CN109024320A - A kind of bridge meeting new and old bridge differential settlement spells wide construction and construction method - Google Patents
A kind of bridge meeting new and old bridge differential settlement spells wide construction and construction method Download PDFInfo
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- CN109024320A CN109024320A CN201811106984.6A CN201811106984A CN109024320A CN 109024320 A CN109024320 A CN 109024320A CN 201811106984 A CN201811106984 A CN 201811106984A CN 109024320 A CN109024320 A CN 109024320A
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- 238000010276 construction Methods 0.000 title claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 149
- 239000010959 steel Substances 0.000 claims abstract description 149
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 38
- 238000002513 implantation Methods 0.000 claims abstract description 34
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 239000002674 ointment Substances 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims 1
- 101100027969 Caenorhabditis elegans old-1 gene Proteins 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005336 cracking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- 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
Abstract
The invention discloses a kind of bridges for meeting new and old bridge differential settlement to spell wide construction and construction method, and it includes old bridge, new bridge, angle steel and connector that bridge, which spells wide construction portion,；Connector includes junction steel plate, implantation reinforcing bar, pre-embedded steel slab, bolt connection assembly and separation layer；Bolt connection assembly includes screw rod, nut I, nut II and backing plate；Nose circle shape rectangular opening is provided on pre-embedded steel slab；Longitudinal joint along the bridge is formed between old bridge and new bridge.The configuration of the present invention is simple, design are reasonable, and it is safe and reliable, new bridge and Jiu Qiao are fixed together by connector, and the nose circle shape rectangular opening up and down for bolt connection assembly is equipped on pre-embedded steel slab, both it is poor new, old bridge Vertical Settlement had been able to satisfy, it can guarantee that new, old bridge spells wide construction to the bridge that securely connects with direction across bridge along bridge again, can effectively avoid causing superstructure beam body and bridge deck pavement to crack, destroy due to new, old bridge differential settlement.
Description
Technical field
The invention belongs to highway bridges to spell wide technical field, be related to a kind of wide construction of bridge spelling for meeting new and old bridge differential settlement
And construction method.
Background technique
With China's rapid development of economy, the volume of traffic also increases severely therewith, and the traffic capacity of part highway has been unable to satisfy
The demand of the volume of traffic can effectively increase highway capacity and biggish society's warp to widening for existing highway
Ji benefit.When both sides of highway increases a lane, the bridge width of new bridge is smaller, and bridge pier, abutment are only column, if new bridge
It is completely independent with old bridge, new bridge anti-overturning is poor.Current way mainly has new bridge infrastructure to separate with old bridge, top structure
Make that beam body is connected with old bridge and new bridge superstructure and infrastructure are connected two kinds with old bridge.Since new bridge and old bridge are built
Time phase difference is larger, and the foundation settlement of new, old bridge differs greatly, because differential settlement cause the new, joint Jiu Qiao occur through crack,
Beam body is damaged, influences bridge structure safe and durability.
