CN215518337U - Large-displacement seamless expansion device - Google Patents
Large-displacement seamless expansion device Download PDFInfo
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- CN215518337U CN215518337U CN202120538531.1U CN202120538531U CN215518337U CN 215518337 U CN215518337 U CN 215518337U CN 202120538531 U CN202120538531 U CN 202120538531U CN 215518337 U CN215518337 U CN 215518337U
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Abstract
The utility model belongs to the technical field of bridge expansion joint devices, and particularly discloses a large-displacement seamless expansion device. The device comprises two displacement boxes, two side longitudinal beams, two middle longitudinal beams and two supporting cross beams, wherein the two displacement boxes are respectively arranged on opposite surfaces of adjacent beam bodies; two side longitudinal beams are arranged and are respectively arranged on the opposite surfaces of the displacement box; the middle longitudinal beam is arranged between the two side longitudinal beams; a gap between the side longitudinal beam and the middle longitudinal beam is filled with a high-molecular elastomer filling material; the supporting cross beam is arranged at the bottom of the middle longitudinal beam, two ends of the supporting cross beam respectively extend into the two displacement boxes, and the supporting cross beam is connected with the middle longitudinal beam in a sliding mode. The utility model has simple structure, beautiful appearance and lower cost, realizes the application of the seamless expansion device under the working condition of large displacement, and overcomes the defects of easy leakage and short service life of the traditional expansion joint.
Description
Technical Field
The utility model belongs to the technical field of bridge expansion joint devices, and particularly relates to a large-displacement seamless expansion device.
Background
The bridge expansion device is an important component of a road surface of a highway bridge, and has the main functions of adapting to bridge expansion displacement caused by temperature expansion and contraction of the bridge, contraction and creep of a concrete and prestressed concrete bridge, expansion and contraction displacement of a bridge superstructure under the action of load and the like so as to ensure the safety and comfort of vehicle passing on the bridge. Since the 80 th of the 20 th century, with the development of highway bridge construction in China, various types of bridge expansion devices are largely used on bridges, and except for the traditional embedded expansion device and the plate-type rubber expansion device, a module expansion device and a large-displacement comb plate type expansion device are successively developed.
At present, the seamless expansion device is the development trend of highway bridges at home and abroad, and the seamless expansion device is applied to some engineering projects. However, the conventional seamless expansion device has extremely limited expansion capability, generally not exceeding 100mm, and cannot meet the functional requirement of large displacement expansion.
Based on the defects, the prior large-displacement seamless expansion device needs to be further improved and designed, is simple in construction structure and can meet the functional requirements of large-displacement working conditions.
Disclosure of Invention
The utility model provides a large-displacement seamless expansion device, aiming at the defects or the improvement requirements of the prior art, wherein the large-displacement seamless expansion device is correspondingly designed by combining the self characteristics of a bridge structure and the characteristics of stress displacement of the bridge, and the structures and the specific arrangement modes of key components of the large-displacement seamless expansion device, such as a displacement box, a side longitudinal beam, a middle longitudinal beam, a supporting cross beam and a high polymer elastomer filling material, are researched and designed, so that the problems that the conventional seamless expansion device cannot meet the functional requirement of large-displacement expansion can be effectively solved, and meanwhile, the high polymer elastomer filling material has strong deformability, wear resistance and corrosion resistance, and can completely prevent rainwater or foreign matters from entering the interior due to seamless surface, thereby overcoming the defects that the conventional expansion joint is easy to leak and has short service life.
In order to achieve the above object, the present invention provides a large displacement seamless telescoping device, comprising a displacement box, side longitudinal beams, a middle longitudinal beam and a supporting cross beam, wherein,
the two displacement boxes are arranged on the opposite surfaces of the adjacent beam bodies respectively;
the number of the side longitudinal beams is two, and the two side longitudinal beams are respectively arranged on opposite surfaces of the displacement box; the middle longitudinal beam is arranged between the two side longitudinal beams; a gap between the side longitudinal beam and the middle longitudinal beam is filled with a high-molecular elastomer filling material;
the supporting cross beam is arranged at the bottom of the middle longitudinal beam, two ends of the supporting cross beam respectively extend into the two displacement boxes, and the supporting cross beam is connected with the middle longitudinal beam in a sliding mode, so that the large displacement working condition between adjacent beam bodies is met through the displacement of the supporting cross beam in the displacement boxes and the elastic deformation of the high polymer elastomer filling material.
As a further preferred, still include sliding connection subassembly, sliding connection subassembly includes U type holder, supporting element and compresses tightly the component, U type holder cover is established the periphery of supporting crossbeam, and the one end and the well longeron bottom fixed connection of this U type holder, the supporting element is located well longeron with between the supporting crossbeam, compress tightly the component and locate U type holder with between the supporting crossbeam.
