AU2020102290A4 - Novel bridge expansion joint structure - Google Patents
Novel bridge expansion joint structure Download PDFInfo
- Publication number
- AU2020102290A4 AU2020102290A4 AU2020102290A AU2020102290A AU2020102290A4 AU 2020102290 A4 AU2020102290 A4 AU 2020102290A4 AU 2020102290 A AU2020102290 A AU 2020102290A AU 2020102290 A AU2020102290 A AU 2020102290A AU 2020102290 A4 AU2020102290 A4 AU 2020102290A4
- Authority
- AU
- Australia
- Prior art keywords
- section steel
- cover plate
- hooks
- expansion joint
- lower cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
A b s t r a c t
A novel bridge expansionjoint structure is disclosed. An expansion device is
arranged on an expansion joint and comprises a cover plate and section steel,
wherein the section steel includes a left section steel and right section steel which
are arranged on two sides of the expansion joint; the cover plate is detachably
5 connected to the section steel and includes an upper cover plate and a lower cover
plate; a plurality of first hook rings are arranged in the left section steel at equal
intervals, a plurality of second hook rings are arranged in the right section steel at
equal intervals, and a plurality of first hooks corresponding to the first hook rings
and a plurality of second hooks corresponding to the second hook rings are
o arranged on the lower cover plate; the first hooks and the second hooks are slidably
connected to the lower cover plate; and a plurality of press springs are arranged
below the cover plate. The novel bridge expansion joint structure of the utility
model satisfies the requirements of roads for expansion deformation, has a stable
structure and a high bearing capacity, fulfills smooth and comfortable driving, and
5 is easy and convenient to assemble, inspect, and maintain.
0
25
30
35
Description
A b s t r a c t
A novel bridge expansionjoint structure is disclosed. An expansion device is arranged on an expansion joint and comprises a cover plate and section steel, wherein the section steel includes a left section steel and right section steel which are arranged on two sides of the expansion joint; the cover plate is detachably connected to the section steel and includes an upper cover plate and a lower cover plate; a plurality of first hook rings are arranged in the left section steel at equal intervals, a plurality of second hook rings are arranged in the right section steel at equal intervals, and a plurality of first hooks corresponding to the first hook rings and a plurality of second hooks corresponding to the second hook rings are o arranged on the lower cover plate; the first hooks and the second hooks are slidably connected to the lower cover plate; and a plurality of press springs are arranged below the cover plate. The novel bridge expansion joint structure of the utility model satisfies the requirements of roads for expansion deformation, has a stable structure and a high bearing capacity, fulfills smooth and comfortable driving, and is easy and convenient to assemble, inspect, and maintain.
S p e cifica tio n
Novel Bridge Expansion Joint Structure
Technical Field
The utility model belongs to the technical field of bridge engineering, and particularly relates to a novel bridge expansion joint structure.
Description of Related Art The continuous improvement of society and the rapid development of domestic economy have brought unprecedented development of roads that are regarded as the national lifeline. It is necessary to dispose expansion joints at the junction of bridges o as well as the junctions of the bridges and roads at both ends to meet the deformation requirement of bridge floors, and the expansion joints are typically arranged between two beam ends, or between the beam ends and bridge abutments, or at hinge positions of the bridges. As required, the expansion joints should be able to freely expand or contract both in a direction parallel to the axis of the bridges and in a direction perpendicular to the axis of the bridges, and should also be firm and durable and allow vehicles to smoothly travel through without sudden bumps and noises; and moreover, the expansion joints should be easy and convenient to assemble, inspect, maintain, and clean. Once the bridge expansion joints are destroyed, the driving speed, comfort and safety will be severely affected, driving accidents may even be caused. However, existing bridge expansion joints are insecure in structure, which may lead to potential safety hazards in long-term use; in addition, all existing expansion joints are briefly connected by means of steel plates, which are generally directly and fixedly connected to the expansion joints for the sake of convenience, that is, the steel plates are non-removable, so that the expansion joints cannot be routinely inspected or maintained, thus resulting in potential safety hazards; and moreover, due to the fact
S p e cifica tio n
that the steel plates are rigid, the expansion joints connected through the steel plates have the drawback of poor driving comfort and may cause bumps in the driving process. In view of this, it will be of great practical significance to design an expansion joint structure, which has a high bearing capacity and good stability and is able to satisfy the requirements of bridges for expansion deformation. Brief Summary of the Utility Model The technical issue primarily to be settled by the utility model is to provide a novel bridge expansion joint structure, which satisfies the requirements of roads for expansion deformation, has a stable structure and a high bearing capacity, fulfills o smooth and comfortable driving, and is easy and convenient to assemble, inspect, and maintain. One technical solution adopted by the utility model to settle the aforesaid technical issues is as follows: a novel bridge expansion joint structure comprises an expansion joint, wherein an expansion device is arranged on the expansion joint and comprises a cover plate and section steel, the section steel includes left section steel and right section steel which are arranged