Patent No. CN201611005203.5 disclose a kind of bridge using corrugated sheet steel connector spell wide construction and
Its construction method, which, which spells wide construct, can guarantee that new bridge girder indulges bridge to deformation not by the constraint of old bridge girder, reduces and spells width
The direction across bridge bending deformation that new, old bridge afterwards generates avoids old bridge seat that failure by shear occurs, and guarantees to spell making for wide axle casing
Use performance；Shorten construction period, there is preferable economic benefit, but the patent does not propose the technical side to solve the above problems
Case.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of simple structure and reasonable designs, safe and reliable, guarantee new, old
Bridge spells wide construction to the bridge that securely connects with direction across bridge along bridge, can effectively avoid leading to top due to new, old bridge differential settlement
The bridge for meeting new and old bridge differential settlement of structure beam body and bridge deck pavement cracking, destruction spells wide construction and construction method.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of wide construction of bridge spelling meeting new and old bridge differential settlement, including old bridge, new bridge and connector；The old bridge and new bridge
Between form longitudinal joint along the bridge；Angle steel, angle steel are mounted on the old bridge of longitudinal joint two sides and the bridge deck pavement of new bridge
Edge is along the bridge arranged；The old bridge and new bridge are fixedly connected with by connector；The connector includes junction steel plate, implantation
Implantation reinforcing bar in old bridge and the pre-embedded steel slab being embedded in new bridge；The implantation reinforcing bar and pre-embedded steel slab pass through junction steel plate
It is connected；One end of the junction steel plate is mutually welded with implantation reinforcing bar, and component and pre-embedded steel slab phase is bolted in the other end
Even；Separation layer is provided between the junction steel plate and pre-embedded steel slab；Nose circle shape rectangular opening is provided on the pre-embedded steel slab,
Nose circle shape rectangular opening is vertically arranged on pre-embedded steel slab；The bolt connection assembly includes screw rod；One end of the screw rod
It is equipped with nut I, the other end sequentially passes through nose circle shape rectangular opening and junction steel plate on pre-embedded steel slab, and in the another of screw rod
End is equipped with nut II；Backing plate is equipped on one section of screw rod between pre-embedded steel slab and nut I；Separation layer is used with good
Bonding, extensibility material are made into, and angle steel can protect the deck paving of old bridge and new bridge at longitudinal joint, nose circle shape rectangular opening and every
Absciss layer can satisfy the differential settlement of new bridge and old bridge.
As a further explanation of the present invention, the longitudinal joint spacing between the new bridge and old bridge is set as 20mm；It is described
Backing plate with a thickness of 6~10mm.Backing plate planar dimension is determined according to the principle of equal strength of pre-embedded steel slab and junction steel plate.
As a further explanation of the present invention, multiple groups connector, every group of company are along the bridge equipped in Yan Jiuqiao and new bridge
Fitting is taken root in including two into reinforcing bar, two groups of bolt connection assemblies, one piece of pre-embedded steel slab and one piece of junction steel plate；
The implantation reinforcing bar is along the bridge placed with vertical bridge floor along old bridge, and the diameter for being implanted into reinforcing bar is 20~28mm, is planted
Entering the depth that reinforcing bar is implanted into old bridge is 150~250mm, and the spacing between two implantation reinforcing bars is 100mm；The pre-embedded steel slab
It is 170~250mm with a thickness of 6~10mm, width, the pre-buried length into new bridge is 150~250mm；The pre-embedded steel slab
Side is vertical with new bridge bridge floor, along the bridge placement of the pre-embedded steel slab along new bridge；The junction steel plate is to be added using straight steel plate
Work at groove profile steel plate, junction steel plate with a thickness of 6~10mm, the width of junction steel plate is 170~250mm；Two groups of bolts connect
Connected components are 100mm along the spacing along the bridge of new bridge.
As a further explanation of the present invention, every group of connector is 300~400mm along arrangement spacing along the bridge.
As a further explanation of the present invention, the horizontal spacing at the described implantation reinforcing bar and old bridge edge be 250~
400mm；The horizontal spacing of the pre-embedded steel slab and new bridge edge is 250~400mm.
As a further explanation of the present invention, the anchor hole of the junction steel plate is circle, and anchor hole is from junction steel plate
The distance at edge is at least 30mm.Anchor hole conveniently interspersed can install screw rod.
As a further explanation of the present invention, the radius in the nose circle shape hole at the nose circle shape rectangular opening both ends with connect steel
Anchor bolt pore radius is identical on plate, and nose circle shape rectangular opening is at least 30mm with a distance from pre-embedded steel slab edge.On pre-embedded steel slab
The length of nose circle shape rectangular opening is identical as the differential settlement of new bridge, old bridge.
As a further explanation of the present invention, the separation layer is made into using pitch ointment, separation layer with a thickness of 5~
10mm。
As a further explanation of the present invention, one side of the angle steel and deck paving either flush, another side setting
In the edge in Calculation of Thickness of Bridge Deck Pavement direction.
