CN203923902U - The double-deck SMA deck installation structure of a kind of flip-over type - Google Patents
The double-deck SMA deck installation structure of a kind of flip-over type Download PDFInfo
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- CN203923902U CN203923902U CN201420214783.9U CN201420214783U CN203923902U CN 203923902 U CN203923902 U CN 203923902U CN 201420214783 U CN201420214783 U CN 201420214783U CN 203923902 U CN203923902 U CN 203923902U
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Abstract
The utility model discloses the double-deck SMA deck installation structure of a kind of flip-over type, comprise bridge floor, above bridge floor, be equipped with successively upper layer, adhesion coating, lower surface layer, sealing and water-proof tack coat from top to down.This structure has been broken the bituminous texture layer regulation that the stone size size is successively decreased from below to up of current specifications requirement, but requirement designs based on horizon function, make upper layer there is good cracking resistance and anti-wear performance, lower surface layer has good closely knit waterproof and adhesive property, and upper and lower faces layer mix type is similar, constructability.Adopt this structure can ensure that bridge deck pavement has good density, impermeability, low-temperature cracking-resistance and high-temperature stability.
Description
Technical field
The utility model belongs to Communication and Transportation Engineering field, relates in particular to the double-deck SMA deck installation structure of a kind of flip-over type form, is mainly used in the deck paving engineering of Very Large Bridge.
Background technology
Bridge deck pavement is the important component part on road surface, because of bridge deck and mat formation hugely at material properties and aspect of performance difference between layer, belongs to hard and soft combination, easily produces discontinuous stress and strain under the External Force Actings such as vehicular load.Moreover, being subject to the impact of deflection of bridge span, bridge floor vibrations are frequent, and thermal stresses is remarkable, and these external environments are had higher requirement to the performance of bridge deck pavement.But, at present in engineering, often do not do special design for bridge deck pavement, and directly adopt in roadbed paragraph pavement engineering in, upper layer structure and material carry out deck paving.Cause bridge floor in current domestic all kinds of pavement engineerings to emit the earlier period damage such as water, whiting phenomenon to grow thickly, had a strong impact on bridge floor durability and road-ability.Engineering practice shows, bridge deck pavement, if do not carried out specialized structure design, is difficult to meet the requirement of layer properties of mating formation.Therefore, the structure design of bridge deck pavement has become one of problem of those skilled in the art's concern.
Summary of the invention
For the technical problem of current bridge floor durability deficiency, the purpose of this utility model is, provide a kind of flip-over type double-deck SMA deck installation structure, this structure has been broken the bituminous texture layer regulation that the stone size size is successively decreased from below to up of current specifications requirement, but requirement designs based on horizon function, make upper layer there is good cracking resistance and anti-wear performance, lower surface layer has good closely knit waterproof and adhesive property, and two-layer mix type is similar, constructability.
For realizing above-mentioned task, the utility model adopts following technical solution:
The double-deck SMA deck installation structure of a kind of flip-over type, comprises bridge floor, it is characterized in that, is equipped with successively upper layer, adhesion coating, lower surface layer, sealing and water-proof tack coat from top to down above bridge floor.
Other feature of the present utility model is:
Described upper layer is SMA-13 type asphalt-mastic-broken stone layer, and thickness is 4cm;
Described adhesion coating and water-proof tack coat are SBS modified emulsifying asphalt layer;
Described lower surface layer is SMA-10 type asphalt-mastic-broken stone layer, and thickness is 3.5cm;
Described sealing is SBS modified bitumen synchronous surface dressing, and thickness is 1cm.
Described SBS modified emulsifying asphalt spread quantity in adhesion coating is 0.4kg/m
2～0.6kg/m
2, SBS modified emulsifying asphalt spread quantity in water-proof tack coat is 0.3kg/m
2～0.5kg/m
2.
The grading limit of the compound in described SMA-13 asphalt-mastic-broken stone layer is: be 100% by the quality percentage of 16mm sieve aperture, be 90%～98% by the quality percentage of 13.2mm sieve aperture, be 55%～72% by the quality percentage of 9.5mm sieve aperture, be 22%～32% by the quality percentage of 4.75mm sieve aperture, be 17%～25% by the quality percentage of 2.36mm sieve aperture, be 14%～22% by the quality percentage of 1.18mm sieve aperture, be 12%～18% by the quality percentage of 0.6mm sieve aperture, be 11%～15% by the quality percentage of 0.3mm sieve aperture, be 10%～14% by the quality percentage of 0.15mm sieve aperture, be 9%～11% by the quality percentage of 0.075mm sieve aperture.
