CN105839532A - Bridge expansion joint - Google Patents
Bridge expansion joint Download PDFInfo
- Publication number
- CN105839532A CN105839532A CN201610367701.8A CN201610367701A CN105839532A CN 105839532 A CN105839532 A CN 105839532A CN 201610367701 A CN201610367701 A CN 201610367701A CN 105839532 A CN105839532 A CN 105839532A
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- China
- Prior art keywords
- beam body
- bar
- air bag
- embedded
- gap
- 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.)
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Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge expansion joint which is arranged in a gap between adjacent bridge bodies. The bridge expansion joint comprises two irregular-shaped steel edge beams, embedded bars and an air bag; the two irregular-shaped steel edge beams are symmetrically fixed to the two opposite sides of the gap and are both distributed in the width direction of the bridge bodies, the embedded bars are embedded into the bridge bodies, the irregular-shaped steel edge beam and the embedded bar which are arranged on the same side of the gap are fixedly connected with each other, the air bag is distributed in the width direction of the bridge bodies, the two sides of the air bag are respectively and detachably connected with the two irregular-shaped steel edge beams, and the air bag is inflated to be attached to the two lateral walls of the gap after being fixedly connected with the two irregular-shaped steel edge beams. According to the bridge expansion joint, the air bag is attached to the two lateral walls of the gap after being inflated to replace rubber strips in the prior art to achieve a sealing effect. Furthermore, the two sides of the air are respectively and detachably connected with the two irregular-shaped steel edge beams, the air bag can be conveniently replaced through inflation and deflation, and sundries in the gap can also be conveniently removed by inflating and deflating the air bag.
Description
Technical field
The present invention relates to bridge technology field, particularly relate to a kind of bridge expanssion joint.
Background technology
Bridge expanssion joint is the requirement in order to meet bridge floor deformation, the gap formed between two adjacent beam body
The device of middle setting.Beam body can be girder section, it is also possible to for the abutment being connected with girder.Bridge expanssion joint
Require all can freely stretch in the length, width both direction of bridge, solid and reliable, when vehicle runs over
Should smooth out, without kick and noise, to prevent rainwater and rubbish earth from penetrating into and block.Visible, bridge stretches
The performances such as stretch in beam body end by seam, waterproof and draining play an important role, its quality and performance general
Directly affect the durability of whole bridge.
Fig. 1 shows a kind of bridge expanssion joint maurer expansion seal commonly used in the prior art.Fig. 1 show
Tangent plane schematic diagram along bridge length direction.Maurer expansion seal is really the combination of reinforcing bar rubber, comprising:
Embedded bar 31, connection reinforcing bar 32, deformed steel side bar 2 and rubber strip 1.See Fig. 1, every section of girder
Being attached with pave-load layer 33 and rear pouring concrete layer 34 on 35 the most side by side, deformed steel side bar 2 is individually fixed in two sections
The end that beam body 3 is relative, and the end face flush of its top and beam body 3.Embedded bar 31 and connection
Reinforcing bar 32 is all arranged in rear pouring concrete layer 34.Wherein, deformed steel side bar 2 and embedded bar 31 and be connected
Reinforcing bar 32 welds, and this is just ready for when dispatching from the factory.Maurer expansion seal between two sections of adjacent beam body 3,
Will embed in the gap between these two sections of beam body 3 by rubber strip 1.It can be seen that the two ends of rubber strip 1
Respectively with deformed steel side bar 2 tabling on girder 35, the under-filled of rubber strip 1 has polystyrene foam
The packed layer 4 of plastics.
This kind of maurer expansion seal in use, if having rubble or other foreign material to enter, as failed to disappear in time
Remove, easily cause rubber strip and connect not tight, cause water or other foreign material to lodge in for a long time in expansion joint,
Rear generation frost heave or other horizontal thrusts, ultimately result in whole expansion joint and be destroyed.
Summary of the invention
In view of this, the present invention proposes a kind of bridge expanssion joint, to overcome technological deficiency present in prior art.
For reaching above-mentioned purpose, the technical scheme of the embodiment of the present invention is achieved in that
The embodiment of the invention discloses a kind of bridge expanssion joint, be arranged in the gap between adjacent beam body, bag
Include:
Two deformed steel side bars, these two described deformed steel side bars are fixed on the opposite sides in this gap symmetrically,
And all along the width layout of beam body；
Embedded bar, described embedded bar is embedded in described beam body, and is positioned at side described in described gap
Deformed steel side bar is fixing with the described embedded bar being positioned at homonymy to be connected；
Air bag, described air bag along beam body width arrange, and the both sides of described air bag respectively with described in two
Deformed steel side bar removably connects, and is inflated to the two side with gap after fixing connection and fits.
