CN109736188B - Large-span replaceable expansion joint device for railway bridge - Google Patents
Large-span replaceable expansion joint device for railway bridge Download PDFInfo
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- CN109736188B CN109736188B CN201910111737.3A CN201910111737A CN109736188B CN 109736188 B CN109736188 B CN 109736188B CN 201910111737 A CN201910111737 A CN 201910111737A CN 109736188 B CN109736188 B CN 109736188B
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- equidistant
- expansion joint
- section bar
- beam section
- span
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- 238000004873 anchoring Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 210000001331 nose Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a large-span replaceable expansion joint device for a railway bridge, which comprises an expansion joint and a supporting equidistant deflection device, wherein the expansion joint comprises an anchoring assembly, a side beam section bar, a middle beam section bar and a waterproof rubber belt; the two side beam sections are respectively arranged in beam end concrete at two sides; the support equidistant shifting device comprises a support component and an equidistant shifting device; the fixing plates at two ends of the equidistant deflection device are fixed on the side beam section bar through trapezoidal nuts, anchor steel bars and locking nuts. According to the invention, the long-span beam seam is divided into a plurality of beam seams by arranging the middle beam section and the supporting component, the supporting component is transversely arranged in a bridge direction, so that the waterproof rubber belt is supported, the situation that the waterproof rubber belt drops after accumulated water and dust are accumulated due to overlarge beam seams is avoided, the service life of the expansion joints at the beam ends is further prolonged, the uniform change of the distance of the beam seams is realized by adopting the equidistant deflection device, the accumulated water and dust accumulation amount is reduced, and the potential safety hazard caused by overlarge beam seams is solved.
Description
Technical Field
The invention belongs to the technical field of bridge accessories, and particularly relates to a large-span replaceable expansion joint device for a railway bridge.
Background
The universal drawing design expansion amount of the railway bridge expansion joint in China is 30-200, and when the expansion amount is larger than 200mm, special design is needed to adapt to the requirements of beam joint values and expansion amount. When the beam seam value is greater than 500mm or the expansion amount is greater than 500mm, the track sleeper cannot be paved, the large-displacement expansion device is required to support the track, and the structure is complex. The expansion joint with medium expansion amount within the expansion amount of 200-500mm does not need to carry out special support structure design on the rail, and the waterproof, dust accumulation and passing safety among the beam joints are considered. Traditional medium expansion joint adopts wide waterproof rubber tape to install, and after long-time use, waterproof rubber tape ponding deposition is serious, produces the phenomenon of falling, causes more ponding and deposition, causes the destruction of waterproof rubber tape easily. Sometimes, the section of the waterproof rubber belt is provided with a porous shape, so that the deformation resistance of the waterproof rubber belt is improved, the waterproof rubber belt is difficult to play a role in preventing falling, the waterproof rubber belt is difficult to produce, and the manufacturing cost is high. Because the gap of the large-span bridge beam end is not easy to control, the deviation of the beam gap value from the design value is large, so that the theoretical design expansion joint cannot be installed, the water leakage and ballasting of the beam end are caused, and the service life of the bridge support is influenced. When the beam joint value is too large, the potential safety hazard of bridge deck construction maintainers is also easily caused, and the safety construction is not facilitated.
Disclosure of Invention
In order to solve the technical problems, the invention provides a large-span replaceable expansion joint device for a railway bridge.
