CN104711922B - A kind of Large-span Precast bridge structure - Google Patents
A kind of Large-span Precast bridge structure Download PDFInfo
- Publication number
- CN104711922B CN104711922B CN201510129200.1A CN201510129200A CN104711922B CN 104711922 B CN104711922 B CN 104711922B CN 201510129200 A CN201510129200 A CN 201510129200A CN 104711922 B CN104711922 B CN 104711922B
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- CN
- China
- Prior art keywords
- fastener inserts
- beam body
- precast bridge
- stress assembly
- span precast
- 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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- 238000011065 in-situ storage Methods 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 21
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 claims description 20
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 17
- 239000004800 polyvinyl chloride Substances 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 15
- 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 claims description 13
- 239000007799 cork Substances 0.000 claims description 13
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 229920006312 vinyl chloride fiber Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 108010080379 Fibrin Tissue Adhesive Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/266—Concrete reinforced with fibres other than steel or glass
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of Large-span Precast bridge structure, including beam body, beam body is longitudinally sequentially provided with the beam rib region being connected and beam wing plate region along it, and the top in beam rib region and beam wing plate region is provided with bridge floor in-situ layer；Beam rib region has many first the first fastener inserts being intervally installed across seam stress assembly and Duo Gen being intervally installed, and first even connects across seam stress assembly and the weldering of the first fastener inserts；Beam wing plate region has many second the second fastener inserts being intervally installed across seam stress assembly and Duo Gen being intervally installed, second across seam stress assembly and the second fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, second even connects across seam stress assembly and the weldering of the second fastener inserts.Large-span Precast bridge structure of the present invention, improves the tensile strength of breaking joint position, to reduce the generation in crack at end seam, the impact on beam body of seeping water after reducing bridge floor cracking, improves the durability of bridge.
Description
Technical field
The present invention relates to engineering field, particularly relate to a kind of application at the Large-span Precast at more than 35m across footpath
Bridge structure.
Background technology
Precast hollow slab and Precast T-Beam are conventional version, and this kind of structure can reduce construction to path link
The impact of row, and this structure is both needed at breaking joint do bridge floor and designs continuously.
At present, the most frequently used bridge floor conitnuous forms have three kinds: 1, with consolidating that rectangular reinforced concrete plate does
Knot continuous slab, this form steel using amount is more, and owing to concrete bears bigger tension, easily ftractures,
Rain penetration easily causes steel bar corrosion.2, the hinged continuous slab made of armoured concrete slab, though this form
So stress performance is improved, because plate end disconnects its tension releasable, but structure is complicated, and construction is the most not
Convenient；3, make connecting rod with bar reinforcement, i.e. adjacent holes girder end face in-situ layer end intensity relatively
High think bar connection, relies on reinforcing bar transmission horizontal force, and reinforcing bar two ends are anchored in the in-situ layer of back end.
Only soft in the reinforcing bar wrapping in the range of beam-ends two fulcrum length bed course, reinforcing bar can do small in bed course
Move up and down, rotate owing to bending the beam-ends that causes after load-bearing adapting to beam body.Flexible cushion has well
Antiseptic property, and make reinforcing bar separate with concrete completely, reinforcing bar is not subject to the pressure of local wheel load.
Experience have shown that, along with the increase of precast beam span, pre-between seam interspaces the biggest, therefore beam body
After load-bearing, flexure is big, beam-ends rotation is big, uses above-mentioned bridge floor continuation apparatus that cracking phenomena easily occurs, affects bridge
The durability of face use and road-ability.This kind of bridge floor continuation apparatus maximum at present is only limitted to apply at 35m
Within footpath.
Summary of the invention
The technical problem to be solved is, it is provided that a kind of Large-span Precast bridge structure, improves disconnected
The tensile strength of seam position, to reduce the generation in crack at end seam.
Another technical problem to be solved by this invention is, the impact on beam body of seeping water after reducing bridge floor cracking,
Improve the durability of bridge.
In order to solve above-mentioned technical problem, The embodiment provides a kind of Large-span Precast bridge structure,
Including beam body, beam body is longitudinally sequentially provided with the beam rib region being connected and beam wing plate region, beam rib region along it
It is provided with bridge floor in-situ layer with the top in beam wing plate region；Beam rib region has many first be intervally installed
Across the first fastener inserts that seam stress assembly and Duo Gen are intervally installed, first across seam stress assembly and first
Fastener inserts is respectively along the lateral arrangement of Large-span Precast bridge, and first across seam stress assembly and first pre-buried group
Part weldering even connects；Beam wing plate region have many be intervally installed second across seam stress assembly and Duo Gen that
This spaced second fastener inserts, second across stitching stress assembly and the second fastener inserts respectively along large span
The lateral arrangement of precast bridge, second even connects across seam stress assembly and the weldering of the second fastener inserts；Beam rib region
End be provided with the first fluting, the first fluting connects the opening of beam body and is provided with the first tensile members and first and intercepts
Part, is provided with the first filling member in the first barriers, and the first filling member compresses the first tensile members in beam body；
The end in beam wing plate region is provided with the second fluting, and the second fluting connects the opening of beam body and is provided with the second tensile members
With the second barriers, being provided with the second filling member in the second barriers, the second filling member compresses the second tensile members
In beam body.
Wherein, the first tensile members and the second tensile members are respectively painted with the highly elastic polyvinyl chloride of epoxy resin
Fiber cloth.
Wherein, highly elastic polyvinyl chloride fiber cloth is set to bilayer.
Wherein, the first barriers and the second barriers are respectively U-shaped zinc-iron skin.
Wherein, the position that U-shaped zinc-iron skin contacts with beam body is set to seal.
Wherein, the first filling member and the second filling member are respectively Colophonium immersion cork.
Wherein, beam rib region has many groups of the 3rd fastener inserts being intervally installed, the 3rd fastener inserts edge
The lateral arrangement of Large-span Precast bridge, first even connects across seam stress assembly and the weldering of the 3rd fastener inserts.
Large-span Precast bridge structure provided by the present invention, has the advantages that
The first, first across seam stress assembly or second across seam stress assembly and the first fastener inserts or second pre-buried
Assembly is respectively along the lateral arrangement of Large-span Precast bridge, and first across seam stress assembly and the weldering of the first fastener inserts
Even connecting, second even connects across seam stress assembly and the weldering of the second fastener inserts；Beam rib region and beam wing plate region
Bottom be provided with the first fluting or second fluting, first fluting or second fluting connect beam body opening be provided with
It is painted with the highly elastic polyvinyl chloride fiber cloth of epoxy resin, improves the tensile strength of beam body breaking joint position,
The generation in crack at end seam can be reduced, thus improve the comfort level of bridge driving.
The second, the first fluting or the second fluting connect the opening of beam body and are provided with U-shaped zinc-iron skin, at U-shaped zinc
Being provided with Colophonium in iron sheet and soak cork, Colophonium soaks cork and compresses highly elastic polyvinyl chloride fiber cloth in beam body,
The impact on beam body of seeping water after bridge floor ftractures can be reduced, improve the durability of bridge.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not paying
On the premise of going out creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the facade structures schematic diagram of Large-span Precast bridge structure of the present invention.
Fig. 2 is that the cross section structure in the A-A direction as shown in Figure 1 of Large-span Precast bridge structure of the present invention shows
It is intended to.
Fig. 3 is that the cross section structure in the B-B direction as shown in Figure 1 of Large-span Precast bridge structure of the present invention shows
It is intended to.
Fig. 4 is the schematic cross-section of the power transmission assembly of Large-span Precast bridge structure of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly
Chu, be fully described by, it is clear that described embodiment be only a part of embodiment of the present invention rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation
The every other embodiment obtained under property work premise, broadly falls into the scope of protection of the invention.
In conjunction with seeing Fig. 1-Fig. 4, for the embodiment one of Large-span Precast bridge structure of the present invention.
The bridge floor continuous structure of the Large-span Precast bridge in the present embodiment, including beam body 1, wherein, Fig. 1 institute
It is shown as 1/2 facade structures schematic diagram of beam body.Beam body 1 is along its longitudinal (the most from left to right) successively
It is provided with the beam rib region 11 and beam wing plate region 12 being connected, beam rib region 11 and the top in beam wing plate region 12
Portion is provided with bridge floor in-situ layer 13；
Beam rib region 11 have many be intervally installed first across seam stress assembly 111, many to each other
Every arrange the first fastener inserts 112 and many groups of the 3rd fastener inserts 113 being intervally installed, first across
Seam stress assembly the 111, first fastener inserts 112 and the 3rd fastener inserts 113 are respectively along Large-span Precast bridge
Horizontal (the most from left to right) of beam is arranged, first is pre-buried across seam stress assembly 111 and first
Assembly 112 weldering even connects, and first even connects across seam stress assembly 111 and the weldering of the 3rd fastener inserts 113.
In the present embodiment, first across seam stress assembly 111 be steel bar stress, the first fastener inserts 112 is stress
Reinforcing bar, takes pre-buried mode to construct, the 3rd fastener inserts 113 be bending be the reinforcing bar of square shape, adopt
Take pre-buried mode to construct.First sets across seam stress assembly the 111, first fastener inserts 112 transpostion interval
Put, and be set between section reinforcing bar parallel two-by-two, the 3rd fastener inserts 113 respectively with first across seam stress assembly
111 is parallel with the first fastener inserts 112, and three welds formation reinforcing bar body.Wherein, the first fastener inserts 112
The mode being respectively adopted welding with the 3rd fastener inserts 113 is connected to same first across the two of seam stress assembly 111
Side becomes one group of bar connecting body, and the above-mentioned bar connecting body of many groups sets along the longitudinally spaced of Large-span Precast bridge
Put.
Beam wing plate region 12 has many second be intervally installed across seam stress assembly 121 and Duo Gen each other
Spaced second fastener inserts 122, second across seam stress assembly 121 and the second fastener inserts 122 difference
Along the lateral arrangement of Large-span Precast bridge, second welds across seam stress assembly 121 and the second fastener inserts 122
Even connect.
In the present embodiment, second across seam stress assembly 121 be steel bar stress, the second fastener inserts 122 is for being subject to
Power reinforcing bar, takes pre-buried mode to construct, and first across seam stress assembly the 111, first fastener inserts 112
Transpostion interval is arranged, and is set between section reinforcing bar parallel two-by-two, and both weld formation reinforcing bar body.Wherein,
Two fastener inserts 122 use the mode of welding to be connected to second becomes one group across the side of seam stress assembly 121
Bar connecting body, the above-mentioned bar connecting body of many groups is along the longitudinally spaced setting of Large-span Precast bridge.
As in figure 2 it is shown, the end in beam rib region 11 is provided with the first fluting 114, the first fluting 114 tie-beams
The position of the opening 114a of body 1 is provided with the first tensile members 2 and the first barriers 3, at the first barriers 3
In be provided with the first filling member 4, the first filling member 4 compresses the first tensile members 2 in beam body 1.
When being embodied as, the first tensile members 2 is the highly elastic polyvinyl chloride fiber cloth being painted with epoxy resin,
It is laid on the position of beam rib region 11 first fluting 114 side openings.In the present embodiment, it is painted with
The highly elastic polyvinyl chloride fiber cloth of epoxy resin can improve the tensile strength of beam body breaking joint position, it is possible to subtracts
The generation in crack at end seam less, thus improve the comfort level of bridge driving.
First barriers 3 is U-shaped zinc-iron skin, its opening to zinc-iron skin be pressed on the first fluting 114 opening
In the beam body of end 114a side, and the major part of its main body is installed in the first fluting 114, the first filling member
4 soak cork for Colophonium, and in square block, the bearing of trend along the first fluting 114 is arranged, and is installed in above-mentioned
In U-shaped zinc-iron skin.The U-shaped zinc-iron skin that the opening 114a of the first fluting 114 connection beam body 1 is provided with,
U-shaped zinc-iron skin is provided with Colophonium and soaks cork so that Colophonium soaks cork can compress highly elastic polyvinyl chloride
Fiber cloth is in beam body 1, it is possible to the impact on beam body of seeping water after reducing bridge floor cracking, improves the durable of bridge
Property.
Preferably, the position that U-shaped zinc-iron skin contacts with beam body 1 is set to seal, and it can play guarantee U
Type zinc-iron skin watertightness, the effect at sealing expansion joint.
Preferably, highly elastic polyvinyl chloride fiber cloth is set to bilayer, and after bridge floor can be ftractureed by it, entrance is oozed
Water plays more preferable iris action.
Further, the beam body 1 in beam rib region 11 is additionally provided with the first fastener inserts 112 phase weldering even the
One power transmission assembly 5, the first power transmission assembly 5 plays the effect that bridge floor is continuously coupled.
As shown in Figure 4, in the present embodiment, the first power transmission assembly 5 is the rod-like structure that cross section is rounded, its
Including: reinforcing bar 51, it is coated on the glass fabric 53 outside reinforcing bar 51 and is coated on glass fabric 53
Outside polyvinyl chloride rubber belt 54.It is arranged such, glass fabric 53 and its outside polyvinyl chloride rubber belt
54 have good barriering effect, it is possible to the infiltration corrosion reinforcing bar 51 entered after preventing bridge floor cracking, so that
Reinforcing bar 51 lost efficacy.
Preferably, the surface of reinforcing bar 51 is coated with phenolic ready mixed paint 52, and glass fabric 53 is set to double-decker,
It can play more preferable watertightness, keeps the performance of the first power transmission assembly 5, increases the service life.
As it is shown on figure 3, the end in beam wing plate region 12 is provided with the second fluting 123, the second fluting 123 connection
The position of the opening 123a of beam body 1 is provided with the second tensile members 2t and the second barriers 3t, intercepts second
Part 3t is provided with the second filling member 4t, the second filling member 4t and compresses the second tensile members 2t in beam body 1.
When being embodied as, the second tensile members 2t is the highly elastic polyvinyl chloride fiber cloth being painted with epoxy resin,
It is laid on the position of beam wing plate region 12 second fluting 123 side openings.In the present embodiment, brushing
The highly elastic polyvinyl chloride fiber cloth having epoxy resin can improve the tensile strength of beam body breaking joint position, it is possible to
Reduce the generation in crack at end seam, thus improve the comfort level of bridge driving.
Second barriers 3t is U-shaped zinc-iron skin, its opening to zinc-iron skin be pressed on the second fluting 123 opening
In the beam body of end opening end 123a side, and the major part of its main body is installed in the second fluting 123, and second
Filling member 4t is that Colophonium soaks cork, and in square block, the bearing of trend along the second fluting 123 is arranged, and fills
It is located in above-mentioned U-shaped zinc-iron skin.The U-shaped zinc that the opening 123a of the second fluting 123 connection beam body 1 is provided with
Iron sheet, is provided with Colophonium in U-shaped zinc-iron skin and soaks cork so that Colophonium soaks cork can compress high resiliency
Polyvinyl chloride fibre cloth is in beam body 1, it is possible to the impact on beam body of seeping water after reducing bridge floor cracking, improves bridge
The durability of beam.
Preferably, the position that U-shaped zinc-iron skin contacts with beam body 1 is set to seal, and it can play guarantee U
Type zinc-iron skin watertightness, the effect at sealing expansion joint.
Preferably, highly elastic polyvinyl chloride fiber cloth is set to bilayer, and after bridge floor can be ftractureed by it, entrance is oozed
Water plays more preferable iris action.
Further, the beam body 1 in beam wing plate region 12 is additionally provided with the second fastener inserts 122 phase weldering even
Second power transmission assembly 5t, the first power transmission assembly 5t play the effect that bridge floor is continuously coupled.
Further, the top in beam rib region 11 and beam wing plate region 12 is provided with bridge floor in-situ layer 13, this bridge
Face in-situ layer 13 uses transverse and longitudinal reinforcing bar interlaced arrangement to be web frame, it is ensured that the seriality of bridge floor.
Large-span Precast bridge structure in the present embodiment, when Specific construction, is first opened at the first fluting and second
Trench bottom installs U-shaped zinc-iron skin, soaks cork with Colophonium and clogs and clear up notch, and rear brushwork epoxy resin exists
It is made to paste closely with beam body to seal expansion joint in double-deck high resiliency polyethylene fiber cloth.And then, construction
Slotting position reinforcing bar, colligation in-situ layer bar-mat reinforcement, construction steel fibrin tissue adhesive.
Implement the Large-span Precast bridge structure of the present invention, have the advantages that
The first, first across seam stress assembly or second across seam stress assembly and the first fastener inserts or second pre-buried
Assembly is respectively along the lateral arrangement of Large-span Precast bridge, and first across seam stress assembly and the weldering of the first fastener inserts
Even connecting, second even connects across seam stress assembly and the weldering of the second fastener inserts；Beam rib region and beam wing plate region
Bottom be provided with the first fluting or second fluting, first fluting or second fluting connect beam body opening be provided with
It is painted with the highly elastic polyvinyl chloride fiber cloth of epoxy resin, improves the tensile strength of beam body breaking joint position,
The generation in crack at end seam can be reduced, thus improve the comfort level of bridge driving.
The second, the first fluting or the second fluting connect the opening of beam body and are provided with U-shaped zinc-iron skin, at U-shaped zinc
Being provided with Colophonium in iron sheet and soak cork, Colophonium soaks cork and compresses highly elastic polyvinyl chloride fiber cloth in beam body,
The impact on beam body of seeping water after bridge floor ftractures can be reduced, improve the durability of bridge.
Claims (7)
1. a Large-span Precast bridge structure, it is characterised in that include beam body, described beam body is along it longitudinally
It is sequentially provided with the beam rib region being connected and beam wing plate region, described beam rib region and described beam wing plate region
Top is provided with bridge floor in-situ layer；
Described beam rib region has many first be intervally installed and is spaced across seam stress assembly and Duo Gen
The first fastener inserts arranged, described first across seam stress assembly and described first fastener inserts respectively along greatly across
The lateral arrangement of degree precast bridge, described first even connects across seam stress assembly and described first fastener inserts weldering；
Described beam wing plate region have many be intervally installed second across seam stress assembly and Duo Gen to each other
Every the second fastener inserts arranged, described second is big across seam stress assembly and described second fastener inserts edge respectively
The lateral arrangement of span precast bridge, described second across seam stress assembly and described second fastener inserts weldering even phase
Connect；
The end in described beam rib region is provided with the first fluting, and the opening that described first fluting connects beam body is provided with
First tensile members and the first barriers, be provided with the first filling member in described first barriers, and described first fills out
Fill part and compress described first tensile members in described beam body；
The end in described beam wing plate region is provided with the second fluting, and the opening that described second fluting connects beam body sets
There are the second tensile members and the second barriers, described second barriers is provided with the second filling member, described second
Filling member compresses described second tensile members in described beam body.
2. Large-span Precast bridge structure as claimed in claim 1, it is characterised in that described first tension
Part and described second tensile members are respectively painted with the highly elastic polyvinyl chloride fiber cloth of epoxy resin.
3. Large-span Precast bridge structure as claimed in claim 2, it is characterised in that described high resiliency gathers
Vinyl chloride fibers cloth is set to bilayer.
4. Large-span Precast bridge structure as claimed in claim 1, it is characterised in that described first intercepts
Part and described second barriers are respectively U-shaped zinc-iron skin.
5. Large-span Precast bridge structure as claimed in claim 4, it is characterised in that described U-shaped zinc-iron
The position that skin contacts with beam body is set to seal.
6. Large-span Precast bridge structure as claimed in claim 1, it is characterised in that described first fills
Part and described second filling member are respectively Colophonium and soak cork.
7. Large-span Precast bridge structure as claimed in claim 1, it is characterised in that described beam rib region
Having many groups of the 3rd fastener inserts being intervally installed, described 3rd fastener inserts is along Large-span Precast bridge
Lateral arrangement, described first even connects across seam stress assembly and described 3rd fastener inserts weldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129200.1A CN104711922B (en) | 2015-03-24 | 2015-03-24 | A kind of Large-span Precast bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510129200.1A CN104711922B (en) | 2015-03-24 | 2015-03-24 | A kind of Large-span Precast bridge structure |
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| Publication Number | Publication Date |
|---|---|
| CN104711922A CN104711922A (en) | 2015-06-17 |
| CN104711922B true CN104711922B (en) | 2017-01-04 |
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| CN202658519U (en) * | 2012-07-10 | 2013-01-09 | 重庆亲禾预制品有限公司 | Bridge expansion joint structure |
| CN202787067U (en) * | 2012-08-02 | 2013-03-13 | 浙江宏达建设集团有限公司 | Bridge seamless type expansion joint structure |
| CN103205929A (en) * | 2013-04-17 | 2013-07-17 | 大连理工大学 | Distributed crack type seamless expansion joint |
| CN204039912U (en) * | 2014-08-28 | 2014-12-24 | 西安公路研究院 | Based on the bridge seamless process stretching device of reinforcing bar of putting more energy into |
| CN204151672U (en) * | 2014-10-23 | 2015-02-11 | 中铁十六局集团有限公司 | A kind of compound bridge expanssion joint |
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| CN104711922A (en) | 2015-06-17 |
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Inventor after: Peng Dongmu Inventor after: Liu Yan Inventor after: Qi Wei Inventor after: Chen Yiyan Inventor after: Liang Yuliu Inventor after: Xu Yousheng Inventor after: Jin Yong Inventor after: Charlie Fei Erfeide Inventor before: Peng Dongmu Inventor before: Liu Yan Inventor before: Qi Wei Inventor before: Chen Yiyan Inventor before: Liang Yuliu Inventor before: Xu Yousheng Inventor before: Jin Yong Inventor before: Charlie Fei Erfeide |