CN214882923U - Comb-tooth type bridge expansion device - Google Patents
Comb-tooth type bridge expansion device Download PDFInfo
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- CN214882923U CN214882923U CN202120860361.9U CN202120860361U CN214882923U CN 214882923 U CN214882923 U CN 214882923U CN 202120860361 U CN202120860361 U CN 202120860361U CN 214882923 U CN214882923 U CN 214882923U
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Abstract
The utility model discloses a comb tooth type bridge expansion device, which comprises a first profile steel boundary beam and a second profile steel boundary beam which are positioned at two sides of an expansion joint, the end sides of the two profile steel boundary beams are provided with staggered comb tooth structures, a support frame is fixed at the inner side direction of the first profile steel boundary beam, the supporting frame comprises a vertical surface and a top surface, the vertical surface of the supporting frame is fastened with the inner side of the boundary beam, the top surface of the supporting frame is fixed with a position-changing noise-reducing mechanism, this it makes an uproar mechanism top of falling shifts is provided with first slide and second slide, and this first slide and second slide are fixed respectively in the first type steel boundary beam inboard and the second type steel boundary beam inboard of broach below, and first slide is hugged closely it makes an uproar mechanism top of falling shifts, the relative first slide of second slide and the two has the area part of coincidence, can cover the clearance that arouses of flexible in-process top completely through the cooperation of this slide. The utility model provides an original bridge telescoping device, appear damaging easily, firm inadequately, influence driving safety's problem.
Description
Technical Field
The utility model relates to a road and bridge technical field especially relates to a broach type bridge telescoping device.
Background
The expansion device is one of important functional components of the bridge, and the expansion device is arranged between the beam end and the beam end of the bridge and between the beam end and the abutment, so that the structural displacement and connection caused by vehicle load, environmental characteristics and the self physical properties of bridge building materials can be effectively adjusted. An ideal telescopic device should satisfy the following conditions: the displacement of the upper structure of the bridge under the action of external force is fully met; must be firm, reliable and durable; mechanical abrasion and collision can be resisted; the stability and the safety of the traffic are ensured; preventing rainwater and garbage from infiltrating; the installation is convenient, and the maintenance is easy to check.
The traditional bridge expansion device mainly has the structural forms of a modulus type and a simple comb plate type, the modulus type expansion device mainly takes a wool-like expansion device as a main part and is usually designed into a grid structure, and the simple comb plate is an expansion device simplified on the basis of a Japanese expansion device. Both modular and simple comb plate extension devices have many problems in existing engineering. The phenomena of vehicle jumping and water leakage at the expansion joint are common, the problems that a grid structure of a modular expansion device is scattered, a middle beam steel is broken and falls off, a nut of a simple comb plate expansion device falls off and a comb plate is bent appear in large quantity, and potential safety hazard examples caused by the expansion device are frequent. According to statistics, after 87% of roads and bridges in China pass through the vehicle for two years, the telescopic device is damaged to different degrees. The safety of the bridge road is directly influenced by the quality of the performance of the bridge expansion device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a broach type bridge telescoping device to solve original bridge telescoping device, especially the problem of damage, influence driving safety appear easily in the telescoping device.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a comb tooth type bridge expansion device, which comprises a first profile steel boundary beam and a second profile steel boundary beam which are positioned at two sides of an expansion joint, the end sides of the two profile steel boundary beams are in a staggered connection comb tooth structure, wherein a support frame is fixed in the inner side direction of the first section steel boundary beam, the support frame comprises a vertical surface and a top surface, the vertical surface of the support frame is fastened with the inner side of the boundary beam, the top surface of the support frame is fixed with a position-changing noise-reducing mechanism, shift and fall mechanism top of making an uproar and be provided with first slide and second slide, first shaped steel boundary beam inboard and second shaped steel boundary beam inboard in broach below are fixed respectively to first slide and second slide, and first slide is hugged closely shift and fall mechanism top of making an uproar, second slide relative first slide relative slip and the two have the area part of coincidence, and bottom surface under the broach of second shaped steel boundary beam is hugged closely at second slide top.
Further, the support frame still includes the bottom surface, the protruding horizontal step that has the orientation expansion joint direction of stretching in first shaped steel boundary beam lower part and with first shaped steel boundary beam integrated into one piece preparation, the step supports the bottom surface of support frame, the tip of the bottom surface to the top surface of support frame is the inclined plane.
