CN110374017A - A kind of blackened remodeling method of cement bridge floor - Google Patents
A kind of blackened remodeling method of cement bridge floor Download PDFInfo
- Publication number
- CN110374017A CN110374017A CN201910499410.8A CN201910499410A CN110374017A CN 110374017 A CN110374017 A CN 110374017A CN 201910499410 A CN201910499410 A CN 201910499410A CN 110374017 A CN110374017 A CN 110374017A
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- Prior art keywords
- bridge floor
- blackened
- cement bridge
- cement
- remodeling method
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/18—Coherent pavings made in situ made of road-metal and binders of road-metal and bituminous binders
- E01C7/24—Binder incorporated as an emulsion or solution
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of blackened remodeling methods of cement bridge floor, blackened transformation is carried out in the longer cement bridge floor of the length of service, making test section, and bridge capacity is analyzed, ultra-thin wearing layer is combined with ordinary telescopic seam and expansion joints without seals respectively, by new material technology in conjunction with traditional technology means, and it is combined by design, material, construction, detection, assessment various aspects, solves the current blackened transform measure of cement bridge floor, and then improve road-ability, landscape and reduce driving noise, there is preferable operability.The invention is used for bridge road field.
Description
Technical field
The present invention relates to bridge road fields, more particularly to a kind of blackened remodeling method of cement bridge floor.
Background technique
Currently, being increasing with vehicles number, the traffic congestion situation in each city is increasingly severe, builds
Road infrastructure, or the existing infrastructure of transformation are the current main countermeasures for solving traffic jam issue.One of method
To build crossings on different level, from traffic is spatially separated, reduce or eliminate intersection due to lamp control bring time delays and
Traffic congestion, many big cities have currently possessed large-scale crossings on different level.Bridge, tunnel and surface road are grade separations
Chief component.Bituminous concrete and cement concrete are two kinds of forms of mainly mating formation of city intersection bridge, two kinds of bridge floors
Mating formation respectively has advantage and disadvantage: asphalt bridge deck is driven a vehicle, and noise is small, driving is steady, easy to repair；Cement concrete deck pavement bearing capacity is big,
It is high to be not susceptible to Water Damage, high-temperature stability.Currently, urban district especially midtown, the requirement for bridge floor road-ability
It is higher and higher, and with the increase of the volume of traffic, influence of the bridge maintenance to traffic is increasing, and therefore, newly building bridge is mated formation
Form, based on asphalt bridge floor.And the Urban Bridge being open to the traffic, there are a large amount of cement bridge floors.
Cement bridge floor has the shortcomings that driving vibration greatly and noise is big, for be completed be open to traffic using cement concrete deck pavement
Bridge, by cement deck pavement reconstruction be asphalt bridge floor it is " blackened " transformation, have biggish demand." blackened " transformation needs
The Paving Bituminous Concrete on the cement bridge floor of status, bearing capacity when bridge construction do not consider that the pitch newly increased is mixed
Solidifying soil load, therefore, the major obstacle of transformation is the influence for overlaying weight to bridge capacity, especially for the time that is open to traffic
Longer bridge.
The influence to structural bearing capacity is overlayed, is the maximum difference of cement bridge floor and " blackened " transformation of cement pavement, rule
Model defines the thickness of the Paving Bituminous Concrete surface layer on cement pavement, is not preferably less than 10cm for through street and trunk roads,
Other roads are not preferably less than 7cm.For the bridge for many years that are open to traffic, common asphalt concrete material is overlayed on cement bridge floor,
It increases weight and influence of the vibrating compacting to bridge structure in the presence of overlaying, the risk of two aspects.
Summary of the invention
The purpose of the present invention is to provide a kind of preferable operabilities, the practical blackened remodeling method of cement bridge floor.
The technical solution used in the present invention is:
A kind of blackened remodeling method of cement bridge floor comprising following steps:
S1: according to the actual conditions of cement bridge floor, calculating the increased weight of Paving Bituminous Concrete and ultra-thin wearing layer institute,
Then bridge capacity checking computations are carried out, determines and overlays type；
S2: making test section detects test section index；
S3: comprehensive making is carried out in cement bridge floor；
S4: being transformed the ordinary telescopic seam damaged in comprehensive paving process, and the ordinary telescopic seam of damage is transform as
Expansion joints without seals；
S5: open to traffic carries out comprehensive assessment by expert graded.