The grading limit of the compound in described SMA-10 asphalt-mastic-broken stone layer is: be 100% by the quality percentage of 13.2mm sieve aperture, be 90%～100% by the quality percentage of 9.5mm sieve aperture, be 30%～60% by the quality percentage of 4.75mm sieve aperture, be 20%～32% by the quality percentage of 2.36mm sieve aperture, be 17%～26% by the quality percentage of 1.18mm sieve aperture, be 14%～20% by the quality percentage of 0.6mm sieve aperture, be 12%～18% by the quality percentage of 0.3mm sieve aperture, be 10%～16% by the quality percentage of 0.15mm sieve aperture, be 9%～13% by the quality percentage of 0.075mm sieve aperture.
Described upper layer (1) and the thickness of lower surface layer (3) all increase or reduce 1cm～3cm.
The double-deck SMA deck installation structure of flip-over type of the present utility model, can ensure that bridge deck pavement has good density, impermeability, low-temperature cracking-resistance and high-temperature stability.Tool has the following advantages:
(1) cage construction that upper layer SMA-13 asphalt-mastic-broken stone layer is built by coarse aggregate has excellent opposing permanent deformation; The bitumastic being made up of coarse aggregate, Machine-made Sand, breeze, lignin fibre and SBS modified bitumen is filled in coarse aggregate skeleton space good durability is provided; Thicker design grating makes bridge floor form coarse construction depth, makes bridge floor have good skid resistance and lower traffic noise.
(2) lower surface layer SMA-10 asphalt-mastic-broken stone design grating is thinner, has ensured anti-fatigue performance and the cracking resistance of bridge floor; Compound maximum particle diameter is less, better with bridge deck bond effect, is conducive to ensure interlaminar strength, adaptable to floor elevation, is conducive to ensure bridge floor planeness, and construction compacting is easy; SBS modified bitumen consumption reduces 0.1～0.2% on standard mix design quantity basis, has saved engineering cost, has improved the shear behavior of time surface layer, has ensured not bellding of road surface simultaneously.
(3) upper layer and lower surface layer mix type are SMA asphalt-mastic-broken stone layer, and only maximum particle diameter difference can reduce the machinery adjustment in construction, the construction control of being more convenient for.
(4) sealing adopts synchronous surface dressing, improves efficiency of construction, and waterproof and adhesive property are good, and to adopt with upper and lower surface layer pitch used be identical SBS modified bitumen, constructability control.
(5) water-proof tack coat adopts SBS modified emulsifying asphalt, has improved the caking property of bridge deck and sealing, brings into play its effect guarantee is provided for sealing.
Brief description of the drawings
Fig. 1 is the double-deck SMA deck installation structure of flip-over type of the present utility model schematic cross-sectional view.
Mark in figure represents respectively: 1, upper layer; 2, adhesion coating; 3, lower surface layer; 4, sealing; 5, water-proof tack coat, 6, bridge floor.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
Referring to Fig. 1, the present embodiment provides a kind of double-deck SMA deck installation structure of flip-over type of concrete form, comprises bridge floor 6, above being positioned at bridge floor 6, is equipped with successively upper layer 1, adhesion coating 2, lower surface layer 3, sealing 4 and water-proof tack coat 5 from top to bottom; Wherein:
It is the SMA-13 type asphalt-mastic-broken stone layer of 4cm that upper layer 1 adopts thickness, compound and SBS modified bitumen that SMA-13 type asphalt-mastic-broken stone layer is made up of coarse aggregate, Machine-made Sand, breeze, lignin fibre form, wherein in breeze, be mixed with slaked lime, the mixed ratio example of slaked lime and breeze is 3:7, and lignin fibre volume is 0.3% of compound gross mass.Compound design grating is partially thick, the accurate mix-design consumption of SBS modified bitumen consumption label taking.
The cage construction that this SMA-13 asphalt-mastic-broken stone layer is built by coarse aggregate has excellent opposing permanent deformation; Grading limit is shown in Table 1.
