CN110029575B - Bridge shock attenuation expansion joint - Google Patents
Bridge shock attenuation expansion joint Download PDFInfo
- Publication number
- CN110029575B CN110029575B CN201910418866.7A CN201910418866A CN110029575B CN 110029575 B CN110029575 B CN 110029575B CN 201910418866 A CN201910418866 A CN 201910418866A CN 110029575 B CN110029575 B CN 110029575B
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- corrugated frame
- bridge
- damping
- expansion joint
- frame
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- 230000035939 shock Effects 0.000 title claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 31
- 239000006096 absorbing agent Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 12
- 230000000994 depressogenic effect Effects 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 description 5
- 244000309464 bull Species 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
Abstract
The invention discloses a bridge damping expansion joint, which comprises a square groove type joint body and a damping structure positioned in the joint body, wherein the damping structure comprises a right corrugated frame and a left corrugated frame which are positioned at two sides in the joint body, the right corrugated frame and the left corrugated frame are identical in shape and structure and are arranged in a staggered mode on the same horizontal plane, the upper plane of each corrugated frame is flush with the top surface of a bridge body, and each corrugated frame is provided with a steel bar rod embedded in the bridge body; the top of the corrugated frame is provided with convex parts and concave parts which are arranged at intervals, the front ends of the convex parts and the tail ends of the concave parts are both arc-shaped, and parallel plates which are arranged in parallel with the convex parts are arranged below the concave parts; among this device, through the follow motion of bumper shock absorber, keep steady state when the seam body stretches because cold and hot effect shrink, distinguish the spring shock attenuation of conventional unitary, when the seam body is because the temperature changes the interval, can keep the relatively stable of spring self length, can not influence its damping performance because long-time tensile shrink, guarantee to cushion shock-absorbing structure's long-term effective.
Description
Technical Field
The invention relates to bridge and highway facilities, in particular to a bridge damping expansion joint.
Background
A bridge expansion joint is defined as an expansion joint between two beam ends, between a beam end and an abutment, or at a hinge joint of a bridge, in order to meet the requirement of deformation of a bridge deck. The expansion joint is required to be freely telescopic in two directions parallel to and perpendicular to the axis of the bridge, and the expansion joint is firm and reliable, and when a vehicle runs, the vehicle is smooth and free of sudden jump and noise; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient. At the position of the expansion joint, the handrail and the bridge deck pavement are disconnected. The function of the bridge expansion joints is to accommodate the displacement and coupling between the superstructure caused by vehicle loads and bridge building materials. Once the telescopic device of the skew bridge is damaged, the speed, the comfort and the safety of the vehicle are seriously influenced, and even the vehicle safety accident is caused.
Most of the existing bridge expansion joints are of a damping structure connected by direct springs as in Chinese patent publication No. CN208201627U 'a bridge expansion joint damping device', No. CN108755398A 'a bridge expansion joint', although the damping effect of the structure can be ensured within a certain time, after the expansion joint is used for a long time, the springs are also deformed along with the change of temperature during the continuous change of contraction and extension, so that the performance of the springs can be gradually reduced, and the damping performance can be greatly reduced.
Disclosure of Invention
The invention aims to provide a bridge damping expansion joint to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a bridge damping expansion joint comprises a square groove type joint body and a damping structure located in the joint body, wherein the damping structure comprises a right corrugated frame and a left corrugated frame which are located on two sides in the joint body, the right corrugated frame and the left corrugated frame are identical in shape and structure and are arranged in a staggered mode on the same horizontal plane, the upper plane of each corrugated frame is flush with the top surface of a bridge body, and each corrugated frame is provided with a steel bar rod embedded in the bridge body; corrugated frame top has bulge and the depressed part that the interval set up, bulge front end and depressed part tail end all are arc, be equipped with the parallel plate with bulge parallel arrangement below the depressed part, the parallel plate sets up through riser integrated into one piece with the depressed part tail end, be equipped with the bumper shock absorber on the riser, the bumper shock absorber includes damping spring, both ends all are equipped with the slide bar about damping spring, and both ends are equipped with sliding ring and gliding ring respectively about the slide bar, the spout has all been seted up at parallel plate top surface and bulge bottom surface, go up sliding ring and gliding ring respectively rather than the spout sliding connection that corresponds, and the synchronous and spout sliding connection who corresponds of slide bar.
Be equipped with tensile buffer bottom buffering shock-absorbing structure, tensile buffer is including fixing the horizon bar in ripple frame bottom, and the horizon bar front end has the squeeze bar, is equipped with between two sets of corresponding squeeze bars to laminate mutually and sliding connection's balancing stand with the squeeze bar leading flank, the balancing stand cross-section is the isosceles trapezoid shape of binding off upwards, is equipped with a loop bar rather than fixed connection at the balancing stand bottom, and the cartridge has rather than sliding connection's spring hook bottom cartridge, and the spring hook lower extreme is hung on the shackle that is located the seam body bottom surface, is equipped with the spring beam of two symmetries at the balancing stand top surface, and the spring beam rotates through flexible bull stick with the balancing stand to be connected, and the spring beam upper end rotates through flexible bull stick with the bulge of ripple frame to be connected.
As a preferred embodiment of the present invention: the reinforcing steel bar rod is in sealed butt joint with the back of the corrugated frame to form a square cavity, and silencing cotton is filled in the cavity.
As a still further preferable embodiment of the present invention: a gap is reserved between the vertical plate and the vertical surface of the corrugated frame corresponding to the vertical plate, and the side surface of the parallel plate at the bottom of the vertical plate is attached to the vertical surface of the corrugated frame and is not fixedly connected with the vertical surface of the corrugated frame.
Compared with the prior art, the invention has the beneficial effects that: among this device, follow motion through the bumper shock absorber, keep steady state when the body stitches because cold and hot effect shrink extends, distinguish conventional monogamy spring shock attenuation, when the body stitches because the temperature change interval, can keep the relatively stable of spring self length, can not influence its shock-absorbing performance because long-time tensile shrink, guarantee to cushion shock-absorbing structure's long-term effective, and simultaneously, setting through tensile bumper shock absorber, guarantee to cushion shock-absorbing structure's stability, avoid breaking away from with the bridge body because the ripple frame that drags and cause, further guaranteed that cushion shock-absorbing structure can carry out shock attenuation protection to the expansion joint for a long time.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a perspective view showing a part of the structure of the bellows frame according to the present invention.
Fig. 3 is an enlarged view of the tensile buffer of the present invention.
In the figure, 1-bridge body, 2-right corrugated frame, 3-left corrugated frame, 4-reinforcing steel bar rod, 5-convex part, 6-concave part, 7-vertical plate, 8-parallel plate, 9-shock absorber, 10-lower slip ring, 11-upper slip ring, 12-sliding rod, 13-shock absorbing spring, 14-sliding groove, 15-silencing cotton, 16-stretching buffer, 17-horizontal rod, 18-extrusion rod, 19-balance table, 20-loop rod, 21-spring hook, 22-shackle, 23-spring rod and 24-telescopic rotating rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, a bridge damping expansion joint comprises a square groove type joint body and a damping structure located in the joint body, wherein the damping structure comprises a right corrugated frame 2 and a left corrugated frame 3 which are located at two sides in the joint body, the right corrugated frame 2 and the left corrugated frame 3 are identical in shape and structure and are arranged in a staggered mode on the same horizontal plane, the upper plane of each corrugated frame is flush with the top surface of a bridge body 1, and each corrugated frame is provided with a steel bar rod 4 embedded in the bridge body 1; the top of the corrugated frame is provided with a convex part 5 and a concave part 6 which are arranged at intervals, the convex part 5 is used for being inserted into the concave part 6 on the opposite corrugated frame, thereby the stability of the structure of the seam body is kept when the seam body deforms, the front end of the convex part 5 and the tail end of the concave part 6 are both arc-shaped, a parallel plate 8 which is arranged in parallel with the convex part 5 is arranged below the concave part 6, the parallel plate 8 and the tail end of the concave part 6 are arranged by an integral forming through a vertical plate 7, a shock absorber 9 is arranged on the vertical plate 7, the shock absorber 9 comprises a shock absorbing spring 13, the upper end and the lower end of the shock absorbing spring 13 are both provided with a sliding rod 12, the upper end and the lower end of the sliding rod 12 are respectively provided with an upper sliding ring 11 and a lower sliding ring 10, the top surface of the parallel plate 8 and the bottom surface of the convex part 5 are both provided with sliding grooves 14, the upper, the bulge 5 is subjected to pressure so as to be located in the vertical direction, and the shock is absorbed and relieved through the shock absorber 9, so that the distance between the bulge 5 and the parallel plate 8 is kept stable rapidly, and the bridge body 1 is prevented from being damaged by the shock; through the follow motion of bumper shock absorber 9, keep steady state when the seam body because cold and hot effect shrink extends, can not influence its damping performance because long-time tensile shrink, guarantee to cushion shock-absorbing structure's long-term effective.
In order to ensure the stability of the buffering and damping structure and avoid the separation of the corrugated frame from the bridge body 1 caused by pulling, a stretching buffer 16 is arranged at the bottom of the buffering and damping structure, the stretching buffer 16 comprises a horizontal rod 17 fixed at the bottom of the corrugated frame, the front end of the horizontal rod 17 is provided with an extrusion rod 18, a balance table 19 which is jointed with the front side surface of the extrusion rod 18 and is in sliding connection is arranged between two groups of corresponding extrusion rods 18, the cross section of the balance table 19 is in an isosceles trapezoid shape with an upward closing, the bottom of the balance table 19 is provided with a loop rod 20 fixedly connected with the balance table, the bottom of the loop rod 20 is inserted with a spring hook 21 in sliding connection with the loop rod, the lower end of the spring hook 21 is hung on a hook ring 22 positioned at the bottom of the slot body, the top surface of the balance table 19 is provided with two symmetrical spring rods 23, the spring rods 23 are rotatably connected with the balance table 19 through telescopic rotating rods 24, the upper ends of the spring, the double spring rods 23 and the loop rods 20 form stable support for the balance table 19, when the width of a seam body is narrowed, the bridge body 1 and the corrugated frame are synchronously retracted, the stress direction between the bridge body 1 and the corrugated frame is the same at the moment, the pulling force is small, when the width of the seam body is enlarged, the bridge body 1 moves outwards, a certain pulling force is generated between the bridge body 1 and the corrugated frame at the moment, the pulling force is balanced through the pushing action of the stretching buffer 16, so that the corrugated frame is prevented from being separated from the bridge body 1 due to pulling, the long-term effectiveness of the buffering and damping structure is ensured, specifically, when the bridge body is inwards, the extrusion rods 18 extrude the balance table 19, the balance table 19 is descended, when the bridge body is outwards, the distance between the extrusion rods 18 is increased, the balance table 19 is upwards pulled through the spring rods 23, the extrusion rods 18 outwards pushed by the balance table 19, namely the extrusion rods 18 synchronously push the corrugated frame to move outwards, keeping the corrugated frame attached to the bridge body 1.
Example 2:
on embodiment 1's basis, the sealed butt joint in reinforcing bar pole 4 and the ripple frame back forms "mouth" font cavity to at the intussuseption of cavity intussuseption be filled with amortization cotton 15, when the vehicle passes through the expansion joint, with 1 surface collision on bridge body production vibrations, vibrations pass through ripple frame, reinforcing bar pole 4 transmits for amortization cotton 15, and amortization cotton 15 eliminates the noise that vibrations produced, and then also plays certain elimination effect to vibrations.
Example 3:
on embodiment 1's basis, leave the clearance between riser 7 and the vertical face of ripple frame rather than corresponding, and 8 sides of parallel plate and the vertical face of ripple frame of riser 7 bottom laminate mutually and are not fixed connection, and this design has guaranteed when receiving vibrations that parallel plate 8 can take place different vibrations with the ripple frame, avoids buffering shock-absorbing structure to produce resonance effect to further improve the security that the device is whole and bridge body 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A bridge damping expansion joint comprises a square groove type joint body and a damping structure located in the joint body, wherein the damping structure comprises a right corrugated frame (2) and a left corrugated frame (3) which are located on two sides in the joint body, the right corrugated frame (2) and the left corrugated frame (3) are identical in shape and structure and are arranged in a staggered mode on the same horizontal plane, the upper plane of each corrugated frame is flush with the top surface of a bridge body (1), and each corrugated frame is provided with a steel bar rod (4) embedded in the bridge body (1); corrugated frame top has bulge (5) and depressed part (6) that the interval set up, be equipped with parallel plate (8) with bulge (5) parallel arrangement below depressed part (6), parallel plate (8) pass through riser (7) integrated into one piece with depressed part (6) tail end and set up, be equipped with bumper shock absorber (9) on riser (7), bumper shock absorber (9) are including damping spring (13), both ends all are equipped with slide bar (12) about damping spring (13), and both ends are equipped with slip ring (11) and gliding ring (10) respectively about slide bar (12), spout (14) have all been seted up to parallel plate (8) top surface and bulge (5) bottom surface, go up slip ring (11) and gliding ring (10) respectively rather than spout (14) sliding connection that corresponds, and slide bar (12) synchronous and spout (14) sliding connection that corresponds.
2. The bridge shock absorption expansion joint according to claim 1, wherein the front end of the protrusion (5) and the tail end of the recess (6) are both arc-shaped.
3. The bridge damping expansion joint according to claim 1 or 2, characterized in that a tension buffer (16) is arranged at the bottom of the damping structure, the tension buffer (16) comprises a horizontal rod (17) fixed at the bottom of the corrugated frame, an extrusion rod (18) is arranged at the front end of the horizontal rod (17), a balance table (19) which is attached to the front side surface of the extrusion rod (18) and is in sliding connection with the extrusion rod (18) is arranged between two groups of corresponding extrusion rods (18), two symmetrical spring rods (23) are arranged on the top surface of the balance table (19), the spring rods (23) are rotatably connected with the balance table (19) through telescopic rotating rods (24), and the upper ends of the spring rods (23) are rotatably connected with the convex parts (5) of the corrugated frame through the telescopic rotating rods (24).
4. A shock-absorbing expansion joint for bridges according to claim 3, characterized in that the cross section of said balancing platform (19) is in the shape of an isosceles trapezoid with an upward closing-up.
5. A shock-absorbing expansion joint for bridges according to claim 3, wherein a sleeve rod (20) fixedly connected with the balance platform (19) is arranged at the bottom of the balance platform, a spring hook (21) slidably connected with the sleeve rod (20) is inserted at the bottom of the sleeve rod (20), and the lower end of the spring hook (21) is hung on a hook ring (22) positioned at the bottom surface of the joint body.
6. The bridge damping expansion joint according to claim 1 or 2, characterized in that the reinforcing steel bar rod (4) is in sealed butt joint with the back of the corrugated frame to form a cavity shaped like a Chinese character kou, and the cavity is filled with sound attenuation cotton (15).
