction site according to the actual depth requirement of the installation notch 3, and the arrangement distance can be adjusted at will. The full-automatic manipulator can be used for operation, automatic and intelligent welding is realized, the on-site welding precision is improved, the construction quality of the telescopic device is improved, the installation time of the telescopic device is shortened, and the impact resistance and the durability of the product are ensured.

In this embodiment, anticollision baffle 9 locates the outside of heightening subassembly 8 and welded fastening is in the outside portion of heightening board 81 to, anticollision baffle 9 flushes mutually with, elastic seal 11, bridge road surface 12, first fishback 41 and second fishback 42. The anti-collision baffle 9 is directly welded on site, so that the time required by construction and maintenance of a concrete transition section is shortened, the time for field installation or later maintenance and replacement of the telescopic device is shortened, the construction can be simplified, and quick installation is realized. After setting up anticollision baffle 9, can avoid telescopic member 4 to receive external damage on the one hand, on the other hand makes the mounting structure of heightening subassembly 8 more firm, and then can promote the structural firmness of telescoping device. In addition, the anti-collision baffle 9 can also be directly welded and fixed on the embedded steel plate 6.

The length of the telescopic member 4 of the telescopic device of the embodiment can be manufactured and installed in a segmented mode according to the width of a lane or any other width, and segmented maintenance or replacement in the later period is facilitated.

The installation method of the bridge expansion device comprises the following steps:

s1, digging and cleaning the whole installation notch 3 area, and measuring the notch depth;

s2, according to the depth of the notch obtained by measuring in the step S1, correspondingly processing the height-adjusting assembly 8 of the telescopic device, welding the height-adjusting assembly 8 on the embedded steel plate 6, cleaning welding slag and welding seams, and keeping the notch clean;

s3, mounting a support plate 51 of the support piece, wherein the support plate 51 is welded on the embedded steel plate 6, or fastening the support plate 51 in the structural joint 10 at the lower part of the mounting notch 3 by using a screw;

s4, placing the support sleeve 52 of the support piece into the support plate 51, and keeping the interference magnitude to ensure that the structural joint 10 between the support sleeve 52 and the beam body is tightly attached;

s5, adjusting and installing the positions of the telescopic members 4 in the longitudinal bridge direction and the transverse bridge direction and the flatness of the bridge pavement, and then welding and fixing the telescopic members 4 on the height-adjusting assembly 8;

s6, welding and fixing the anti-collision baffle 9 on the outer side of the heightening assembly 8, and enabling the upper surface of the anti-collision baffle 9 to be flush with the bridge pavement 12;

s7, cleaning welding seams and welding slag to ensure that the inside of the notch is clean;

s8, pouring an elastic sealing element from the gap between the comb teeth of the telescopic member 4 and the height-adjusting assembly 8 to fill the gap in the area of the mounting notch 3 and the structural seam 10 above the support element.

Example two:

as shown in fig. 7, the supporting member of the present embodiment is an elastic sleeve 53, the elastic sleeve 53 is arranged along the length direction of the structural joint 10, the elastic sleeve 53 is hollow, the top of the elastic sleeve 53 extends to both sides of the width direction of the elastic sleeve with bosses 531, and the bosses 531 are supported on the mounting notches 3 on the corresponding side, specifically on the embedded steel plates 6 on the corresponding side. Thus, the elastic sleeve 53 is hung between the first beam body 1 and the second beam body 2, and the elastic sealing member 11 after casting presses the elastic sleeve 53, so that the elastic sleeve 53 is fixed on the structural joint 10. The rest of the structure of the present embodiment is the same as that of the first embodiment, and will not be described herein.

Example three:

as shown in fig. 8, in addition to the second embodiment, the bridge expansion and contraction device of the present embodiment is provided with a noise reduction assembly 13 between the expansion and contraction member 4 and the elastic sealing member 11. The noise reduction assembly 13 is composed of a foamed member 131 and a stainless steel plate 132. Wherein, the bottom support of noise reduction subassembly 13 is on elastic sealing element 11, and the top of noise reduction subassembly 13 is equipped with corrosion resistant plate 132, and corrosion resistant plate 132 locates the below of first fishback 41, second fishback 42, and the both sides of noise reduction subassembly 13 offset with first backup pad 43 and second backup pad 44 respectively. On one hand, the noise reduction assembly 13 can effectively absorb tire noise of the vehicle, and on the other hand, when the elastic sealing member 11 expands and contracts along with the bridge, the noise reduction assembly 13 can provide a certain buffer space.

In addition, in the expansion joint device of the present embodiment, the triangular rib plate 14 is welded between the first expansion plate 41 and the first support rib plate 43, and the triangular rib plate 14 is also welded between the second expansion plate 42 and the first support rib plate 44, so as to improve the overall structural strength of the expansion member 4.

The rest of the structure of the present embodiment is the same as the embodiment, and will not be described herein.

The above description is only the preferred embodiment of the present invention, it should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be modified or improved, for example, a concrete transition section can be poured outside the telescopic member, for example, in order to increase the structural strength of the telescopic device, a reinforcing rib plate can be welded between the comb plate and the supporting plate of the telescopic member, for example, the structure of the supporting member is not limited to the structure in the above embodiments, and these are all considered as the protection scope of the present invention.

Claims

1. The utility model provides a bridge telescoping device, includes first roof beam body (1), second roof beam body (2) and telescopic means (4), form between first roof beam body (1) and the second roof beam body (2) and construct seam (10), its characterized in that: the beam end of the first beam body (1) and the beam end of the second beam body (2) are provided with mounting notches (3) used for mounting telescopic members (4), supporting pieces are mounted in the structural seams (10), the supporting pieces are located below the telescopic members (4), and elastic sealing pieces (11) are poured in the mounting notches (3) and between the telescopic members (4) and the supporting pieces.

2. The bridge expansion device of claim 1, wherein: the supporting piece comprises a supporting plate (51) and supporting sleeves (52), the supporting plate (51) is U-shaped, the opening of the supporting plate faces upwards, two sides of the supporting plate (51) are fixed on the beam body on the corresponding side, the supporting sleeves (52) are installed on the supporting plate (51), and at least two supporting plates (51) are distributed at intervals along the transverse bridge direction.

3. The bridge expansion device of claim 2, wherein: an embedded steel plate (6) is embedded in the mounting notch (3), the embedded steel plate (6) is fixed on the beam body through a shear nail (7), and two sides of the support plate (51) are fixed on the embedded steel plate (6) on the corresponding side.

4. The bridge expansion device of claim 3, wherein: be equipped with in installation notch (3) and increase subassembly (8), increase subassembly (8) with pre-buried steel sheet (6) are fixed mutually, telescopic component (4) are installed increase on subassembly (8).

5. The bridge expansion device of claim 4, wherein: the telescopic member (4) comprises a first comb plate (41), a second comb plate (42), a first supporting plate (43) and a second supporting plate (44), the first supporting plate (43) is fixed to the outer side of the bottom of the first comb plate (41), the second supporting plate (44) is fixed to the outer side of the bottom of the second comb plate (42), and the first supporting plate (43) and the second supporting plate (44) are fixed to the height adjusting assembly (8) corresponding to the mounting groove opening (3).

6. The bridge expansion device of claim 5, wherein: heightening subassembly (8) including heightening board (81) and wearing muscle (82), heightening board (81) is along the length direction interval distribution of installation notch (3), and it has corresponding muscle hole (811) to open on heightening board (81), wear muscle (82) to pass wear muscle hole (811) and with heightening board (81) fixed mutually.

7. The bridge expansion device of claim 6, wherein: the outer side of the heightening plate (81) is welded with an anti-collision baffle (9), and the anti-collision baffle (9), the elastic sealing element (11), the telescopic member (4) and the bridge pavement (12) are flush with each other.

8. The bridge expansion device of claim 1, wherein: the support piece is an elastic sleeve (53), the elastic sleeve (53) is arranged along the length direction of the construction seam (10), bosses (531) extend from the top of the elastic sleeve (53) to the two sides of the width direction of the elastic sleeve, and the bosses (531) are supported on the mounting notches (3) on the corresponding sides.