on two sides of the expansion joint, and the cover plate is arranged over the expansion joint and is flush with a bridge floor; The cover plate is detachably connected to the section steel and includes an upper cover plate and a lower cover plate, and the upper cover plate is arranged over the lower cover plate and is detachably connected to the lower cover plate; a plurality of first hook rings are arranged in the left section steel at equal intervals, a plurality of second hook rings are arranged in the right section steel at equal intervals, and a plurality of first hooks corresponding to the first hook rings and a plurality of second hooks corresponding to the second hook rings are arranged on the lower cover plate; the first hooks and the second hooks are slidably connected to the lower cover plate; a plurality of first long holes allowing the first hooks to stretch therein are formed in the right side wall of the left section steel, and a plurality of second long holes allowing the second hooks to stretch therein are
S p e cifica tio n
formed in the left side wall of the right section steel; and the first long holes are in one-to-one correspondence with the first hook rings, and the second long holes are in one-to-one correspondence with the second hook rings; and A plurality of press springs is arranged below the cover plate. Furthermore, the first hooks and the lower hooks are slidably connected to the lower cover plate specifically as follows: sliding grooves are formed in the lower cover plate, sliding rails are arranged in the sliding grooves, sliding blocks are respectively arranged at the top ends of the first hooks and the top ends of the second hooks, and the sliding blocks are disposed around the sliding rails and are able to slide along the sliding rails. Furthermore, first compression springs are arranged between the first hooks and the sliding grooves, and second compression springs are arranged between the second hooks and the sliding grooves. Furthermore, the left section steel and the right section steel are both rectangular steel, the first hooks are fixedly connected to the left inner wall of the left section steel, and the second hooks are fixedly connected to the right inner wall of the right section steel. Furthermore, the left section steel and the right section steel are welded to steel bars of a bridge. Furthermore, elastic filler materials are filled between the lower cover plate, the left section steel and the right section steel. Furthermore, the elastic filler materials are polyurethane sealants, silicone sealants, or polysulfide sealants. The utility model at least has the following beneficial effects: First of all, the left section steel and the right section steel are assembled on the two sides of the expansion joint and are welded to the steel bars of the bridge; then, the lower cover plate covers the upper end of the expansion joint and is then pressed to synchronously squeeze the first compression springs and the second compression
S p e cifica tio n
springs to push the first hooks and the second hooks towards both sides; then, the lower cover plate is released to drive the first hooks and the second hooks to rise under the effect of the press springs; when the press springs restore to the normal condition, the first compression springs and the second compression springs are released, and at this moment, the first hooks and the second hooks are hooked on the hook rings and can act correspondingly, when the expansion joint deforms, under the effect of the first compression springs and the second compression springs, so that potential safety hazards caused by cracking of the expansion joint are avoided, the structure is stable, and the bearing capacity is high; finally, the upper cover plate is o placed over the lower cover plate; and the novel bridge expansion joint structure of the utility model is convenient to assemble and maintain; Preferably, the press springs are arranged below the cover plate to ensure a high bearing capacity and to absorb shocks properly, so that bumps are avoided in the driving process, and the driving smoothness and comfort are improved; and the cover plate is detachably connected to the left section steel and the right section steel, thus facilitating inspection and maintenance; and More preferably, the elastic filler materials are filled between the left section steel and the right section steel and are polyurethane sealants, silicone sealants or polysulfide sealants, so that the requirement of a bridge body for expansion deformation is satisfied, the life of the bridge expansion joint is prolonged, the maintenance difficulty of the bridge expansion joint is lowered, the construction period is shortened, and the workload of routine maintenance and cleaning is reduced; moreover, the elastic filler materials have a good vibration damping function, so that the driving smoothness on the road surface is effectively improved, and bumps are reduced, thus prolonging the life of the bridge; and furthermore, a worn sealed rubber belt can be directly filled with the elastic filler materials again instead of being replaced with a new one.
S p e cifica tio n
Brief Description of the Several Views of the Drawings FIG. 1 is a structural view of the utility model (not completely assembled); FIG. 2 is an enlarged view of part Al in FIG. 1; FIG. 3 is a structural view in direction A-A in FIG. 1; FIG. 4 is an enlarged view of part A2 in FIG. 3; FIG. 5 is a structural view of left section steel of the utility model; FIG. 6 is a structural view in direction B-B in FIG. 5; FIG. 7 is a structural view in direction C-C in FIG. 5; Reference signs in the figures: 1, expansion device; 2, cover plate; 21, upper cover plate; 22, lower cover plate; 221, first hook; 222, second hook; 23, sliding groove; 231, sliding rail; 232, sliding block; 233, first compression spring; 234, second compression spring; 31, left section steel; 311, first hook ring; 312, first long hole; 32, right section steel; 321, second hook ring; 322, second long hole; 4, press spring.
