CN105926456A - Construction technology of bridge deck pavement structure - Google Patents
Construction technology of bridge deck pavement structure Download PDFInfo
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- CN105926456A CN105926456A CN201610356303.6A CN201610356303A CN105926456A CN 105926456 A CN105926456 A CN 105926456A CN 201610356303 A CN201610356303 A CN 201610356303A CN 105926456 A CN105926456 A CN 105926456A
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the field of municipal engineering, and particularly discloses a construction technology of a bridge deck pavement structure. The bridge deck pavement structure comprises a bridge deck slab structure layer, and is characterized in that an epoxy asphalt-gravel bonding layer, a modified asphalt dense gradation asphalt structure layer, a modified emulsified asphalt bonding layer and an open-graded macropore asphalt surface layer are paved on the bridge deck slab structure layer sequentially from bottom to top. According to the invention, the bridge deck pavement structure is optimized, so that the functional requirement of the surface layer is improved, the macropore structure of the bridge deck surface layer is realized, the drainage performance of the pavement is improved, the anti-sliding performance of the pavement is improved, the sound-absorbing and noise-reduction effect of the pavement structure is achieved, and the comfort of the bridge deck surface layer is improved.
Description
(1) technical field
The present invention relates to municipal works field, particularly to the construction technology of a kind of deck installation structure.
(2) background technology
Municipal administration overpass vehicle flowrate is big, speed fast, preferably resolves the traffic connection between city zoning, assume responsibility for indoor main
Trans-regional traffic.Overpass deck paving is that a very important link, first deck paving are supplied directly to use
Person, directly influences the safety of driving, comfortableness；Secondly, protection bridge structure is also played an important role by deck paving.
Urban elevated road is mated formation in addition to should meeting general pavement strength, flatness and life requirement, it is also desirable to have good
Road-ability, the such as function such as draining, antiskid, simultaneously for passing through intensive residential block, industrial occupancy, also require that bridge floor spreads
Harness has certain noise reduction.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of have good drain function and rough surface structure,
The construction technology of the deck installation structure of absorbing sound and lowering noise.
The present invention is achieved through the following technical solutions:
A kind of construction technology of deck installation structure, it is characterised in that: described deck installation structure includes deck structrue layer, institute
State deck structrue layer and lay bituminous epoxy-rubble tack coat, modified pitch dense bitumen structure sheaf, modified milk the most successively
Change asphalt tack coat and open gradation big space asphalt surface course；
Construction technology comprises the steps:
(1) deck structrue layer uses blasting treatment, and degree of depth 1-3mm, undisguised rate >=20% are removed in sandblasting；
(2) being cleaned up by deck structrue layer after blasting treatment, spread bituminous epoxy in 24 hours, spread quantity is 0.8-
1.2kg/m2, the then rubble of spread particle diameter 5-10mm, coverage rate is 40-60%；
(3) construction of modified pitch dense bitumen structure sheaf such as conventional modified pitch form of construction work；
(4) after modified pitch dense bitumen structure sheaf cleaning, cleaning air-dry, uniform spraying modified emulsified asphalt sticking layer oil, spray
It is 0.4-0.6kg/m that the amount of spilling is converted to spring Colophonium2；
(5) construction of open gradation big space asphalt surface course such as conventional modified pitch form of construction work.
The more excellent technical scheme of the present invention is:
Described open gradation big space asphalt surface course is 3cm rubber asphalt AR-OGFC13, and voidage is 18-25%；Modified pitch
Dense bitumen structure sheaf is 6cm modified pitch AC-20S.
Described open gradation big space asphalt surface course uses basalt system to gather materials, and modified pitch dense bitumen structure sheaf is adopted
Gather materials by limestone system.
Its each layer technical thought from top to down is:
(1) surface layer be its requirement of gathering materials of big space pervious bed be basalt system, cutting optimal is that its requirement of gathering materials of impermeable stratum is
Limestone system, draining discharged by upper strata interlayer, and the biggest top layer, space can absorb noise, thus reaches the mesh of noise reduction draining
's；
(2) rubber asphalt AR-OGFC13 surface layer voidage typically can be controlled in 18～25%, carries for realizing noise reduction drain function
Having supplied good precondition, rubber asphalt is the regeneration of junked tire simultaneously, also improves the multinomial of matrix pitch
Performance, is a kind of environmental protection friendly material.Cutting optimal construction technology is ripe, and construction is simple, can preferably ensure construction quality；
(3) bridge deck water-proof system is bituminous epoxy+rubble tack coat and the combination of modified emulsifying asphalt water-proof tack coat.Floorings
Bituminous epoxy+breakstone water-proof binding layer is used to have good high-temperature stability and crack resistance at low-temperature, superpower fatigue resistance
Can be with excellent durability.Interlaminar bonding have employed modified emulsifying asphalt, and technology maturation is widely used, easy construction；
(4) process on deck structrue layer surface is most important with the bonding of bitumen layer for floorings, it is therefore necessary at guarantee
Bridge floor after reason has certain construction depth, and keeps being dried, clean.