Alternatively, the opposite face of two deformed steel side bars all offers groove；
The both sides of described air bag are provided with projection, and the described projection of every side is fitting to connection with a described groove.
Alternatively, described air bag is multiple, and the plurality of air bag is along the width arrangement of described beam body.
Alternatively, the inflation inlet of described air bag is arranged at the end along its length of described air bag；In inflation
After, the top of described air bag and the upper surface flush of described beam body.
Alternatively, described embedded bar is multiple, and described embedded bar is all arranged along the length direction of described beam body,
And the described embedded bar being embedded in each described beam body is along the width arrangement of beam body.
Alternatively, described deformed steel side bar with described embedded bar for welding.
Alternatively, the upper surface of described deformed steel side bar and the upper surface flush of described beam body.
Alternatively, being also embedded with connection reinforcing bar in described beam body, described connection reinforcing bar includes:
Multiple horizontal bars, described horizontal bar is arranged along the width of described beam body, and is embedded in each described beam
Internal described horizontal bar is all connected with the multiple embedded bars in this beam body；
Multiple longitudinal ribs, described longitudinal rib is all arranged along the length direction of described beam body, and is embedded in each described
Described longitudinal rib in beam body arranges along the width of this beam body, muscle and a described pre-buried steel longitudinally in each
Muscle is correspondingly connected.
Alternatively, horizontal bar with embedded bar for welding, longitudinal rib with embedded bar for welding.
The bridge expanssion joint of the present invention, by air bag, two side with gap fits after inflation, existing to substitute
Have the rubber strip in technology to play the effect of sealing, and the both sides of air bag respectively with two deformed steel side bars
Removably connect, air bag pass through inflation/deflation, the foreign material that can be replaced easily and eliminate in gap,
Thus overcome the technological deficiency existing for rubber strip of the prior art.
Further, further, the precompression that bridge structure is produced by air bag can improve the carrying energy of bridge structure
Power and durability are notable to current widely used bridge floor continuous structure effect.
Accompanying drawing explanation
Fig. 1 show the structural representation of a kind of bridge expanssion joint of the prior art；
Fig. 2 show the structural representation of a bridge expanssion joint of the embodiment of the present invention；
Fig. 3 show the airbag structure schematic diagram of a bridge expanssion joint of the embodiment of the present invention.
Reference
1 rubber strip；2,21 deformed steel side bar；3,30 beam body；4 packed layers；
31,301 embedded bar；32,303 connect reinforcing bar；33,302 pave-load layer；
34,304 rear pouring concrete layer；35,305 girder；40 gaps；
11 air bags；111 inflation inlets；112 is protruding；
211 grooves；3031 horizontal bars；3032 longitudinal ribs.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below by way of concrete real
Executing example and see accompanying drawing, the present invention is described in detail.
It is not easy to remove, cause rubber strip to connect to solve the foreign material of bridge expanssion joint of the prior art
Tight and not destroyed technological deficiency, embodiments provides a kind of bridge expanssion joint, to replace
The rubber strip structure of bridge expanssion joint of the prior art, such that it is able to be replaced easily and
Eliminate the foreign material in gap.
To achieve these goals, the bridge expanssion joint of the embodiment of the present invention is as in figure 2 it is shown, this bridge is stretched
Contracting sews cloth in the gap 40 being placed between adjacent beam body 30, and its structure includes deformed steel side bar 21, pre-
Bury reinforcing bar 301, connect reinforcing bar 303 and air bag 11.
Beam body 30 adjacent in the present embodiment, both can be the combination of girder 305 sections and girder 305 sections,
It can also be the combination of girder 305 sections and abutment section.See Fig. 2, Fig. 2 be two sections of girders 305 sections it
Between the structure of bridge expanssion joint.The above of every section of girder 305 is equipped with pave-load layer 302 and rear pouring concrete layer
304。
Wherein:
The deformed steel side bar 21 being positioned at each gap 40 is two, and these two deformed steel side bars 21 are symmetrical
Ground is fixed on the opposite sides in this gap 40, and all along the width layout of beam body 30.Further, different
The upper surface of shaped steel side bar 21 and the upper surface flush of beam body 30, to ensure that bridge floor smoothes out.