Detailed Description of the Utility Model The preferred embodiments of the utility model are expounded below in conjunction with the accompanying drawings to ensure that the advantages and characteristics of the utility model can be more easily appreciated by those skilled in the art, and that the protection scope of the utility model can be more clearly defined. Embodiment: a novel bridge expansion joint structure, as shown in FIG. 1 to FIG. 7, comprises an expansion joint, wherein an expansion device 1 is arranged on the expansion joint and comprises a cover plate 2 and section steel, the section steel includes left section steel 31 and right section steel 32 which are arranged on two sides of the expansion joint, and the cover plate is arranged over the expansion joint and is flush with a bridge floor; The cover plate is detachably connected to the section steel and includes an upper cover plate 21 and a lower cover plate 22, wherein the upper cover plate is
S p e cifica tio n
arranged over the lower cover plate and is detachably connected to the lower cover plate, and when assembled, the upper cover plate directly covers the lower cover plate; a plurality of hook rings 311 are arranged in the left section steel at equal intervals, a plurality of second hook rings 321 are arranged in the right section steel at equal intervals, and a plurality of first hooks 221 corresponding to the first hook rings and a plurality of second hooks 222 corresponding to the second hook rings are arranged on the lower cover plate; the first hooks and the second hooks are slidably connected to the lower cover plate; a plurality of first long holes 312 allowing the first hooks to stretch therein are formed in the right side wall of the left section steel, and a plurality of second long holes 322 allowing the second hooks to stretch therein are formed in the left side wall of the right section steel; and the first long holes are in one-to-one correspondence with the first hook rings, and the second longs are in one-to-one correspondence with the second hook rings; and A plurality of press springs 4 are arranged below the cover plate and are disposed below sliding grooves in a one-to-one correspondence manner (the press springs are short springs with a large damping coefficient). The first long holes and the second long holes are all through holes. The left section steel and the right section steel are arranged symmetrically and are of the same structure. The first hooks and the second hooks are slidably connected to the lower cover plate specifically as follows: sliding grooves 23 are formed in the lower cover plate, sliding rails 231 are arranged in the sliding grooves, sliding blocks 232 are respectively arranged at the top ends of the first hooks and the top ends of the second hooks, and the sliding blocks are disposed around the sliding rails and are able to slide along the sliding rails. First compression springs 233 are arranged between the first hooks and the sliding grooves, and second compression springs 234 are arranged between the second hooks and the sliding grooves.
S p e cifica tio n
The left section steel and the right section steel are both rectangular steel, the first hooks are fixedly connected to the left inner wall of the left section steel, and the second hooks are fixedly connected to the right inner wall of the right section steel. The left section steel and the right section steel are welded to steel bars of a bridge. Elastic filler materials (not shown) are injected between the lower cover plate, the left section steel, and the right section steel. The elastic filler materials are polyurethane sealants, silicone sealants, or polysulfide sealants. The operating principle of the utility model is as follows: First of all, the left section steel and the right section steel are assembled on the two sides of the expansion joint and are welded to the steel bars of the bridge; then, the lower cover plate covers the upper end of the expansion joint (as shown in FIG. 1) and is then pressed to synchronously squeeze the first compression springs and the second compression springs to push the first hooks and the second hooks towards both sides; then, the lower cover plate is released to drive the first hooks and the second hooks to rise under the effect of the press springs; when the press springs restore to the normal condition, the first compression springs and the second compression springs are released, and at this moment, the first hooks and the second hooks are hooked on the hook rings and can act correspondingly, when the expansion joint deforms, under the effect of the first compression springs and the second compression springs, so that potential safety hazards caused by cracking of the expansion joint are avoided, the structure is stable, and the bearing capacity is high; and finally, the upper cover plate is placed over the lower cover plate. The above description is only used to explain the embodiments of the utility model and is not intended to limit the patent scope of the utility model. All equivalent structural transformations obtained with reference to the contents of the specification and accompanying drawings of the utility model, or direct or indirect applications to
S p e cifica tio n
other relating technical fields should also fall within the patent protection scope of the utility model.
