CN105937204A - Large-span steel box girder rigidity coordination type composite bridge deck pavement layer structure and construction method thereof - Google Patents
Large-span steel box girder rigidity coordination type composite bridge deck pavement layer structure and construction method thereof Download PDFInfo
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- CN105937204A CN105937204A CN201610347093.4A CN201610347093A CN105937204A CN 105937204 A CN105937204 A CN 105937204A CN 201610347093 A CN201610347093 A CN 201610347093A CN 105937204 A CN105937204 A CN 105937204A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 156
- 239000010959 steel Substances 0.000 title claims abstract description 156
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 40
- 238000010008 shearing Methods 0.000 claims abstract description 83
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 29
- 230000002787 reinforcement Effects 0.000 claims abstract description 29
- 239000004567 concrete Substances 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 8
- 238000010422 painting Methods 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 46
- 210000003205 muscle Anatomy 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 17
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- 238000000034 method Methods 0.000 claims description 8
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- 230000001680 brushing effect Effects 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 238000000280 densification Methods 0.000 claims description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract 1
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- 238000009713 electroplating Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
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- 229910052725 zinc Inorganic materials 0.000 description 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a large-span steel box girder rigidity coordination type composite bridge deck pavement layer structure and a construction method thereof. The construction method comprises painting anticorrosion thermal insulation layer coating along the periphery of a steel box girder; setting a side surface connecting plate and a top overlapping plate at seaming positions of the steel box girder, longitudinally welding shearing-resistant strips at an upper surface of the box girder, setting a shearing-resistant strip binding bar between the adjacent shearing-resistant strips, and setting a horizontal negative moment reinforcement and a longitudinal negative moment reinforcement at a bridge pier position; erecting a template to perform concrete pouring and maintenance of a rigid reinforcement layer; successively constructing a reinforcement mesh layer, a waterproof layer and a stress absorbing layer after intensity of the concrete is formed, and laying a drainage strip in a road camber direction; and finally laying a fine-grained SMA asphalt concrete layer and a medium-grained SMA asphalt concrete layer. Deformation and rigidity coordination of an upper structure layer of the steel box girder can be achieved, the steel box girder can also be effectively prevented from being influenced by pavement water seepage and temperature gradient, and the influence of the negative moment at the bridge pier on the structure can also be reduced.
Description
Technical field
The invention belongs to bridge construction field of engineering technology, relate to a kind of steel box girder bridge floor paving layer construction method, coordinate, improve Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure and the construction method thereof of structure sheaf disease resistance ability particularly to a kind of paving structure storey stiffness that can realize, it is adaptable to large span, the bridge deck pavement construction work of steel box girder bridge.
Background technology
Along with economic fast development, steel bridge application in Longspan Bridge, urban interchange is more and more universal.Relative to the steel bridge form such as steel truss, steel arch bridge, steel box-girder has from heavy and light, economy, the advantage such as erection is convenient, span ability is big, and its engineer applied is the most universal.Bridge deck pavement is the important component part of bridge driving system, direct bearing load and the erosion of environmentally hazardous substance, and good and bad and structure design the reasonability of the performance of pavement material is directly connected to bridge durability, safety, comfortableness and economy.
At present, the commonly used bituminous concrete of steel box girder bridge floor paving, but, owing to steel belongs to the good conductor of heat, and bituminous concrete resistance to elevated temperatures is poor, under the traffic load coupling with high temperature, asphalt concrete pavement layer is easily generated passage, gathers around the diseases such as bag, has a strong impact on service life and the pavement performance of bridge.
A kind of existing steel box girder bridge floor paving structure and method for paving with the capability of antidetonance, this structure is set up defences water layer above steel box beam orthotropic deck slab, tack coat is set in the top of waterproof layer, lower tack coat be arranged above GFRP-composite concrete antiknock pave-load layer, GFRP-composite concrete antiknock pave-load layer be arranged above tack coat, upper tack coat be arranged above bituminous concrete wearing course.This structure passes through GFRP-composite concrete antiknock pave-load layer, and select high-strength and high-ductility Light-weight composite concrete, can significantly strengthen the intensity of steel box-girder pave-load layer, toughness and shock resistance antiknock ability, but this structure is difficult to paving structure storey stiffness and coordinates, it is impossible to effectively reduce vehicle shearing to overlaying structural damage.
