CN104711922A - Large-span prefabricated bridge structure - Google Patents
Large-span prefabricated bridge structure Download PDFInfo
- Publication number
- CN104711922A CN104711922A CN201510129200.1A CN201510129200A CN104711922A CN 104711922 A CN104711922 A CN 104711922A CN 201510129200 A CN201510129200 A CN 201510129200A CN 104711922 A CN104711922 A CN 104711922A
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- CN
- China
- Prior art keywords
- fastener inserts
- beam body
- precast bridge
- seam
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims description 27
- 239000004744 fabric Substances 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 claims description 23
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 20
- 239000004800 polyvinyl chloride Substances 0.000 claims description 20
- 230000004888 barrier function Effects 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000007799 cork Substances 0.000 claims description 13
- 239000011521 glass Substances 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 abstract 10
- 238000000429 assembly Methods 0.000 abstract 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 238000005336 cracking Methods 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000004567 concrete Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 108010080379 Fibrin Tissue Adhesive Proteins 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000035515 penetration Effects 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
Abstract
The invention discloses a large-span prefabricated bridge structure. The large-span prefabricated bridge structure comprises a beam body, wherein the beam body is sequentially provided with a beam rib area and a beam wing plate area which are connected in the longitudinal direction of the beam body. Bridge floor cast-in-place layers are arranged on the tops of the beam rib area and the beam wing plate area. The beam rib area is provided with a plurality of first cross-joint force-bearing assemblies which are arranged at intervals and a plurality of first buried assemblies arranged at intervals. The first cross-joint force-bearing assemblies and the first embedded assemblies are welded and connected. The beam wing plate area is provided with a plurality of second cross-joint force-bearing assemblies which are arranged at intervals and a plurality of second buried assemblies arranged at intervals. The second cross-joint force-bearing assemblies and the second buried assemblies are arranged in the transverse direction of a large-span prefabricated bridge. The second cross-joint force-bearing assemblies and the second buried assemblies are welded and connected. By means of the large-span prefabricated bridge structure, the tensile strength of breaking joint positions is improved, and therefore cracks at end joints are reduced, the influences of water seepage caused after a bridge floor cracks on the beam body are reduced, and the durability of the bridge is improved.
Description
Technical field
The present invention relates to engineering field, particularly relate to a kind of being applied in across the Large-span Precast bridge construction of footpath at more than 35m.
Background technology
Precast hollow slab and Precast T-Beam are conventional form of structure, and this kind of structure can reduce the impact of construction on road, and this structure all need be done bridge floor at breaking joint place and designs continuously.
At present, the most frequently used bridge floor conitnuous forms have three kinds: 1, with the consolidation continuous slab that rectangular reinforced concrete plate does, this form steel using amount is more, and bear larger tensile stress due to concrete, and easily ftracture, rain penetration easily causes corrosion of steel bar.2, with the hinged continuous slab that armored concrete slab does, although this form stress performance improves, because plate end disconnects can discharge its tensile stress, complex structure, construction is also inconvenient; 3, make connecting rod with bar reinforcement, namely at the think bar connection that the in-situ layer end intensity of adjacent holes girder end face is higher, rely on reinforcing bar to transmit horizontal force, reinforcing bar two ends are anchored in the in-situ layer of back end.Bed course soft in reinforcing bar wrapping only in beam-ends two fulcrum length range, reinforcing bar can do small moving up and down in bed course, rotates owing to bending the beam-ends caused after load-bearing to adapt to beam body.Flexible cushion has good antiseptic property, and reinforcing bar is separated with concrete completely, and reinforcing bar does not bear the pressure of locally wheel load.
Experience shows, along with the increase of precast beam span, larger across interspacing in advance between seam, and therefore after beam body load-bearing, large, the beam-ends of flexure rotates large, adopts above-mentioned bridge floor continuation apparatus easily cracking phenomena to occur, affects durability and the road-ability of bridge floor use.This kind of bridge floor continuation apparatus at present maximum being only limitted to is applied in 35m across within footpath.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of Large-span Precast bridge construction, improves the tensile strength of breaking joint position, to reduce the generation in end crack, seam place.
Another technical problem to be solved by this invention is, the impact of seeping water on beam body after reducing bridge floor cracking, improves the durability of bridge.
