CN107974943A - A kind of road and bridge pavement construction method - Google Patents
A kind of road and bridge pavement construction method Download PDFInfo
- Publication number
- CN107974943A CN107974943A CN201711243442.9A CN201711243442A CN107974943A CN 107974943 A CN107974943 A CN 107974943A CN 201711243442 A CN201711243442 A CN 201711243442A CN 107974943 A CN107974943 A CN 107974943A
- Authority
- CN
- China
- Prior art keywords
- box beam
- road
- concrete
- construction method
- pavement construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
Abstract
The invention discloses a kind of road and bridge pavement construction method, including bent cap frame, it is characterised in that：The prefabricated bent cap lower portion embedded bar frame, then pass through concreting bent cap, while in the reinforcing bar of the pre-buried installation pinner in the top of bent cap, pinner is poured by pre-buried reinforcing bar, pinner bearing is installed in pinner upper surface middle part, and ensures that its installation is close during secondary；By being laid with first layer bitumen layer in concrete layer upper surface, and it is laid with second layer bitumen layer, so that the layering laying between the bitumen layer on upper strata and the bitumen layer of next time causes it when in use, the bitumen layer more consolidation of lower floor, so that its water resistance is stronger.
Description
Technical field
The present invention relates to bridge pavement technical field of construction, is specially a kind of road and bridge pavement construction method.
Background technology
Highway alignment passes through the waters such as rivers, bay, lake, reservoir, feed ditch, or across the big deep valley area of height difference, or
Across other traffic routes, in order to keep the traffic moving, needs build a bridge.Bustling urban district needs to set to be made of overpass sometimes
Viaduct.Other hill path line is great because digging subgrade engineering, or because geological structure is unstable, or because protecting landscape, sometimes
Overpass is built, without constructing roadbed.It is general that the high water level that can lead expected maximum flood off safely is set across the bridge of rivers
Bridge.In the river small stream of seasonal current, as the volume of traffic is small, low water level bridge (also known as overflow bridge) is set sometimes or crosses water to reduce investment outlay
Road surface.The river surface of bridge construction is not easy in the lake surface of the broad depth of water and a period of time can set up pontoon bridge.Build bridge on navigable river, as two sides are put down
It is smooth, when bridge floor is not easy to raise, frequently with can move or elevated movable bridge.When highway and railway or highway intersect
When, in order to avoid level-crossing can build cloverleaf intersection.Viaduct can be upper straddle type when primary highway passes through secondary road
Or underpass type.When acrossing highway, the highway of heavy traffic and street, for the safe passing of pedestrian, it can repair
Pedway is built, across highway above highway
Bridges in highway engineering includes bridge main body (i.e. bridge superstructure and bridge substructure) engineering and bridge location is overall
In attached job facilities.Attached job facilities are very much, such as in order to which the shore protection, the trraning pole that keep river at bridge location to stablize are adjusted
Harness the river the structure of stream, what end of the bridge was connected with highway lead the way access bridge, the railing that anti-wheel collides on bridge floor, ensures pedestrains safety
Navigation marker and bridge floor lighting apparatus etc. under livery, bridge on pedestrian guardrail, and bridge.In addition, positioned at earthquake territory bridge also
Equipped with vibration abatement, cable-stayed bridge hoist cable guy rope is equipped with the attachment device of windproof dynamic resonance, and movable bridge is equipped with mechanical device, floating ice
Bridge on river is equipped with icebreaking device etc..Therefore the same Structural Engineering of science of bridge building, foundation engineering, hydraulic engineering and traffic engineering have
Close, and it is related with subjects such as meteorology, the hydrology, engineering geology, construction material, measuring technology, engineering machinery, aesthetics, environmental protections,
It is a comprehensive very strong engineering technology.And still have much in the occupation mode for bridge pavement in the prior art
Defect is for example：
1. the water resistance on bridge pavement of the prior art road surface in construction is very poor, for a long time in use, its pitch
So that pit easily occurs in its road surface after layer inside is permeable, so can not meet needed for the prior art.
2. during bridge pavement of the prior art construction often due to it is long in time limit in its work progress and in construction its
It is excessively numerous and diverse during the construction of bent cap, and when constructing to pinner, that the deviation of position is excessive is empty between box beam when causing subsequent construction
Gap is difficult to control, causes the slight of its pontic to cross bottom, so can not meet needed for the prior art.
The content of the invention
It is an object of the invention to provide a kind of road and bridge pavement construction method, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the present invention provides following technical solution：A kind of road and bridge pavement construction method, including lid
Beam frame, box beam and put and to survey an elevation, it is characterised in that：The prefabricated bent cap lower portion embedded bar frame, then passes through
Concreting bent cap, at the same the top of bent cap it is pre-buried installation pinner reinforcing bar, pour pinner by pre-buried reinforcing bar, padding
Stone upper surface middle part installs pinner bearing, and ensures that its installation is close during secondary；The box beam carries out being lifted on pinner
On bearing, gap is left between box beam side, box beam leaves gap between both ends, passes through reinforcing bar to the gap between box beam side
The splicing of wet seam is carried out with concrete, and is spliced in the gap at box beam both ends by middle cross beam with concrete, then
The box beam of two flanks is mutually installed into guardrail from side upper surface；First in box beam upper surface comparison diagram during the pavement construction
Paper carries out putting a survey elevation, and 5m spacing is kept between each point, and reinforcing bar is stamped on the point put, and reinforcing bar is highly high to survey
The height that journey is surveyed, places reinforced mesh on reinforcing bar, stringent when pouring to box beam upper surface casting concrete after the completion of placement
Poured according to surveyed elevation, wait and be laid with first layer pitch in concrete upper surface after concrete coagulation, to the after laying
One layer of pitch is compacted using road roller, ensures pavement compaction in process of deployment and smooth while first layer pitch thickness is
8cm, is then cooled down first layer pitch with weather by environment temperature, then smears waterproof in first layer pitch upper face
Coating, re-lays second layer pitch and carries out compaction treatment using road roller again, ensures that it is laid with uniform outer surface and puts down in process of deployment
6cm after whole while second layer pitch thickness, finally carries out cooling treatment according to environment to second layer pitch.
Preferably, the box beam be lifted on pinner bearing, leaves gap between box beam side, between box beam both ends
Gap is left, carries out the splicing of wet seam with concrete by reinforcing bar to the gap between box beam side, and at box beam both ends
Gap spliced by middle cross beam with concrete, the box beams of two flanks is mutually then installed into guardrail from side upper surface.
Preferably, first in box beam upper surface, contrast drawing carries out putting a survey elevation during the pavement construction, and
5m spacing is kept between each point, reinforcing bar is stamped on the point put, reinforcing bar is highly to survey the height that elevation is surveyed, on reinforcing bar
Reinforced mesh is placed, to box beam upper surface casting concrete after the completion of placement, is poured when pouring in strict accordance with surveyed elevation,
First layer pitch is laid with concrete upper surface after wait concrete coagulation, first layer pitch is carried out using road roller after laying
It is compacted, ensures pavement compaction in process of deployment and smooth while first layer pitch thickness is 8cm, then by environment temperature and gas
Time is cooled down first layer pitch, is then smeared water-repellent paint in first layer pitch upper face, is re-layed second layer pitch again
Compaction treatment is carried out using road roller, ensures that it is laid with that uniform outer surface is smooth while after second layer pitch thickness in process of deployment
6cm, finally carries out cooling treatment according to environment to second layer pitch.
Preferably, between the gap holding 30-20cm between the box beam side and both ends.
Preferably, the intensity for pouring concrete used in pinner it is identical with concrete strength used in bent cap be C30 and
Its concrete mix is：0.38:1:1.11:2.72.
Preferably, the water-repellent paint is SBS modified-high polymer Emulsificated asphalt water-proof painting materials.
Preferably, the reinforced mesh smears cement to keep it from getting rusty using preceding with putting reinforcing bar a little used to it
Slurry.
Preferably, it is described to prevent to ensure that box beam upper surface is cleaned before bar-mat reinforcement after-pouring concrete, while pouring
The situation of concrete feed supplement is avoided to occur during concrete.
Preferably, it must ensure that concrete upper surface is cleaned before the laying first layer pitch.
Preferably, box beam upper surface is polished before casting concrete in the box beam upper surface.
Preferably, need to carry out wharf's pavement quality to concrete after the concreting of the box beam upper surface.
Preferably, the box beam side needs to carry out tensioning processing to box beam before wet seam is carried out.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, the present invention is by being laid with first layer bitumen layer in concrete layer upper surface, and is laid with second layer bitumen layer, makes
The layering between the bitumen layer on upper strata when in use and the bitumen layer of next time is obtained to be laid with so that it, the bitumen layer of lower floor is more stepped up
It is real, so that its water resistance is stronger.
2nd, the present invention passes through the embedded bar when pouring bent cap so that when the pinner to bent cap upper surface is pouring
Position is more accurate, so as to avoid using when there is pinner position offset subsequent construction had an impact.
Brief description of the drawings
Fig. 1 is the Coping Construction flow of the present invention；
Fig. 2 is the box girder construction flow of the present invention；
Fig. 3 is the pavement construction flow of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
Refering to Figure 1, the present invention provides a kind of technical solution：A kind of road and bridge pavement construction method, including lid
Beam frame, it is characterised in that：The prefabricated bent cap lower portion embedded bar frame, then by concreting bent cap, together
When the top of bent cap it is pre-buried installation pinner reinforcing bar, pour pinner by pre-buried reinforcing bar, pinner upper surface middle part install
Pinner bearing, and ensure that its installation is close during secondary, used in the intensity for pouring concrete used in pinner and bent cap
Concrete strength is identical to be C30 and its concrete mix is：0.38:1:1.11:2.72.
As shown in Fig. 2, the box beam be lifted on pinner bearing, gap, box beam both ends are left between box beam side
Between leave gap, the splicing of wet seam is carried out by reinforcing bar and concrete to the gap between box beam side, and in box beam
The gap at both ends is spliced by middle cross beam with concrete, and then the box beam of two flanks is mutually installed from side upper surface and is protected
Column, the box beam side needs to carry out tensioning processing to box beam before wet seam is carried out, between the box beam side and both ends
Gap is kept between 30-20cm.
As shown in figure 3, first in box beam upper surface, contrast drawing carries out putting a survey elevation during the pavement construction, and
And 5m spacing is kept between each point, reinforcing bar is stamped on the point put, reinforcing bar is highly to survey the height that elevation is surveyed, in reinforcing bar
Upper placement reinforced mesh, to box beam upper surface casting concrete after the completion of placement, is poured when pouring in strict accordance with surveyed elevation
Build, be laid with first layer pitch in concrete upper surface after wait concrete coagulation, road roller is used to first layer pitch after laying
It is compacted, ensures pavement compaction in process of deployment and smooth while first layer pitch thickness is 8cm, then by environment temperature
First layer pitch is cooled down with weather, then smears water-repellent paint in first layer pitch upper face, re-lays second layer drip
It is blue or green that compaction treatment is carried out using road roller again, ensure that it is laid with that uniform outer surface is smooth while second layer pitch thickness in process of deployment
6cm afterwards, finally carries out the second layer pitch cooling treatment according to environment, and the water-repellent paint is the emulsification drip of SBS modified-high polymers
Blue or green water-repellent paint, the reinforced mesh smear cement mortar to keep it from getting rusty using preceding with putting reinforcing bar a little used to it, institute
Stating must ensure that box beam upper surface is cleaned before preventing bar-mat reinforcement after-pouring concrete, while avoid concrete in casting concrete
The situation of feed supplement occurs, and must ensure that concrete upper surface is cleaned before the laying first layer pitch, the box beam upper surface exists
Box beam upper surface polish before casting concrete the box beam upper surface concreting after need to carry out concrete
Wharf's pavement quality, and spacing is maintained between 5-20cm between its plucking.
Operation principle：When in use,.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed, or further include as this process, method, article or equipment
Intrinsic key element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (12)
1. a kind of road and bridge pavement construction method, including bent cap frame, it is characterised in that：The prefabricated bent cap lower portion is pre-
Steel bar framework is buried, then by concreting bent cap, and meanwhile it is pre-buried in the reinforcing bar of the pre-buried installation pinner in the top of bent cap, process
Reinforcing bar pour pinner, pinner bearing is installed in pinner upper surface middle part, and ensure that during secondary its installation is close.
A kind of 2. road and bridge pavement construction method according to claim 1, it is characterised in that：The box beam is lifted
On pinner bearing, gap is left between box beam side, box beam leaves gap between both ends, and the gap between box beam side is passed through
Cross reinforcing bar and the splicing of wet seam is carried out with concrete, and spelled in the gap at box beam both ends by middle cross beam with concrete
Connect, the box beam of two flanks is mutually then installed into guardrail from side upper surface.
A kind of 3. road and bridge pavement construction method according to claim 2, it is characterised in that：The pavement construction process
In first in box beam upper surface, contrast drawing put and to survey an elevation, and 5m spacing is kept between each point, in the point put
On stamp reinforcing bar, reinforcing bar highly to survey the height that elevation is surveyed, places reinforced mesh, in box beam after the completion of placement on reinforcing bar
Surface casting concrete, is poured when pouring in strict accordance with surveyed elevation, in concrete upper surface after wait concrete coagulation
Be laid with first layer pitch, first layer pitch is compacted using road roller after laying, in process of deployment guarantee pavement compaction and
Smooth while first layer pitch thickness is 8cm, then cools down first layer pitch with weather by environment temperature, then exists
First layer pitch upper face smears water-repellent paint, re-lays second layer pitch and carries out compaction treatment using road roller again, was laid with
Ensure that it is laid with that uniform outer surface is smooth while 6cm after second layer pitch thickness in journey, finally according to environment to second layer pitch into
Row cooling treatment.
A kind of 4. road and bridge pavement construction method according to claim 2, it is characterised in that：The box beam side and two
Gap between end is kept between 30-20cm.
A kind of 5. road and bridge pavement construction method according to claim 1, it is characterised in that：It is described to pour used in pinner
The intensity of concrete is identical with concrete strength used in bent cap to be C30 and its concrete mix is：0.38:1:1.11:
2.72。
A kind of 6. road and bridge pavement construction method according to claim 3, it is characterised in that：The water-repellent paint is
SBS modified-high polymer Emulsificated asphalt water-proof painting materials.
A kind of 7. road and bridge pavement construction method according to claim 3, it is characterised in that：The reinforced mesh is with putting
Point reinforcing bar used smears cement mortar to keep it from getting rusty using preceding to it.
A kind of 8. road and bridge pavement construction method according to claim 3, it is characterised in that：It is described prevent bar-mat reinforcement after
It must ensure that box beam upper surface is cleaned before casting concrete, while avoid the situation of concrete feed supplement from sending out in casting concrete
It is raw.
A kind of 9. road and bridge pavement construction method according to claim 3, it is characterised in that：The laying first layer drip
It must ensure that concrete upper surface is cleaned before green grass or young crops.
A kind of 10. road and bridge pavement construction method according to claim 3, it is characterised in that：The box beam upper surface
Polish before casting concrete box beam upper surface.
A kind of 11. road and bridge pavement construction method according to claim 3, it is characterised in that：The box beam upper surface
Concreting after need to concrete carry out wharf's pavement quality.
A kind of 12. road and bridge pavement construction method according to claim 2, it is characterised in that：The box beam side exists
Need to carry out tensioning processing to box beam before carrying out wet seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243442.9A CN107974943A (en) | 2017-11-30 | 2017-11-30 | A kind of road and bridge pavement construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243442.9A CN107974943A (en) | 2017-11-30 | 2017-11-30 | A kind of road and bridge pavement construction method |
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| Publication Number | Publication Date |
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| CN107974943A true CN107974943A (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711243442.9A Pending CN107974943A (en) | 2017-11-30 | 2017-11-30 | A kind of road and bridge pavement construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344316A (en) * | 2019-07-16 | 2019-10-18 | 中铁建设集团有限公司 | A kind of ramp bridge bar construction and its construction method |
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