In sum, asphalt concrete layer of mating formation on steel box girder bridge face is the most universal, though existing overlay structure achieves preferable engineer applied effect under suitable operating mode, but how, effective coordination overlays structure storey stiffness, controls the aspect such as shear stress affact, prevention and control structure water-induced distress and remain and can improve part.It is actually needed in consideration of it, based on current engineering, the most urgently invents and a kind of effectively can overlay Structural defect, improve the Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method of structure tension performance by prevention and control steel box-girder.
Summary of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of not only can realize the deformation of steel box-girder upper structural layer, rigidity coordinate, and can effectively prevention and control pavement seepage, the temperature load impact on overlaying structure, it is also possible to Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure that at prevention and control bridge pier, structure sheaf is affected by hogging moment and construction method thereof.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure, including steel box-girder, transverse drain and vertical drainage pipe, it is characterized in that arranging side gussets in the web side of adjacent two width steel box-girder, end face lays top lapping plate, adjacent two width steel box-girder are connected by side gussets and top lapping plate, the upper surface of steel box-girder is spaced along the longitudinal direction and is welded with one group of shearing resistance band, being provided with shearing resistance band connecting lacing wire between adjacent shearing resistance band, steel box-girder sets the most negative muscle and the most negative muscle at bridge pier position；Steel box-girder top is bottom-up sets gradually rigidity reinforcing layer, reinforcement stratum reticulare, waterproof layer, stress absorbing layer, particulate formula SMA asphalt concrete layer and middle grain formula SMA asphalt concrete layer, and described bridge outpiled surface uniformly brushes one layer of anticorrosive heat insulating layer.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure, it is characterised in that described top lapping plate uses steel plate integral cutting to form, and width is 30cm ~ 50cm；The lapping plate high-strength bolt for installing lapping plate high-strength bolt is preset through hole in the both sides of top lapping plate.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure, it is characterized in that shearing resistance band is formed by orthogonal vertical steel plate and horizontal Plate Welding, vertical steel plate upper edge interval is laid shearing resistance band connecting lacing wire and is laid groove through hole and U-shaped reinforcing bar；Described shearing resistance band connecting lacing wire is laid at 1/2 ~ 2/3 vertical height of shearing resistance band through hole, and the most negative described muscle is connected with shearing resistance band vertical welding, along bridge longitudinal be spaced apart 15 ~ 30cm, the horizontal length 2 ~ 4m bigger than the width of bridge pier bearing muscle.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure, it is characterized in that described rigidity reinforcing layer arranges transverse expansion joint along longitudinal uniform intervals, discrete material is filled in transverse expansion joint, stress spread plate is laid at top, expansion joint, stress spread plate is connected by stress spread plate anchor bolt with rigidity reinforcing layer, described reinforcement stratum reticulare uses earth work grille net or bar-mat reinforcement or steel fibre grid, lays along rigidity reinforcing layer upper surface tunneling boring.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure, it is characterized in that described waterproof layer upper surface lays draining band along road camber direction, draining strap ends inserts the transverse drain outside steel box-girder, transverse drain communicates with vertical drainage pipe, and vertical drainage pipe top connects sluicing funnel.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterised in that include following construction procedure:
1) anticorrosive heat insulating layer brushing: the pollutant on steel box-girder surface, rust are removed clean, uses one layer of anticorrosive heat insulating layer of painting tool brushing uniform to bridge outpiled surface；
2) steel box-girder lifting: use lifting machinery to lift the steel box-girder of step 1) to bridge pier top, and steel box-girder is connected firmly with bridge pier；
3) side gussets is arranged: arrange vertical side gussets in the web side of adjacent two width steel box-girder, connects adjacent two width steel box-girder by vertical side gussets, is connected firmly by high-strength web connecting bolt with web by side gussets；
4) top lapping plate is arranged: the end face at adjacent two width steel box-girder lays top lapping plate along longitudinal, connects adjacent two width steel box-girder by top lapping plate, and is connected firmly by lapping plate high-strength bolt with steel box-girder by top lapping plate；