In order to solve the problems of the technologies described above, The embodiment provides a kind of Large-span Precast bridge construction, comprise beam body, beam body is longitudinally provided with the beam rib region and beam wing plate region that are connected successively 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 be intervally installed across the stressed assembly of seam and Duo Gen be intervally installed, first across the stressed assembly of seam and the first fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, first across the stressed assembly of seam with the first fastener inserts is soldered connects; Beam wing plate region has many second the second fastener inserts be intervally installed across the stressed assembly of seam and Duo Gen be intervally installed, second across the stressed assembly of seam and the second fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, second across the stressed assembly of seam with the second fastener inserts is soldered connects; The bottom in beam rib region is provided with the first fluting, and the openend of the first fluting tie-beam body is provided with the first tensile members and the first barriers, and in the first barriers, be provided with the first filling member, the first filling member compresses the first tensile members at Liang Tishang; The bottom in beam wing plate region is provided with the second fluting, and the openend of the second fluting tie-beam body is provided with the second tensile members and the second barriers, and in the second barriers, be provided with the second filling member, the second filling member compresses the second tensile members at Liang Tishang.
Wherein, the first tensile members and the second tensile members are respectively the highly elastic polyvinyl chloride cloth being coated with and being brushed with epoxy resin.
Wherein, highly elastic polyvinyl chloride 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 sealing.
Wherein, the first filling member and the second filling member are respectively pitch immersion cork.
Wherein, beam rib region has many groups of the 3rd fastener inserts be intervally installed, and the 3rd fastener inserts is along the lateral arrangement of Large-span Precast bridge, and first across the stressed assembly of seam with the 3rd fastener inserts is soldered connects.
Wherein, the Liang Tizhong in beam rib region is also provided with the first power transmission assembly mutually soldered with the first fastener inserts; The Liang Tizhong in beam wing plate region is also provided with the second power transmission assembly mutually soldered with the second fastener inserts.
Wherein, the first power transmission assembly and the second power transmission assembly comprise respectively: reinforcing bar, be coated on the glass fabric of reinforcing bar outside and be coated on the polyvinyl chloride rubber belt of glass fabric outside.
Wherein, the surface of reinforcing bar is coated with phenolic ready mixed paint, and glass fabric is set to double-decker.
Large-span Precast bridge construction provided by the present invention, has following beneficial effect:
The first, first across stitching stressed assembly or second across stitching stressed assembly and the first fastener inserts or the second fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, first across the stressed assembly of seam with the first fastener inserts is soldered connects, and second across the stressed assembly of seam with the second fastener inserts is soldered connects; The bottom in beam rib region and beam wing plate region is provided with the first fluting or the second fluting, the openend of the first fluting or the second fluting tie-beam body is provided with the highly elastic polyvinyl chloride cloth being coated with and being brushed with epoxy resin, improve the tensile strength of beam body breaking joint position, the generation in end crack, seam place can be reduced, thus improve the comfort level of bridge driving.
The second, the openend of the first fluting or the second fluting tie-beam body is provided with U-shaped zinc-iron skin, in U-shaped zinc-iron skin, be provided with pitch soak cork, pitch soaks cork and compresses highly elastic polyvinyl chloride cloth at Liang Tishang, the impact of seeping water on beam body after can reducing bridge floor cracking, improves the durability of bridge.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the facade structures schematic diagram of Large-span Precast bridge construction of the present invention.
Fig. 2 is the cross section structure schematic diagram in the A-A direction as shown in Figure 1 of Large-span Precast bridge construction of the present invention.
Fig. 3 is the cross section structure schematic diagram in the B-B direction as shown in Figure 1 of Large-span Precast bridge construction of the present invention.
Fig. 4 is the schematic cross-section of the power transmission assembly of Large-span Precast bridge construction of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In conjunction with see Fig. 1-Fig. 4, it is the embodiment one of Large-span Precast bridge construction of the present invention.
The bridge floor continuous structure of the Large-span Precast bridge in the present embodiment, comprises beam body 1, wherein, Figure 1 shows that 1/2 facade structures schematic diagram of beam body.Beam body 1 is provided with along its longitudinal (as shown in the figure from left to right) the beam rib region 11 and beam wing plate region 12 that are connected successively, and the top in beam rib region 11 and beam wing plate region 12 is provided with bridge floor in-situ layer 13;
Beam rib region 11 have many be intervally installed first across seam stressed assembly 111, many first fastener inserts 112 be intervally installed and many groups of the 3rd fastener inserts 113 be intervally installed, first arranges along the transverse direction (as shown in Figure 2 from left to right) of Large-span Precast bridge respectively across stressed assembly 111, first fastener inserts 112 of seam and the 3rd fastener inserts 113, first across the stressed assembly 111 of seam with the first fastener inserts 112 is soldered connects, and first across the stressed assembly 111 of seam with the 3rd fastener inserts 113 is soldered connects.