That is: the grading limit of the compound in SMA-13 asphalt-mastic-broken stone layer is: be 100% by the quality percentage of 16mm sieve aperture, be 90%～98% by the quality percentage of 13.2mm sieve aperture, be 55%～72% by the quality percentage of 9.5mm sieve aperture, be 22%～32% by the quality percentage of 4.75mm sieve aperture, be 17%～25% by the quality percentage of 2.36mm sieve aperture, be 14%～22% by the quality percentage of 1.18mm sieve aperture, be 12%～18% by the quality percentage of 0.6mm sieve aperture, be 11%～15% by the quality percentage of 0.3mm sieve aperture, be 10%～14% by the quality percentage of 0.15mm sieve aperture, be 9%～11% by the quality percentage of 0.075mm sieve aperture.
Adhesion coating 2 and water-proof tack coat 5 all adopt SBS modified emulsifying asphalt layer, and wherein, SBS modified emulsifying asphalt spread quantity in adhesion coating 2 is 0.4～0.6kg/m
2, SBS modified emulsifying asphalt spread quantity in water-proof tack coat 5 is 0.3kg/m
2～0.5kg/m
2.
It is the SMA-10 type asphalt-mastic-broken stone layer of 3.5cm that lower surface layer 3 adopts thickness, the compound being made up of coarse aggregate, Machine-made Sand, breeze, lignin fibre and SBS modified bitumen form, wherein in breeze, be mixed with slaked lime, the mixed ratio example of slaked lime and breeze is 3:7, and lignin fibre volume is 0.3% of compound gross mass.SMA-10 asphalt-mastic-broken stone design grating is thinner, has ensured anti-fatigue performance and the cracking resistance of bridge floor; Compound maximum particle diameter is less, better with bridge deck bond effect, is conducive to ensure interlaminar strength, adaptable to floor elevation, is conducive to ensure bridge floor planeness, and construction compacting is easy; SBS modified bitumen consumption reduces 0.1%～0.2% on standard mix design quantity basis.Save engineering cost, improved the shear behavior of time surface layer, ensured not bellding of road surface simultaneously.SMA-10 type asphalt-mastic-broken stone grading limit is shown in Table 1.
That is: the grading limit of the compound in SMA-10 asphalt-mastic-broken stone layer is: be 100% by the quality percentage of 13.2mm sieve aperture, be 90%～100% by the quality percentage of 9.5mm sieve aperture, be 30%～60% by the quality percentage of 4.75mm sieve aperture, be 20%～32% by the quality percentage of 2.36mm sieve aperture, be 17%～26% by the quality percentage of 1.18mm sieve aperture, be 14%～20% by the quality percentage of 0.6mm sieve aperture, be 12%～18% by the quality percentage of 0.3mm sieve aperture, be 10%～16% by the quality percentage of 0.15mm sieve aperture, be 9%～13% by the quality percentage of 0.075mm sieve aperture.
Sealing 4 is selected SBS modified bitumen synchronous surface dressing, and thickness is 1cm.Be made up of SBS modified bitumen and rubble, wherein, SBS modified bitumen spread quantity is 1.5kg/m
2～1.8kg/m
2; Rubble specification is 4.75～9.5mm, and spreading amount is 8～10kg/m
2, coverage scale is 60～70%.With upper and lower surface layer (1,3) pitch used be identical SBS modified bitumen, constructability control.Water-proof tack coat 5 has also improved the caking property of bridge deck and sealing 4, for sealing 4 its effects of performance provide guarantee.
Table 1:SMA-13 type and SMA-10 asphalt-mastic-broken stone layer mixture gradation scope
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the technical solution of the utility model, increase and decrease thickness or change grading limit, all belong to the protection domain of the application's technical scheme.
Claims (5)
1. the double-deck SMA deck installation structure of flip-over type, comprise bridge floor (6), it is characterized in that, be equipped with successively upper layer (1), adhesion coating (2), lower surface layer (3), sealing (4) and water-proof tack coat (5) from top to down in bridge floor (6) top.
2. the double-deck SMA deck installation structure of flip-over type as claimed in claim 1, is characterized in that:
Described upper layer (1) is SMA-13 type asphalt-mastic-broken stone layer, and thickness is 4cm;
Described adhesion coating (2) and water-proof tack coat (5) are SBS modified emulsifying asphalt layer;
Described lower surface layer (3) is SMA-10 type asphalt-mastic-broken stone layer, and thickness is 3.5cm;
Described sealing (4) is SBS modified bitumen synchronous surface dressing, and thickness is 1cm.