5) shearing resistance band is installed: the upper surface at steel box-girder welds one group of shearing resistance band along the longitudinal direction, by shearing resistance band connecting lacing wire through the shearing resistance band connecting lacing wire of adjacent two shearing resistance bands through hole, adjacent cuts band connecting lacing wire for connecting anti-two；
6) laterally bear muscle and the most negative muscle is installed: at bridge pier position, make laterally to bear muscle and be arranged on the U-shaped reinforcing bar laying groove of collinear shearing resistance band upper surface, and at the longitudinal negative muscle of upper surface interval welding one group of the most negative muscle (14)；
7) rigidity reinforcing layer concreting: install template on steel box-girder and carry out concreting, and increase vibrations number of times at shearing resistance band, the most negative muscle position, it is ensured that concrete is the most closely knit；
8) reinforcement stratum reticulare is laid: after the rigidity reinforcing layer concrete initial set of step 7) before final set, lays reinforcement stratum reticulare along rigidity reinforcing layer upper surface, and the reinforcement stratum reticulare after stretch-draw is tight is connected firmly with rigidity reinforcing layer by U-shaped rivet；
9) construction of waterproof layer: lay waterproof layer at reinforcement stratum reticulare upper surface, the outer ledge at waterproof layer upper surface is laid transverse drain along longitudinal, is made draining band be connected with the transverse drain outside steel box-girder；
10) stress absorbing layer is laid: lays dense bitumen Stabilized crushed stone material or close-graded rubber Stabilized crushed stone material on waterproof layer top, and uses light-duty road roller to be compacted, forms stress absorbing layer；
11) particulate formula SMA asphalt concrete layer and middle grain formula SMA asphalt concrete layer are laid: lay particulate formula SMA asphalt concrete layer and middle grain formula SMA asphalt concrete layer on stress absorbing layer top successively, and two layer positions carry out machinery densification respectively；
12) the bridge floor both sides obtained in step 11) are respectively provided with sluicing funnel and top connected vertical drainage pipe, and vertical drainage pipe extends to bottom bridge pier, and transverse drain connects with vertical drainage pipe.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterised in that top lapping plate described in step 4) uses steel plate integral cutting to form, wide 30cm ~ 50cm；Lapping plate high-strength bolt is preset through hole in the both sides of top lapping plate；Lapping plate high-strength bolt uses rustless steel expansion bolt.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterized in that shearing resistance band described in step 5) is formed by orthogonal vertical steel plate and horizontal Plate Welding, on vertical steel plate, interval is laid shearing resistance band connecting lacing wire and is passed hole, and vertical steel plate top is offered U-shaped reinforcing bar and laid groove.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterised in that described shearing resistance band connecting lacing wire is positioned at the vertical height of distance shearing resistance band (9) top 1/2 ~ 2/3 through hole (10).
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterized in that in step 5), shearing resistance band connecting lacing wire one end arranges shearing resistance band connecting lacing wire end plate, the other end arranges connecting lacing wire bolt, described shearing resistance band connecting lacing wire end plate is welded on outside one of them shearing resistance band, and the shearing resistance band connecting lacing wire other end is anchored on outside another root shearing resistance band of correspondence by connecting lacing wire bolt.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterized in that described in step 6), the most negative muscle is connected with shearing resistance band vertical welding, adjacent two laterally negative muscle along bridge longitudinal be spaced apart 15 ~ 30cm, the length 2 ~ 4m wider than bridge pier of the most negative muscle.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method; it is characterized in that described in step 7) that the concrete used by rigidity reinforcing layer is lightweight fines concrete layer or self-compaction fines concrete; along rigidity reinforcing layer longitudinal direction uniform intervals, transverse expansion joint is set; discrete material is filled in transverse expansion joint; stress spread plate is laid at transverse expansion joint top, and stress spread plate is connected by stress spread plate anchor bolt with rigidity reinforcing layer.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterised in that reinforcement stratum reticulare described in step 8) uses earth work grille net or bar-mat reinforcement or steel fibre grid, reinforcement stratum reticulare is laid along rigidity reinforcing layer upper surface tunneling boring.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterized in that waterproof layer described in step 9) uses rubber membrane or sheet rubber or malthoid geotextile material, waterproof layer upper surface lays draining band along road camber direction, and draining strap ends inserts the transverse drain outside steel box-girder.
Described a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method, it is characterised in that the sluicing funnel in step 12) uses horn mouth cast iron sluicing funnel.