It is further used as the improvement of technical solution of the present invention, in step sl, carries out structure using finite element analysis software
Analysis, bearing capacity when checking normal use under limiting condition, carries out the indexs such as the bending resistance of pier stud, shearing resistance, crack and bias
Checking computations.
It is further used as the improvement of technical solution of the present invention, and in step s 2, Testing index includes flatness, friction system
Number, construction depth, infiltration coefficient, adhesion strength, driving noise, cost.
It is further used as the improvement of technical solution of the present invention, and the emulsified asphalt height of the ultra-thin wearing layer is 2-3mm, public
Maximum particle diameter is referred to as 5-7mm, minimum paving thickness 0.8-2.0cm, 15-20 μm of asphalt membrane thickness.
It is further used as the improvement of technical solution of the present invention, in step s 4, installs rubber strip in ordinary telescopic seam bottom,
Fashioned iron is installed in ordinary telescopic seam two sides, high temperature filler item is installed between two fashioned iron, is then installed at the top of ordinary telescopic seam
Steel plate, and it is laid with cementation of fissures mixture on the steel plate.
It is further used as the improvement of technical solution of the present invention, and in step s 5, expert graded refers to from technical indicator, economy
Mark, the aspect of social benefit index three are assessed, expert graded include determine evaluation index, determine each index weights,
Giving a mark for each index, calculating each index includes the score and total score after weight.
Beneficial effects of the present invention: this blackened remodeling method of cement bridge floor, the longer cement bridge floor of the length of service into
The blackened transformation of row, making test section, and bridge capacity is analyzed, by ultra-thin wearing layer respectively with ordinary telescopic seam and
Expansion joints without seals are combined, by new material technology in conjunction with traditional technology means, and by design, material, construction, detection,
It assesses various aspects to combine, solves the current blackened transform measure of cement bridge floor, and then improve road-ability, landscape and subtract
It drives a vehicle less noise, there is preferable operability.
Specific embodiment
The present invention is the blackened remodeling method of cement bridge floor comprising following steps:
S1: according to the actual conditions of cement bridge floor, calculating the increased weight of Paving Bituminous Concrete and ultra-thin wearing layer institute,
Then bridge capacity checking computations are carried out, determines and overlays type.
S2: making test section detects test section index；
S3: comprehensive making is carried out in cement bridge floor；
S4: being transformed the ordinary telescopic seam damaged in comprehensive paving process, and the ordinary telescopic seam of damage is transform as
Expansion joints without seals；
S5: open to traffic carries out comprehensive assessment by expert graded.
Specifically, the blackened transformation of current cement bridge floor both at home and abroad, overlaying material, there are mainly of two types: 10cm pitch
Both transformation target may be implemented in concrete and ultra-thin wearing layer.Asphalt concrete has performance stabilization, construction equipment
And the advantages of technical maturity, but weight is big, influence of the vibrating compacting to bridge is big.The emulsified asphalt of the ultra-thin wearing layer is high
Degree is 2-3mm, and nominal maximum particle diameter is 5-7mm, minimum paving thickness 0.8-2.0cm, 15-20 μm of asphalt membrane thickness.Ultra-thin mill
Consumption layer weight gain is small, static pressure technique is small to Bridge Influence, speed of application is fast, but as new material, performance is set it is still necessary to examine, construct
Standby and technique is more demanding.Analysis overlays two kinds of materials, the influence to bridge capacity, to guarantee bridge knot on cement bridge floor
The safety of structure carries out structural analysis, checking computations using finite element analysis software according to existing highway bridge design and construction technique data
Bearing capacity when normal use under limiting condition.To bending resistance, shearing resistance, crack and the bias etc. of various superstructure types and pier stud
Index is checked, and examines whether it meets specification and requirement.In the present embodiment according to the comparison to two kinds of materials, logical
Ultra-thin wearing layer is overlayed on the cement bridge floor of vehicle many years, there is lesser weight gain and construction infection, compares 10cm bituminous concrete
More preferably.
Making test section, ultra-thin wearing layer mainly have ultra-thin pitch, thickness about 2cm, epoxy resin, thickness about 0.5cm two
Kind of material, before extensive construction, making test section, and index is detected, to examine and compare their service performance.
Testing index includes: flatness, coefficient of friction, construction depth, infiltration coefficient, adhesion strength, driving noise, cost.According to knot
Fruit, in the present embodiment, ultra-thin pitch have preferable flatness, reduction noise result preferable, from raising comfort,
Better than epoxy resin.So selecting ultra-thin asphalt material as paver.
After the completion of extensive making, need to be transformed the ordinary telescopic seam of damage, to guarantee the row after overlay surface layer
Vehicle comfort.Current there are two types of modes, are changed to ordinary telescopic seam and transform expansion joints without seals as.Specifically, in ordinary telescopic
It stitches bottom and rubber strip is installed, fashioned iron is installed in ordinary telescopic seam two sides, high temperature filler item is installed between two fashioned iron, then general
Steel plate is installed at the top of logical expansion joint, and is laid with cementation of fissures mixture on the steel plate.Expansion joints without seals are compared for ordinary telescopic seam, tool
There is following advantage: forming one with deck paving, there is good globality and comfort, excellent noise reduction effect, without being dug
Except construction, to be stitched relative to ordinary telescopic, expense reduces about 40%, and construction rapidly and efficiently reduces manpower and material resources, and it is impermeable, significantly
Improve the infiltration situation of ordinary telescopic seam.According to testing result, ultra-thin wearing layer is combined with expansion joints without seals, driving noise compared with
The combination of ultra-thin wearing layer and ordinary telescopic seam, reduces by 15%, has preferable noise reduction effect.
It is detected and is compared with various forms of pavement structures of same time making, to examine ultra-thin wearing layer new material
Service performance.The pavement structure form of comparison includes that cement bridge floor overlays ultra-thin wearing layer, asphalt bridge floor overlays ultra-thin abrasion
Layer, steady layer of water overlay SMA, cement bridge floor overlays SMA etc..Testing index includes: flatness, coefficient of friction, construction depth, infiltration
Coefficient, adhesion strength, driving noise.
Using expert graded, comprehensive assessment is carried out to ultra-thin mill layer and expansion joints without seals, expert is finishing watching scene and phase
After the data such as design, construction and the detection of pass, is given a mark and assessed to material.Evaluation index includes that technical indicator, economy refer to
Mark and social benefit index.For ultra-thin wearing layer, technical indicator includes flatness, pavement seepage performance, adhesive property, anti-noise
Performance etc.；Economic indicator includes project cost and maintenance cost etc.；Social benefit index includes environment influence, visual effect and row
Vehicle comfort etc..For expansion joints without seals, technical indicator includes with former superelevation of highway surface, permeability performance, noiseproof feature etc.；Economy refers to
Mark includes project cost and maintenance cost etc.；Social benefit index includes environment influence, visual effect and road-ability etc..Specially
Family's scoring is divided into following steps: determining evaluation index, the weight for determining each index, gives a mark, calculates for each index
Each index includes the score and total score after weight.By comprehensive assessment, examines two kinds of new materials whether to reach specification and want
Summation requirement, summarizes their advantage or deficiency, proposes area for improvement, offers reference and refers to for later application
It leads.Following table is expert graded example summary sheet:
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of spirit, these equivalent variation or replacement are all contained in the application right
It is required that in limited range.
Claims (6)
1. a kind of blackened remodeling method of cement bridge floor, it is characterised in that: the following steps are included:
S1: according to the actual conditions of cement bridge floor, the increased weight of Paving Bituminous Concrete and ultra-thin wearing layer institute is calculated, then
Bridge capacity checking computations are carried out, determines and overlays type；
S2: making test section detects test section index；
S3: comprehensive making is carried out in cement bridge floor；
S4: being transformed the ordinary telescopic seam damaged in comprehensive paving process, the ordinary telescopic seam of damage is transform as seamless
Expansion joint；
S5: open to traffic carries out comprehensive assessment by expert graded.
2. the blackened remodeling method of cement bridge floor according to claim 1, it is characterised in that: in step sl, using having
Finite element analysis software carry out structural analysis, check normal use when limiting condition under bearing capacity, to the bending resistance of pier stud, shearing resistance,
The indexs such as crack and bias are checked.
3. the blackened remodeling method of cement bridge floor according to claim 1, it is characterised in that: in step s 2, detection refers to
Mark includes flatness, coefficient of friction, construction depth, infiltration coefficient, adhesion strength, driving noise, cost.
4. the blackened remodeling method of cement bridge floor according to claim 1, it is characterised in that: the cream of the ultra-thin wearing layer
Change pitch height is 2-3mm, and nominal maximum particle diameter is 5-7mm, minimum paving thickness 0.8-2.0cm, asphalt membrane thickness 15-20 μ
m。
5. the blackened remodeling method of cement bridge floor according to claim 1, it is characterised in that: in step s 4, common
Rubber strip is installed in expansion joint bottom, installs fashioned iron in ordinary telescopic seam two sides, high temperature filler item is installed between two fashioned iron, then
Steel plate is installed at the top of ordinary telescopic seam, and is laid with cementation of fissures mixture on the steel plate.
6. the blackened remodeling method of cement bridge floor according to claim 1, it is characterised in that: in step s 5, expert beats
Point-score is assessed in terms of technical indicator, economic indicator, social benefit index three, and expert graded includes determining that assessment refers to
Marking, determine each index weights, giving a mark for each index, calculating each index includes the score and total score after weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499410.8A CN110374017A (en) | 2019-06-11 | 2019-06-11 | A kind of blackened remodeling method of cement bridge floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910499410.8A CN110374017A (en) | 2019-06-11 | 2019-06-11 | A kind of blackened remodeling method of cement bridge floor |
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| Publication Number | Publication Date |
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| CN110374017A true CN110374017A (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910499410.8A Pending CN110374017A (en) | 2019-06-11 | 2019-06-11 | A kind of blackened remodeling method of cement bridge floor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281569A (en) * | 2020-12-08 | 2021-01-29 | 王壹帆 | Method for controlling reflection cracks of asphalt concrete overlay of cement concrete pavement |
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| JPH10266133A (en) * | 1997-03-21 | 1998-10-06 | Takara Giken Kk | Reinforcing structure of highway bridge |
| JP2014105426A (en) * | 2012-11-22 | 2014-06-09 | Tokyo Fabric Kogyo Kk | Expansion device for road bridge joint part, and water cut-off method |
| CN104831598A (en) * | 2015-04-21 | 2015-08-12 | 成军 | Construction method for reconstruction of old cement pavement into asphalt concrete pavement |
| CN204570469U (en) * | 2015-04-17 | 2015-08-19 | 栾海 | A kind of seamless surface type bridge expanssion joint |
| CN204676416U (en) * | 2015-06-08 | 2015-09-30 | 大连理工大学 | A kind of expansion joints without seals |
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2019
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| JP2014105426A (en) * | 2012-11-22 | 2014-06-09 | Tokyo Fabric Kogyo Kk | Expansion device for road bridge joint part, and water cut-off method |
| CN204570469U (en) * | 2015-04-17 | 2015-08-19 | 栾海 | A kind of seamless surface type bridge expanssion joint |
| CN104831598A (en) * | 2015-04-21 | 2015-08-12 | 成军 | Construction method for reconstruction of old cement pavement into asphalt concrete pavement |
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| CN105350421A (en) * | 2015-09-28 | 2016-02-24 | 北京城建道桥建设集团有限公司 | Thin layer overlaying surface construction method suitable for pavement overhaul and intermediate maintenance and preventive conservation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112281569A (en) * | 2020-12-08 | 2021-01-29 | 王壹帆 | Method for controlling reflection cracks of asphalt concrete overlay of cement concrete pavement |
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Application publication date: 20191025 |