3. the double-deck SMA deck installation structure of flip-over type as claimed in claim 1, it is characterized in that, the grading limit of the compound in described SMA-13 asphalt-mastic-broken stone layer is: be 100% by the quality percentage of 16mm sieve aperture, be 90%～98% by the quality percentage of 13.2mm sieve aperture, be 55%～72% by the quality percentage of 9.5mm sieve aperture, be 22%～32% by the quality percentage of 4.75mm sieve aperture, be 17%～25% by the quality percentage of 2.36mm sieve aperture, be 14%～22% by the quality percentage of 1.18mm sieve aperture, be 12%～18% by the quality percentage of 0.6mm sieve aperture, be 11%～15% by the quality percentage of 0.3mm sieve aperture, be 10%～14% by the quality percentage of 0.15mm sieve aperture, be 9%～11% by the quality percentage of 0.075mm sieve aperture.
4. the double-deck SMA deck installation structure of flip-over type as claimed in claim 2, it is characterized in that, the grading limit of the compound in described SMA-10 asphalt-mastic-broken stone layer is: be 100% by the quality percentage of 13.2mm sieve aperture, be 90%～100% by the quality percentage of 9.5mm sieve aperture, be 30%～60% by the quality percentage of 4.75mm sieve aperture, be 20%～32% by the quality percentage of 2.36mm sieve aperture, be 17%～26% by the quality percentage of 1.18mm sieve aperture, be 14%～20% by the quality percentage of 0.6mm sieve aperture, be 12%～18% by the quality percentage of 0.3mm sieve aperture, be 10%～16% by the quality percentage of 0.15mm sieve aperture, be 9%～13% by the quality percentage of 0.075mm sieve aperture.
5. the double-deck SMA deck installation structure of flip-over type as claimed in claim 2, is characterized in that, described upper layer (1) and the thickness of lower surface layer (3) all increase or reduce 1cm～3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214783.9U CN203923902U (en) | 2014-04-29 | 2014-04-29 | The double-deck SMA deck installation structure of a kind of flip-over type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420214783.9U CN203923902U (en) | 2014-04-29 | 2014-04-29 | The double-deck SMA deck installation structure of a kind of flip-over type |
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|---|---|
| CN203923902U true CN203923902U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420214783.9U Expired - Fee Related CN203923902U (en) | 2014-04-29 | 2014-04-29 | The double-deck SMA deck installation structure of a kind of flip-over type |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863048A (en) * | 2015-05-28 | 2015-08-26 | 江苏中路工程技术研究院有限公司 | Deck laying composite waterproof structure and construction process of deck laying composite waterproof structure |
| CN105780647A (en) * | 2014-12-16 | 2016-07-20 | 湖北华舟重工应急装备股份有限公司 | Assembled-type steel bridge deck with prefabricated light-thin wear-proof anti-skid layer |
| CN109811656A (en) * | 2017-11-22 | 2019-05-28 | 江门市政企业集团有限公司 | A kind of making bilayer SMA pitch steel box girder bridge face waterproof and anticorrosion construction technology |
| CN110939058A (en) * | 2019-12-31 | 2020-03-31 | 四川交投建设工程股份有限公司 | Steel truss-concrete composite beam bridge double-layer SMA (shape memory alloy) bridge deck pavement system and construction method |
-
2014
- 2014-04-29 CN CN201420214783.9U patent/CN203923902U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780647A (en) * | 2014-12-16 | 2016-07-20 | 湖北华舟重工应急装备股份有限公司 | Assembled-type steel bridge deck with prefabricated light-thin wear-proof anti-skid layer |
| CN104863048A (en) * | 2015-05-28 | 2015-08-26 | 江苏中路工程技术研究院有限公司 | Deck laying composite waterproof structure and construction process of deck laying composite waterproof structure |
| CN109811656A (en) * | 2017-11-22 | 2019-05-28 | 江门市政企业集团有限公司 | A kind of making bilayer SMA pitch steel box girder bridge face waterproof and anticorrosion construction technology |
| CN110939058A (en) * | 2019-12-31 | 2020-03-31 | 四川交投建设工程股份有限公司 | Steel truss-concrete composite beam bridge double-layer SMA (shape memory alloy) bridge deck pavement system and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20160429 |