The aim of the invention can be achieved by the following technical scheme:
the large-span replaceable expansion joint device for the railway bridge comprises an expansion joint and a supporting equidistant displacement device, wherein the expansion joint comprises an anchoring assembly, a side beam section bar, a middle beam section bar and a waterproof rubber belt;
the anchoring assembly comprises an anchoring steel bar, a trapezoidal nut, a locking nut and an anchoring screw rod;
the waterproof rubber belt comprises two connecting lugs and a telescopic body between the two connecting lugs;
the two side beam sections are respectively arranged in beam end concrete at two sides, each side beam section consists of a trapezoidal nut mounting groove and a double-cavity structure, each middle beam section is of a two-cavity structure, the double-cavity structure is divided into a large cavity and a small cavity, the large cavity is used for penetrating connecting lugs of the waterproof rubber belt, and the small cavity is used for fixing connecting lugs of the waterproof rubber belt;
the support equidistant displacement device comprises a support assembly and equidistant displacement devices, the support assembly and the equidistant displacement devices are perpendicular to the bridge direction, the support assembly comprises a support box, a connecting nose, a telescopic beam, a limiting plate, a stop bar, a sliding plate and a middle beam bolt, the support box is arranged in beam end concrete, the sliding plate is limited in the support box by the stop bar, the telescopic beam of the sliding plate is in sliding fit with the sliding plate, and the middle part of the telescopic beam is fixed with the middle beam section by the middle beam bolt;
the equidistant device that shifts includes fixed plate, two holes even board, three holes even board, boundary beam axle, well roof beam backing plate, loose axle, stop nut, the fixed plate at equidistant device both ends that shifts passes through trapezoidal nut, anchor reinforcing bar, lock nut is fixed on the boundary beam section bar, well roof beam axle passes through fixing bolt to be connected on well roof beam section bar.
Further, the anchor assembly is secured within the beam-end concrete.
Further, the side beam section bar is arranged along the bridge direction, and a plurality of anchoring assemblies are vertically fixed on the surface of the beam leaning end of the side beam section bar.
Further, the middle beam section bar is arranged on the supporting equidistant shifting device, and the middle beam section bar is arranged along the bridge direction.
Further, the support component and the equidistant shifting device are arranged at equal intervals.
Further, the supporting box is located below the boundary beam section bar.
Further, a limiting plate is fixed on the end side of the sliding plate.
The invention has the beneficial effects that:
according to the invention, the long-span beam seam is divided into a plurality of beam seams by arranging the middle beam section and the supporting component, the supporting component is transversely arranged, the waterproof rubber belt is supported, the situation that the waterproof rubber belt drops after accumulated water and dust are accumulated due to overlarge beam seams is avoided, the service life of the expansion joints at the beam ends is further prolonged, the uniform change of the beam seam distance is realized by adopting the equidistant shifting device, the situation that the beam seam change is uneven is avoided, the accumulated water and dust accumulation amount is reduced, and the potential safety hazard caused by overlarge beam seams is solved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a large-span replaceable expansion joint device for a railroad bridge;
FIG. 2 is a view B of FIG. 1;
FIG. 3 is a view of AA of FIG. 2;
FIG. 4 is a schematic structural view of an embodiment 2 of a large-span replaceable expansion joint device for a railroad bridge according to the present invention;