Preferably, the top surfaces of the side stringers, the middle stringer and the polymer elastomer filling material are flush with the top surface of the pavement layer.
More preferably, a plurality of the center stringers are provided, and a gap between adjacent center stringers is also filled with a polymer elastomer filler.
Preferably, a cover plate is arranged at the bottom of the high polymer elastomer filling material, and the cover plate is connected with the middle longitudinal beam and/or the side longitudinal beam through screws.
Preferably, the side longitudinal beams are L-shaped longitudinal beams, the middle longitudinal beam is a T-shaped longitudinal beam, short sides of the L-shaped longitudinal beams are fixedly connected with the displacement box, and panels of the T-shaped longitudinal beams are slidably connected with the supporting cross beam.
As a further preferred option, a pressing element is further arranged between the displacement box and the top surface of the supporting beam, a supporting element is further arranged between the displacement box and the bottom surface of the supporting beam, the displacement box comprises a limiting plate arranged along the direction of the transverse bridge, and the limiting plate presses the supporting beam.
It is further preferred that a wear-resistant material is arranged between the pressing element and the supporting cross member, and a wear-resistant material is also arranged between the supporting element and the supporting cross member.
Preferably, the displacement box is cast and formed with the beam body anchoring.
Generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:
1. the utility model has simple structure, beautiful appearance and lower cost, and realizes the application of the seamless expansion device under the working condition of large displacement.
2. According to the device provided by the utility model, when the adjacent beam bodies generate relative displacement, the displacement box provides a space for supporting the movement of the cross beam, and the matching of the middle longitudinal beam and the high polymer elastomer filling material provides the margin for the relative displacement of the adjacent beam bodies.
3. The utility model adopts the macromolecular elastomer filling material, has strong deformation capability, wear resistance and corrosion resistance, is smooth when a vehicle runs, has no sudden jump and noise, and overcomes the defects of easy leakage and short service life of the traditional expansion joint because the surface of the expansion joint is seamless and completely prevents rainwater or foreign matters from entering the interior.
4. The utility model realizes the integral uniform expansion through the uniform force transmission of the high polymer elastomer, and overcomes the defect that the traditional expansion joint is easy to have nonuniform displacement.
Drawings
FIG. 1 is a schematic structural view of a large displacement seamless telescoping device according to a preferred embodiment of the present invention;
fig. 2 is a schematic view showing the connection relationship between the center longitudinal beam and the supporting cross beam according to the present invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-macromolecular elastomer filling material, 2-side longitudinal beam, 3-middle longitudinal beam, 4-screw, 5-cover plate, 6-supporting cross beam, 7-displacement box, 8-supporting element, 9-pressing element, 10-U-shaped retainer, 11-pavement layer and 12-beam body.
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 specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, the large displacement seamless expansion device provided by the embodiment of the utility model comprises two displacement boxes 7, two side longitudinal beams 2, two middle longitudinal beams 3 and two supporting cross beams 6, wherein the two displacement boxes 7 are respectively arranged on opposite surfaces of adjacent beam bodies 12. In the utility model, the displacement boxes 7, the side longitudinal beams 2 and the middle longitudinal beam 3 are arranged in parallel along the transverse bridge direction and are arranged between two adjacent beam bodies 12. Specifically, the displacement boxes 7 are fixedly provided on the beam body 12, the top surfaces of the displacement boxes 7 are flush with the top surface of the pavement layer laid on the top surface of the beam body 12, and the two displacement boxes 7 are provided so as to have openings facing each other for the supporting beams 6 to pass through. Two ends of the supporting beam 6 extend into the two displacement boxes 7 respectively, the side longitudinal beams 2 and the middle longitudinal beam 3 are further arranged on the supporting beam 6 and between the two displacement boxes 7, wherein the number of the side longitudinal beams 2 is two, and each side longitudinal beam 2 is fixedly arranged with one displacement box 7. In the present invention, the side member 2 and the displacement box 7 may be fixedly connected by welding or anchoring, and other fixing methods are also applicable to the present invention. Well longeron 3 sets up between two limit longerons 2, generally speaking, well longeron 3 is provided with one or more according to the distance between the adjacent roof beam body 12, well longeron 3 and limit longeron 2 and the clearance intussuseption between well longeron 3 and the well longeron 3 are filled with polymer elastomer filling material 1, in this way, can adapt to the relatively big displacement between the adjacent roof beam body 12 on the one hand, on the other hand, this 1 top surface of polymer elastomer filling material and pavement layer top surface parallel and level, it is smooth-going when making the vehicle travel, do not have kick and noise, and simultaneously, polymer elastomer filling material, the strong and wear-resisting corrosion-resistant expansion joint of deformability, and because seamless complete prevention rainwater or foreign matter entering inside in the surface, the easy seepage of tradition has been overcome, the shortcoming of short-lived. Meanwhile, the supporting cross beam 6 is arranged along the longitudinal bridge direction, the supporting cross beam 6 and the middle longitudinal beam 3 are arranged in a sliding mode, namely when adjacent beam bodies are subjected to relative displacement, the displacement box 7 provides a space for the movement of the supporting cross beam 6, the middle longitudinal beam 3 and the high polymer elastomer filling material 1 are matched to provide a margin for the relative displacement of the adjacent beam bodies, and in this way, the requirement for supporting strength of the bridge can be met, and the functional requirement for a large displacement working condition can be met.
