CN105908618B - A kind of mountable double-deck transition slab at bridge head structure and construction method - Google Patents
A kind of mountable double-deck transition slab at bridge head structure and construction method Download PDFInfo
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- CN105908618B CN105908618B CN201610231166.3A CN201610231166A CN105908618B CN 105908618 B CN105908618 B CN 105908618B CN 201610231166 A CN201610231166 A CN 201610231166A CN 105908618 B CN105908618 B CN 105908618B
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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
- E01D19/00—Structural or constructional details of bridges
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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
Abstract
The present invention relates to a kind of mountable double-deck transition slab at bridge head structure, it is characterised in that：Structure includes top buck plate, bottom buck plate, deformation adjustment system, compatibility of deformation plate, pouch supporter；Deformation adjustment system is located between top buck plate and bottom buck plate, including bar shaped top plate, bar shaped bottom plate, skewed horizontal load bar, double-action jack, connecting hinge, vertical supporting body, vertical baffle plate, discrete material obturator, Deformation control pipe；Compatibility of deformation plate is located at top buck plate and outside deck installation structure, pavement structure intersection；Pouch supporter is located between bar shaped top plate and bar shaped bottom plate, including pouch filler, pouch madjack pipe, bag structure layer.The present invention can not only realize the rapid construction of transition slab at bridge head, and can effective prevention and control end of the bridge disease generation.The invention also discloses the construction method of above-mentioned mountable double-deck transition slab at bridge head structure.
Description
Technical field
The present invention relates to a kind of mountable double-deck transition slab at bridge head structure and construction method, belong to science of bridge building field, be applicable
In newly-built or reconstruction road end of the bridge cement concrete attachment strap structure design and construction engineering.
Background technology
Problem of bumping at bridge-head is more universal in each standard highway, urban road that China has put into effect.The engineering is asked
The risk factor of topic can substantially be summarised as two aspects, one is bridge section and the differential settlement of embankment section are excessive, attachment strap is difficult
Fully to coordinate the relative settlement；The second is there is shortcoming in attachment strap structure design, it is impossible to fully coordinate the difference between adjacent structure
Deformation, the influence of reduction vehicular load.
A kind of existing Z-shaped transition slab at bridge head construction, including the Z-shaped attachment strap main body being arranged in being banketed after platform, Z shape attachment strap masters
Body includes upper plate, swash plate and the lower plate being sequentially connected from top to bottom, end of the upper plate away from swash plate and the vertical bridge in bridge main beam edge
To connection, though the construction can effectively solve the problem of attachment strap rigidity is mutated, attachment strap deformation adjustment space is limited, especially works as platform
When larger sedimentation and deformation occurs in back of the body backfill material, attachment strap is difficult to effectively control differential deformation.
A kind of existing bridgehead structures for being used to administer bumping at bridge-head, including abutment, beam slab, roadbed, road surface structare layer, end of the bridge
Attachment strap and bridge deck pavement；Transition slab at bridge head is located between roadbed and underlayment, and its one end is erected on abutment bracket；Basic unit and bridge
Provided with contracting seam between the platform platform back of the body, expansion joint is provided between Abutment Back and beam slab.The structure transition slab at bridge head uses underneath type, helps
In eliminate roadbed below close-table end lap come to nothing, the jump car problem of abutment and embankment joining place, but structure is difficult to reduce vehicle
Load is shaken to structural damage, it is impossible to which to transfiniting, deformation is effectively adjusted.
A kind of transition slab at bridge head, is made up of attachment strap, hinge, steel plate, sub- attachment strap and pile, and attachment strap constitutes stairstepping, is paving the way
During face, the material on road surface is additionally arranged on sub- attachment strap in which can continue.The structure makes road surface and attachment strap point echelon transition, though can be one
Determine to reduce the stress difference that settlement of foundation causes road surface and end of the bridge in degree, but the paving quality control difficulty of the structure
Greatly, it is impossible to which later stage compatibility of deformation control is carried out to linkage section.
In summary, targetedly attachment strap structure and applied although having been presented for some for problem of bumping at bridge-head in engineering
Work method, existing structure has actively meaning in terms of compatibility of deformation control, relative settlement stress coordination, seam disease prevention and control
Justice, but still hardly possible meets the requirement that differential deformation transfinites to attachment strap structure, it is impossible to later stage of attachment strap is deformed and adjusted into Mobile state, not
It is related to the overall anti-seismic problem of attachment strap structure.
In consideration of it, being effective prevention and control end of the bridge position disease, the utilization rate and engineering construction efficiency of existing building material are improved,
Needing invention one kind badly at present can effectively prevention and control transition slab at bridge head position disease, the influence of reduction vehicle vibration load, raising engineering construction
The mountable double-deck transition slab at bridge head structure and construction method of efficiency.