7. The bridge damping expansion joint of claim 1 or 2, characterized in that a gap is left between the vertical plate (7) and the corresponding vertical surface of the corrugated frame, and the side surface of the parallel plate (8) at the bottom of the vertical plate (7) is jointed with the vertical surface of the corrugated frame and is not fixedly connected with the vertical surface of the corrugated frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418866.7A CN110029575B (en) | 2019-05-20 | 2019-05-20 | Bridge shock attenuation expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418866.7A CN110029575B (en) | 2019-05-20 | 2019-05-20 | Bridge shock attenuation expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110029575A CN110029575A (en) | 2019-07-19 |
| CN110029575B true CN110029575B (en) | 2020-10-27 |
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| CN201910418866.7A Active CN110029575B (en) | 2019-05-20 | 2019-05-20 | Bridge shock attenuation expansion joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110820550B (en) * | 2019-12-04 | 2021-04-30 | 韩敏慧 | Telescoping device of shock-proof buffering formula bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100488624B1 (en) * | 2004-04-13 | 2005-05-11 | 주식회사 동아기술공사 | Expansion and contraction joint having means for absorbing noise/ shock and preventing relaxation of bolt/nut, and constructing method thereof |
| JP3671165B2 (en) * | 2001-12-21 | 2005-07-13 | 利弘 中川 | Underground telescopic device for elevated road and its construction method |
| KR20090006421A (en) * | 2007-07-11 | 2009-01-15 | 서울시립대학교 산학협력단 | Structure for reducing noise |
| KR20150145841A (en) * | 2014-06-19 | 2015-12-31 | 이현숙 | Noise reduction Hybrid Expansion Joint and Structure of Expansion Joint |
| CN106223192A (en) * | 2016-08-29 | 2016-12-14 | 代营伟 | A kind of highway bridge damped noise reduction device |
| CN107687127A (en) * | 2017-09-30 | 2018-02-13 | 青岛江河湖海创新技术研究院有限公司 | A kind of Novel road bridge expansion joint |
| CN208201627U (en) * | 2018-03-06 | 2018-12-07 | 庄永和 | A kind of bridge expanssion joint damping device |
| CN208733460U (en) * | 2018-05-28 | 2019-04-12 | 南京工业职业技术学院 | A kind of road and bridge noise reduction device |
-
2019
- 2019-05-20 CN CN201910418866.7A patent/CN110029575B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3671165B2 (en) * | 2001-12-21 | 2005-07-13 | 利弘 中川 | Underground telescopic device for elevated road and its construction method |
| KR100488624B1 (en) * | 2004-04-13 | 2005-05-11 | 주식회사 동아기술공사 | Expansion and contraction joint having means for absorbing noise/ shock and preventing relaxation of bolt/nut, and constructing method thereof |
| KR20090006421A (en) * | 2007-07-11 | 2009-01-15 | 서울시립대학교 산학협력단 | Structure for reducing noise |
| KR20150145841A (en) * | 2014-06-19 | 2015-12-31 | 이현숙 | Noise reduction Hybrid Expansion Joint and Structure of Expansion Joint |
| CN106223192A (en) * | 2016-08-29 | 2016-12-14 | 代营伟 | A kind of highway bridge damped noise reduction device |
| CN107687127A (en) * | 2017-09-30 | 2018-02-13 | 青岛江河湖海创新技术研究院有限公司 | A kind of Novel road bridge expansion joint |
| CN208201627U (en) * | 2018-03-06 | 2018-12-07 | 庄永和 | A kind of bridge expanssion joint damping device |
| CN208733460U (en) * | 2018-05-28 | 2019-04-12 | 南京工业职业技术学院 | A kind of road and bridge noise reduction device |
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Effective date of registration: 20230921 Address after: Room 301, Unit 1, Building 8, Tianxi Xiangyuan, No. 1469 Hongqi South Street, Taocheng District, Hengshui City, Hebei Province, 053000 Patentee after: Wen Jiahao Patentee after: Yan Maosen Address before: 510800 room 901, 9th floor, Shanghui building, No. 110, East Commercial Avenue, Xinhua Street, Huadu District, Guangzhou, Guangdong Patentee before: GUANGDONG DELI ROAD AND BRIDGE EQUIPMENT TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20231024 Address after: 053000 Zhaoquan economic recycling Park, Taocheng District, Hengshui City, Hebei Province Patentee after: Jujia Energy Group Co.,Ltd. Address before: Room 301, Unit 1, Building 8, Tianxi Xiangyuan, No. 1469 Hongqi South Street, Taocheng District, Hengshui City, Hebei Province, 053000 Patentee before: Wen Jiahao Patentee before: Yan Maosen |