the diagram is: 1. the support assembly, 11, the supporting box, 12, the telescopic beam, 13, the slide plate, 14, the stop bar, 15, the connecting nose, 16, the limiting plate, 17, the center sill bolt, 2, the boundary beam section bar, 21, the waterproof rubber belt, 3, the anchor assembly, 30, the anchor reinforcing steel bar, 31, the lock nut, 32, the trapezoidal nut, 4, the equidistant position changing device, 41, the fixed plate, 42, the two-hole connecting plate, 43, the three-hole connecting plate, 44, the boundary beam shaft, 45, the center sill shaft, 46, the movable shaft, 47, the limiting nut, 48, the center sill backing plate, 5 and the center sill section bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-3, a large-span replaceable expansion joint device of a railway bridge comprises an expansion joint and a supporting equidistant displacement device, wherein the expansion joint comprises an anchoring assembly 3, a side beam section bar 2, a middle beam section bar 5 and a waterproof rubber belt 21;
the anchoring assembly 3 is fixed in the beam-end concrete, and the anchoring assembly 3 comprises an anchoring steel bar 30, a trapezoidal nut 32, a locking nut 31 and an anchoring screw;
the waterproof rubber belt 21 comprises two connecting lugs and a telescopic body between the two connecting lugs;
two side beam sections 2 are respectively arranged in beam end concrete at two sides, the side beam sections 2 are arranged along the bridge direction, a plurality of anchoring assemblies 3 are vertically fixed on the surface of the side beam sections 2 close to the beam end, the side beam sections 2 consist of a trapezoidal nut mounting groove and a double-cavity structure, the middle beam section 5 is of a two-cavity structure, the double-cavity structure is divided into a large cavity and a small cavity, the large cavity is used for penetrating through a connecting lug of the waterproof rubber belt 21, and the small cavity is used for fixing a connecting lug of the waterproof rubber belt 21; the middle beam section bar 5 is arranged on the supporting equidistant displacement device, and the middle beam section bar 5 is arranged along the bridge direction;
the support equidistant deflection device comprises a plurality of groups of support assemblies 1 and equidistant deflection devices 4, the support assemblies 1 and the equidistant deflection devices 4 are arranged at equal intervals, the support assemblies 1 and the equidistant deflection devices 4 are arranged perpendicular to the bridge direction, the support assemblies 1 comprise support boxes 11, connecting noses 15, telescopic beams 12, limiting plates 16, stop bars 14, sliding plates 13 and middle beam bolts 17, the support boxes 11 are arranged in beam-end concrete, the support boxes 1 are positioned below the side beam section bars 2, the sliding plates 13 are limited in the support boxes 11 by the stop bars 14, the limiting plates 16 are fixed at the end sides of the sliding plates 13, the telescopic beams 12 are in sliding fit with the sliding plates 13, the telescopic beams 12 slide on the sliding plates 13 to realize the telescopic function, the middle parts of the telescopic beams 12 are fixed with the middle beam section bars 5 by the middle beam bolts 17 to realize the supporting function of the middle beam section bars 5; the equidistant deflection device 4 comprises a fixed plate 41, two hole connecting plates 42, three hole connecting plates 43, a side beam shaft 44, a middle beam shaft 45, a middle beam backing plate 48, a movable shaft 46 and a limit nut 47, wherein the fixed plates 41 at two ends of the equidistant deflection device 4 are fixed on the side beam section 2 through a trapezoidal nut 32, an anchor reinforcing steel bar 30 and a lock nut 31, the middle beam shaft 45 is connected on the middle beam section 5 through a fixed bolt, and when the beam seam value is in telescopic change, the distance between the middle beam and the side beam is uniformly controlled to change through the equidistant deflection device, so that the equidistant deflection of the beam seam value is realized;
according to the invention, the long-span beam seam is divided into a plurality of beam seams by arranging the middle beam section and the supporting component, the supporting component is transversely arranged, the waterproof rubber belt is supported, the situation that the waterproof rubber belt drops after accumulated water and dust are accumulated due to overlarge beam seams is avoided, the service life of the expansion joints at the beam ends is further prolonged, the uniform change of the beam seam distance is realized by adopting the equidistant shifting device, the situation that the beam seam change is uneven is avoided, the accumulated water and dust accumulation amount is reduced, and the potential safety hazard caused by overlarge beam seams is solved.