By using above-mentioned technology, compared with prior art, the present invention has following feature and a beneficial effect:
1) present invention is spaced in overlay and arranges one group of shearing resistance band, and arranges shearing resistance band tension rib at shearing resistance bar interband, can improve, while strengthening overlay structure sheaf bulk strength, the ability overlaying structure sheaf opposing failure by shear；
2) present invention lays rigidity reinforcing layer, reinforcement stratum reticulare, waterproof layer, stress absorbing layer, particulate formula SMA asphalt concrete layer and middle grain formula SMA asphalt concrete layer successively on steel box-girder top, can the smoothly transition of rigidity between layers, and then compatibility of deformation between layers；
3) present invention lays side gussets and top lapping plate between steel box-girder web, can reduce the differential deformation between adjacent steel box beam, strengthens the globality of steel box-girder；
4) present invention lays draining band in overlay, arranges drain pipe in overlay outboard end, it is possible to decrease the rain penetration corrosion to steel box-girder；
5) Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method disclosed by the invention, not only can realize paving structure storey stiffness to coordinate, improve structure sheaf disease resistance ability, improve structure tension performance, and can effectively prevent the impact on steel box-girder of pavement seepage and thermograde, the hogging moment impact on structure at bridge pier can also be reduced, it is adaptable to large span, the bridge deck pavement construction work of steel box girder bridge.
Accompanying drawing explanation
Fig. 1 is the Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure transverse face figure of the present invention；
Fig. 2 is the Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure skiagraph of Fig. 1；
Fig. 3 is Fig. 1 shearing resistance band side view；
Fig. 4 is Fig. 1 shearing resistance band cross-sectional view；
Fig. 5 is Fig. 1 shearing resistance band connecting lacing wire cross-sectional view；
Fig. 6 is Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure construction flow chart of the present invention.
In figure: 1-steel box-girder；2-anticorrosive heat insulating layer；3-bridge pier；4-side gussets；5-web；6-high-strength web connecting bolt；7-top lapping plate；8-lapping plate high-strength bolt；9-shearing resistance band；10-shearing resistance band connecting lacing wire passes hole；11-shearing resistance band connecting lacing wire；12-shearing resistance band connecting lacing wire end plate；13-connecting lacing wire bolt；14-laterally bears muscle；The most negative muscle of 15-；Groove laid by 16-U shape reinforcing bar；17-rigidity reinforcing layer；18-reinforcement stratum reticulare；19-U shape rivet；20-waterproof layer；21-draining band；22-transverse drain；23-vertical drainage pipe；24-stress absorbing layer；25-particulate formula SMA asphalt concrete layer；Grain formula SMA asphalt concrete layer in 26-；27-lapping plate high-strength bolt passes hole；28-sluicing funnel；The vertical steel plate of 29-；The horizontal steel plate of 30-；31-transverse expansion joint；32-discrete material；33-stress spread plate；34-stress spread plate anchor bolt；35-bridge pier.
Detailed description of the invention
Below in conjunction with Figure of description, embodiments of the invention are described in further detail, but the present invention is not limited to the present invention, the analog structure of every employing present invention and similar change thereof, all should list protection scope of the present invention in.
The shearing resistance strip design that the present invention relates to and manufacturing technology requirement, steel box-girder surface process construction technical requirement, the requirement of concrete pouring construction technology, the requirement of SMA asphalt concrete layer design and construction technology, reinforcing bar binding or the requirement of welding procedure technology, the requirement of stress absorbing layer design and construction technology, tension rib making and construction technical requirement etc. belong to routine techniques, therefore repeating no more in present embodiment, emphasis illustrates the embodiment of the method that the present invention relates to.
Fig. 1 is one Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure transverse face of the present invention figure, Fig. 2 is Fig. 1 Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure skiagraph, Fig. 3 is Fig. 1 shearing resistance band side view, Fig. 4 is Fig. 1 shearing resistance band cross-sectional view, and Fig. 5 is Fig. 1 shearing resistance band connecting lacing wire cross-sectional view.
With reference to shown in Fig. 1 ~ Fig. 5, Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure of the present invention uniformly brushes one layer of anticorrosive heat insulating layer 2 at steel box-girder 1 outer surface, arrange side gussets 4 in web 5 side of adjacent two width steel box-girder 1, end face lays top lapping plate 7, adjacent two steel box-girder 1 are connected by side gussets 4 and top lapping plate 7, at the upper surface of steel box-girder 1 along one group of shearing resistance band 9 of longitudinal measure, adjacent cut to be provided with between band 9 cut band connecting lacing wire 11, set the most negative muscle 14 and the most negative muscle 15 on 3, bridge pier；Bottom-up on steel box-girder 1 top set gradually rigidity reinforcing layer 17, reinforcement stratum reticulare 18, waterproof layer 20, stress absorbing layer 24, particulate formula SMA asphalt concrete layer 25 and middle grain formula SMA asphalt concrete layer 26.
As it can be seen, in the embodiment of the present invention, steel box-girder 1 end face width 8m, high 1.8m, make " T " shape according to current specifications, web 5 bottom width 2m, armor plate strength grade is Q235.
Anticorrosive heat insulating layer 2 uses water base pure acrylic latex.
The wide 20m of bridge pier 3, uses Reinforced Concrete Materials to pour, concrete strength C40.
The wide 1.0m of side gussets 4, high 1.0m, thick 20mm, strength grade are Q235；Side gussets 4 is connected firmly by high-strength web connecting bolt 6 with steel box-girder web 5；High-strength web connecting bolt 6 uses outer-hexagonal bolt, and specification is M30.
Top lapping plate 7 uses steel plate integral cutting to form, and wide 50cm, long 3m, thick 20mm, strength grade are Q235；Lapping plate high-strength bolt is preset through hole 27 in the both sides of top lapping plate 7；Lapping plate high-strength bolt passes hole 27 diameter 25mm；Lapping plate high-strength bolt 8 uses rustless steel expansion bolt, overall length 60mm, overlaps pipe range 40 mm, diameter 20mm, and surface is zinc electroplating with iridescent yellow chromate conversion coating.
Shearing resistance band 9 is welded by orthogonal vertical steel plate 29 and horizontal steel plate 30, and steel plate thickness 20mm, strength grade are Q235；The vertical high 150mm of steel plate 29, lay shearing resistance band connecting lacing wire at the upper interval of vertical steel plate 29 and lay groove 16 through hole 10 and U-shaped reinforcing bar, U-shaped reinforcing bar is laid groove 16 and is offered from vertical steel plate 29 top, and shearing resistance band connecting lacing wire is positioned at 1/2 ~ 2/3 vertical height of vertical steel plate 29 (from top to bottom) through hole 10；Shearing resistance band connecting lacing wire passes hole 10 diameter 35mm；U-shaped reinforcing bar is laid groove 16 transverse section and is taken the shape of the letter U, groove depth 40mm；Shearing resistance band connecting lacing wire 11 uses a diameter of 32mm, strength grade is the spiral of HRB335, being threaded at shearing resistance band connecting lacing wire 11 two ends, one end arranges the square shearing resistance band connecting lacing wire end plate 12 of 60mm, and the other end sets the internal diameter connecting lacing wire bolt 13 as 25mm.
The most negative muscle 14 and the most negative muscle 15 all use a diameter of 32mm, and strength grade is the spiral of HRB335, and the most negative muscle 14 is welded to connect with the most negative muscle 15, shearing resistance band 9.
Rigidity reinforcing layer 17 thickness is 200mm; concrete used by rigidity reinforcing layer 17 is lightweight fines concrete layer or self-compaction fines concrete that grade is C35; longitudinally a transverse expansion joint 31 is laid every 20m, the wide 100mm of transverse expansion joint 31 along rigidity reinforcing layer 17；Filling discrete material 32 in transverse expansion joint 31, discrete material 32 uses the coarse sand of uniform particle sizes；Lay stress spread plate 33 at transverse expansion joint 31 top, stress spread plate 33 uses a width of 50mm, a length of 18m, the thick steel plate for 20mm, and its strength grade is Q235；Stress spread plate 33 is connected by stress spread plate anchor bolt 34 with rigidity reinforcing layer 17, and stress spread plate anchor bolt 34 uses rustless steel expansion bolt, overall length 60mm, overlaps pipe range 40 mm, diameter 20mm, and surface is zinc electroplating with iridescent yellow chromate conversion coating.
Reinforcement stratum reticulare 18 uses the bar-mat reinforcement that diameter 6mm reinforcing bar weaves；Plain steel-bar that U-shaped rivet 19 uses diameter 10mm, strength grade to be HRB335 is prefabricated to be formed；Waterproof layer 20 uses the sheet rubber of thick 10mm.
The plastic draining board that draining band 21 uses thickness to be 8mm；Transverse drain 22, vertical drainage pipe 23 all use the pvc pipe of diameter 110mm.
Stress absorbing layer 24 uses Asphalt Stabilized Macadam to use, and Colophonium uses modified pitch.
Particulate formula SMA asphalt concrete layer 25 uses the SMA-13 bituminous concrete of thick 6cm；Middle grain formula SMA asphalt concrete layer 26 uses the SMA-20 bituminous concrete of thick 8cm.
Sluicing funnel 28 uses horn mouth cast iron sluicing funnel, connects with vertical drainage pipe 23 bottom sluicing funnel 28.
Bridge pier 35 bottom bridge pier 3 is deposited reinforced concrete pile, bridge pier diameter 1m.
Fig. 6 is Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure construction flow chart of the present invention.Shown in reference Fig. 6, a kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method of the present invention, including following construction procedure:
1) anticorrosive heat insulating layer 2 is brushed: removes clean by the pollutant on steel box-girder 1 surface, rust, uses painting tool uniformly to brush one layer of anticorrosive heat insulating layer 2 along steel box-girder 1 outer surface；
2) steel box-girder 1 lifts: uses lifting machinery to lift steel box-girder to bridge pier 3 top, and is connected firmly with bridge pier 3 by steel box-girder 1；
3) side gussets 4 is arranged: in web 5 side of adjacent two width steel box-girder 1, arranges vertical side gussets 4, and is connected firmly by high-strength web connecting bolt 6 with steel box-girder 1 web 5 by side gussets 4；
4) top lapping plate 7 is arranged: at the end face of adjacent two width steel box-girder 1, along longitudinally laying top lapping plate 7, and be connected firmly by lapping plate high-strength bolt 8 with steel box-girder 1 by top lapping plate 7；
5) shearing resistance band 9 is installed: at the upper surface of steel box-girder 1 along longitudinal measure shearing resistance band 9, shearing resistance band connecting lacing wire between adjacent shearing resistance band 9 passes shearing resistance band connecting lacing wire 11 in hole 10, and shearing resistance band connecting lacing wire end plate 12 is welded to connect with shearing resistance band 9, the other end is fastened by connecting lacing wire bolt 13；
6) laterally bearing muscle 14 and the most negative muscle 15 is installed: at bridge pier 3 position, make the U-shaped reinforcing bar laying groove 16 laterally bearing muscle 14 through shearing resistance band 9 upper surface, muscle 15 is longitudinally born in the upper surface welding at the most negative muscle 14；
7) rigidity reinforcing layer 17 concreting: install template and carry out concreting, and increase vibrations number of times at shearing resistance band 9, the most negative muscle 14 position, it is ensured that concrete is the most closely knit；
8) reinforcement stratum reticulare 18 is laid: after rigidity reinforcing layer 17 concrete initial set before final set, lays reinforcement stratum reticulare 18 along rigidity reinforcing layer 17 upper surface, and the reinforcement stratum reticulare 18 after stretch-draw is tight is connected firmly with rigidity reinforcing layer 17 by U-shaped rivet 19；
9) waterproof layer 20 is constructed: laying waterproof layer 20 at reinforcement stratum reticulare 18 upper surface, and lay draining band 21 on waterproof layer 20 top along road camber direction, described waterproof layer 20 uses rubber membrane or sheet rubber or malthoid geotextile material；Outer ledge at waterproof layer 20 upper surface lays portraitlandscape drain pipe 22 along longitudinal, makes portraitlandscape drain pipe 22 connect with vertical drainage pipe 23, and makes draining band 21 be connected with the portraitlandscape drain pipe 22 outside steel box-girder 1；
10) stress absorbing layer 24 is laid: lays dense bitumen Stabilized crushed stone material on waterproof layer 20 top, and uses light-duty road roller to be compacted, forms stress absorbing layer 24；
11) particulate formula SMA asphalt concrete layer 25 and middle grain formula SMA asphalt concrete layer 26 are laid: lay SMA-13 asphalt concrete layer and middle grain formula SMA-20 asphalt concrete layer on stress absorbing layer 24 top successively, and two layer positions carry out machinery densification respectively；
12) the bridge floor both sides obtained in step 11) are respectively provided with sluicing funnel 28 and top connected vertical drainage pipe 23, and vertical drainage pipe 23 extends to bottom bridge pier 35, and transverse drain 22 connects with vertical drainage pipe 23.