A kind of bridge meeting new and old bridge differential settlement spells the construction method of wide construction, comprising the following steps:
Step 1 determines the longitudinal joint distance being arranged between old bridge and new bridge, and the pile foundation position of new bridge is determined according to longitudinal joint distance；It applies
Work completes new bridge infrastructure, prefabricated new bridge, and pre-embedded steel slab is arranged in the new bridge inside edge adjacent with old bridge,
Nose circle shape rectangular opening is set on pre-embedded steel slab；
Step 2 cuts the anti-collision wall on the outside of old bridge, installs implantation reinforcing bar in old bridge edge；
The beam body of new bridge is completed in step 3, construction；
Step 4, junction steel plate one end and implantation reinforcement welding, the other end are bolted component and are connected with pre-embedded steel slab,
Pitch ointment separation layer is equipped between junction steel plate and pre-embedded steel slab；
Step 5, construct the Central Plains Jiu Qiao anti-collision wall at and new bridge bridge deck pavement, and deck paving longitudinal joint edge be arranged angle
Steel.
Compared with prior art, the present invention have the utility model has the advantages that
1. new bridge and Jiu Qiao are fixed together by the present invention by connector, and are equipped on pre-embedded steel slab for being bolted group
The up and down nose circle shape rectangular opening of part, it is poor to be not only able to satisfy new, old bridge Vertical Settlement, but can guarantee new, old bridge along bridge to and it is horizontal
Bridge spells wide construction to the bridge securely connected, provides a kind of safe and reliable and economic connecting structure to spell wide bridge.
It is connected 2. the present invention carries out non-fully rigid attachment with old bridge to new bridge using connector, solves the wide bridge of spelling
Because superstructure beam body caused by the differential settlement between new, old bridge and bridge deck pavement cracking, destroy the problems such as, it is practical,
With good economic efficiency and social benefit.
3. angle steel is arranged by the deck paving edge at the longitudinal joint between new bridge and old bridge in the present invention, can effectively prevent
Wheel is to deck paving damage layer caused by the deck paving local action at longitudinal joint.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the amplification assumption diagram in the present invention at A.
Fig. 3 is the right side structural representation in Fig. 2 at B.
Fig. 4 is the left view structural representation in Fig. 2 at B.
Appended drawing reference: the old bridge of 1-, 2- new bridge, 31- implantation reinforcing bar, 32- pre-embedded steel slab, 33- junction steel plate, 34- separation layer,
35- screw rod, 36- backing plate, 37- nut I, 38- nose circle shape rectangular opening, 39- nut II, 4- angle steel.
Specific embodiment
The following further describes the present invention with reference to the drawings.
Embodiment 1:
A kind of wide construction of bridge spelling meeting new and old bridge differential settlement, including old bridge 1, new bridge 2 and connector；1 He of old bridge
Longitudinal joint along the bridge is formed between new bridge 2；Angle steel is mounted on the old bridge of longitudinal joint two sides and the bridge deck pavement of new bridge
4, angle steel 4 is along being along the bridge arranged；
The old bridge 1 and new bridge 2 is fixedly connected with by connector；
The connector includes junction steel plate 33, the implantation reinforcing bar 31 in the old bridge 1 of implantation and the pre-buried steel being embedded in new bridge 2
Plate 32；
The implantation reinforcing bar 31 is connected with pre-embedded steel slab 32 by junction steel plate 33；One end of the junction steel plate 33 and plant
Enter the welding of 31 phase of reinforcing bar, the other end is bolted component and is connected with pre-embedded steel slab 32；The junction steel plate 33 with it is pre-buried
Separation layer 34 is provided between steel plate 32；Nose circle shape rectangular opening 38, nose circle shape rectangular opening 38 are provided on the pre-embedded steel slab 32
It is vertically arranged on pre-embedded steel slab 32；
The bolt connection assembly includes screw rod 35；One end of the screw rod 35 is equipped with nut I 37, and the other end is successively worn
Nose circle shape rectangular opening 38 and the junction steel plate 33 on pre-embedded steel slab 32 are crossed, and is equipped with nut II on the other end of screw rod 35
39；Backing plate 36 is equipped on one section of screw rod between pre-embedded steel slab 32 and nut I 37；Separation layer 34 is good viscous using having
Knot, extensibility material are made into, and angle steel can protect the deck paving of old bridge 1 and new bridge 2 at longitudinal joint, 38 He of nose circle shape rectangular opening
Separation layer 34 can satisfy the differential settlement of new bridge 2 and old bridge 1.