Processing step is preferably:
In step (1), sandblasting construction environment temperature requirement is 5-40 DEG C, and relative air humidity is less than 90%.
In step (3), modified pitch dense bitumen structure sheaf construction technical standard is, striking times is two sides each 75
Secondary, degree of stability is not less than 8.0KN, and voidage is 4.0-5.5%, and Colophonium saturation is 65-75%, and residual stability is not less than 85%.
In step (5), the construction technical standard of open gradation big space asphalt surface course is, marshal piece a size of Φ
101.6mm × 63.5mm, marshal piece striking times is two-sided hitting real 50 times, voidage 18-25%, leakage analysis losing at 180 DEG C
＜ 0.3%, at 20 DEG C, disperse and lose ＜ 20% in fort, Kent.
The waterproof employing in described deck transverse slope upstream bituminous epoxy waterproof layer, height is identical with pavement thickness, and horizontal wall inscription downstream is adopted
Prefabricated rhone scheme, prefabricated draining groove width 10cm, high 9cm is combined with emulsified asphalt.
By technique scheme, the deck installation structure following advantages of the present invention:
(1) compared with traditional dense-graded asphalt concrete, the surface layer of noise-reducing drainage energy has higher skeleton embedded squeezing shape
State, structural stability is good, and thicker superficial makings provides good antiskid performance, particularly its high voidage can be by rainfall
The surface water of period runs through internal interconnected pore and drains into curb, makes road surface be difficult to hydrops, thus reduce water spatter, water drift and water
Mist phenomenon, it is ensured that traffic safety；
(2) macrostructure that big space mixture pavement is had is of great benefit to microtexture road pavement antiskid performance, grinds
Study carefully and show that big space mixture pavement, under the conditions of wet road, adds the sliding resistance run at high speed；Under the conditions of dry pavement,
In, low speed time, the sliding resistance of big space mixture pavement and traditional closely knit bituminous paving are suitable, and are running at high speed
Under, big space mixture pavement has higher sliding resistance；
(3) compared with the table compact structure of conventional pav road, big space mixture surface course has a lot of hole, when tire compresses air
Time, air can penetrate into surface layer hole, and because air has space to dissipate, compression ratio is low, therefore driving noise is little；It addition, vehicle mechanical fortune
Turning the noise that sent when diffusing to general road, its volume reflection is big；If big space mixture pavement, some noise meeting
Absorbing for road surface, its volume reflection reduces naturally, reduces vehicle noise effect；
The present invention, by optimizing deck installation structure, improves the functional requirement of surface layer, it is achieved the big space knot of bridge deck surfaces layer
Structure, improves the drainage performance on road surface, makes pavement skid resistance condition promote, it is achieved the effect of pavement structure absorbing sound and lowering noise, improves bridge floor
The comfortableness of pave-load layer, has the road surface service level of significant bridge deck pavement.Additionally, material Colophonium material involved in the present invention
Material uses rubber asphalt modified, uses waste and old rubber modified asphalt, had both improve bituminous texture layer durability, again to improving environment
There is positive role.
(4) accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
In figure, 1 open gradation big space asphalt surface course, 2 modified emulsifying asphalt tack coats, 3 modified pitch dense bitumens
Structure sheaf, 4 bituminous epoxies-rubble tack coat, 5 deck structrue layers.
(5) detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.
The basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention, but this
Enforcement and the protection of invention are not limited to this.
Embodiment: on the overhead cement concrete bridge deck in somewhere, implement deck installation structure of the present invention
(1) deck paving is combined as open gradation big space asphalt surface course 1 is 3cm rubber asphalt AR-OGFC13, and cutting optimal is modified
Colophonium dense bitumen structure sheaf 3 is 6cm modified pitch AC-20S, and surface layer 1 is big space pervious bed, and cutting optimal 3 is impermeable
Water layer, draining discharged by upper strata interlayer, and the biggest apparent gap layer 1 can absorb noise, thus reaches the purpose of noise reduction draining.