Furthermore, the vertical surfaces of the profile steel boundary beam and the support frame are fixed through a plurality of fastening bolts, and the fastening bolts penetrate through the profile steel boundary beam and are embedded into concrete along with the profile steel boundary beam.
Furthermore, the first sliding plate and the second sliding plate are both block-shaped sliding steel plates and are arranged up and down; or the first sliding plate is arranged to be a narrow groove, the second sliding plate is blocky, and the second sliding plate extends into the narrow groove to slide.
Furthermore, the deflection noise reduction mechanism comprises a groove-shaped support groove, and a compression spring or an elastic rubber column is fixed in the groove.
Furthermore, a water stop is arranged between the expansion joints and is arranged at the bottom side of the profile steel boundary beam or is poured and fixed in concrete below the boundary beam.
Furthermore, the support frame is surrounded by a plurality of stainless steel plates to form a polygon, fastening ribs can be welded from the top surface to the inclined surface, and foamed polyurethane is filled in the gap.
Further, the boundary beam is an I-shaped boundary beam, the I-shaped boundary beam comprises two parallel walls, a clamping groove fixedly connected with the anchoring plates is formed between the two walls, and the clamping groove of one profile steel boundary beam is connected with the plurality of anchoring plates side by side.
Preferably, high-strength extrusion-resistant rubber is thermally sealed on the surface of the clamping groove, which is in contact with the concrete, of the profile steel edge beam.
Preferably, the draw-in groove of every shaped steel boundary beam is connected with a plurality of anchor boards that the interval set up, still sets up circular port or rectangle macropore in the middle of every anchor board, concatenates a plurality of anchor boards through penetrating reinforcing bar or steel sheet and links firmly.
Compared with the prior art, the utility model provides a broach type bridge telescoping device, broach and shaped steel boundary beam integrated into one piece, the steadiness is higher, to the noise problem that appears easily at the driving in-process, adopts the mechanism of making an uproar and the cooperation of two sliding steel plates of falling that shift, neither influences flexible, also can prevent dust and give sound insulation.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a schematic top view of a comb-tooth-shaped bridge expansion device according to an embodiment of the present invention;
fig. 2 is a front view of one of the structures of the comb-tooth type bridge expansion device in the embodiment of the present invention;
fig. 3 is a front view of another structure of the comb-tooth type bridge expansion device in the embodiment of the present invention;
fig. 4 is a schematic structural view of a first section steel boundary beam in the embodiment of the present invention.
Fig. 5 is a schematic structural view of the supporting frame in the embodiment of the present invention.
Detailed Description
In order to further explain the comb-tooth type bridge expansion device provided by the embodiment of the present invention, the following description is made in detail with reference to the attached drawings.
Referring to fig. 1 to 4, the comb-tooth-shaped bridge expansion device provided in this embodiment is used for a road bridge, and includes a first profile steel boundary beam 1 and a second profile steel boundary beam 2 located at two sides of an expansion joint, and arranged along a width direction of the bridge, end sides of the two profile steel boundary beams are long-strip-shaped comb tooth structures arranged in a staggered manner, and as comb teeth are directly fixed and formed on the profile steel boundary beams, a problem that original comb teeth are easily broken is reduced, wherein a support frame 3 fixed on an inner side of the first profile steel boundary beam 1 is arranged in an inner side direction (toward one side of the expansion joint) of the first profile steel boundary beam 1, the support frame 3 is a frame formed by welding a plurality of plates and having a polygonal cross section, such as a supporting leg triangle, a right trapezoid and the like, and is preferably made of a stainless steel plate, the support frame 3 includes a vertical surface 31 and a top surface 32, and the vertical surface of the support frame 3 is fastened to the inner side of the boundary beams, the top surface 32 of support frame 3 is fixed with and shifts and falls the mechanism of making an uproar 4, and the support piece top surface has one section clearance apart from the broach, shifts and falls the mechanism of making an uproar 4 top and be provided with two slides that can the relative slip, and two slides have filled the clearance that the broach brought when the relative slip, can avoid debris and rainwater to fall into the expansion joint, also can give sound insulation. Two slides can be for the first slide 5 and the second slide 6 of arranging from top to bottom, wherein, first slide 5 is fixed at the first shaped steel boundary beam 1 inboard of broach below, second slide 6 is fixed at the second shaped steel boundary beam 2 inboards of broach below, first slide 5 is hugged closely and is fallen 4 tops of making an uproar in shifting, and can further with shift fall make an uproar 4 links firmly of making an uproar, second slide 6 is located first slide 5 below or top all can, the first slide 5 below of being located that fig. 2 shows, the two has the area of repetition or mating in vertical direction, that is to say, at the flexible in-process of bridge, guarantee that first slide 5 and second slide 6 can not appear the separation and appear the gap. As shown in fig. 3, another practical manner of the first sliding plate 5 and the second sliding plate 6 is to make the first sliding plate 5 into a deep narrow groove shape, with the notch facing the direction of the first sliding plate 5, make the first sliding plate 5 into a sheet or thin plate shape, and make the second sliding plate 6 slide back and forth in the groove of the first sliding plate 5 as the expansion joint is increased and decreased, but to ensure that the second sliding plate 6 is not completely separated from the groove of the first sliding plate 5.