Longitudinal joint spacing between the new bridge 2 and old bridge 1 is set as 20mm；The backing plate 36 with a thickness of 6~
10mm.36 planar dimension of backing plate is determined according to the principle of equal strength of pre-embedded steel slab 32 and junction steel plate 33.
Multiple groups connector is along the bridge equipped in Yan Jiuqiao 1 and new bridge 2, and every group of connector includes two taking root in into reinforcing bar
31, two groups of bolt connection assemblies, one piece of pre-embedded steel slab 32 and one piece of junction steel plate 33；
The described implantation reinforcing bar 31 is along the bridge placed with vertical bridge floor along old bridge 1, and the diameter of implantation reinforcing bar 31 is 20~
28mm, it is 150~250mm that implantation reinforcing bar 31, which is implanted into the depth in old bridge 1, and the spacing between two implantation reinforcing bars 31 is 100mm；It is described
Pre-embedded steel slab 32 with a thickness of 6~10mm, width be 170~250mm, the pre-buried length into new bridge 2 be 150~250mm；Institute
The side for the pre-embedded steel slab 32 stated is vertical with new bridge Bridge 2 face, along the bridge placement of the pre-embedded steel slab 32 along new bridge 2；The company
Connecing steel plate 33 is the groove profile steel plate being processed into using straight steel plate, junction steel plate 33 with a thickness of 6~10mm, the width of junction steel plate 33
Degree is 170~250mm；Two groups of bolt connection assemblies are 100mm along the spacing along the bridge of new bridge 2.
Every group of connector is 300~400mm along arrangement spacing along the bridge.
The horizontal spacing of the implantation reinforcing bar 31 and old 1 beam body edge of bridge is 250~400mm；The pre-embedded steel slab
32 with the horizontal spacing at 2 beam body edge of new bridge be 250~400mm.
The anchor hole of the junction steel plate 33 is circle, and anchor hole is at least 30mm with a distance from junction steel plate edge.
Anchor hole conveniently interspersed can install screw rod 35.
The radius in the nose circle shape hole at 38 both ends of nose circle shape rectangular opening is identical as anchor bolt pore radius on junction steel plate 33,
And nose circle shape rectangular opening 38 is at least 30mm with a distance from 32 edge of pre-embedded steel slab.Nose circle shape rectangular opening 38 on pre-embedded steel slab 32
Length it is identical as the differential settlement of new bridge 2, old bridge 1.
The separation layer 34 is made into using pitch ointment, separation layer 34 with a thickness of 5~10mm.
One side of the angle steel 4 and deck paving either flush, another side are set to the side in Calculation of Thickness of Bridge Deck Pavement direction
At edge.
A kind of bridge meeting new and old bridge differential settlement spells the construction method of wide construction, comprising the following steps:
Step 1 determines the longitudinal joint distance being arranged between old bridge 1 and new bridge 2, and the pile foundation position of new bridge 2 is determined according to longitudinal joint distance
It sets；New bridge infrastructure, prefabricated new bridge are completed in construction, and are arranged in advance in the new bridge inside edge adjacent with old bridge 1
Steel plate 32 is buried, nose circle shape rectangular opening 38 is set on pre-embedded steel slab 32；
Step 2, cuts the anti-collision wall in old 1 outside of bridge, installs implantation reinforcing bar 31 in old bridge edge；
The beam body of new bridge 2 is completed in step 3, construction；
Step 4,33 one end of junction steel plate and implantation reinforcing bar 31 weld, and component and pre-embedded steel slab 32 is bolted in the other end
It is connected, pitch ointment separation layer 34 is equipped between junction steel plate 33 and pre-embedded steel slab 32；
Step 5 at old 1 Central Plains anti-collision wall of bridge of constructing and the pave-load layer of new bridge Bridge 2 face, and is arranged in deck paving longitudinal joint edge
Angle steel 4.
Embodiment 2:
Certain highway, status are two-way four-lane, width of subgrade 26m, the left and right width separation of bridge.Because being unable to satisfy friendship
Throughput requirements need to be extended as two-way six-lane, and the width of subgrade after enlarging is 33.5m.Add wide way is widened for two sides, and every side is each
Widen 3.75m.By taking certain across footpath is 30mT beam as an example, bridge is that width 3.75m is respectively spelled in two sides, and new bridge pier, platform are all made of only pillar.
Scantling:
It is implanted into reinforcing bar 31: diameter 22mm；
Pre-embedded steel slab 32: having a size of 350 × 180 × 10mm, the nose circle shape rectangular opening 38 of two 80 × 25mm, nose circle are set thereon
Shape rectangular opening 38 is apart from 32 edge 30mm of pre-embedded steel slab, two pitch of holes 100mm, along 32 center line symmetrical setting of pre-embedded steel slab；
Junction steel plate 33: the long 590mm in bottom surface, two limb height 120mm, width 180mm, thickness 10mm, and two are drilled on a limb wherein
A circle anchor hole, anchor hole aperture are 25mm, and anchor hole is away from 33 edge 3cm of junction steel plate, two pitch of holes 10cm, edge connection steel
33 center line symmetrical setting of plate；
Bolt connection assembly: 35 diameter of screw rod be 22mm, nut I 37, nut II 39 are mating with screw rod 35, backing plate 36 having a size of
40×40×10mm；
Separation layer 34: it uses and is made into a thickness of the pitch ointment of 10mm；
Angle steel 4:L70 × 45 × 6mm.
Specific construction procedure are as follows:
The longitudinal joint that distance is 20mm is arranged in step 1 between old bridge 1 and new bridge 2, the pile foundation position of new bridge 2 is determined according to longitudinal joint distance
It sets；Construction completion new bridge infrastructure, prefabricated new bridge, and from new bridge side in the new bridge adjacent with old bridge 1
Edge distance is that pre-embedded steel slab 32 is provided at 300mm, and every group of pre-embedded steel slab is 300mm, pre-embedded steel slab along spacing along the bridge
The nose circle shape rectangular opening 38 of 80 × 25mm is provided on 32, nose circle shape rectangular opening 38 is away from 32 edge 30mm of pre-embedded steel slab；
Step 2 cuts the anti-collision wall in 1 outside of old bridge, apart from old bridge edge 300mm at implantation be implanted into reinforcing bar 31, every group
Two in the connector spacing taken root between reinforcing bar are 100mm；
The beam body of new bridge 2 is completed in step 3, construction；
Step 4,33 one end of junction steel plate and implantation reinforcing bar 31 weld, and component and pre-embedded steel slab 32 is bolted in the other end
It is connected, pitch ointment separation layer 34 is equipped between junction steel plate 33 and pre-embedded steel slab 32；
Step 5 at old 1 Central Plains anti-collision wall of bridge of constructing and the pave-load layer of new bridge Bridge 2 face, and is arranged in deck paving longitudinal joint edge
Angle steel 4.