Further, the large-displacement seamless expansion device provided by the utility model further comprises a sliding connection assembly, wherein the sliding connection assembly comprises a U-shaped retainer 10, a supporting element 8 and a pressing element 9, the U-shaped retainer 10 is sleeved on the periphery of the supporting cross beam 6, one end of the U-shaped retainer 10 is fixedly connected with the bottom of the middle longitudinal beam 3, the supporting element 8 is arranged between the middle longitudinal beam 3 and the supporting cross beam 6, and the pressing element 9 is arranged between the U-shaped retainer 10 and the supporting cross beam 6.
In a preferred embodiment of the present invention, the top surfaces of the side frame members 2, the top surface of the center frame member 3, and the top surface of the elastomer filling material 1 are flush with the top surface of the pavement layer 11, so that the vehicle runs smoothly without jumps and noises.
In a preferred embodiment of the present invention, the bottom of the polymeric elastomer filling material 1 is provided with a cover plate 5, and the cover plate 5 is connected with the middle longitudinal beam 3 and/or the side longitudinal beam 2 through screws 4. In this way, further prevented inside rainwater or the foreign matter entering, overcome the easy seepage of traditional expansion joint, the shortcoming of short-lived.
In a preferred embodiment of the utility model, a pressing element 9 is further arranged between the displacement box 7 and the top surface of the supporting beam 6, a supporting element 8 is further arranged between the displacement box 7 and the bottom surface of the supporting beam 6, and the displacement box 7 comprises a limiting plate arranged along the transverse bridge direction, and the limiting plate presses the supporting beam 6. A wear-resistant material is arranged between the pressing element 9 and the supporting cross beam 6, and a wear-resistant material is also arranged between the supporting element 8 and the supporting cross beam 6.
In a preferred embodiment of the present invention, the side stringers 2 are L-shaped stringers, the center stringer 3 is a T-shaped stringer, the short side of the L-shaped stringer is fixedly connected to the displacement box 7, and the panel of the T-shaped stringer is slidably connected to the supporting beam 6.
In a preferred embodiment of the utility model, the displacement box 7 is cast and anchored with the beam 12.
Specifically, the large-displacement seamless expansion device provided by the utility model is arranged on a beam body 12 and a pavement layer 11 covered on the beam body, the expansion device comprises side longitudinal beams 2 and middle longitudinal beams 3 which are arranged along the transverse bridge direction of a bridge and a supporting cross beam 6 which is arranged along the longitudinal bridge direction of the bridge, the middle longitudinal beams 3 are all positioned between the two side longitudinal beams 2, the number of the middle longitudinal beams can be increased or decreased according to the displacement amount of the expansion device, gaps formed by the adjacent side longitudinal beams and the middle longitudinal beams are filled with high-molecular elastomer filling materials 1, the bottom of the expansion device is provided with a cover plate 5 and screws 4 for single-side fixation, and the top surfaces of the expansion device are flush with the top surfaces of the side longitudinal beams 2, the middle longitudinal beams 3 and the pavement layer 11. The supporting beam 6 is bridged between the beam bodies 12 on the two sides, the two end parts of the supporting beam are anchored and poured by the displacement box 7 and the beam body structure, and a moving space is provided for the supporting beam 6. And a supporting element 8 is arranged between the lower surface of the supporting beam 6 and the upper surface of the displacement box 7, and a pressing element 9 is arranged between the upper surface of the supporting beam 6 and the lower surface of the displacement box 7, and respectively plays a role in bearing load and pre-pressing. The side longitudinal beam 2 and the displacement box 7 are fixedly connected through welding or other connecting modes.
As shown in fig. 2, the supporting cross beam 6 and the middle longitudinal beam 3 intersect to form a supporting element 8, a pressing element 9 and a U-shaped retainer 10, wherein the U-shaped retainer 10 and the middle longitudinal beam 3 are fixed by welding or other coupling means, and the supporting element 8 and the pressing element 9 are respectively positioned on the upper surface and the lower surface of the supporting cross beam 6. And the supporting element 8 and the pressing element 9 are both provided with low-friction-coefficient wear-resistant materials which are closely attached and matched with the upper surface and the lower surface of the supporting beam 6 and can freely slide.