In order to enhance the bearing effect of the support frame 3, a section of horizontal bottom surface 33 is further arranged at the bottom of the support frame 3, correspondingly, as shown in fig. 4, a transverse step 11 which faces the direction of the expansion joint and is integrally formed with the first profile steel boundary beam 1 is convexly extended at the lower part of the first profile steel boundary beam 1, the horizontal bottom surface 33 of the support frame is supported by the step 11, the end part from the bottom surface to the top surface of the support frame 3 is an inclined surface, a complete rectangular plate is not formed, and the weight is reduced on the premise of ensuring the bearing capacity.
In order to enhance the fixing effect of the profile steel edge beam and the support frame 3 and improve the stability of the whole telescopic device, referring to fig. 3, the side end of the first profile steel edge beam 1 is provided with a bolt hole, the vertical surfaces of the first profile steel edge beam 1 and the support frame 3 are fixed through a plurality of fastening bolts 12, and the fastening bolts 12 sequentially penetrate through the vertical surface 31 of the support frame 3 and the profile steel edge beam and are embedded into concrete along with the profile steel edge beam, so that the stability of the support frame 3 is better.
The deflection noise reduction mechanism 4 plays a role in deflection and shock absorption, specifically, the deflection noise reduction mechanism 4 in the embodiment includes a groove-shaped support groove 41, an opening of the support groove 41 faces upward, a compression spring or an elastic rubber column is fixed in the groove, and the other end of the compression spring or the elastic rubber column is fixed below the first sliding plate 5 and can also be fixed through a limit groove. Wherein, support groove 41 can weld on the top surface of support frame 3, or as shown in fig. 5, directly set up the notch that is sunken that forms to be less than the top surface at the top surface of support frame 3, and compression spring or elastic rubber post are in this notch, and compression spring and elastic rubber post have also adapted to the displacement of the certain upper and lower range of bridge.
In this embodiment, a water stop 8 is further disposed between the expansion joints, and the water stop 8 is not directly disposed on the inner end surface of the conventional profile steel side beam, but is mounted on the bottom side of the profile steel side beam, as shown in fig. 3, or is poured and fixed on the bridge body, and is fastened by screws, as shown in fig. 2. For example, a convex column may be provided at the bottom side of the profile steel edge beam, and both ends of the waterstop 8 are perforated and sleeved in the convex column.
In this embodiment, support frame 3 is enclosed synthetic polygon by a plurality of corrosion resistant plate material, and the length of support frame 3 is the same with the length of first shaped steel boundary beam, and the welding has vertical or inclined fastening muscle from the top surface to the inclined plane, and the gap position can be packed foamed polyurethane, and foamed polyurethane can further reduce the noise when shifting is flexible.
In this embodiment, the boundary beam is I-shaped boundary beam, this I-shaped boundary beam includes two parallel walls, the upper wall contains the broach 15 that extends, form the draw-in groove 9 that links firmly with anchor board 13 between two walls, draw-in groove 9 can be vertical face or inclined plane, be connected with the anchor board 13 that a plurality of intervals set up side by side in the draw-in groove 9 of a shaped steel boundary beam, circular port or rectangle macropore can also be seted up in the middle of a plurality of anchor boards 13, concatenate a plurality of anchor boards 13 through penetrating reinforcing bar or steel sheet and link firmly, further strengthen the stability of shaped steel boundary beam. The anchor plate 13 is welded to the beam body by the anchor bars while being buried in the concrete.
In this embodiment, there is the resistant rubber that extrudees of high strength heat seal on the draw-in groove 9 face that shaped steel boundary beam and concrete contacted, and this resistant rubber that extrudees of high strength is used for the boundary beam to form the extrusion and the restoration of appropriate deformation when taking place to shift, avoids its direct damage concrete.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A comb tooth type bridge expansion device comprises a first profile steel edge beam and a second profile steel edge beam which are positioned at two sides of an expansion joint, wherein the end sides of the two profile steel edge beams are provided with comb tooth structures which are arranged in a staggered manner, it is characterized in that a support frame is fixed in the inner side direction of the first section steel boundary beam, the support frame comprises a vertical surface and a top surface, the vertical surface of the support frame is fastened with the inner side of the boundary beam, the top surface of the support frame is fixed with a position-changing noise-reducing mechanism, a first sliding plate and a second sliding plate are arranged above the position-changing noise-reducing mechanism, the first sliding plate and the second sliding plate are respectively fixed at the inner side of a first section steel boundary beam and the inner side of a second section steel boundary beam below the comb teeth, the first sliding plate is tightly attached to the position-changing noise-reducing mechanism, the second sliding plate slides relative to the first sliding plate and has a superposed area part, the clearance caused by the upper part in the telescopic process can be completely covered by the matching of the first sliding plate and the second sliding plate.
2. The comb-tooth bridge expansion device according to claim 1, wherein the support frame further comprises a bottom surface, a transverse step which faces the direction of the expansion joint and is integrally formed with the first profile steel side beam is protruded from the lower portion of the first profile steel side beam, the step supports the bottom surface of the support frame, and the end portion from the bottom surface to the top surface of the support frame is an inclined surface.
3. The comb-tooth bridge expansion device according to claim 1 or 2, wherein the vertical surfaces of the profile steel side beams and the support frame are fixed by a plurality of fastening bolts which penetrate through the profile steel side beams and are embedded into concrete along with the profile steel side beams.
4. The comb-tooth bridge expansion device according to claim 1 or 2, wherein the first sliding plate and the second sliding plate are both block-shaped sliding steel plates and are arranged up and down; or the first sliding plate is arranged to be a narrow groove, the second sliding plate is blocky, and the second sliding plate extends into the narrow groove to slide.
5. The comb-tooth bridge expansion device of claim 1, wherein the shift noise reduction mechanism comprises a groove-shaped support groove, and a compression spring or an elastic rubber column is fixed in the groove.
6. The comb-tooth bridge expansion device according to claim 1 or 5, wherein a water stop is further arranged between the expansion joints, and the water stop is mounted on the bottom side of the profile steel side beam or is fixed on the bridge body under the side beam in a pouring mode.
7. The comb-tooth bridge expansion device of claim 2, wherein the support frame is a polygon surrounded by a plurality of stainless steel plates, fastening ribs are welded from the top surface to the inclined surface, and foamed polyurethane is filled in the gap.
8. The comb-tooth bridge expansion device according to claim 1, wherein the edge beam is an i-shaped edge beam, the i-shaped edge beam comprises two parallel walls, a clamping groove fixedly connected with the anchoring plates is formed between the two walls, and the clamping groove of one section steel edge beam is connected with a plurality of anchoring plates side by side.
9. The bridge expansion device of claim 8, wherein a high strength and compression resistant rubber is heat-sealed on the concrete-contacting groove surface of the profile steel edge beam.
10. The comb-tooth bridge expansion device according to claim 8, wherein the clamping groove of each profile steel edge beam is connected with a plurality of anchor plates arranged at intervals, a circular hole or a rectangular large hole is formed in the middle of each anchor plate, and the plurality of anchor plates are fixedly connected in series through penetrating steel bars or steel plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120860361.9U CN214882923U (en) | 2021-04-25 | 2021-04-25 | Comb-tooth type bridge expansion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120860361.9U CN214882923U (en) | 2021-04-25 | 2021-04-25 | Comb-tooth type bridge expansion device |
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| CN214882923U true CN214882923U (en) | 2021-11-26 |
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| CN202120860361.9U Active CN214882923U (en) | 2021-04-25 | 2021-04-25 | Comb-tooth type bridge expansion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150574A (en) * | 2021-12-23 | 2022-03-08 | 张和平 | Spring support type bridge expansion joint structure |
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2021
- 2021-04-25 CN CN202120860361.9U patent/CN214882923U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150574A (en) * | 2021-12-23 | 2022-03-08 | 张和平 | Spring support type bridge expansion joint structure |
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