Claims (10)
1. a kind of bridge for meeting new and old bridge differential settlement spells wide construction, including old bridge (1), new bridge (2) and connector；Described is old
Longitudinal joint along the bridge is formed between bridge (1) and new bridge (2)；Pacify on the old bridge of longitudinal joint two sides and the bridge deck pavement of new bridge
Equipped with angle steel (4), angle steel (4) edge is along the bridge arranged；
It is characterized by: the old bridge (1) and new bridge (2) is fixedly connected with by connector；
The connector includes junction steel plate (33), the implantation reinforcing bar (31) in the old bridge (1) of implantation and is embedded in new bridge (2)
Pre-embedded steel slab (32)；
The implantation reinforcing bar (31) is connected with pre-embedded steel slab (32) by junction steel plate (33)；The junction steel plate (33)
One end is mutually welded with implantation reinforcing bar (31), and the other end is bolted component and is connected with pre-embedded steel slab (32)；The connection
Separation layer (34) are provided between steel plate (33) and pre-embedded steel slab (32)；Nose circle shape rectangle is provided on the pre-embedded steel slab (32)
Hole (38), nose circle shape rectangular opening (38) are vertically arranged on pre-embedded steel slab (32)；
The bolt connection assembly includes screw rod (35)；One end of the screw rod (35) is equipped with nut I (37), the other end
Sequentially pass through the nose circle shape rectangular opening (38) and junction steel plate (33) on pre-embedded steel slab (32), and the other end in screw rod (35)
It is equipped with nut II (39)；Backing plate (36) are equipped on one section of screw rod between pre-embedded steel slab (32) and nut I (37).
2. the bridge according to claim 1 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: the new bridge
(2) the longitudinal joint spacing between He Jiuqiao (1) is set as 20mm；The backing plate (36) with a thickness of 6~10mm.
3. a kind of bridge for meeting new and old bridge differential settlement according to claim 1 spells wide construction, it is characterised in that: along old
Bridge (1) and new bridge (2) are along the bridge equipped with multiple groups connector, and every group of connector includes two taking root in into reinforcing bar (31), two groups of spiral shells
Tether connected components, one piece of pre-embedded steel slab (32) and one piece of junction steel plate (33)；
Implantation reinforcing bar (31) Yan Jiuqiao's (1) along the bridge places with vertical bridge floor, and the diameter of implantation reinforcing bar (31) is
20~28mm, it is 150~250mm that implantation reinforcing bar (31), which is implanted into the depth in old bridge (1), and the spacing between two implantation reinforcing bar (31) is
100mm；The pre-embedded steel slab (32) is 170~250mm with a thickness of 6~10mm, width, the pre-buried length for entering new bridge (2)
For 150~250mm；The side of the pre-embedded steel slab (32) is vertical with new bridge (2) bridge floor, and pre-embedded steel slab (32) is along new bridge (2)
Along the bridge placement；The junction steel plate (33) is the groove profile steel plate being processed into using straight steel plate, junction steel plate (33)
With a thickness of 6~10mm, the width of junction steel plate (33) is 170~250mm；Suitable bridge of two groups of bolt connection assemblies along new bridge (2)
The spacing in direction is 100mm.
4. the bridge according to claim 3 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: every group of connector
It is 300~400mm along arrangement spacing along the bridge.
5. the bridge according to claim 1 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: the implantation
The horizontal spacing at reinforcing bar (31) and old bridge (1) beam body edge is 250~400mm；The pre-embedded steel slab (32) and new bridge (2) beam
The horizontal spacing at body edge is 250~400mm.
6. the bridge according to claim 1 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: the connection
The anchor hole of steel plate (33) is circle, and anchor hole is at least 30mm with a distance from junction steel plate edge.
7. the bridge according to claim 6 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: the nose circle
The radius in the nose circle shape hole at shape rectangular opening (38) both ends is identical as anchor bolt pore radius on junction steel plate (33), and nose circle shape rectangle
Hole (38) is at least 30mm with a distance from pre-embedded steel slab (32) edge.
8. the bridge according to claim 1 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: the isolation
Layer (34) is made into using pitch ointment, separation layer (34) with a thickness of 5~10mm.