The content of the invention
Not only rapid construction but also the assembled of Bridgehead-Jumping Disease can have effectively been prevented and treated it is an object of the invention to provide a kind of
Double-deck transition slab at bridge head structure and construction method.
In order to realize above-mentioned technical purpose, present invention employs following technical scheme：
A kind of mountable double-deck transition slab at bridge head structure, it is characterised in that：Structure include top buck plate, bottom buck plate,
Deformation adjustment system, compatibility of deformation plate, pouch supporter；The lower surface of top buck plate sets deformation adjustment system top spacing
Groove；The lower surface of bottom buck plate is in circular arc, and upper surface sets deformation adjustment system lower limit groove, and lower surface is set
Abutment bracket link slot, grade beam link slot, connecting bolt lay groove through hole, grouting behind shaft or drift lining pipe；Deformation adjustment system is located at upper
Between portion's buck plate and bottom buck plate, respectively set a set of in the both sides of pouch supporter, often set includes bar shaped top plate, bar shaped bottom
Plate, skewed horizontal load bar, double-action jack, connecting hinge, vertical supporting body, vertical baffle plate, discrete material obturator, Deformation control
Pipe；Compatibility of deformation plate is located at top buck plate and outside deck installation structure, pavement structure intersection, and plate two ends set perpendicular respectively
Hole is passed through to steel plate and rivet；Pouch supporter is located between bar shaped top plate and bar shaped bottom plate, including pouch filler, pouch pressure
Slurry pipe, bag structure layer.
The bar shaped top plate and bar shaped bottom plate of the deformation adjustment system are respectively arranged on deformation adjustment system top limited impression
In deformation adjustment system lower limit groove, it is welded to connect with rigid reinforcing layer；Bar shaped top plate and bar shaped bottom plate and oblique branch
Strut is hinged by connection, and connecting hinge is welded to connect with bar shaped top plate, bar shaped bottom plate；The two ends of bar shaped bottom plate and double acting thousand
The piston rod on jin top is welded to connect.
The vertical supporting body of the deformation adjustment system is located between top buck plate and bottom buck plate, and positioned at deformation
The outside of regulating system top limited impression and deformation adjustment system lower limit groove, using pressure jack or rubber support
Or shaped steel bearing or the prefabricated bearing of armored concrete, it is respectively provided with cushion rubber layer in the upper and lower surface of vertical supporting body；
Vertical baffle plate is set between vertical supporting body and deformation adjustment system top limited impression, sets and dissipates on vertical supporting body periphery
Body material obturator.
The top buck plate and bottom buck plate use reinforced concrete structure, on top the lower surface of buck plate and
The rigid reinforcing layer of upper surface laying of bottom buck plate, rigid reinforcing layer is connected with top buck plate, bottom buck plate by rivet
Connect.
The cavity of the pouch supporter is formed by bag structure layer suture, and its interior filling pouch filler simultaneously lays pouch
Madjack pipe；The cross section of pouch supporter is rectangular or ellipse, upper and lower surface respectively with bar shaped top plate, bar shaped bottom plate
Paste connection；Pouch filler uses high polymer material or discrete material；Bag structure layer uses the geotextiles of permeable watertight
Material.
The compatibility of deformation plate end sets vertical steel plate, and compatibility of deformation plate is overall using same steel plate with vertical steel plate
Rolling is welded into using two blocks of steel platesShape；The pavement structure or deck paving with outside are preset on compatibility of deformation plate
The rivet of structure connection passes through hole；It is oblique with vertical steel plate along the welding of plate length direction certain intervals in the vertical insertion end of vertical steel plate
The anti-punching shear bar of friendship.
Abutment bracket link slot cross section is inShape, grade beam link slot cross section is inShape；In compatibility of deformation
Plate, abutment bracket link slot, the lower surface of grade beam link slot set rubber shock-absorbing layer, and rubber shock-absorbing layer uses artificial rubber or day
Right rubber.
Grouting behind shaft or drift lining pipe uses the pvc pipe or steel pipe of side-wall hole, and one end closing, the other end is connected with outside Grouting Pipe, edge
Lay in road Cross Section direction.
A kind of mountable double-deck transition slab at bridge head structure, it is characterised in that structure includes following construction procedure：
1) preparation of construction：Pavement structure, deck installation structure construction are carried out, and according to the requirement of transition slab at bridge head size to both sides
Pavement structure, deck installation structure cut；Remove impurity, the foreign matter of structural connection position；
2) assembly parts are prefabricated with being connected：According to the prefabricated top buck plate of design requirement, bottom buck plate, deformation adjustment system
System, compatibility of deformation plate, pouch supporter；On top, the upper surface of the lower surface of buck plate and bottom buck plate sets rigid reinforcement
Layer, and be connected firmly by rivet with top buck plate, bottom buck plate；Vertical baffle plate is connected firmly with bottom buck plate；
In the upper and lower surface of vertical supporting body, cushion rubber layer is set；
3) bottom buck plate is installed：Rigid reinforcement is laid successively in the lower surface of abutment bracket link slot, grade beam link slot
Layer and rubber shock-absorbing layer, lay in grouting behind shaft or drift lining pipe and grouting behind shaft or drift lining pipe are laid in groove, first overlay the platform back of the body in bottom buck plate lower surface
Backfill material, then by bottom buck plate integral hoisting to setting position, finally by connecting bolt by bottom buck plate and abutment ox
Leg, grade beam are connected firmly；
4) deformation adjustment system is set：Vertical supporting body is installed on the outside of vertical baffle plate, and fills discrete material obturator,
Lay Deformation control pipe；Double-action jack and bar shaped are laid in the deformation adjustment system lower limit groove of bottom buck plate
Bottom plate；In bar shaped bottom plate upper surface, connecting hinge, pouch supporter are set；Connecting hinge is connected with skewed horizontal load bar；In pouch branch
Support body top sets bar shaped top plate；
5) top buck plate is installed：Discrete material obturator is first supplemented on the outside of vertical baffle plate, makes discrete material obturator
Middle part be slightly above both sides；Top buck plate is set in pouch supporter, vertical supporting body upper surface again；
6) plate bottom post jacking：By grouting behind shaft or drift lining pipe into the back filling behind abutment material of bottom buck plate bottom mud jacking, fill bottom
The space of buck plate bottom；
7) compatibility of deformation plate is installed：Buck plate vertical elevation in top, which is checked, to be met after design requirement, first in compatibility of deformation plate
Lower surface pastes rubber shock-absorbing layer, and compatibility of deformation plate then is arranged on into top buck plate and outside deck installation structure, road surface
Structure intersection, and compatibility of deformation plate and outboard structure are connected firmly using rivet；
8) buck plate elevation in top is adjusted：After road puts into effect, according to the differential deformation situation in section before and after attachment strap, lead to
Vertical supporting body, the vertical elevation of double-action jack synchronous adjustment top buck plate are crossed, it is met road evenness requirement；
9) grouting behind shaft or drift lining is constructed：It is right respectively by pouch madjack pipe, Deformation control pipe after the completion of the buck plate elevation adjustment of top
Pouch filler, discrete material obturator slip casting, complete the elevation adjustment of hazard to bridge's pier, subsequent repeat step 7)；
10) follow-up maintenance and buck plate are changed：After the completion of the adjustment of elevation, if before and after attachment strap section differential deformation feelings
Condition need to synchronize replacement again above code requirement to top buck plate, pouch supporter, discrete material obturator, repeat
Step 4)~step 7).
The stroke of double-action jack 6 is coordinated with deformation space, during the Pass line adjustment of top buck plate 1, the side of bar shaped bottom plate 4
Double-action jack 6 apply pressure to bar shaped top plate 3, synchronous apply to bar shaped top plate 3 of the double-action jack 6 of opposite side is drawn
Power, while adjusting the top surface absolute altitude of vertical supporting body (8).The invention has the characteristics that：
(1) double-deck attachment strap is simple in construction, can meet poor between the influence of reduction vehicle vibration load, control bridgehead structures thing simultaneously
Mutation shape, the requirement for shortening the engineering construction duration.
(2) structure becomes vertical between top buck plate and bottom buck plate by drawing and pressing type jack, vertical supporting structural reform
Distance, while changing Loose filling bodies density by Deformation control pipe, so as to realize the lifting to top buck plate, decline, indulge
Slope is adjusted.
(3) after after bridge platform back of the body stabilization, the mud jacking into pouch supporter, Loose filling bodies forms permanent support
Body, improves the stress performance of structure.
(4) when double-deck attachment strap structure is replaced, the top buck plate in structure, pouch supporter need to only be replaced, other knots
Structure body is continued to employ, and reduces maintenance construction to human and material resources, the requirement of duration.
Brief description of the drawings
Fig. 1 is a kind of mountable double-deck transition slab at bridge head structural profile schematic diagram of the invention；
Fig. 2 is a kind of mountable double-deck transition slab at bridge head structure construction flow charts of Fig. 1.