Claims (10)
1. a Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure, including steel box-girder (1), transverse drain (22) and vertical drainage pipe (23), it is characterized in that arranging side gussets (4) in web (5) side of adjacent two width steel box-girder (1), end face lays top lapping plate (7), adjacent two width steel box-girder (1) are connected by side gussets (4) and top lapping plate (7), the upper surface of steel box-girder (1) is spaced along the longitudinal direction and is welded with one group of shearing resistance band (9), it is provided with shearing resistance band connecting lacing wire (11) between adjacent shearing resistance band (9), steel box-girder (1) sets the most negative muscle (14) and the most negative muscle (15) at bridge pier position；Steel box-girder (1) top is bottom-up sets gradually rigidity reinforcing layer (17), reinforcement stratum reticulare (18), waterproof layer (20), stress absorbing layer (24), particulate formula SMA asphalt concrete layer (25) and middle grain formula SMA asphalt concrete layer (26), and described steel box-girder (1) outer surface uniformly brushes one layer of anticorrosive heat insulating layer (2).
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure the most according to claim 1, it is characterised in that described top lapping plate (7) uses steel plate integral cutting to form, and width is 30cm ~ 50cm；The lapping plate high-strength bolt for installing lapping plate high-strength bolt (8) is preset through hole (27) in the both sides of top lapping plate (7).
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure the most according to claim 1, it is characterized in that shearing resistance band (9) is welded by orthogonal vertical steel plate (29) and horizontal steel plate (28), vertical steel plate (29) upper edge interval is laid shearing resistance band connecting lacing wire and is laid groove (16) through hole (10) and U-shaped reinforcing bar；Described shearing resistance band connecting lacing wire is laid at 1/2 ~ 2/3 vertical height of shearing resistance band (9) through hole (10), the most negative described muscle (14) is connected with shearing resistance band (9) vertical welding, along bridge longitudinal be spaced apart 15 ~ 30cm, laterally bear the length big 2 ~ 4m of width than bridge pier (3) of muscle (14).
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure the most according to claim 1, it is characterized in that described rigidity reinforcing layer (17) arranges transverse expansion joint (31) along longitudinal uniform intervals, discrete material (32) is filled in transverse expansion joint (31), stress spread plate (33) is laid at top, expansion joint, stress spread plate (33) is connected by stress spread plate anchor bolt (34) with rigidity reinforcing layer (17), described reinforcement stratum reticulare (18) uses earth work grille net or bar-mat reinforcement or steel fibre grid, lay along rigidity reinforcing layer (17) upper surface tunneling boring.
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer structure the most according to claim 1, it is characterized in that described waterproof layer (20) upper surface lays draining band (21) along road camber direction, the transverse drain (22) in steel box-girder (1) outside is inserted in draining band (21) end, transverse drain (22) communicates with vertical drainage pipe (23), and vertical drainage pipe (23) top connects sluicing funnel (28).