The utility model discloses device simple structure, the appearance is pleasing to the eye, and the cost is lower, and has realized the application of seamless telescoping device under big displacement operating mode.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the utility model, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A large-displacement seamless expansion device is characterized by comprising a displacement box (7), side longitudinal beams (2), a middle longitudinal beam (3) and a supporting cross beam (6),
two displacement boxes (7) are arranged, and the two displacement boxes (7) are respectively arranged on the opposite surfaces of the adjacent beam bodies (12);
the number of the side longitudinal beams (2) is two, and the two side longitudinal beams (2) are respectively arranged on opposite surfaces of the displacement box (7); the middle longitudinal beam (3) is arranged between the two side longitudinal beams (2); a gap between the side longitudinal beam (2) and the middle longitudinal beam (3) is filled with a high-molecular elastomer filling material (1);
the supporting cross beam (6) is arranged at the bottom of the middle longitudinal beam (3), two ends of the supporting cross beam (6) extend into the two displacement boxes (7) respectively, and the supporting cross beam (6) is connected with the middle longitudinal beam (3) in a sliding mode, so that the large displacement working condition between the adjacent beam bodies (12) is met through the displacement of the supporting cross beam (6) in the displacement boxes (7) and the elastic deformation of the high polymer elastomer filling material (1).
2. The large-displacement seamless telescoping device according to claim 1, further comprising a sliding connection assembly, wherein the sliding connection assembly comprises a U-shaped retainer (10), a supporting element (8) and a pressing element (9), the U-shaped retainer (10) is sleeved on the periphery of the supporting cross beam (6), one end of the U-shaped retainer (10) is fixedly connected with the bottom of the middle longitudinal beam (3), the supporting element (8) is arranged between the middle longitudinal beam (3) and the supporting cross beam (6), and the pressing element (9) is arranged between the U-shaped retainer (10) and the supporting cross beam (6).
3. A large displacement seamless telescopic device according to claim 1, wherein the top surfaces of the side frame members (2), the middle frame member (3) and the polymer elastomer filling material (1) are flush with the top surface of the pavement layer (11).
4. A large displacement seamless telescoping device according to claim 1, wherein the middle longitudinal beams (3) are provided in plurality, and gaps between adjacent middle longitudinal beams (3) are filled with a high molecular elastomer filling material (1).
5. A large displacement seamless telescoping device according to claim 1, characterized in that the bottom of the polymer elastomer filling material (1) is provided with a cover plate (5), and the cover plate (5) is connected with the middle longitudinal beam (3) and/or the side longitudinal beam (2) through screws (4).
6. A large displacement seamless telescopic device according to claim 1, characterized in that the side stringers (2) are L-stringers, the centre stringer (3) is a T-stringer, the short side of the L-stringers is fixedly connected to the displacement box (7), and the panels of the T-stringers are slidably connected to the supporting beam (6).
7. A large displacement seamless telescoping device according to claim 1, characterized in that a pressing element (9) is further arranged between the displacement box (7) and the top surface of the supporting beam (6), a supporting element (8) is further arranged between the displacement box (7) and the bottom surface of the supporting beam (6), and the displacement box (7) comprises a limiting plate arranged along the cross bridge direction, and the limiting plate presses the supporting beam (6).
8. A large displacement seamless telescopic device according to claim 2 or 7, characterized in that between the pressing element (9) and the supporting beam (6) is provided a wear resistant material, and between the supporting element (8) and the supporting beam (6) is also provided a wear resistant material.
9. A large displacement seamless telescoping device according to claim 1, characterized in that the displacement box (7) is cast and anchored with the beam body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538531.1U CN215518337U (en) | 2021-03-15 | 2021-03-15 | Large-displacement seamless expansion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120538531.1U CN215518337U (en) | 2021-03-15 | 2021-03-15 | Large-displacement seamless expansion device |
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| CN215518337U true CN215518337U (en) | 2022-01-14 |
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| CN202120538531.1U Active CN215518337U (en) | 2021-03-15 | 2021-03-15 | Large-displacement seamless expansion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991001A (en) * | 2022-05-20 | 2022-09-02 | 苏交科集团股份有限公司 | Easy-to-overhaul spliced bridge expansion joint structure and construction method thereof |
-
2021
- 2021-03-15 CN CN202120538531.1U patent/CN215518337U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991001A (en) * | 2022-05-20 | 2022-09-02 | 苏交科集团股份有限公司 | Easy-to-overhaul spliced bridge expansion joint structure and construction method thereof |
| CN114991001B (en) * | 2022-05-20 | 2024-07-12 | 苏交科集团股份有限公司 | Spliced bridge expansion joint structure easy to overhaul and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220214 Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. Address before: 430000 No.9, Wudong street, Qingshan District, Wuhan City, Hubei Province Patentee before: WUHAN HIRUN ENGINEERING EQUIPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |