CN206538681U - Steel box-girder paving structure and bridge - Google Patents
Steel box-girder paving structure and bridge Download PDFInfo
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- CN206538681U CN206538681U CN201720177435.2U CN201720177435U CN206538681U CN 206538681 U CN206538681 U CN 206538681U CN 201720177435 U CN201720177435 U CN 201720177435U CN 206538681 U CN206538681 U CN 206538681U
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- steel box
- girder
- paving structure
- tack coat
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Abstract
The utility model discloses a kind of steel box-girder paving structure and bridge, including steel box-girder body, it is provided with steel box-girder body on bitumen layer, the loading end of steel box-girder body and is equipped with water-proof tack coat group, cushion, bitumen layer and wearing course successively, cushion is self-compact concrete；Water-proof tack coat group includes anti-corrosion priming coat, waterproof membrane and the antiskid tack coat laid successively, wherein, anti-corrosion priming coat is bonded on loading end, and antiskid tack coat and cushion are bonding.Steel box-girder paving structure and bridge that the utility model is provided, self-compact concrete itself have that toughness is big, split and it is not bad the characteristics of, wearing course is set to reduce the vehicle-mounted lotus of Periodic Traveling on self-compact concrete simultaneously, self-compact concrete and the adhesion strength and binding ability of steel box-girder body are lifted again by water-proof tack coat group, reduction self-compact concrete occurs passage and gathers around the probability of bag disease.
Description
Technical field
The utility model is related to bridge technology, and in particular to a kind of steel box-girder paving structure and bridge.
Background technology
With the fast development of China's capital construction cause, in high-altitude during Roadway Construction, steel box girder bridge floor paving is efficient due to its
Efficiency of construction and be widely used, steel box-girder paving structure includes steel box-girder body and being layed in steel case in the prior art
Concrete structure on beam body, concrete structure is generally multilayer asphalt concrete structure layer or by cement concrete constructions layer
Constituted plus asphalt concrete structure layer.
In recent years, the report that steel box girder bridge floor paving is damaged within service life is of common occurrence, common, steel box-girder
Deck paving is particularly some large-scale, extra-large bridges all prior to pavement surfaces distress, occurs as soon as within several years after being often open to traffic serious
Disease, analyzes its reason, and under the vehicle-mounted lotus effect of Periodic Traveling, due to the premium properties of steel, steel box-girder body assume responsibility for mainly
Load is acted on, while fatigue damage is primarily generated in concrete pavement layer, and most of cement concretes and bituminous concrete
Rich in fine sight defect, can occur micro-and meso-cracks wherein after load action, and with load periodicity effect and by
Flaring exhibition, ultimately results in damage and failure, and the Fatigue Damage Cracking of cement concrete and bituminous concrete has turned into influence bridge to be made
With a major disease of function.
It is in place of the deficiencies in the prior art, by multilayer asphalt concrete structure layer or cement concrete constructions layer plus drip
The easy fatigue cracking of concrete structure of mating formation of blue or green concrete composition and reduce service life.
Utility model content
The purpose of this utility model is to provide a kind of steel box-girder paving structure and bridge, of the prior art above-mentioned to solve
Weak point.
To achieve these goals, the utility model provides following technical scheme：
Drip is provided with a kind of steel box-girder paving structure for bridge, including steel box-girder body, the steel box-girder body
Water-proof tack coat group, cushion, the bitumen layer and abrasion are equipped with successively on cyan layer, the loading end of the steel box-girder body
Layer, the cushion is self-compact concrete；
The water-proof tack coat group includes anti-corrosion priming coat, waterproof membrane and the antiskid tack coat laid successively, wherein, institute
State anti-corrosion priming coat to be bonded on the loading end, the antiskid tack coat and the cushion are bonding.
Above-mentioned steel box-girder paving structure, the cleannes of the loading end are not less than Sa2.5 grades, and roughness is located at 50~
Between 100um.
Rubble is scattered with above-mentioned steel box-girder paving structure, the antiskid tack coat, the radial dimension of the rubble is situated between
Between 5~10mm.
Above-mentioned steel box-girder paving structure, the waterproof membrane is two layers.
Above-mentioned steel box-girder paving structure, the thickness of the wearing course is not less than 20mm, and the wearing course is embedded with aggregate.
Above-mentioned steel box-girder paving structure, the self-compact concrete is flyash PVA fiber concretes, described
The thickness of cushion is not less than 60mm.
Above-mentioned steel box-girder paving structure, the material of the anti-corrosion priming coat is acrylic resin, the material of the waterproof membrane
Matter is methacrylic resin, and the material of the antiskid tack coat is epoxy resin.
A kind of bridge, including the multiple steel box-girder paving structures docked successively, the steel box-girder paving structure are above-mentioned
Steel box-girder paving structure.
In the above-mentioned technical solutions, the steel box-girder paving structure that the utility model is provided, self-compact concrete is certainly
Body have that toughness is big, split and it is not bad the characteristics of, while setting wearing course on self-compact concrete with the cycle of reducing
Driving load, self-compact concrete and the adhesion strength and knot of steel box-girder body are lifted again by water-proof tack coat group
Performance is closed, reduction self-compact concrete occurs passage and gathers around the probability of bag disease.
Because above-mentioned steel box-girder paving structure has above-mentioned technique effect, the bridge comprising the steel box-girder paving structure also should
With corresponding technique effect.
Brief description of the drawings
, below will be to institute in embodiment in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only described in the utility model
Some embodiments, for those of ordinary skill in the art, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation for the steel box-girder paving structure that Fig. 1 provides for the utility model embodiment.
Description of reference numerals：
1st, steel box-girder body；2nd, water-proof tack coat group；21st, anti-corrosion priming coat；22nd, waterproof membrane；23rd, antiskid tack coat；3、
Cushion；4th, bitumen layer；5th, wearing course.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with accompanying drawing pair
The utility model is further detailed.
As shown in figure 1, a kind of steel box-girder paving structure for bridge that the utility model embodiment is provided, including steel case
It is provided with beam body 1, steel box-girder body 1 on bitumen layer 4, the loading end of steel box-girder body 1 and is equipped with water-proof tack coat successively
Group 2, cushion 3, bitumen layer 4 and wearing course 5, cushion 3 are self-compact concrete；Water-proof tack coat group 2 includes
Anti-corrosion priming coat 21, waterproof membrane 22 and the antiskid tack coat 23 laid successively, wherein, anti-corrosion priming coat 21 is bonded in loading end
On, antiskid tack coat 23 and cushion 3 are bonding.
Specifically, the self-compact concrete of cushion 3, which is main load, bears layer, without vibration self-compaction coagulation
Soil is with good mechanical property and endurance quality, the self-compact concrete that such as flyash in great mixed amount PVA fibers are made,
With lightweight (mitigate weight than existing deck paving cement concrete and/or bituminous concrete and be more than 30%), the high (pole of intensity
Limit compression strength and be more than 50MPa), good toughness (ultimate tensile strength is more than 3%, and splits and not bad) the characteristics of, such main body carrying
The performance of structure is strengthened, and improves service life, reduces probability of damage, wherein, cushion 3 passes through water-proof tack coat
Group 2 is bonded on steel box-girder body 1, and water-proof tack coat group 2 includes anti-corrosion priming coat 21, waterproof membrane 22 and antiskid tack coat
23, wherein, anti-corrosion priming coat 21 is used to prevent the loading end of steel box-girder body 1 is used for a long time from corroding, it is preferred that anti-corrosion bottom
The material of coating 21 is acrylic resin, and its consumption is 150~200g/m2；The material of waterproof membrane 22 is preferably methacrylic acid
Resin, its consumption is 2500~3500g/m2；The material of antiskid tack coat 23 is that content of epoxy resin is 800~1000g/m2,
Self-compact concrete and the adhesion strength and associativity of steel box-girder body 1 are lifted by compound water-proof tack coat group 2
Can, prevent it from influenceing steel box-girder body 1 after cracking, its crackle is confined to the inside of steel box-girder body 1 and prevents it from expanding.
Away from the side of steel box-girder body 1 also not direct bearing load in self-compact concrete, but bonded by bitumen layer 4
Wearing course 5, wherein, the material of bitumen layer 4 is preferably the cation-modified emulsified asphalt of PC-3 high viscositys, and consumption is preferably 400~
600g/m2, wearing course 5 is preferably that high viscosity is modified and mixes polyester fiber SMA-10 from material, and the lifting steel box-girder of wearing course 5 is mated formation knot
The wear hardness of structure, prevents direct bearing load from cracking, and bitumen layer 4 is used to lift bitumen layer 4 and without vibration self-compaction is mixed
Bonding strength between solidifying soil.In the present embodiment, self-compact concrete is on the one hand reduced by wearing course 5 and occurs crackle
Probability, on the other hand extremely superior by the performance of self-compact concrete itself, another further aspect passes through water-proof binding
The crackle that layer group 2 reduces self-compact concrete expands and conduction trend, and such three aspects unification lifts its performance.
In a series of projects that applicant constructs, above-mentioned steel box-girder has been used to mat formation knot in the project of Inner Mongol packet header
Structure, substantially common steel box-girder paving structure effect more of the prior art is more superior for its efficiency after coming into operation, and disease goes out
Existing total amount is significant lower.
The steel box-girder paving structure that the utility model embodiment is provided, its preferred Specific construction mode is as follows：
Step 1：Being carried out in strict accordance with design and code requirement, steel box-girder 1 welding quality inspection of body is qualified and scene is clear
The derusting by sandblasting of steel box girder bridge face plate is carried out after reason is clean, it is desirable to which the cleannes of derusting by sandblasting back axle panel surface reach Sa2.5
Level, roughness reaches 50~100 μm.In steel box-girder body Bridge 1 panel derusting by sandblasting, it is desirable to which environment temperature must not be less than 10 DEG C
Forbid construction with running into when the weather conditions such as rain, snow, condensation or relative air humidity are more than 85%；
Step 2：Implement acrylic resin anti-corrosion priming coat in 3h after the assay was approved in steel box girder bridge panel impeller blasting
21.Before construction, acrylic resin is thoroughly stirred using mechanical mixer, it should be noted that additional air should not be allowed to exist with air bubble-shaped
In mixture.The anti-corrosion priming coat 21 should use spraying method, its quality control standard：Consumption is 150~200g/m2, third
The drying time of olefin(e) acid resin resistant priming coat 21, the hardening time that 12 DEG C of temperature was about 60min, temperature depending on site environment
22 DEG C of condition general drying time is 30min；
Step 3：After after the acrylic resin solidification of anti-corrosion priming coat 21, methacrylic resin waterproof membrane 22 is sprayed,
Its point is constructed for two layers, and every layer of wet-film thickness is not less than 1.2mm, and dry film gross thickness is no more than 2mm, and total consumption 2500~
3500g/m2.After about 1 hour after the solidification of first floor waterproof membrane 22, can directly coat second layer waterproof membrane 22；
Step 4：After the methacrylic resin of waterproof membrane 22 is fully cured, antiskid tack coat 23 should be carried out immediately and applied
Work, application epoxy resin, epoxy resin spraying consumption is 800~1000g/m2, and uniform spreading 5~10mm basalt is broken simultaneously
Stone, rubble consumption is 5m3/1000m2, and about 1h (23 DEG C) can be fully cured；
Step 5：After the epoxy resin of antiskid tack coat 23 is fully cured, meet what is required in strict accordance with match ratio mix
Flyash in great mixed amount PVA fiber concretes, then carry out concreting, levelling and receive face, carried out after the concrete final set of cushion 3
Moisture conservation health 14 days, what is satisfied the requirements also can be 7 days using steam curing；
Step 6：The final set of flyash in great mixed amount PVA fiber concretes, the health of layer 3 to be buffered are reached after desired strength, are applied
Work adhesion coating, PC-3 cationic emulsified bitumens are uniformly dispensed using special asphalt truck spreader, and consumption is 400~600g/m2, and temperature is low
It must not be constructed adhesion coating in 10 DEG C or rainy day；
Step 7：After after the demulsification of adhesion coating emulsified asphalt, carry out high viscosity modification in strict accordance with SMA construction Crafts and mix poly-
The construction of ester fiber SMA-10 wearing courses 5, friendship can be opened by being naturally cooled to completely after SMA road surfaces are to be paved after less than 50 DEG C
It is logical.
The steel box-girder paving structure that the utility model embodiment is provided, self-compact concrete itself has toughness
Greatly, split and it is not bad the characteristics of, while on self-compact concrete set wearing course 5 to reduce the vehicle-mounted lotus of Periodic Traveling,
Self-compact concrete and the adhesion strength and binding ability of steel box-girder body 1 are lifted again by water-proof tack coat group 2,
Reduction self-compact concrete occurs passage and gathers around the probability of bag disease.
In the present embodiment, it is preferred that the cleannes of loading end are not less than Sa2.5 grades, roughness be located at 50~100um it
Between, higher cleannes lift the adhesive property of water-proof tack coat group 2.
In the present embodiment, it is preferred that rubble is scattered with antiskid tack coat 23, the radial dimension of rubble is between 5~10mm
Between, such as basalt lifts the intensity of antiskid tack coat 23 at any time.
In the present embodiment, it is preferred that the thickness of wearing course 5 is not less than 20mm, wearing course 5 is embedded with aggregate, such as basalt,
Aggregate lifts the abrasion resisting ability of wearing course 5.
In the present embodiment, it is preferred that self-compact concrete is flyash PVA fiber concretes, the thickness of cushion 3
Degree is not less than 60mm.Self-compact concrete is agent structure, and lifting thickness ensures its bearing capacity.
The utility model embodiment also provides a kind of bridge, including the multiple steel box-girder paving structures docked successively, steel case
Beam paving structure is above-mentioned steel box-girder paving structure.Because above-mentioned steel box-girder paving structure has above-mentioned technique effect, comprising
The bridge of the steel box-girder paving structure should also have corresponding technique effect.
Some one exemplary embodiments of the present utility model are only described by way of explanation above, undoubtedly, for
One of ordinary skill in the art, can be with a variety of in the case of without departing from spirit and scope of the present utility model
Mode is modified to described embodiment.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as
Limitation to the utility model claims.
Claims (8)
1. it is provided with pitch on a kind of steel box-girder paving structure for bridge, including steel box-girder body, the steel box-girder body
Layer, it is characterised in that be equipped with water-proof tack coat group, cushion, the pitch on the loading end of the steel box-girder body successively
Layer and wearing course, the cushion are self-compact concrete；
The water-proof tack coat group includes anti-corrosion priming coat, waterproof membrane and the antiskid tack coat laid successively, wherein, it is described anti-
Rotten priming coat is bonded on the loading end, and the antiskid tack coat and the cushion are bonding.
2. steel box-girder paving structure according to claim 1, it is characterised in that the cleannes of the loading end are not less than
Sa2.5 grades, roughness is located between 50~100um.
3. steel box-girder paving structure according to claim 1, it is characterised in that be scattered with the antiskid tack coat broken
Stone, the radial dimension of the rubble is between 5~10mm.
4. steel box-girder paving structure according to claim 1, it is characterised in that the waterproof membrane is two layers.
5. steel box-girder paving structure according to claim 1, it is characterised in that the thickness of the wearing course is not less than
20mm, the wearing course is embedded with aggregate.
6. steel box-girder paving structure according to claim 1, it is characterised in that the self-compact concrete is powder
Coal ash PVA fiber concretes, the thickness of the cushion is not less than 60mm.
7. steel box-girder paving structure according to claim 1, it is characterised in that the material of the anti-corrosion priming coat is propylene
Acid resin, the material of the waterproof membrane is methacrylic resin, and the material of the antiskid tack coat is epoxy resin.
8. a kind of bridge, including the multiple steel box-girder paving structures docked successively, it is characterised in that the steel box-girder paving structure
For the steel box-girder paving structure described in claim any one of 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720177435.2U CN206538681U (en) | 2017-02-27 | 2017-02-27 | Steel box-girder paving structure and bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720177435.2U CN206538681U (en) | 2017-02-27 | 2017-02-27 | Steel box-girder paving structure and bridge |
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| Publication Number | Publication Date |
|---|---|
| CN206538681U true CN206538681U (en) | 2017-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720177435.2U Expired - Fee Related CN206538681U (en) | 2017-02-27 | 2017-02-27 | Steel box-girder paving structure and bridge |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442218A (en) * | 2018-03-30 | 2018-08-24 | 河南工业大学 | The test method of deck paving adhesive layer binding performance based on bubble test |
| CN110184933A (en) * | 2019-05-31 | 2019-08-30 | 中铁十六局集团有限公司 | A kind of steel box girder bridge floor paving construction method |
| CN110485273A (en) * | 2019-09-24 | 2019-11-22 | 杨烨 | A kind of bridge stress panel prefabricated part |
-
2017
- 2017-02-27 CN CN201720177435.2U patent/CN206538681U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442218A (en) * | 2018-03-30 | 2018-08-24 | 河南工业大学 | The test method of deck paving adhesive layer binding performance based on bubble test |
| CN110184933A (en) * | 2019-05-31 | 2019-08-30 | 中铁十六局集团有限公司 | A kind of steel box girder bridge floor paving construction method |
| CN110485273A (en) * | 2019-09-24 | 2019-11-22 | 杨烨 | A kind of bridge stress panel prefabricated part |
| CN110485273B (en) * | 2019-09-24 | 2021-09-21 | 南京六合高新建设发展有限公司 | Bridge stress panel prefabricated part |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 |
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| CF01 | Termination of patent right due to non-payment of annual fee |