(2) voidage of open gradation big space asphalt surface course 1 typically can be controlled in 18-25%, for realizing noise reduction draining merit
Being provided that good precondition, rubber asphalt is the regeneration of junked tire simultaneously, also improves matrix pitch
Multinomial performance, is a kind of environmental protection friendly material.Cutting optimal modified pitch dense bitumen structure sheaf 3 construction technology is ripe, executes
Work is simple, can preferably ensure construction quality；
(3) open gradation big space asphalt surface course 1 uses basalt system to gather materials, and modified pitch dense bitumen structure sheaf 3 uses
Limestone system is gathered materials；
(4) bridge deck water-proof system is bituminous epoxy-rubble tack coat 4 and the combination of modified emulsifying asphalt tack coat 2.Floorings are adopted
With bituminous epoxy-breakstone water-proof binding layer 4, there is good high-temperature stability and crack resistance at low-temperature, superpower anti-fatigue performance
With excellent durability；Interlaminar bonding have employed modified emulsifying asphalt tack coat 2, and technology maturation is widely used, easy construction；
(5) process on deck structrue layer 5 surface is most important with the bonding of bitumen layer for floorings, it is therefore necessary at guarantee
Bridge floor after reason has certain construction depth, and keeps being dried, clean.
The construction technology of deck paving of the present invention and parameter request, including as follows according to structure sheaf order from bottom to up:
(1) bridge floor uses blasting treatment
Degree of depth 1-3mm is removed in sandblasting, undisguised rate >=20%, uneven due to interface, when the undisguised rate not reaching 20% one time
Carry out secondary sandblasting, until meeting technology requirement.There are uniform roughness and good cleannes in the surface postponed at sandblasting.Execute
Work ambient temperature requires: 5-40 DEG C, and relative air humidity is less than 90%, and sleety weather forbids construction.Bridge floor should be smooth, thrust
Should cut, in order to avoid affecting abrasive blast equipment the phenomenons such as leakage sand occur.Greasy dirt, rusty stain, foreign material, dust should be cleared up, and clean up, and prevent
Work progress pollutes abrasive sand ball.
(2) bituminous epoxy+crushed stone sealing construction
After floorings blasting treatment within 24 hours spread bituminous epoxy, clean with hair-dryer before spread.According to construction requirement
Formulate spread scheme with on-the-spot actual conditions, set relevant parameter, it is proposed that spread quantity is 0.8-1.2kg/m2, spray uniformly, meat
Observe survey to spread without substantially hoarding, trickle or leaking.Construct according to spread scheme, accomplish that spread is uniformly, continuously.For omitting or spraying
Less than position, corner, personnel should be arranged to mend in time and to spill.Longitudinal joint lap width is preferably 10-20cm, arranges special messenger to carry out at transverse joint
Reason.Only when bridge floor be dried, clean, temperature is higher than 10 DEG C, and confirms when construction period on the same day does not haves misty rain strong wind weather,
Can construct.Glue wheel the most uniformly dispensing particle diameter for anti-subsequent construction is the rubble of 5-10mm, it is proposed that coverage rate is that 40-60% is left
Right, it is desirable to rubble clean dried, after spreading paving, observation is without substantially hoarding, leaking and spread.
(3) rubber modified mixes AC-20S construction
Its mineral aggregate gradation of rubber modified mixes and technical standard require such as following table:
Modified pitch AC-20S compound mineral aggregate grading limit
Modified pitch AC-20S compound technical standard requirement
Its arrangement and method for construction such as conventional modified pitch construction technical requirement.
(4) modified emulsifying asphalt sealing construction
1. after bitumen layer cleaning, cleaning air-dry, with intelligent asphalt spreader spraying modified emulsified asphalt sticking layer oil.Modified emulsifying
It is 0.4kg/m that the sprinkling quantity of asphalt bridge floor water-proof tack coat is converted to pitch2-0.6kg/m2, it is suitable to select when spraying
Nozzle, dispense speed and fountain height and need to keep stable, should also be noted that the sprinkling of overlapping part, it is to avoid leakage is spilt or local spread mistake
Amount.
2. the sticking layer oil sprayed must be the most vaporific, is uniformly distributed into a thin layer in full-surfaced width degree, must not spill
Spend blank or into strips, also must not have accumulation.Spray to mend at not enough and spill, spray and should strike off at excess.AC-20S cutting optimal
In the case of causing construction problem because there is crack, asphalt filler should be injected at location of cracks, cover or Colophonium are set in advance
The impermeability layers such as matizhi sealing.
(5) rubber asphalt OGFC-13 construction
Its mineral aggregate gradation of rubber modified mixes and technical standard require such as following table:
Rubber asphalt AR-OGFC13 compound mineral aggregate grading limit
Rubber asphalt AR-OGFC13 compound technical standard requirement
Its arrangement and method for construction such as conventional modified pitch construction technical requirement.
(6) bridge deck water-proof and draining
1. horizontal, longitudinal gradient draining
Noise reduction draining mat formation precipitation mainly in pavement surfaces layer trickle, the flatness of cutting optimal on mat formation Quick drainage impact
The biggest.Deck paving cutting optimal should change according to the horizontal wall inscription of box beam top board, longitudinal gradient and box beam top plate thickness, carries out continuous print stand
Paving, to reach bridge deck drainage design requirement.
2. edge is anti-, drainage sunk well
The waterproof employing in horizontal wall inscription upstream bituminous epoxy is coated with limit, and brushing amount is as the criterion not producing trickling, and height is the most identical with pavement thickness, group
Become the water-proof system of paving structure, it is ensured that the water at upstream position of mating formation will not be along mating formation and seaming position between kerbstone oozes
People.Horizontal wall inscription downstream uses emulsified asphalt+prefabricated rhone scheme, prefabricated draining groove width 10cm, high 9cm.Rhone is executed mating formation
Work is installed after terminating, and rhone arranges and should flush with pavement surfaces, so that draining is unobstructed.
3. spilled water hole edge is anti-, draining
Spilled water hole and lid must be closely sealed, and must not have crack, sand holes and other affect the defect of intensity and use.Pavement construction
Time (especially Upper Pavement construction), it should employing plank hides to sentence in vent and ensures that paver and road roller can be carried out
Full width paves and rolls.After mating formation, spilled water hole leaf grating for down pipe should be slightly below bridge deck pavement, to ensure that bridge deck drainage is unimpeded.
4. anti-, draining before expansion joint
Expansion joint is installed and is used Rear mounted, it is desirable to fill concrete part is connected smooth-going with former bridge floor asphalt concrete pavement, no
Affect main bridge horizontal stroke, longitudinal gradient draining.
Claims (7)
1. the construction technology of a deck installation structure, it is characterised in that: described deck installation structure includes deck structrue layer,
Described deck structrue layer lays bituminous epoxy-rubble tack coat, modified pitch dense bitumen structure sheaf, modification the most successively
Emulsified asphalt tack coat and open gradation big space asphalt surface course；Construction technology comprises the steps: that (1) deck structrue layer is adopted
With blasting treatment, degree of depth 1-3mm, undisguised rate >=20% are removed in sandblasting；(2) after blasting treatment, deck structrue layer is cleaned up,
Spread bituminous epoxy in 24 hours, spread quantity is 0.8-1.2kg/m2, the then rubble of spread particle diameter 5-10mm, coverage rate is
40-60%；(3) construction of modified pitch dense bitumen structure sheaf such as conventional modified pitch form of construction work；(4) modified pitch level of confidentiality
Join bituminous texture layer clean, clean air-dry after, uniform spraying modified emulsified asphalt sticking layer oil, fountain height is converted to spring Colophonium and is
0.4-0.6kg/m2；(5) construction of open gradation big space asphalt surface course such as conventional modified pitch form of construction work.
The construction technology of deck installation structure the most according to claim 1, it is characterised in that: in step (1), sandblasting is constructed
Ambient temperature requires that, for 5-40 DEG C, relative air humidity is less than 90%.
The construction technology of deck installation structure the most according to claim 1, it is characterised in that: in step (3), modified pitch
Dense bitumen structure sheaf construction technical standard is, striking times is two sides each 75 times, and degree of stability is not less than 8.0KN, voidage
For 4.0-5.5%, Colophonium saturation is 65-75%, and residual stability is not less than 85%.