Claims (7)
1. A novel bridge expansion joint structure, comprising an expansion joint, wherein an expansion device is arranged on the expansion joint and comprises a cover plate and section steel, the section steel includes a left section steel and right section steel which are arranged on two sides of the expansion joint, and the cover plate is arranged over the expansion joint and is flush with a bridge floor; the cover plate is detachably connected to the section steel and includes an upper cover plate and a lower cover plate, and the upper cover plate is arranged over the lower cover plate and is detachably connected to the lower cover plate; a plurality of first hook rings are arranged in the left section steel at equal intervals, a plurality of o second hook rings are correspondingly arranged in the right section steel at equal intervals, and a plurality of first hooks corresponding to the first hook rings and a plurality of second hooks corresponding to the second hook rings are arranged on the lower cover plate; the first hooks and the second hooks are slidably connected to the lower cover plate; a plurality of first long holes allowing the first hooks to stretch therein are formed in a right side wall of the left section steel, and a plurality of second long holes allowing the second hooks to stretch therein are formed in a left side wall of the right section steel; and the first long holes are in one-to-one correspondence with the first hook rings, and the second long holes are in one-to-one correspondence with the second hook rings; and a plurality of press springs is arranged below the cover plate.
2. The novel bridge expansion joint structure according to Claim 1, wherein the first hooks and the lower hooks are slidably connected to the lower cover plate specifically as follows: sliding grooves are formed in the lower cover plate, sliding rails are arranged in the sliding grooves, sliding blocks are respectively arranged at top ends of the first hooks and top ends of the second hooks, and the sliding blocks are disposed around the sliding rails and are able to slide along the sliding rails.
3. The novel bridge expansion joint structure according to Claim 2, wherein first compression springs are arranged between the first hooks and the sliding grooves,
C 1 a i m s
and second compression springs are arranged between the second hooks and the sliding grooves.
4. The novel bridge expansion joint structure according to Claim 1, wherein the left section steel and the right section steel are both rectangular steel, the first hooks are fixedly connected to a left inner wall of the left section steel, and the second hooks are fixedly connected to a right inner wall of the right section steel.
5. The novel bridge expansion joint structure according to Claim 1, wherein the left section steel and the right section steel are welded to steel bars of a bridge.
6. The novel bridge expansion joint structure according to Claim 1, wherein o elastic filler materials are filled between the lower cover plate, the left section steel and the right section steel.
7. The novel bridge expansion joint structure according to Claim 6, wherein the elastic filler materials are polyurethane sealants, silicone sealants, or polysulfide sealants.
D r a w i n g s A t t a c h e d t o t h e S p e c i f i c a t i o n May 2020 2020102290
FIG. 1
FIG. 2
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D r a w i n g s A t t a c h e d t o t h e S p e c i f i c a t i o n May 2020 2020102290
FIG. 3
FIG. 4
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D r a w i n g s A t t a c h e d t o t h e S p e c i f i c a t i o n May 2020 2020102290
FIG. 5
FIG. 6
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D r a w i n g s A t t a c h e d t o t h e S p e c i f i c a t i o n May 2020 2020102290
FIG. 7
4/4
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020623574.5U CN212742182U (en) | 2020-04-23 | 2020-04-23 | Novel bridge expansion joint structure |
| CN202020623574.5 | 2020-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020102290A4 true AU2020102290A4 (en) | 2020-10-29 |
Family
ID=72926654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020102290A Ceased AU2020102290A4 (en) | 2020-04-23 | 2020-05-25 | Novel bridge expansion joint structure |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN212742182U (en) |
| AU (1) | AU2020102290A4 (en) |
| WO (1) | WO2021212590A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032761A (en) * | 2021-11-29 | 2022-02-11 | 邝石华 | Bridge expansion joint filling equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341456B (en) * | 2022-08-29 | 2023-05-12 | 黑龙江鑫交研桥梁科技开发有限公司 | Polyurethane composite bridge expansion joint structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2848519B2 (en) * | 1994-07-29 | 1999-01-20 | 株式会社エービーシー商会 | Expansion joint |
| US9279248B2 (en) * | 2014-03-11 | 2016-03-08 | Watson Bowman Acme Corp. | Cover panel seismic expansion joint |
| CN203977285U (en) * | 2014-07-31 | 2014-12-03 | 吴天舟 | A kind of bridge dam |
| CN105839531B (en) * | 2016-04-15 | 2017-12-22 | 深圳市市政工程总公司 | A kind of covering device for expansion joint for municipal bridge |
| CN108149564B (en) * | 2017-12-27 | 2019-07-19 | 湖南鸿路建设工程有限公司 | A kind of bridge expansion joint structure |
-
2020
- 2020-04-23 CN CN202020623574.5U patent/CN212742182U/en not_active Expired - Fee Related
- 2020-05-25 AU AU2020102290A patent/AU2020102290A4/en not_active Ceased
- 2020-05-25 WO PCT/CN2020/092051 patent/WO2021212590A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114032761A (en) * | 2021-11-29 | 2022-02-11 | 邝石华 | Bridge expansion joint filling equipment |
| CN114032761B (en) * | 2021-11-29 | 2023-12-22 | 朱权 | Bridge expansion joint filling equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN212742182U (en) | 2021-03-19 |
| WO2021212590A1 (en) | 2021-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |