CN109972504A - A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body - Google Patents
A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body Download PDFInfo
- Publication number
- CN109972504A CN109972504A CN201910215597.4A CN201910215597A CN109972504A CN 109972504 A CN109972504 A CN 109972504A CN 201910215597 A CN201910215597 A CN 201910215597A CN 109972504 A CN109972504 A CN 109972504A
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- Prior art keywords
- fashioned iron
- anchor slab
- elastic telescopic
- embedded bar
- telescopic body
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention proposes a kind of seamless expansion-contraction devices and its construction method with elastic telescopic body, the seamless expansion-contraction devices include elastic telescopic body, isolation film, cystosepiment, fashioned iron, anchor slab and embedded bar, the embedded bar, anchor slab quantity is multiple, it is arranged symmetrically along bridge expanssion joint center line, the lower part of embedded bar is embedded in bridge end or abutment parados, top is set in preformed groove, anchor slab is connected with above embedded bar, fashioned iron is arranged symmetrically along bridge expanssion joint center line, fashioned iron side-lower is welded with anchor slab, anchor slab is along fashioned iron length direction equidistant arrangement, cystosepiment is installed on above the bracket of fashioned iron, to support top elastic telescopic body weight, isolation film is set to the top of cystosepiment, elastic telescopic body is set in the flexible sealing that a pair of of fashioned iron gap is formed above isolation film.The present invention has rational design, under the conditions of meeting bridge structure dilatation, increases driving comfort level and reduces the maintenance of telescopic device, have good engineering application value.
Description
[technical field]
The present invention relates to the technical fields of science of bridge building expansion joint design and construction, especially a kind of to have elastic telescopic body
Seamless expansion-contraction devices and its construction method.
[background technique]
With the fast development of China's economy, traffic volume of highway is sharply increased, the travel speed and vehicle of vehicle on highway
Load-carrying constantly increase, requirement of the people to road-ability is also higher and higher, therefore payes attention to not in previous Bridge Design, construction
The problem of enough related expansion gap devices, since the problems such as breakage at expansion joint, notch blocking, stuck and expansion joint are broken causes
Traffic safety accident, prestress steel sinew anchor head corrosion and support water enchroachment (invasion) evil the problems such as, become more and more prominent.
The expansion gap device of highway bridge directly bears the repeated stock effect of wheel load, and is chronically exposed to atmosphere
In, use environment is severe, is that bridge structure is most subject to the position destroyed and be difficult to repair.Bridge expansion joint installation is being set
There are tiny flaw or deficiencies on meter, construction, will cause the destruction of early stage, and bridge passenger is made to generate sense of discomfort, sometimes also
It influences whether bridge structure itself, therefore proposes a kind of seamless expansion-contraction devices and its construction method with elastic telescopic body.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, propose a kind of seamless flexible with elastic telescopic body
Device and its construction method increase driving comfort level and reduce flexible dress under the conditions of meeting bridge structure dilatation
The maintenance set has good engineering application value.
To achieve the above object, the invention proposes a kind of seamless expansion-contraction devices with elastic telescopic body, including elasticity
Extrusome, isolation film, cystosepiment, fashioned iron, anchor slab and embedded bar, the embedded bar, anchor slab quantity be it is multiple, stretched along bridge
Contracting seam center line is arranged symmetrically, and the lower part of the embedded bar is embedded in bridge end or abutment parados, top and is set to reserved
In slot, anchor slab is connected with above the embedded bar, the fashioned iron is symmetrical set along bridge expanssion joint center line, the type
Steel side-lower is welded with anchor slab, and along fashioned iron length direction equidistant arrangement, the cystosepiment is installed on above the bracket of fashioned iron anchor slab, uses
To support top elastic telescopic body weight, the isolation film is set to the top of cystosepiment, elastic telescopic body and lower section is isolated
Cohering between cystosepiment, the elastic telescopic body are set in the flexible sealing that a pair of of fashioned iron gap is formed above isolation film.
Preferably, the embedded bar is closed hoop, the top of the embedded bar and top anchor slab are welded to connect.
Preferably, the anchor slab is square plate, the anchor slab is welded with the embedded bar of the fashioned iron of top, lower section respectively
It connects in succession, the anchor slab is the intermediate Force transmission parts of fashioned iron, embedded bar.
Preferably, the fashioned iron is using expansion joint center line as symmetrically arranged a pair of of the steel member of baseline, the fashioned iron
It is welded to connect with anchor slab close to the side at expansion joint, side wall of the fashioned iron close to expansion joint is outward extended with bracket, the ox
The upper surface of leg is horizontal, and the upper surface of the bracket and the side wall of fashioned iron form stepped groove.
Preferably, the end face of the cystosepiment and fashioned iron contact surface squeeze patch jail.
Preferably, the barrier material is one of metal foil paper, gummed paper and plastic film, elasticity is isolated
Cohering between extrusome and lower section cystosepiment.
Preferably, the top surface of the elastic telescopic body is concave curved surface, the end face of the elastic telescopic body and fashioned iron appearance
Face bonding connection.
Preferably, the elastic telescopic body material is in adhesive, sealant, elaterite and rubber modified asphalt
It is a kind of.
A kind of construction method of the seamless expansion-contraction devices with elastic telescopic body, includes the following steps:
Step 1. buries embedded bar in bridge end or abutment parados: first at the scene operating area according to embedded bar
Specification, be dimensioned to annular closed reinforcing bar, in case subsequent processing uses, later bridge beam body is prefabricated or cast-in-place construction ring
Section when reinforcing bar binds operation, equidistantly buries embedded bar, and root in bridge end or abutment parados along bridge expanssion joint center line
According to every embedded bar depth of burying of expansion joint construction requirement strict control；
Step 2. is welding anchor slab on fashioned iron: after the completion of anchor slab is by design specification, dimensioned, according to anchor slab number in type
Equidistant placement anchor slab on steel length direction later connects anchor slab and fashioned iron using double welded joint；
Step 3. anchor slab and embedded bar are welded to connect: being welded with after the completion of the fashioned iron processing and fabricating of anchor slab, so that it may carry out down
The welded connecting of one step anchor slab and embedded bar lives fashioned iron in supported underneath using movable supporting frame first, later at expansion joint
Adjusting type steel position on length direction so that anchor slab be close to embedded bar, later width direction finely tune fashioned iron so that anchor slab with
Embedded bar corresponding position meets construction technical requirement, and then anchor slab and embedded bar are connected using double welded joint；
Step 4. pours reserved notch: fashioned iron and the anchor slab of lower section, anchor slab and the completion of embedded bar weld job and weld seam
Quality reaches after welding technique requires, in next step can in preformed groove casting cement concrete or fiber concrete, and to coagulation
Native vibration compacting；
Cystosepiment, isolation film is arranged in step 5.: according to construction technical requirement, cutting out the foam of respective thickness and width
Plate, and it is segmented, it is set to above fashioned iron bracket later, so that its end face and fashioned iron contact surface is squeezed patch jail, complete bubble
After the installation of foam plate, subsequent processing will be completely overlying on cystosepiment with isolation film, and blend compounds water glues isolation film and cystosepiment
Knot；
Step 6. pours elastic telescopic body: prepared elastic telescopic body mixture is poured into a pair of of fashioned iron above isolation film
In the flexible sealing that gap is formed, and to its abundant vibration compacting, its top surface is modified later, is arranged to concave curved surface.
Beneficial effects of the present invention: the present invention passes through elastic telescopic body, isolation film, cystosepiment, fashioned iron, anchor slab and pre-buried steel
The cooperation of muscle etc. can form continuous entirety with deck paving, overcome the bridge floor out-of-flatness easily occurred at bridge expanssion joint,
Situations such as faulting of slab ends, irregular twisted and expansion joint, steady comfort of driving a vehicle are good；Can adapt to a variety of addendum modifications, design is reasonable,
Under the conditions of meeting bridge structure dilatation, increases driving comfort level and reduce the maintenance of telescopic device, have very
Good engineering application value.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is the construction mounting structure schematic diagram of the seamless expansion-contraction devices with elastic telescopic body of the invention；
Fig. 2 is the schematic diagram of the embedded bar of the seamless expansion-contraction devices with elastic telescopic body of the invention；
Fig. 3 is the schematic diagram of the fashioned iron of the seamless expansion-contraction devices with elastic telescopic body of the invention.
[specific embodiment]
Refering to fig. 1, a kind of seamless expansion-contraction devices with elastic telescopic body of the present invention, including elastic telescopic body 1, isolation film
2, cystosepiment 3, fashioned iron 4, anchor slab 5 and embedded bar 6, the embedded bar 6,5 quantity of anchor slab be it is multiple, along bridge expanssion joint
Heart line is arranged symmetrically, and the lower part of the embedded bar 6 is embedded in bridge end or abutment parados, top and is set in preformed groove,
The top of the embedded bar 6 is connected with anchor slab 5, and the fashioned iron 4 is symmetrical set along bridge expanssion joint center line, the fashioned iron
4 side-lowers are welded with anchor slab 5, and anchor slab 5 is installed on the bracket of fashioned iron 4 along 4 length direction equidistant arrangement of fashioned iron, the cystosepiment 3
Side, to support 1 weight of top elastic telescopic body, the isolation film 2 is set to the top of cystosepiment 3, elastic telescopic is isolated
Cohering between body 1 and lower section cystosepiment 3, the elastic telescopic body 1 are set to stretching for 2 a pair of of 4 gap of the fashioned iron formation in top of isolation film
In contracting sealing.
Referring to Fig.2, embedded bar 6 is set as closed hoop, the top of the embedded bar 6 and the welding of top anchor slab 5 connect
It connects.The anchor slab 5 is square plate, and the anchor slab 5 is welded to connect with the embedded bar 6 of the fashioned iron 4 of top, lower section respectively, institute
State the intermediate Force transmission parts that anchor slab 5 is fashioned iron 4, embedded bar 6.
Refering to Fig. 2 and Fig. 3, fashioned iron 4 is using expansion joint center line as symmetrically arranged a pair of of the steel member of baseline, the fashioned iron
4 are welded to connect with anchor slab 5 close to the side at expansion joint, and side wall of the fashioned iron 4 close to expansion joint is outward extended with bracket, described
The upper surface of bracket is horizontal, and the upper surface of the bracket and the side wall of fashioned iron 4 form stepped groove.The end of the cystosepiment 3
Face and 4 contact surface of fashioned iron squeeze patch jail.
Further, the cross sectional shape of the fashioned iron 4 is approximately inverted L shape, the top of the fashioned iron 4 be equipped with outward bending in
Horizontal supporting plate in preformed groove, the lower part of the fashioned iron 4, which is equipped with, is welded in anchor slab 5 close to the vertical supporting plate of the side at expansion joint,
The bracket is located at the side wall of vertical supporting plate.
2 material of isolation film is one of metal foil paper, gummed paper and plastic film.The top of the elastic telescopic body 1
Face is concave curved surface, the end face of the elastic telescopic body 1 and 4 outer surface bonding connection of fashioned iron.1 material of elastic telescopic body is glue
One of glutinous agent, sealant, elaterite and rubber modified asphalt.
A kind of construction method of the seamless expansion-contraction devices with elastic telescopic body, includes the following steps:
Step 1. buries embedded bar 6 in bridge end or abutment parados: first at the scene operating area according to pre-buried steel
The specification of muscle 6 is dimensioned to annular closed reinforcing bar, prefabricated or cast-in-place apply in bridge beam body later in case subsequent processing uses
Work link when reinforcing bar binds operation, equidistantly buries embedded bar in bridge end or abutment parados along bridge expanssion joint center line
6, and according to 6 depth of burying of expansion joint every embedded bar of construction requirement strict control；
Step 2. is in welding anchor slab 5 on fashioned iron 4: after the completion of anchor slab 5 presses design specification, dimensioned, according to 5 numbers of anchor slab
The equidistant placement anchor slab 5 on 4 length direction of fashioned iron later connects anchor slab 5 and fashioned iron 4 using double welded joint；
Step 3. anchor slab 5 and embedded bar 6 are welded to connect: being welded with after the completion of 4 processing and fabricating of fashioned iron of anchor slab 5, so that it may into
The welded connecting of row next step anchor slab 5 and embedded bar 6 lives fashioned iron 4, Zhi Hou in supported underneath using movable supporting frame first
Fashioned iron 4 is finely tuned in width direction later so that anchor slab 5 is close to embedded bar 6 in 4 position of adjusting type steel on the length direction of expansion joint,
So that anchor slab 5 and 6 corresponding position of embedded bar meet construction technical requirement, then using double welded joint anchor slab 5 and pre-buried steel
Muscle 6 connects；
Step 4. pours reserved notch: fashioned iron 4 and the anchor slab 5 of lower section, anchor slab 5 and 6 weld job of embedded bar complete and
Weldquality reaches after welding technique requires, in next step can in preformed groove casting cement concrete or fiber concrete, and it is right
Concrete vibrating is closely knit；
Cystosepiment 3, isolation film 2 is arranged in step 5.: according to construction technical requirement, cutting out the foam of respective thickness and width
Plate 3, and it is segmented, it is set to above 4 bracket of fashioned iron later, so that its end face and 4 contact surface of fashioned iron is squeezed patch jail, complete
After cystosepiment 3 is installed, subsequent processing will be completely overlying on cystosepiment 3 with isolation film 2, blend compounds water to isolation film and cystosepiment into
Row bonding；
Step 6. pours elastic telescopic body 1: it is a pair of that prepared 1 mixture of elastic telescopic body is poured into 2 top of isolation film
In the flexible sealing that fashioned iron gap is formed, and to its abundant vibration compacting, its top surface is modified later, is arranged to concave curved
Face.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (9)
1. a kind of seamless expansion-contraction devices with elastic telescopic body, it is characterised in that: including elastic telescopic body (1), isolation film
(2), cystosepiment (3), fashioned iron (4), anchor slab (5) and embedded bar (6), the embedded bar (6), anchor slab (5) quantity be it is multiple,
It is arranged symmetrically along bridge expanssion joint center line, the lower part of the embedded bar (6) is embedded in bridge end or abutment parados, top
It is set in preformed groove, is connected with anchor slab (5) above the embedded bar (6), the fashioned iron (4) is along bridge expanssion joint center
Line is symmetrical set, and fashioned iron (4) side-lower is welded with anchor slab (5), and anchor slab (5) is along fashioned iron (4) length direction equidistant arrangement, institute
It states cystosepiment (3) to be installed on above the bracket of fashioned iron (4), to support top elastic telescopic body (1) weight, the isolation film
(2) it is set to the top of cystosepiment (3), cohering between elastic telescopic body (1) and lower section cystosepiment (3), the elasticity is isolated
Extrusome (1) is set in the flexible sealing that a pair of of fashioned iron (4) gap is formed above isolation film (2).
2. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the pre-buried steel
Muscle (6) is closed hoop, and the top and top anchor slab (5) of the embedded bar (6) are welded to connect.
3. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the anchor slab
It (5) is square plate, the anchor slab (5) is welded to connect with the embedded bar (6) of the fashioned iron of top (4), lower section respectively, the anchor
Plate (5) is the intermediate Force transmission parts of fashioned iron (4), embedded bar (6).
4. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the fashioned iron
(4) for using expansion joint center line as symmetrically arranged a pair of of the steel member of baseline, the fashioned iron (4) and anchor slab (5) are close to expansion joint
Side be welded to connect, side wall of the fashioned iron (4) close to expansion joint is outward extended with bracket, and the upper surface of the bracket is in water
Flat-shaped, the upper surface of the bracket and the side wall of fashioned iron (4) form stepped groove.
5. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the cystosepiment
(3) end face and fashioned iron (4) contact surface squeezes patch jail.
6. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the isolation film
(2) material is one of metal foil paper, gummed paper and plastic film.
7. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the elasticity is stretched
The top surface of contracting body (1) is concave curved surface, the end face of the elastic telescopic body (1) and fashioned iron (4) outer surface bonding connection.
8. a kind of seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that: the elasticity is stretched
Contracting body (1) material is one of adhesive, sealant, elaterite and rubber modified asphalt.
9. a kind of construction method of the seamless expansion-contraction devices with elastic telescopic body as described in claim 1, it is characterised in that:
Include the following steps:
Step 1. buries embedded bar (6) in bridge end or abutment parados: first at the scene operating area according to embedded bar
(6) specification is dimensioned to annular closed reinforcing bar, prefabricated or cast-in-place apply in bridge beam body later in case subsequent processing uses
Work link when reinforcing bar binds operation, equidistantly buries embedded bar in bridge end or abutment parados along bridge expanssion joint center line
(6), and according to expansion joint every embedded bar of construction requirement strict control (6) depth of burying；
Step 2. is in welding anchor slab (5) on fashioned iron (4): after the completion of anchor slab (5) presses design specification, dimensioned, according to anchor slab (5)
Number equidistant placement anchor slab (5) on fashioned iron (4) length direction connect anchor slab (5) with fashioned iron (4) using double welded joint later
Get up；
Step 3. anchor slab (5) and embedded bar (6) are welded to connect: being welded with after the completion of fashioned iron (4) processing and fabricating of anchor slab (5), just
The welded connecting of next step anchor slab (5) Yu embedded bar (6) can be carried out, fashioned iron is lived in supported underneath using movable supporting frame first
(4), adjusting type steel (4) position on the length direction of expansion joint later, so that anchor slab (5) is close to embedded bar (6), later in width
It spends directional trim fashioned iron (4), so that anchor slab (5) and embedded bar (6) corresponding position meet construction technical requirement, then using double
Face weld seam connects anchor slab (5) and embedded bar (6)；
Step 4. pours reserved notch: fashioned iron (4) and the anchor slab (5), anchor slab (5) and embedded bar (6) weld job of lower section are complete
At and weldquality reach welding technique require after, in next step can in preformed groove casting cement concrete or fiber concrete,
And it is closely knit to concrete vibrating；
Cystosepiment (3), isolation film (2) are arranged in step 5.: according to construction technical requirement, cutting out the foam of respective thickness and width
Plate (3), and it is segmented, it is set to above fashioned iron (4) bracket later, squeezes its end face and fashioned iron (4) contact surface and paste
Jail, after completing cystosepiment (3) installation, subsequent processing will be completely overlying on cystosepiment (3) with isolation film (2), blend compounds water every
It is bonded from film (2) and cystosepiment (3)；
Step 6. pours elastic telescopic body (1): prepared elastic telescopic body (1) mixture is poured into one above isolation film (2)
In the flexible sealing formed to fashioned iron gap, and to its abundant vibration compacting, its top surface is modified later, is arranged to concave curved
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215597.4A CN109972504A (en) | 2019-03-21 | 2019-03-21 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215597.4A CN109972504A (en) | 2019-03-21 | 2019-03-21 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
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| CN109972504A true CN109972504A (en) | 2019-07-05 |
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ID=67079829
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|---|---|---|---|
| CN201910215597.4A Pending CN109972504A (en) | 2019-03-21 | 2019-03-21 | A kind of seamless expansion-contraction devices and its construction method with elastic telescopic body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331787A (en) * | 2019-07-09 | 2019-10-15 | 中铁十九局集团第二工程有限公司 | The construction method that part concrete is connect with beam body concrete is poured after a kind of enhancing beam body sealing end |
| CN113089412A (en) * | 2021-04-13 | 2021-07-09 | 张国星 | Method for reinforcing waterproof expansion joint of highway |
| CN113914210A (en) * | 2021-10-20 | 2022-01-11 | 中冶南方城市建设工程技术有限公司 | Segmental prefabricated seamless expansion joint device and construction method thereof |
| CN114892544A (en) * | 2022-03-29 | 2022-08-12 | 重庆建筑工程职业学院 | Bridge expansion joint repairing device and repairing method thereof |
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| CN114892544B (en) * | 2022-03-29 | 2023-10-20 | 重庆建筑工程职业学院 | Bridge expansion joint repairing device and repairing method thereof |
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