The construction technology of deck installation structure the most according to claim 1, it is characterised in that: in step (5), open gradation is big
The construction technical standard of space asphalt surface course is, marshal piece a size of Φ 101.6mm × 63.5mm, marshal piece hits
Real number of times is two-sided hitting real 50 times, voidage 18-25%, leakage analysis losing ＜ 0.3% at 180 DEG C, and at 20 DEG C, disperse loss in fort, Kent
＜ 20%.
The construction technology of deck installation structure the most according to claim 1, it is characterised in that: described deck transverse slope upstream is prevented
Hydromining bituminous epoxy waterproof layer, height is identical with pavement thickness, and horizontal wall inscription downstream uses emulsified asphalt to combine prefabricated rhone side
Case, prefabricated draining groove width 10cm, high 9cm.
The construction technology of deck installation structure the most according to claim 1, it is characterised in that: the big space of described open gradation drips
Blue or green surface layer is 3cm rubber asphalt AR-OGFC13, and voidage is 18-25%；Modified pitch dense bitumen structure sheaf is that 6cm changes
Property bitumen A C-20S.
The construction technology of deck installation structure the most according to claim 1, it is characterised in that: the big space of described open gradation drips
Blue or green surface layer uses basalt system to gather materials, and modified pitch dense bitumen structure sheaf uses limestone system to gather materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356303.6A CN105926456A (en) | 2016-05-26 | 2016-05-26 | Construction technology of bridge deck pavement structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610356303.6A CN105926456A (en) | 2016-05-26 | 2016-05-26 | Construction technology of bridge deck pavement structure |
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| CN105926456A true CN105926456A (en) | 2016-09-07 |
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ID=56842093
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| CN201610356303.6A Pending CN105926456A (en) | 2016-05-26 | 2016-05-26 | Construction technology of bridge deck pavement structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758812A (en) * | 2016-12-19 | 2017-05-31 | 同济大学 | A kind of UHPC pours orthotropic steel bridge deck combining structure and preparation method thereof |
| CN108797307A (en) * | 2018-06-14 | 2018-11-13 | 广州珠江黄埔大桥建设有限公司 | Modular steel bridge surface paving method |
| CN113174801A (en) * | 2021-04-30 | 2021-07-27 | 上海交通大学 | Durable silent downward-penetrating type pavement structure and construction method thereof |
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| CN203229873U (en) * | 2013-04-27 | 2013-10-09 | 西安公路研究院 | Low-noise bituminous pavement structure for bridge deck pavement layer |
| CN103469712A (en) * | 2013-09-30 | 2013-12-25 | 济南城建集团有限公司 | Method for paving anti-rut anti-skid pavement coating |
| JP2014163189A (en) * | 2013-02-27 | 2014-09-08 | Mitsubishi Plastics Inc | Waterproof member for floor slab, floor slab waterproof structure, and construction method for the same |
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| CN204418018U (en) * | 2015-01-05 | 2015-06-24 | 任丘市永基建筑安装工程有限公司 | A kind of Novel steel deck installation structure |
| CN104863032A (en) * | 2015-05-12 | 2015-08-26 | 上海市政工程设计研究总院（集团）有限公司 | Durable tunnel paving structure |
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Patent Citations (6)
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| JP2014163189A (en) * | 2013-02-27 | 2014-09-08 | Mitsubishi Plastics Inc | Waterproof member for floor slab, floor slab waterproof structure, and construction method for the same |
| CN203229873U (en) * | 2013-04-27 | 2013-10-09 | 西安公路研究院 | Low-noise bituminous pavement structure for bridge deck pavement layer |
| CN103469712A (en) * | 2013-09-30 | 2013-12-25 | 济南城建集团有限公司 | Method for paving anti-rut anti-skid pavement coating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106758812A (en) * | 2016-12-19 | 2017-05-31 | 同济大学 | A kind of UHPC pours orthotropic steel bridge deck combining structure and preparation method thereof |
| CN108797307A (en) * | 2018-06-14 | 2018-11-13 | 广州珠江黄埔大桥建设有限公司 | Modular steel bridge surface paving method |
| CN113174801A (en) * | 2021-04-30 | 2021-07-27 | 上海交通大学 | Durable silent downward-penetrating type pavement structure and construction method thereof |
| CN113174801B (en) * | 2021-04-30 | 2023-12-15 | 上海交通大学 | Durable mute downward-penetrating type pavement structure and construction method thereof |
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Application publication date: 20160907 |
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