In figure：1- tops buck plate, 2- bottoms buck plate, 3- bar shaped top plates, 4- bar shaped bottom plates, 5- skewed horizontal load bars, 6-
Double-action jack, 7- connecting hinges, 8- vertical supporting bodies, the vertical baffle plates of 9-, 10- discrete material obturators, 11- Deformation controls
Pipe, 12- pouch fillers, 13- bag structures layer, 14- pouch madjack pipes, 15- deformation adjustment systems top limited impression, 16-
Deformation adjustment system lower limit groove, 17- abutment bracket link slots, 18- grade beam link slots, 19- connecting bolts pass through hole,
20- grouting behind shaft or drift lining pipe laying groove, 21- rigidity reinforcing layers, 22- rivets, 23- cushion rubber layers, the vertical steel plate link slots of 24-,
25- transverse direction steel plates lay groove, and 26- compatibility of deformation plates, the vertical steel plates of 27-, 28- rivets pass through hole, 29- anti-punching shear bars, 30- rubber
Buffer layer, 31- connecting bolts, 32- grouting behind shaft or drift lining pipes, 33- deck installation structures, 34- pavement structures, 35- back filling behind abutment material, 36-
Abutment bracket, 37- embankment fill materials, 38- grade beams, 39- pouch supporters.
Specific embodiment
Embodiments of the invention are described in further detail below in conjunction with brief description of the drawings, but the present embodiment is not used to limit
The system present invention, every similar structure using the present invention and its similar change, all should be included in protection scope of the present invention.
The design and construction technical requirements of deck installation structure, the design and construction technical requirements of pavement structure, embankment are filled out
The design and construction technology for building construction technical requirement, back filling behind abutment construction technical requirement, top buck plate and bottom buck plate will
Ask, reinforcement welding or colligation construction technical requirement, discrete material fill construction technical requirement, rear pressure drop construction technical requirement etc.,
Repeated no more in present embodiment, emphasis illustrates that the present invention relates to the embodiment of structure.
Fig. 1 is a kind of mountable double-deck transition slab at bridge head structural profile schematic diagram of the invention, shown in reference picture 1, one kind assembling
Formula bilayer transition slab at bridge head structure includes top buck plate 1, bottom buck plate 2, deformation adjustment system, compatibility of deformation plate 26, pouch
Supporter 39；Deformation adjustment system is located between top buck plate 1 and bottom buck plate 2, each in the both sides of pouch supporter 39
Set a set of, often set includes bar shaped top plate 3, bar shaped bottom plate 4, skewed horizontal load bar 5, double-action jack 6, connecting hinge 7, vertical branch
Support body 8, vertical baffle plate 9, discrete material obturator 10, Deformation control pipe 11；Compatibility of deformation plate 26 is located at top buck plate 1 and outside
Side deck installation structure 33, the intersection of pavement structure 34, including compatibility of deformation plate 26 and vertical steel plate 27；Pouch supporter 39
Between bar shaped top plate 3 and bar shaped bottom plate 4, including pouch filler 12, pouch madjack pipe 14, bag structure layer 13.
The width of top buck plate 1 10m, long 15m, thickness 30cm, using reinforced concrete structure, strength grade of concrete is C40；
On top, the lower surface of buck plate 1 sets two deformation adjustment system top limited impressions 15；Deformation adjustment system top is spacing
The width of groove 15 50cm, long 16m, depth 6cm；On top, the upper surface of buck plate 1 sets vertical steel plate link slot 24 and horizontal steel plate
Lay groove 25；The vertical width 100mm of steel plate link slot 24, depth 150mm；Horizontal steel plate lays the width of groove 25 400mm, depth 60mm.
The width of bottom buck plate 2 10m, long 15m, edge thickness 30cm, arch crown part thickness 20cm, using reinforced concrete structure,
Strength grade of concrete is C40；The lower surface of bottom buck plate 2 is in circular arc, and arc radius is 320m；The buck plate 2 in bottom
Upper surface deformation adjustment system lower limit groove 16 is set, lower surface sets abutment bracket link slot 17, grade beam link slot
(18), connecting bolt lays groove 20 through hole 19, grouting behind shaft or drift lining pipe；The width 50cm of deformation adjustment system lower limit groove 16, length
14m, depth 10cm；The cross section of abutment bracket link slot 17 is inShape, wide 40cm, high 15cm；Grade beam link slot 18 is cross-section
Face is inShape, wide 40cm, high 15cm；Connecting bolt passes through a diameter of 50mm in hole 19；It is wide that grouting behind shaft or drift lining pipe lays groove 20
20cm, high 20cm；In the lower surface laying thickness 1cm of abutment bracket link slot 17, grade beam link slot 18 rubber shock-absorbing layer 30, rubber
Glue buffer layer 30 uses artificial rubber.
Bar shaped top plate 3 and bar shaped bottom plate 4 use thickness 2cm, width 40cm Q235 steel plates, the long 15.8m of bar shaped top plate 3, bar
The long 13.2m of shape bottom plate 4；Skewed horizontal load bar 5 is using diameter 100mm steel pipe, and the two ends of skewed horizontal load bar 5 are welded to connect hinge 7；
Double-action jack 6 uses the hollow hydraulic jack of double acting, 10 tons of bearing capacity, stroke 152mm；Connecting hinge 7 uses ball pivot
Formula gimbal coupling, a diameter of 115mm of ball pivot；Vertical supporting body 8 uses hydraulic jack, 50 tons of bearing capacity, stroke
150mm；Vertical baffle plate 9 uses thickness 10mm, strength grade for Q235 steel plate, the high 20cm of steel plate；Discrete material obturator 10 is adopted
With clean gravelly sand.
Deformation control pipe 11, grouting behind shaft or drift lining pipe 32 use side-wall hole, diameter 100mm steel pipe.
The cavity of pouch supporter 39 is formed by the suture of bag structure layer 13, and cross section is rectangular, wide 5m, high 35cm, length
20m；The upper and lower surface of pouch supporter is pasted with bar shaped top plate 3, bar shaped bottom plate 4 respectively to be connected；Pouch filler 12
Using discrete material medium coarse sand, bag structure layer is 13) using thickness 5mm geotextiles composite geo-membrane；Pouch madjack pipe 14 is used
The steel pipe of side-wall hole, diameter 100mm；Pouch filler 12 is full of by the pouch cavity of the suture of bag structure layer 13.
Rigid reinforcing layer 21 uses thickness 5mm, strength grade for Q235 steel plate, along the lower surface of top buck plate 1 with
The upper surface laying of portion's buck plate 2；Rigid reinforcing layer 21 is connected with top buck plate 1, bottom buck plate 2 by rivet 22；Riveting
Nail 22 uses a diameter of 12mm expansion bolt.
Cushion rubber layer 23 is pasted on the upper and lower surface of vertical supporting body 8, and the artificial rubber using thick 1cm is pre-
It is made and vertical supporting body upper and lower surface identical shape.
Compatibility of deformation plate 26 is integrally rolled using same steel plate with vertical steel plate 27 and formed, steel plate thickness 2cm, intensity etc.
Level is Q235；The width of compatibility of deformation plate 26 50cm, long 20m；The high 20cm of vertical steel plate, long 20m；On compatibility of deformation plate 26 preset with
The rivet of pavement structure 34 or deck installation structure 33 connection in outside passes through hole 28；In the vertical insertion end of vertical steel plate 27
The anti-punching shear bar 29 with the vertical oblique of steel plate 27 is welded along plate length direction certain intervals；Rivet passes through the diameter 2cm of hole 28；Resistance to plucking steel
Muscle 29 uses diameter 25mm spiral, along plate length direction interval 50cm.
Connecting bolt 31 uses carbon steel Q235 chemical bolts, connecting bolt diameter 20mm, long 40cm.
Deck installation structure 33 uses reinforced concrete structure；Pavement structure 34 uses asphalt concrete pavement structure；Platform
Back of the body backfill material 35 is using clean medium coarse sand material；Abutment bracket 36 is poured using armored concrete, top width 40cm；Embankment fill material
37 use grittiness soil material.
Fig. 2 is a kind of mountable double-deck transition slab at bridge head structure construction flow charts of Fig. 1, shown in reference picture 2, and a kind of assembled is double
Layer transition slab at bridge head structure includes following construction procedure：
1) preparation of construction：Pavement structure 34, deck installation structure 33 is carried out to construct, and according to the requirement pair of transition slab at bridge head size
Pavement structure 34, the deck installation structure 33 of both sides are cut；Remove impurity, the foreign matter of structural connection position；
2) assembly parts are prefabricated with being connected：According to the prefabricated top buck plate 1 of design requirement, bottom buck plate 2, deformation adjustment system
System, compatibility of deformation plate 26, pouch supporter 39；On top, the upper surface of the lower surface of buck plate 1 and bottom buck plate 2 sets firm
Property reinforcing layer 21, and be connected firmly by rivet 22 with top buck plate 1, bottom buck plate 2；Vertical baffle plate 9 and bottom are filled
Matching board 2 is connected firmly；In the upper and lower surface of vertical supporting body 8, cushion rubber layer 23 is set；
3) bottom buck plate is installed：Rigidity is laid successively in the lower surface of abutment bracket link slot 17, grade beam link slot 18
Reinforcing layer 21 and rubber shock-absorbing layer 30, lay laying grouting behind shaft or drift lining pipe 32 in groove 20, first under bottom buck plate 2 in grouting behind shaft or drift lining pipe
Surface overlays back filling behind abutment material 35, then by the integral hoisting of bottom buck plate 2 to setting position, finally by connecting bolt 31 by under
Portion's buck plate 2 is connected firmly with abutment bracket 36, grade beam 38；
4) deformation adjustment system is set：Vertical supporting body 8 is installed in the vertical outside of baffle plate 9, and fills discrete material filling
Body 10, laying Deformation control pipe 11；Double acting thousand is laid in the deformation adjustment system lower limit groove 16 of buck plate 2 in bottom
Jin top 6 and bar shaped bottom plate 4；In the upper surface of bar shaped bottom plate 4, connecting hinge 7, pouch supporter 39 are set；By connecting hinge 7 and oblique branch
Strut 5 is connected；On the top of pouch supporter 39, bar shaped top plate 3 is set；
5) top buck plate 1 is installed：First in the vertical outside of baffle plate 9 supplement discrete material obturator 10, fill out discrete material
Fill the middle part slightly above both sides of body 10；Top buck plate 1 is set in pouch supporter 39, the upper surface of vertical supporting body 8 again；
6) plate bottom post jacking：By grouting behind shaft or drift lining pipe 32 into the back filling behind abutment material 35 of the bottom of bottom buck plate 2 mud jacking, filling
The space of the bottom of bottom buck plate 2；
7) compatibility of deformation plate 26 is installed：The vertical elevation of top buck plate 1 is checked and met after design requirement, first in compatibility of deformation
The lower surface of plate 26 pastes rubber shock-absorbing layer 30, and compatibility of deformation plate (26) then is arranged on into top buck plate spreads with outside bridge floor
Assembling structure 33, the intersection of pavement structure 34, and compatibility of deformation plate 26 and outboard structure are connected firmly using rivet 22；
8) elevation of top buck plate 1 is adjusted：After road puts into effect, according to the differential deformation situation in section before and after attachment strap,
By vertical supporting body 8, the vertical elevation of the synchronous adjustment top buck plate 1 of double-action jack 6, it is set to meet path formation
Degree is required；
9) grouting behind shaft or drift lining is constructed：After the completion of the adjustment of the elevation of top buck plate 1, pass through pouch madjack pipe 14, Deformation control pipe 11
Respectively to pouch filler 12, the slip casting of discrete material obturator 10, the elevation adjustment of hazard to bridge's pier is completed, then repeats to walk
It is rapid 7)；
10) late maintaining and buck plate are changed：After the completion of the adjustment of elevation, if before and after attachment strap section differential deformation feelings
Condition need to synchronize replacement again above code requirement to top buck plate 1, pouch supporter 39, discrete material obturator 10,
Repeat step 4)~step 7).
Claims (10)
1. a kind of mountable double-deck transition slab at bridge head structure, it is characterised in that：Structure includes top buck plate (1), bottom buck plate
(2), deformation adjustment system, compatibility of deformation plate (26), pouch supporter (39)；The lower surface of top buck plate (1) sets deformation
Regulating system top limited impression (15)；The lower surface of bottom buck plate (2) is in circular arc, and upper surface sets deformation adjustment system
Lower limit groove (16), lower surface sets abutment bracket link slot (17), grade beam link slot (18), connecting bolt to pass through hole
(19), grouting behind shaft or drift lining pipe lays groove (20)；Deformation adjustment system is located between top buck plate (1) and bottom buck plate (2),
The both sides of pouch supporter (39) respectively set a set of, often set include bar shaped top plate (3), bar shaped bottom plate (4), skewed horizontal load bar (5),
Double-action jack (6), connecting hinge (7), vertical supporting body (8), vertical baffle plate (9), discrete material obturator (10), deformation control
Tubulation (11)；Compatibility of deformation plate (26) is located at top buck plate (1) and outside deck installation structure (33), pavement structure (34) phase
At friendship, plate two ends set vertical steel plate (27) and rivet to pass through hole (28) respectively；Pouch supporter (39) is located at bar shaped top plate (3)
Between bar shaped bottom plate (4), including pouch filler (12), pouch madjack pipe (14), bag structure layer (13).
2. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：The deformation adjustment system
Bar shaped top plate (3) and bar shaped bottom plate (4) be respectively arranged on deformation adjustment system top limited impression (15) and deformation adjustment system
In lower limit groove (16), it is welded to connect with rigid reinforcing layer (21)；Bar shaped top plate (3) and bar shaped bottom plate (4) and oblique branch
Strut (5) is connected by connecting hinge (7), and connecting hinge (7) is welded to connect with bar shaped top plate (3), bar shaped bottom plate (4)；Bar shaped bottom plate
(4) piston rod at two ends and double-action jack (6) is welded to connect.
3. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：The deformation adjustment system
Vertical supporting body (8) be located between top buck plate (1) and bottom buck plate (2), and positioned at deformation adjustment system top limit
The outside of position groove (15) and deformation adjustment system lower limit groove (16), using pressure jack or rubber support or shaped steel
Bearing or the prefabricated bearing of armored concrete, cushion rubber layer (23) is respectively provided with the upper and lower surface of vertical supporting body (8)；
Vertical baffle plate (9) is set between vertical supporting body (8) and deformation adjustment system top limited impression (15), in vertical supporting body
(8) periphery sets discrete material obturator (10).
4. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：The top buck plate
(1) and bottom buck plate (2) use reinforced concrete structure, the lower surface of buck plate (1) and bottom buck plate (2) on top
The rigid reinforcing layer (21) of upper surface laying, rigid reinforcing layer (21) passes through riveting with top buck plate (1), bottom buck plate (2)
Follow closely (22) connection.
5. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：The pouch supporter
(39) cavity is formed by bag structure layer (13) suture, and its interior filling pouch filler (12) simultaneously lays pouch madjack pipe
(14)；The cross section of pouch supporter (39) is rectangular or ellipse, upper and lower surface respectively with bar shaped top plate (3), bar
Shape bottom plate (4) pastes connection；Pouch filler (12) uses high polymer material or discrete material；Bag structure layer (13) is using saturating
The fluid-tight geotextile material of gas.
6. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：The compatibility of deformation plate
(26) end sets vertical steel plate (27), compatibility of deformation plate (26) integrally rolled using same steel plate with vertical steel plate (27) or
It is welded into using two blocks of steel platesShape；The pavement structure (34) or bridge floor preset on compatibility of deformation plate (26) with outside are spread
The rivet (22) of assembling structure (33) connection passes through hole；Welded in the vertical insertion end of vertical steel plate (27) along plate length direction certain intervals
Connect the anti-punching shear bar (29) with vertical steel plate oblique.
7. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：Abutment bracket link slot
(17) cross section is inShape, grade beam link slot (18) cross section is inShape；In compatibility of deformation plate (26), abutment ox
Leg link slot (17), the lower surface of grade beam link slot (18) set rubber shock-absorbing layer (30), and rubber shock-absorbing layer (30) is using artificial
Rubber or natural rubber.
8. a kind of mountable double-deck transition slab at bridge head structure according to claim 1, it is characterised in that：Grouting behind shaft or drift lining pipe (32) is used
The pvc pipe or steel pipe of side-wall hole, one end closing, the other end are connected with outside Grouting Pipe, are laid along road Cross Section direction.
9. a kind of mountable double-deck transition slab at bridge head structure, it is characterised in that structure includes following construction procedure：
1) preparation of construction：Pavement structure (34), deck installation structure (33) construction are carried out, and according to the requirement pair of transition slab at bridge head size
Pavement structure (34), the deck installation structure (33) of both sides are cut；Remove impurity, the foreign matter of structural connection position；
2) assembly parts are prefabricated with being connected：According to the prefabricated top buck plate (1) of design requirement, bottom buck plate (2), deformation adjustment system
System, compatibility of deformation plate (26), pouch supporter (39)；The upper table of the lower surface of buck plate (1) and bottom buck plate (2) on top
Face sets rigid reinforcing layer (21), and is connected firmly by rivet (22) with top buck plate (1), bottom buck plate (2)；Will be perpendicular
It is connected firmly to baffle plate (9) with bottom buck plate (2)；In the upper and lower surface of vertical supporting body (8), rubber buffer is set
Layer (23)；
3) bottom buck plate is installed：Rigidity is laid successively in the lower surface of abutment bracket link slot (17), grade beam link slot (18)
Reinforcing layer (21) and rubber shock-absorbing layer (30), lay laying grouting behind shaft or drift lining pipe (32) in groove (20), first in bottom in grouting behind shaft or drift lining pipe
Buck plate (2) lower surface overlays back filling behind abutment material (35), then buck plate (2) integral hoisting in bottom is finally led to setting position
Cross connecting bolt (31) bottom buck plate (2) is connected firmly with abutment bracket (36), grade beam (38)；
4) deformation adjustment system is set：Vertical supporting body (8) is installed on the outside of vertical baffle plate (9), and fills discrete material filling
Body (10), laying Deformation control pipe (11)；Laid in bottom in the deformation adjustment system lower limit groove (16) of buck plate (2)
Double-action jack (6) and bar shaped bottom plate (4)；In bar shaped bottom plate (4) upper surface, connecting hinge (7), pouch supporter (39) are set；
Connecting hinge (7) is connected with skewed horizontal load bar (5)；On pouch supporter (39) top, bar shaped top plate (3) is set；
5) top buck plate (1) is installed：First the supplement discrete material obturator (10) on the outside of vertical baffle plate (9), makes discrete material
The middle part of obturator (10) is slightly above both sides；Top is set in pouch supporter (39), vertical supporting body (8) upper surface again
Buck plate (1)；
6) plate bottom post jacking：By grouting behind shaft or drift lining pipe (32) to back filling behind abutment material (35) interior mud jacking of bottom buck plate (2) bottom, fill out
Fill the space of bottom buck plate (2) bottom；
7) compatibility of deformation plate (26) is installed：The vertical elevation of top buck plate (1), which is checked, to be met after design requirement, first in compatibility of deformation
Plate (26) lower surface pastes rubber shock-absorbing layer (30), and compatibility of deformation plate (26) then is arranged on into top buck plate and outside bridge floor
Paving structure (33), pavement structure (34) intersection, and be connected compatibility of deformation plate (26) with outboard structure using rivet (22)
Firmly；
8) top buck plate (1) elevation is adjusted：After road puts into effect, according to the differential deformation situation in section before and after attachment strap, lead to
Vertical supporting body (8), the vertical elevation of double-action jack (6) synchronous adjustment top buck plate (1) are crossed, it is met road and puts down
Whole degree is required；
9) grouting behind shaft or drift lining is constructed：After the completion of the adjustment of top buck plate (1) elevation, pass through pouch madjack pipe (14), Deformation control pipe
(11) elevation adjustment of hazard to bridge's pier is completed to pouch filler (12), discrete material obturator (10) slip casting respectively, with
Repeat step 7 afterwards)；
10) late maintaining and buck plate are changed：After the completion of elevation adjustment, if the differential deformation situation in section is again before and after attachment strap
It is secondary to exceed code requirement, top buck plate (1), pouch supporter (39), discrete material obturator (10) need to be synchronized and replaced
Change, repeat step 4)~step 7).
10. a kind of construction method of mountable double-deck transition slab at bridge head structure according to claim 9, it is characterised in that：Double cropping
Coordinated with jack (6) stroke and deformation space, during the Pass line adjustment of top buck plate (1), the double cropping of bar shaped bottom plate (4) side
Apply pressure to bar shaped top plate (3) with jack (6), the double-action jack (6) of opposite side is synchronous to be applied to bar shaped top plate (3)
Pulling force, while adjusting the top surface absolute altitude of vertical supporting body (8).
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| CN201610231166.3A CN105908618B (en) | 2016-04-14 | 2016-04-14 | A kind of mountable double-deck transition slab at bridge head structure and construction method |
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| CN201610231166.3A CN105908618B (en) | 2016-04-14 | 2016-04-14 | A kind of mountable double-deck transition slab at bridge head structure and construction method |
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| CN110835885A (en) * | 2019-12-02 | 2020-02-25 | 中冶南方工程技术有限公司 | Bridgehead butt strap structure with adjustable warp |
| CN112144426B (en) * | 2020-10-20 | 2021-12-03 | 福建中设工程咨询有限公司 | Highway culvert structure and construction method |
| CN112796277A (en) * | 2020-12-10 | 2021-05-14 | 中山大学 | I-shaped steel pile-steel panel-high polymer composite layer soil retaining structure |
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| KR100862276B1 (en) * | 2008-04-14 | 2008-10-09 | (주) 케이 이엔씨 | Expansion joint device construction work method |
| JP5102695B2 (en) * | 2008-05-15 | 2012-12-19 | 東日本高速道路株式会社 | Sliding surface structure of on-site extension floor slab |
| CN203174453U (en) * | 2013-03-20 | 2013-09-04 | 浙江省交通规划设计研究院 | Light-mass embankment structure for managing bump at bridge head |
| CN103122605B (en) * | 2013-03-24 | 2016-03-23 | 宁波市镇海怡福莱文化创意有限公司 | A kind of transition slab at bridge head |
| CN203716051U (en) * | 2014-01-21 | 2014-07-16 | 浙江省交通规划设计研究院 | Soft soil foundation based bridgehead structure |
| CN105220620A (en) * | 2015-10-20 | 2016-01-06 | 合肥市市政设计院有限公司 | The bumping at bridge-head processing method of darker mud soft soil foundation after platform |
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