9. the bridge according to claim 1 for meeting new and old bridge differential settlement spells wide construction, it is characterised in that: the angle steel
(4) one side and deck paving either flush, another side are set to the edge in Calculation of Thickness of Bridge Deck Pavement direction.
10. a kind of bridge for meeting new and old bridge differential settlement as described in claim 1-9 is any spells the construction method of wide construction,
It is characterized in that, comprising the following steps:
Step 1 determines the longitudinal joint distance being arranged between old bridge (1) and new bridge (2), and the stake of new bridge (2) is determined according to longitudinal joint distance
Base location；Construction completion new bridge infrastructure, prefabricated new bridge, and in the new bridge inside edge adjacent with old bridge (1)
It is arranged pre-embedded steel slab (32), nose circle shape rectangular opening (38) is set on pre-embedded steel slab (32)；
Step 2 cuts the anti-collision wall on the outside of old bridge (1), installs implantation reinforcing bar (31) in old bridge edge；
The beam body of new bridge (2) is completed in step 3, construction；
Component and pre-buried steel is bolted in step 4, junction steel plate (33) one end and implantation reinforcing bar (31) welding, the other end
Plate (32) is connected, and pitch ointment separation layer (34) is equipped between junction steel plate (33) and pre-embedded steel slab (32)；
Step 5, at old bridge (1) Central Plains anti-collision wall of constructing and new bridge (2) bridge deck pavement, and in deck paving longitudinal joint edge
It is arranged angle steel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106984.6A CN109024320B (en) | 2018-09-21 | 2018-09-21 | Bridge width splicing structure meeting settlement difference of new bridge and old bridge and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106984.6A CN109024320B (en) | 2018-09-21 | 2018-09-21 | Bridge width splicing structure meeting settlement difference of new bridge and old bridge and construction method |
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| CN109024320A true CN109024320A (en) | 2018-12-18 |
| CN109024320B CN109024320B (en) | 2023-11-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111648233A (en) * | 2020-05-26 | 2020-09-11 | 中冶南方城市建设工程技术有限公司 | Join together wide bridge joint and prevent subsiding board device |
| CN111827149A (en) * | 2020-09-01 | 2020-10-27 | 浙江世润建创科技发展有限公司 | Bridge widening hinge structure and construction method |
| CN112982192A (en) * | 2021-02-26 | 2021-06-18 | 中冶南方城市建设工程技术有限公司 | Flexible steel node is widened to old bridge convenient to installation is changed |
| CN113235396A (en) * | 2021-05-27 | 2021-08-10 | 华南理工大学 | Novel connecting structure for new and old bridge joints of bridge with flange plates and construction method |
| CN114164747A (en) * | 2021-12-21 | 2022-03-11 | 上海市政工程设计研究总院（集团）有限公司 | New and old structure collaborative stress structure for bridge widening |
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| CN111648233A (en) * | 2020-05-26 | 2020-09-11 | 中冶南方城市建设工程技术有限公司 | Join together wide bridge joint and prevent subsiding board device |
| CN111648233B (en) * | 2020-05-26 | 2022-06-10 | 中冶南方城市建设工程技术有限公司 | Join together wide bridge joint and prevent subsiding board device |
| CN111827149A (en) * | 2020-09-01 | 2020-10-27 | 浙江世润建创科技发展有限公司 | Bridge widening hinge structure and construction method |
| CN111827149B (en) * | 2020-09-01 | 2022-01-28 | 浙江世润建创科技发展有限公司 | Bridge widening hinge structure and construction method |
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| CN114164747A (en) * | 2021-12-21 | 2022-03-11 | 上海市政工程设计研究总院（集团）有限公司 | New and old structure collaborative stress structure for bridge widening |
| CN114164747B (en) * | 2021-12-21 | 2023-11-03 | 上海市政工程设计研究总院（集团）有限公司 | New and old structure cooperative stress structure for bridge widening |
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