Example 2
Referring to fig. 4, a large-span replaceable expansion joint device of a railway bridge comprises an expansion joint and a supporting equidistant displacement device, wherein the expansion joint comprises an anchoring assembly 3, a side beam section bar 2, a middle beam section bar 5 and a waterproof rubber belt 21;
the anchoring assembly 3 is fixed in the beam-end concrete, and the anchoring assembly 3 comprises an anchoring steel bar 30, a trapezoidal nut 32, a locking nut 31 and an anchoring screw;
the waterproof rubber belt 21 comprises two connecting lugs and a telescopic body between the two connecting lugs;
two side beam sections 2 are respectively arranged in beam end concrete at two sides, the side beam sections 2 are arranged along the bridge direction, a plurality of anchoring assemblies 3 are vertically fixed on the surface of the side beam sections 2 close to the beam end, the side beam sections 2 consist of a trapezoidal nut mounting groove and a double-cavity structure, the middle beam section 5 is of a two-cavity structure, the double-cavity structure is divided into a large cavity and a small cavity, the large cavity is used for penetrating through a connecting lug of the waterproof rubber belt 21, and the small cavity is used for fixing a connecting lug of the waterproof rubber belt 21; in the embodiment, the number of the middle beam section bars 5 is two, the two middle beam section bars 5 are arranged in parallel, the two middle beam section bars 5 are all arranged on the supporting equidistant position changing device, and the two middle beam section bars 5 are arranged along the bridge direction;
the support equidistant deflection device comprises a plurality of groups of support assemblies 1 and equidistant deflection devices 4, the support assemblies 1 and the equidistant deflection devices 4 are arranged at equal intervals, the support assemblies 1 and the equidistant deflection devices 4 are arranged perpendicular to the bridge direction, the support assemblies 1 comprise support boxes 11, connecting noses 15, telescopic beams 12, limiting plates 16, stop bars 14, sliding plates 13 and middle beam bolts 17, the support boxes 11 are arranged in beam-end concrete, the support boxes 1 are positioned below the side beam section bars 2, the sliding plates 13 are limited in the support boxes 11 by the stop bars 14, the limiting plates 16 are fixed at the end sides of the sliding plates 13, the telescopic beams 12 are in sliding fit with the sliding plates 13, the telescopic beams 12 slide on the sliding plates 13 to realize the telescopic function, the middle parts of the telescopic beams 12 are fixed with the middle beam section bars 5 by the middle beam bolts 17 to realize the supporting function of the middle beam section bars 5; the equidistant shifting device 4 comprises a fixed plate 41, two-hole connecting plates 42, three-hole connecting plates 43, side beam shafts 44, a middle beam shaft 45, a middle beam base plate 48, a movable shaft 46 and a limit nut 47, wherein the fixed plates 41 at two ends of the equidistant shifting device 4 are fixed on the side beam section 2 through the trapezoidal nuts 32, the anchor reinforcing steel bars 30 and the lock nuts 31, the middle beam shaft 45 is connected on the middle beam section 5 through fixing bolts, and when the beam seam value is changed in a telescopic way, the distance between the middle beam and the side beam is changed through uniform control of the equidistant shifting device, so that equidistant shifting of the beam seam value is realized.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The large-span replaceable expansion joint device for the railway bridge is characterized by comprising an expansion joint and a supporting equidistant displacement device, wherein the expansion joint comprises an anchoring assembly (3), a side beam section bar (2), a middle beam section bar (5) and a waterproof rubber belt (21);
the anchoring assembly (3) comprises an anchoring steel bar (30), a trapezoidal nut (32), a locking nut (31) and an anchoring screw;
the waterproof rubber belt (21) comprises two connecting lugs and a telescopic body between the two connecting lugs;
the two side beam sections (2) are respectively arranged in beam end concrete at two sides, the side beam sections (2) are composed of trapezoid nut mounting grooves and a double-cavity structure, the middle beam section (5) is of a two-cavity structure, the double-cavity structure is divided into a large cavity and a small cavity, the large cavity is used for penetrating connecting lugs of the waterproof rubber belt (21), and the small cavity is used for fixing connecting lugs of the waterproof rubber belt (21);
the support equidistant deflection device comprises a support assembly (1) and equidistant deflection devices (4), the support assembly (1) and the equidistant deflection devices (4) are perpendicular to the bridge direction, the support assembly (1) comprises a support box (11), a connecting nose (15), a telescopic beam (12), a limiting plate (16), a stop bar (14), a sliding plate (13) and a middle beam bolt (17), the support box (11) is installed in beam end concrete, the sliding plate (13) is limited in the support box (11) by the stop bar (14), the telescopic beam (12) of the sliding plate (13) is in sliding fit with the sliding plate (13), and the middle part of the telescopic beam (12) is fixed with the middle beam section bar (5) by the middle beam bolt (17);
the equidistant shifting device (4) comprises a fixed plate (41), two-hole connecting plates (42), three-hole connecting plates (43), a side beam shaft (44), a middle beam shaft (45), a middle beam base plate (48), a movable shaft (46) and a limit nut (47), wherein the fixed plates (41) at two ends of the equidistant shifting device (4) are fixed on the side beam section bar (2) through trapezoidal nuts (32), anchor reinforcing steel bars (30) and locking nuts (31), and the middle beam shaft (45) is connected on the middle beam section bar (5) through fixing bolts;
the support component (1) and the equidistant shifting device (4) are arranged at equal intervals;
a limiting plate (16) is fixed on the end side of the sliding plate (13).
2. A railroad bridge large span interchangeable expansion joint installation according to claim 1, wherein the anchor assembly (3) is fixed in the beam-end concrete.
3. The large-span replaceable expansion joint device for the railroad bridge according to claim 1, wherein the side beam section bar (2) is arranged along the bridge direction, and a plurality of anchoring assemblies (3) are vertically fixed on the surface of the side beam section bar (2) close to the beam end.
4. The large-span replaceable expansion joint device for the railway bridge according to claim 1, wherein the middle beam section bar (5) is arranged on a supporting equidistant displacement device, and the middle beam section bar (5) is arranged along the bridge direction.
5. A railroad bridge large span replaceable expansion joint apparatus according to claim 1, characterized in that the supporting box (11) is located below the side sill section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111737.3A CN109736188B (en) | 2019-02-12 | 2019-02-12 | Large-span replaceable expansion joint device for railway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111737.3A CN109736188B (en) | 2019-02-12 | 2019-02-12 | Large-span replaceable expansion joint device for railway bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109736188A CN109736188A (en) | 2019-05-10 |
| CN109736188B true CN109736188B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910111737.3A Active CN109736188B (en) | 2019-02-12 | 2019-02-12 | Large-span replaceable expansion joint device for railway bridge |
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| CN (1) | CN109736188B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809088A (en) * | 2022-04-22 | 2022-07-29 | 中山大学 | A flexible watertight fittings and tunnel waterproof connection structure for immersed tube tunnel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990022897U (en) * | 1997-09-03 | 1999-07-05 | 김태숙 | Expansion joint for bridge |
| JP2001271307A (en) * | 2000-03-23 | 2001-10-05 | Nippon Chuzo Kk | Mounting structure for expansion-contraction device for bridge |
| CN206319247U (en) * | 2016-10-18 | 2017-07-11 | 河北万亿交通设施有限公司 | Curve modulus type damping vibration attenuation multi-directional deflection retractor device |
| CN206941381U (en) * | 2017-07-07 | 2018-01-30 | 中铁第四勘察设计院集团有限公司 | Double-joint shallow shaped steel formula bridge extension joint |
| CN209686225U (en) * | 2019-02-12 | 2019-11-26 | 安徽尚德科技有限公司 | A kind of replaceable expansion gap device of railroad bridge large span |
-
2019
- 2019-02-12 CN CN201910111737.3A patent/CN109736188B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990022897U (en) * | 1997-09-03 | 1999-07-05 | 김태숙 | Expansion joint for bridge |
| JP2001271307A (en) * | 2000-03-23 | 2001-10-05 | Nippon Chuzo Kk | Mounting structure for expansion-contraction device for bridge |
| CN206319247U (en) * | 2016-10-18 | 2017-07-11 | 河北万亿交通设施有限公司 | Curve modulus type damping vibration attenuation multi-directional deflection retractor device |
| CN206941381U (en) * | 2017-07-07 | 2018-01-30 | 中铁第四勘察设计院集团有限公司 | Double-joint shallow shaped steel formula bridge extension joint |
| CN209686225U (en) * | 2019-02-12 | 2019-11-26 | 安徽尚德科技有限公司 | A kind of replaceable expansion gap device of railroad bridge large span |
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| CN109736188A (en) | 2019-05-10 |
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