In the present embodiment, first across seam stressed assembly 111 be steel bar stress, the first fastener inserts 112 is steel bar stress, takes pre-buried mode to construct, and the 3rd fastener inserts 113 is the reinforcing bar of square shape for bending, takes pre-buried mode to construct.First is arranged across stressed assembly 111, first fastener inserts 112 transpostion interval of seam, and is set to parallel between two between section reinforcing bar, and the 3rd fastener inserts 113 is parallel with the first fastener inserts 112 across stitching stressed assembly 111 with first respectively, and three welds and forms reinforcing bar body.Wherein, the first fastener inserts 112 and the 3rd fastener inserts 113 adopt the mode of welding to be connected to same first respectively becomes one group of bar connecting body across the both sides of stitching stressed assembly 111, and the above-mentioned bar connecting body of many groups is arranged along the longitudinal separation of Large-span Precast bridge.
Beam wing plate region 12 has many second the second fastener inserts 122 be intervally installed across the stressed assembly 121 of seam and Duo Gen be intervally installed, second across the stressed assembly 121 of seam and the second fastener inserts 122 respectively along the lateral arrangement of Large-span Precast bridge, second across the stressed assembly 121 of seam with the second fastener inserts 122 is soldered connects.
In the present embodiment, second across seam stressed assembly 121 be steel bar stress, second fastener inserts 122 is steel bar stress, pre-buried mode is taked to construct, first is arranged across stressed assembly 111, first fastener inserts 112 transpostion interval of seam, and being set to parallel between two between section reinforcing bar, both weld and form reinforcing bar body.Wherein, the second fastener inserts 122 adopts the mode of welding to be connected to second becomes one group of bar connecting body across the side of stitching stressed assembly 121, and the above-mentioned bar connecting body of many groups is arranged along the longitudinal separation of Large-span Precast bridge.
As shown in Figure 2, the bottom in beam rib region 11 is provided with the first fluting 114, the position of the openend 114a of the first fluting 114 tie-beam bodies 1 is provided with the first tensile members 2 and the first barriers 3, is provided with the first filling member 4, first filling member 4 and compresses the first tensile members 2 on beam body 1 in the first barriers 3.
During concrete enforcement, the first tensile members 2 is be coated with the highly elastic polyvinyl chloride cloth being brushed with epoxy resin, and it is laid on beam rib region 11 first and slots on the position of 114 openends, side.In the present embodiment, be coated with the tensile strength that the highly elastic polyvinyl chloride cloth being brushed with epoxy resin can improve beam body breaking joint position, the generation in end crack, seam place can be reduced, 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 Liang Tishang of the first 114a side, fluting 114 openend, and the major part of its main body is installed in the first fluting 114, first filling member 4 is pitch immersion cork, in square, bearing of trend along the first fluting 114 is arranged, and is installed in above-mentioned U-shaped zinc-iron skin.The U-shaped zinc-iron skin that the first openend 114a slotting 114 tie-beam bodies 1 is provided with, in U-shaped zinc-iron skin, be provided with pitch soak cork, make pitch soak cork and can compress highly elastic polyvinyl chloride cloth on beam body 1, the impact of seeping water on beam body after can reducing bridge floor cracking, improves the durability of bridge.
Preferably, the position that U-shaped zinc-iron skin contacts with beam body 1 is set to sealing, and it can play the effect ensureing U-shaped zinc-iron skin watertightness, sealing shrinkage joint.
Preferably, highly elastic polyvinyl chloride cloth is set to bilayer, and it can play better iris action to the infiltration entered after bridge floor cracking.
Further, be also provided with first power transmission assembly 5, the first power transmission assembly 5 mutually soldered with the first fastener inserts 112 in the beam body 1 in beam rib region 11 and play the effect that bridge floor connects continuously.
As shown in Figure 4, in the present embodiment, the first power transmission assembly 5 is the rounded rod-like structure in cross section, and it comprises: reinforcing bar 51, be coated on the glass fabric 53 of reinforcing bar 51 outside and be coated on the polyvinyl chloride rubber belt 54 of glass fabric 53 outside.Setting like this, the polyvinyl chloride rubber belt 54 of glass fabric 53 and its outside has good barriering effect, the infiltration corrosion reinforcing bar 51 entered after can preventing bridge floor from ftractureing, thus reinforcing bar 51 was 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, and it can play better watertightness, keeps the performance of the first power transmission assembly 5, increases the service life.
As shown in Figure 3, the bottom in beam wing plate region 12 is provided with the second fluting 123, the position of the openend 123a of the second fluting 123 tie-beam bodies 1 is provided with the second tensile members 2t and the second barriers 3t, in the second barriers 3t, be provided with the second filling member 4t, the second filling member 4t compresses the second tensile members 2t on beam body 1.
During concrete enforcement, the second tensile members 2t is coated with the highly elastic polyvinyl chloride cloth being brushed with epoxy resin, and it is laid on beam wing plate region 12 second and slots on the position of 123 openends, side.In the present embodiment, be coated with the tensile strength that the highly elastic polyvinyl chloride cloth being brushed with epoxy resin can improve beam body breaking joint position, the generation in end crack, seam place can be reduced, 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 Liang Tishang of the second 123a side, openend, fluting 123 openend, and the major part of its main body is installed in the second fluting 123, second filling member 4t is that pitch soaks cork, in square, bearing of trend along the second fluting 123 is arranged, and is installed in above-mentioned U-shaped zinc-iron skin.The U-shaped zinc-iron skin that the second openend 123a slotting 123 tie-beam bodies 1 is provided with, in U-shaped zinc-iron skin, be provided with pitch soak cork, make pitch soak cork and can compress highly elastic polyvinyl chloride cloth on beam body 1, the impact of seeping water on beam body after can reducing bridge floor cracking, improves the durability of bridge.
Preferably, the position that U-shaped zinc-iron skin contacts with beam body 1 is set to sealing, and it can play the effect ensureing U-shaped zinc-iron skin watertightness, sealing shrinkage joint.
Preferably, highly elastic polyvinyl chloride cloth is set to bilayer, and it can play better iris action to the infiltration entered after bridge floor cracking.
Further, be also provided with the second power transmission assembly 5t mutually soldered with the second fastener inserts 122 in the beam body 1 in beam wing plate region 12, the first power transmission assembly 5t plays the effect that bridge floor connects continuously.
Further, the top in beam rib region 11 and beam wing plate region 12 is provided with bridge floor in-situ layer 13, and this bridge floor in-situ layer 13 adopts transverse and longitudinal reinforcing bar interlaced arrangement to be web frame, ensure that the continuity of bridge floor.
Large-span Precast bridge construction in the present embodiment is when Specific construction, first at the first fluting and the second fluting bottom, U-shaped zinc-iron skin is installed, soak cork with pitch clog and clear up notch, rear brushwork epoxy resin makes itself and beam body paste closely to seal shrinkage joint in double-deck high resiliency PEF cloth.And then, construction slotting position reinforcing bar, colligation in-situ layer steel mesh reinforcement, construction steel fibrin tissue adhesive.
Implement Large-span Precast bridge construction of the present invention, there is following beneficial effect:
The first, first across stitching stressed assembly or second across stitching stressed assembly and the first fastener inserts or the second fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, first across the stressed assembly of seam with the first fastener inserts is soldered connects, and second across the stressed assembly of seam with the second fastener inserts is soldered connects; The bottom in beam rib region and beam wing plate region is provided with the first fluting or the second fluting, the openend of the first fluting or the second fluting tie-beam body is provided with the highly elastic polyvinyl chloride cloth being coated with and being brushed with epoxy resin, improve the tensile strength of beam body breaking joint position, the generation in end crack, seam place can be reduced, thus improve the comfort level of bridge driving.
The second, the openend of the first fluting or the second fluting tie-beam body is provided with U-shaped zinc-iron skin, in U-shaped zinc-iron skin, be provided with pitch soak cork, pitch soaks cork and compresses highly elastic polyvinyl chloride cloth at Liang Tishang, the impact of seeping water on beam body after can reducing bridge floor cracking, improves the durability of bridge.
Claims (10)
1. a Large-span Precast bridge construction, is characterized in that, comprises beam body, and described beam body is longitudinally provided with the beam rib region and beam wing plate region that are connected successively along it, and the top in described beam rib region and described beam wing plate region is provided with bridge floor in-situ layer;
Described beam rib region has many first the first fastener inserts be intervally installed across the stressed assembly of seam and Duo Gen be intervally installed, described first across the stressed assembly of seam and described first fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, described first across the stressed assembly of seam with described first fastener inserts is soldered connects;
Described beam wing plate region has many second the second fastener inserts be intervally installed across the stressed assembly of seam and Duo Gen be intervally installed, described second across the stressed assembly of seam and described second fastener inserts respectively along the lateral arrangement of Large-span Precast bridge, described second across the stressed assembly of seam with described second fastener inserts is soldered connects;
The bottom in described beam rib region is provided with the first fluting, the openend of described first fluting tie-beam body is provided with the first tensile members and the first barriers, in described first barriers, be provided with the first filling member, described first filling member compresses described first tensile members on described beam body;
The bottom in described beam wing plate region is provided with the second fluting, the openend of described second fluting tie-beam body is provided with the second tensile members and the second barriers, in described second barriers, be provided with the second filling member, described second filling member compresses described second tensile members on described beam body.
2. Large-span Precast bridge construction as claimed in claim 1, is characterized in that, described first tensile members and described second tensile members are respectively the highly elastic polyvinyl chloride cloth being coated with and being brushed with epoxy resin.
3. Large-span Precast bridge construction as claimed in claim 2, it is characterized in that, described highly elastic polyvinyl chloride cloth is set to bilayer.
4. Large-span Precast bridge construction as claimed in claim 1, it is characterized in that, described first barriers and described second barriers are respectively U-shaped zinc-iron skin.
5. Large-span Precast bridge construction as claimed in claim 4, it is characterized in that, the position that described U-shaped zinc-iron skin contacts with beam body is set to sealing.
6. Large-span Precast bridge construction as claimed in claim 1, is characterized in that, described first filling member and described second filling member are respectively pitch and soak cork.
7. Large-span Precast bridge construction as claimed in claim 1, it is characterized in that, described beam rib region has many groups of the 3rd fastener inserts be intervally installed, described 3rd fastener inserts is along the lateral arrangement of Large-span Precast bridge, and described first across the stressed assembly of seam with described 3rd fastener inserts is soldered connects.
8. Large-span Precast bridge construction as claimed in claim 1, is characterized in that, be also provided with the first power transmission assembly mutually soldered with described first fastener inserts in the described beam body in described beam rib region; The second power transmission assembly mutually soldered with described second fastener inserts is also provided with in the described beam body in described beam wing plate region.
9. Large-span Precast bridge construction as claimed in claim 8, it is characterized in that, described first power transmission assembly and described second power transmission assembly comprise respectively: reinforcing bar, be coated on the glass fabric of described reinforcing bar outside and be coated on the polyvinyl chloride rubber belt of described glass fabric outside.
10. Large-span Precast bridge construction as claimed in claim 9, it is characterized in that, the surface of described reinforcing bar is coated with phenolic ready mixed paint, and described glass fabric is set to double-decker.
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104711922A true CN104711922A (en) | 2015-06-17 |
| CN104711922B CN104711922B (en) | 2017-01-04 |
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| CN201510129200.1A Active CN104711922B (en) | 2015-03-24 | 2015-03-24 | A kind of Large-span Precast bridge structure |
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| KR101142195B1 (en) * | 2009-05-14 | 2012-05-07 | (주)네오이엔지 | Compound for using an expansion joint, method for making the compound, expansion joint utilizing electricity polymer and method for constructing the expansion joint |
| 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 |
| JP2013159953A (en) * | 2012-02-03 | 2013-08-19 | Birudorando:Kk | Joint structure of concrete floor slab end of bridge |
| 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 |
-
2015
- 2015-03-24 CN CN201510129200.1A patent/CN104711922B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101142195B1 (en) * | 2009-05-14 | 2012-05-07 | (주)네오이엔지 | Compound for using an expansion joint, method for making the compound, expansion joint utilizing electricity polymer and method for constructing the expansion joint |
| JP2013159953A (en) * | 2012-02-03 | 2013-08-19 | Birudorando:Kk | Joint structure of concrete floor slab end of bridge |
| 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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| Publication number | Publication date |
|---|---|
| CN104711922B (en) | 2017-01-04 |
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