6. one kind according to described Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method arbitrary in claim 1-5, it is characterised in that include following construction procedure:
1) anticorrosive heat insulating layer (2) brushing: the pollutant on steel box-girder (1) surface, rust are removed clean, uses painting tool that steel box-girder (1) outer surface is uniformly brushed one layer of anticorrosive heat insulating layer (2)；
2) steel box-girder (1) lifting: use lifting machinery to lift the steel box-girder (1) of step 1) to bridge pier (3) top, and steel box-girder (1) is connected firmly with bridge pier (3)；
3) side gussets (4) is arranged: arrange vertical side gussets (4) in web (5) side of adjacent two width steel box-girder (1), connect adjacent two width steel box-girder (1) by vertical side gussets (4), side gussets (4) is connected firmly by high-strength web connecting bolt (6) with web (5)；
4) top lapping plate (7) is arranged: the end face at adjacent two width steel box-girder (1) lays top lapping plate (7) along longitudinal, connect adjacent two width steel box-girder (1) by top lapping plate (7), and top lapping plate (7) is connected firmly by lapping plate high-strength bolt (8) with steel box-girder (1)；
5) shearing resistance band (9) is installed: the upper surface at steel box-girder (1) welds one group of shearing resistance band (9) along the longitudinal direction, by shearing resistance band connecting lacing wire (11) through the shearing resistance band connecting lacing wire of adjacent two shearing resistance bands (9) through hole (10), adjacent cut band connecting lacing wire (11) for connecting anti-two；
6) laterally bear muscle (14) and the most negative muscle (15) is installed: at bridge pier (3) position, make laterally to bear muscle (14) to be arranged on U-shaped reinforcing bar laying groove (16) of collinear shearing resistance band (9) upper surface, and at the longitudinal negative muscle (15) of upper surface interval welding one group of the most negative muscle (14)；
7) rigidity reinforcing layer (17) concreting: install template on steel box-girder (1) and carry out concreting, and at shearing resistance band (9), laterally bear muscle (14) position and increase vibrations number of times, it is ensured that concrete is the most closely knit；
8) reinforcement stratum reticulare (18) is laid: after rigidity reinforcing layer (17) concrete initial set of step 7) before final set, laying reinforcement stratum reticulare (18) along rigidity reinforcing layer (17) upper surface, the reinforcement stratum reticulare (18) after stretch-draw is tight is connected firmly with rigidity reinforcing layer (17) by U-shaped rivet (19)；
9) waterproof layer (20) construction: lay waterproof layer (20) at reinforcement stratum reticulare (18) upper surface, outer ledge at waterproof layer (20) upper surface lays transverse drain (22) along longitudinal, makes draining band (21) be connected with the transverse drain (22) in steel box-girder (1) outside；
10) stress absorbing layer (24) is laid: lays dense bitumen Stabilized crushed stone material or close-graded rubber Stabilized crushed stone material on waterproof layer (20) top, and uses light-duty road roller to be compacted, forms stress absorbing layer (24)；
11) particulate formula SMA asphalt concrete layer (25) and middle grain formula SMA asphalt concrete layer (26) are laid: lay particulate formula SMA asphalt concrete layer (25) and middle grain formula SMA asphalt concrete layer (26) on stress absorbing layer (24) top successively, and two layer positions carry out machinery densification respectively；
12) the bridge floor both sides obtained in step 11) are respectively provided with sluicing funnel (28) and top connected vertical drainage pipe (23), and vertical drainage pipe (23) extends to bridge pier (35) bottom, and transverse drain (22) connects with vertical drainage pipe (23).
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method the most according to claim 6, it is characterized in that in step 5), shearing resistance band connecting lacing wire (11) one end arranges shearing resistance band connecting lacing wire end plate (12), the other end arranges connecting lacing wire bolt (13), described shearing resistance band connecting lacing wire end plate (12) is welded on one of them shearing resistance band (9) outside, and shearing resistance band connecting lacing wire (11) other end is anchored on another root shearing resistance band (9) outside of correspondence by connecting lacing wire bolt (13).
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method the most according to claim 6, it is characterized in that described in step 7) that the concrete used by rigidity reinforcing layer (17) is lightweight fines concrete layer or self-compaction fines concrete, along rigidity reinforcing layer (17) longitudinal uniform intervals, transverse expansion joint (31) is set, discrete material (32) is filled in transverse expansion joint (31), stress spread plate (33) is laid at transverse expansion joint (31) top, stress spread plate (33) is connected by stress spread plate anchor bolt (34) with rigidity reinforcing layer (17).
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method the most according to claim 6, it is characterized in that waterproof layer described in step 9) (20) uses rubber membrane or sheet rubber or malthoid geotextile material, waterproof layer (20) upper surface lays draining band (21) along road camber direction, and the transverse drain (22) in steel box-girder (1) outside is inserted in draining band (21) end.
A kind of Large-span Steel Box Beam rigidity cooperative type composite deck pave-load layer construction method the most according to claim 6, it is characterised in that the sluicing funnel (28) in step 12) uses horn mouth cast iron sluicing funnel.
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