Embedded bar 301 is embedded in beam body 30, and is positioned at the described abnormal shape of the side in described gap 40
Steel side bar 21 is fixing with the embedded bar 301 being positioned at homonymy to be connected.
Alternatively, deformed steel side bar 21 has multiple with the connected mode of embedded bar 301, such as riveting, weldering
Connecing, the present embodiment preferred deformed steel side bar 21, thus is connected firmly for welding with embedded bar 301.
Further, deformed steel side bar 21 welded complete with embedded bar 301 before being installed in bridge the most in advance, and
It is installed on the most in the lump in bridge.
Alternatively, in order to ensure being connected firmly of deformed steel side bar 21 and embedded bar 301, the present embodiment
In embedded bar 301 is set for multiple, the plurality of embedded bar 301 is all along the length direction cloth of beam body 30
Put.The plurality of embedded bar 301 is embedded in two adjacent beam body 30 symmetrically, and is embedded in each
Embedded bar 301 in beam body 30 arranges along the width of beam body 30.
It is solidly connected to add further, is also embedded with connection reinforcing bar 303 in beam body 30, connects reinforcing bar 303
Multiple horizontal bars 3031 and multiple longitudinal rib 3032 including interlaced arrangement.Multiple horizontal bar 3031 is along beam body
The width of 30 is arranged, and the horizontal bar 3031 being embedded in each beam body 30 is many with in this beam body 30
Individual embedded bar 301 is all connected with；Multiple longitudinal ribs 3032 are all arranged along the length direction of beam body 30, and bury
The longitudinal rib 3032 being located in each beam body 30 arranges along the width of this beam body 30, muscle 3032 longitudinally in each
Correspondingly connected with an embedded bar 301.By embedded bar 301, longitudinal rib 3032 and horizontal bar
3031 form framework of steel reinforcement, thus firmly connect.
Alternatively, horizontal bar 3031 and embedded bar 301, longitudinal rib 3032 and the connection of embedded bar 301
Mode has multiple, such as riveting, welding etc., the present embodiment preferably laterally muscle 3031 and embedded bar 301, vertical
It is with embedded bar 301 to muscle 3032 and welds, thus be connected firmly.Ibid, this be welded on horizontal bar 3031,
Longitudinal rib 3032 welds complete with embedded bar 301 before being installed in bridge the most in advance, and the most in the lump
It is installed in bridge.
The structure of air bag 11 sees Fig. 3, and it is arranged along the width of beam body 30, and the two of air bag 11
Side removably connects with two described deformed steel side bars 21 respectively, and is inflated to and gap after fixing connection
The two side of 40 fits.
Specifically, air bag 11 has multiple with the connected mode of deformed steel side bar 21, such as clamping, is spirally connected,
In the present embodiment, arrange and on the opposite face of two deformed steel side bars 21, all offer groove 211, air bag 11
Both sides be provided with protruding 112, described protruding the 112 of every side are fitting to connection with a described groove 211.
Alternatively, in the present embodiment, if the width of beam body 30 is relatively big, air bag 11 can be set
For multiple, the plurality of air bag 11 is along the width spread configuration of beam body 30.
The inflation inlet 111 of air bag 11 is arranged at the end along its length of air bag 11, after inflation, gas
The top of capsule 11 and the upper surface flush of described beam body 30, smooth out to ensure to drive a vehicle and prevent accommodating sundries
Enter.The bottom transverse cross section of air bag 11 is ellipticity, it is easy to shrink.By air bag 11 after inflation with seam
The two side of gap 40 fits, and plays the effect of sealing to substitute rubber strip of the prior art.Further,
Just can take off after air bag 11 is exitted, easy accessibility.
It should be noted that be state when air bag 11 uses shown in Fig. 2, its top is near beam
One sidepiece of body 30 upper surface, bottom is the sidepiece near beam body 30 lower surface.
During installing, step is as follows:
First on girder 305, lay pave-load layer 302, and reserve mounting groove in the both sides of bridge expanssion joint,
To install embedded bar 301, to connect reinforcing bar 303 and deformed steel side bar 21.As it has been described above, pre-buried steel
Muscle 301, connection reinforcing bar 303 and deformed steel side bar 21 are the most welded complete when dispatching from the factory.
Then, after embedded bar 301 being installed, connects reinforcing bar 303 and deformed steel side bar 21,
Pour rear pouring concrete in mounting groove position again and form rear pouring concrete layer 304, thus by embedded bar 301 and
Connect reinforcing bar 303 and be embedded in rear pouring concrete layer 304.
Finally installing air bag 11.By the projection 112 of air bag 11 both sides of unaerated along the width of beam body 30
Direction sliding gomphosis respectively, in groove 211, inflates then to air bag 11, until air bag 11 and gap
The two side of 40 fits.Wherein, air bag 11 will according to collapsing length, the controlling element such as temperature is installed,
Calculate and air pressure is installed, and to air bag 11 inflating pressure to design load.
The bridge expanssion joint of the present invention, by air bag 11, two side with gap 40 fits after inflation, with
Substitute rubber strip of the prior art and play the effect of sealing, and the both sides of air bag 11 are different with two respectively
Shaped steel side bar 21 removably connects, and air bag 11, by inflation/deflation, can be replaced easily and disappear
Except the foreign material in gap 40, thus overcome the technological deficiency existing for rubber strip of the prior art.
Further, further, the precompression that bridge structure is produced by air bag 11 can improve holding of bridge structure
Loading capability and durability are notable to current widely used bridge floor continuous structure effect.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Within the spirit of invention and principle, any modification, equivalent substitution and improvement etc. done, should be included in
Within the scope of protection of the invention.
Claims (9)
1. a bridge expanssion joint, is arranged in the gap (40) between adjacent beam body (30) Nei, and it is special
Levy and be, including:
Two deformed steel side bars (21), these two described deformed steel side bars (21) are fixed on this gap symmetrically
(40) opposite sides, and all along the width layout of beam body (30)；
Embedded bar (301), described embedded bar (301) is embedded in described beam body (30), and is positioned at
The described deformed steel side bar (21) of the side in described gap (40) and the described embedded bar (301) being positioned at homonymy
Fixing connection；
Air bag (11), described air bag (11) is arranged along the width of beam body (30), and described air bag (11)
Both sides removably connect with two described deformed steel side bars (21) respectively, and be inflated to after fixing connection
Fit with the two side of gap (40).
Bridge expanssion joint the most according to claim 1, it is characterised in that two deformed steel side bars (21)
Opposite face on all offer groove (211)；
The both sides of described air bag (11) are provided with projection (112), the described projection (112) of every side and an institute
State groove (211) to be fitting to connection.
Bridge expanssion joint the most according to claim 1, it is characterised in that described air bag (11) is many
Individual, and the plurality of air bag (11) is along the width arrangement of described beam body (30).
Bridge expanssion joint the most according to claim 1, it is characterised in that filling of described air bag (11)
Gas port (111) is arranged at the end along its length of described air bag (11)；
After inflation, the top of described air bag (11) and the upper surface flush of described beam body (30).
Bridge expanssion joint the most according to claim 1, it is characterised in that described embedded bar (301)
For multiple, described embedded bar (301) is all arranged along the length direction of described beam body (30), and is embedded in
Described embedded bar (301) in each described beam body (30) arranges along the width of beam body (30).
Bridge expanssion joint the most according to claim 1 or 5, it is characterised in that described deformed steel side bar
(21) with described embedded bar (301) for welding.
Bridge expanssion joint the most according to claim 1, it is characterised in that described deformed steel side bar (21)
The upper surface flush of upper surface and described beam body (30).
Bridge expanssion joint the most according to claim 5, it is characterised in that in described beam body (30) also
Being embedded with connection reinforcing bar (303), described connection reinforcing bar (303) including:
Multiple horizontal bars (3031), described horizontal bar (3031) is along the width cloth of described beam body (30)
Put, and the described horizontal bar (3031) being embedded in each described beam body (30) is interior with this beam body (30)
Multiple embedded bars (301) be all connected with；
Multiple longitudinal ribs (3032), described longitudinal rib (3032) is all along the length direction of described beam body (30)
Arrange, and the described longitudinal rib (3032) being embedded in each described beam body (30) is along this beam body (30)
Width arrangement, muscle (3032) is correspondingly connected with a described embedded bar (301) longitudinally in each.
Bridge expanssion joint the most according to claim 8, it is characterised in that described horizontal bar (3031)
With described embedded bar (301) for welding, described longitudinal rib (3032) and described embedded bar (301)
For welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367701.8A CN105839532B (en) | 2016-05-30 | 2016-05-30 | A kind of bridge expanssion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367701.8A CN105839532B (en) | 2016-05-30 | 2016-05-30 | A kind of bridge expanssion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105839532A true CN105839532A (en) | 2016-08-10 |
| CN105839532B CN105839532B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610367701.8A Active CN105839532B (en) | 2016-05-30 | 2016-05-30 | A kind of bridge expanssion joint |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313464A (en) * | 2017-07-10 | 2017-11-03 | 江苏鼎达建筑新技术有限公司 | A kind of movement joint is combined leak stopping sealing system and its construction method |
| CN107313465A (en) * | 2017-07-10 | 2017-11-03 | 江苏鼎达建筑新技术有限公司 | A kind of movement joint sealing structure and its construction method |
| CN108035208A (en) * | 2017-12-18 | 2018-05-15 | 中冶南方城市建设工程技术有限公司 | Cement concrete pavement expansion joint (E.J.) construction and its construction method based on air bag with high intensity |
| CN109057058A (en) * | 2018-09-01 | 2018-12-21 | 华迪钢业集团有限公司 | The U-shaped body of stainless steel and its application method for expansion joint |
| CN109555314A (en) * | 2019-01-17 | 2019-04-02 | 山东省交通科学研究院 | A kind of reusable expansion joint construction formwork and its installation, method for dismounting |
| CN109972504A (en) * | 2019-03-21 | 2019-07-05 | 唐峰 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
| CN110552286A (en) * | 2019-09-26 | 2019-12-10 | 谷丹 | Bridge expansion joint structure and preparation method thereof |
| CN111535153A (en) * | 2020-05-01 | 2020-08-14 | 鲍轶楠 | Bridge expansion joint protection mechanism |
| CN113136796A (en) * | 2021-04-30 | 2021-07-20 | 重庆交通大学 | Reset type bridge expansion joint device |
| CN114369997A (en) * | 2021-11-23 | 2022-04-19 | 洛阳双瑞特种装备有限公司 | Prestressed elastomer expansion joint and forming method |
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| JP2015010397A (en) * | 2013-06-28 | 2015-01-19 | ニッタ株式会社 | Cut-off material for joint gap |
| CN203603045U (en) * | 2013-10-25 | 2014-05-21 | 上海兰德公路工程咨询设计有限公司 | Novel reinforcing rubber strip bridge expansion joint structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313464A (en) * | 2017-07-10 | 2017-11-03 | 江苏鼎达建筑新技术有限公司 | A kind of movement joint is combined leak stopping sealing system and its construction method |
| CN107313465A (en) * | 2017-07-10 | 2017-11-03 | 江苏鼎达建筑新技术有限公司 | A kind of movement joint sealing structure and its construction method |
| CN108035208A (en) * | 2017-12-18 | 2018-05-15 | 中冶南方城市建设工程技术有限公司 | Cement concrete pavement expansion joint (E.J.) construction and its construction method based on air bag with high intensity |
| CN109057058A (en) * | 2018-09-01 | 2018-12-21 | 华迪钢业集团有限公司 | The U-shaped body of stainless steel and its application method for expansion joint |
| CN109057058B (en) * | 2018-09-01 | 2020-01-24 | 华迪钢业集团有限公司 | Stainless steel U-shaped body for expansion joint and use method thereof |
| CN109555314A (en) * | 2019-01-17 | 2019-04-02 | 山东省交通科学研究院 | A kind of reusable expansion joint construction formwork and its installation, method for dismounting |
| CN109555314B (en) * | 2019-01-17 | 2023-08-22 | 山东省交通科学研究院 | Reusable expansion joint construction template and mounting and dismounting methods thereof |
| CN109972504A (en) * | 2019-03-21 | 2019-07-05 | 唐峰 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
| CN110552286A (en) * | 2019-09-26 | 2019-12-10 | 谷丹 | Bridge expansion joint structure and preparation method thereof |
| CN111535153A (en) * | 2020-05-01 | 2020-08-14 | 鲍轶楠 | Bridge expansion joint protection mechanism |
| CN113136796A (en) * | 2021-04-30 | 2021-07-20 | 重庆交通大学 | Reset type bridge expansion joint device |
| CN114369997A (en) * | 2021-11-23 | 2022-04-19 | 洛阳双瑞特种装备有限公司 | Prestressed elastomer expansion joint and forming method |
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| Publication number | Publication date |
|---|---|
| CN105839532B (en) | 2017-06-16 |
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