CN109537470A - The Y structure construction bracket structure of battered leg stress can be adjusted in real time - Google Patents
The Y structure construction bracket structure of battered leg stress can be adjusted in real time Download PDFInfo
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- CN109537470A CN109537470A CN201910003718.9A CN201910003718A CN109537470A CN 109537470 A CN109537470 A CN 109537470A CN 201910003718 A CN201910003718 A CN 201910003718A CN 109537470 A CN109537470 A CN 109537470A
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- battered leg
- steel pipe
- pier
- stress
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the Y structure construction bracket structures that one kind can adjust battered leg stress in real time, which includes Y structure battered leg, support device and jacking apparatus；The support device includes Bailey beam and multiple first steel pipe piers, the bottom end of each first steel pipe pier is directly embedded to underground, and the top of each first steel pipe pier is fixedly connected with Bailey beam, longitudinal root of the Y structure battered leg is directly embedded to underground, an operation platform is set up in the support device that first steel pipe pier and Bailey beam are formed, which is located at the top of Y structure battered leg.The present invention is applied in combination with the first steel pipe pier Bailey beam strutting system, it realizes and combines traditional support system with the interim girt technique in the construction of Y structure, a blank of bridge structure technology is filled up, thus avoid that Y structure stress when bridge rack construction is unfavorable, and appearance the problems such as Y structure great cantilever stage battered leg Root Stress larger easy cracking.
Description
Technical field
The present invention relates to construction technical fields, more particularly to a kind of Y structure construction branch that can adjust battered leg stress in real time
Frame structure.
Background technique
With the rapid development that highway in China is built, the requirement to bridge structure overall performance is higher and higher, wants Ru linear
It asks, the requirement of good appearance, the smooth comfortably requirement etc. of driving.And in municipal bridge and multiple line overpass, Y-shaped pier is continuous
Rigid frame bridge is that a kind of more commonly used structure type is not only made compared with using the common continuous rigid frame bridge of twin legged thin wall pier stud
Type is beautiful, and Y pier takes full advantage of two sides space, so as to reduce girder across footpath, is conducive to structure vertical applied force.However Y
For pier compared with conventional upright formula pier stud, its requirement to construction technology is higher, therefore, the construction the relevant technologies of Y shape pier often at
For the key in such bridge construction process.
For Y type (or V-type) pier rigid frame bridge, commonly using stand construction method is balanced trestle and full framing
Method.Wherein balanced trestle cooperation stiff skeleton is widely used in a variety of applications in the construction of Y shape pier, but according to its stress spy
Point, this method is suitable for the middle-size and small-size Y shape pier rigid frame bridge that height is little and inclination angle is little, however large angle Y pier will lead to
It is constructed difficult, and in the work progress of balanced trestle, concreting must be carried out symmetrically, to guarantee to apply
Working hour balance bracket and the stabilization of support, two sides pour error and must control in certain range, and difficulty of construction is larger.Therefore right
In large angle Y structure, generallys use Support Method and carry out cast-in-place construction, by scheme comparison, the structure type of steel pipe pier Bailey beam is more
For economic and reliable.
The main pier form of large angle Y structure is at present also using few.The village the Guangzhou Underground 14# Xian Deng continuous rigid frame built up in the recent period
Bridge uses such Y pier pattern, and large angle Y pier embodies the new approaches of continuous rigid frame bridge construction with succinct bold feature.
But since when constructing 0# block on Y pier, construction bracket is supported directly on Y structure, is produced when pouring 0# block concrete to Y structure
Great support reaction keeps Y structure battered leg totally unfavorable in the stress of this construction stage.Along with lacking systematic research and application, Y
The adaptability of structure bracket, technical, safety and economy problems, are not answered explicitly, technical application is in yet at present
Isolated state, technology development are even more not to be reported.
Summary of the invention
Shortcoming present in view of the above technology, the present invention provide a kind of Y structure that can adjust battered leg stress in real time and apply
Work supporting structure, the structure combine traditional support system with the interim girt technique in the construction of Y structure, have filled up bridge
One blank of girder construction technology.
To achieve the above object, the present invention provides a kind of Y structure construction bracket structure that can adjust battered leg stress in real time, including
Y structure battered leg, support device and jacking apparatus；The support device includes Bailey beam and multiple first steel pipe piers, each first steel
The bottom end of pipe pier is directly embedded to underground, and the top of each first steel pipe pier is fixedly connected with Bailey beam, the Y structure battered leg
Longitudinal root be directly embedded to underground, it is flat that a construction is set up in the support device that first steel pipe pier and Bailey beam are formed
Platform, the operation platform are located at the top of Y structure battered leg；
The jacking apparatus includes two steering blocks, two groups of prestressed strands and two beveled ends for being fixed on Y structure battered leg
Anchoring beam on subordinate end；A pair of of jack, and two jack are disposed in the girder two sides symmetric position of operation platform
It is directly installed on a pair of the second steel pipe pier for being located at Y structure battered leg facade center, and fixes the steering block on each jack；
One end of every group of prestressed strand is anchored at one of anchoring beam of the same side, and the middle part of the prestressed strand is fixed
After on steering block and the other end is anchored on another anchoring beam of the same side, the prestressed strand and two anchoring beams it
Between form adjustment to Y structure battered leg stretching force Y structure battered leg played in various degree by adjusting the stretching force of prestressed strand
Jacking effect, so as to improve the stress of longitudinal root of Y structure battered leg.
Wherein, the top of each first steel pipe pier passes through flanged joint sand cylinder, and being located at operation platform two sides is in symmetrical position
H profile steel crossbeam is mounted on the two sand cylinders set, the Bailey beam is laid in the plane that multiple H profile steel crossbeams are formed, institute
The upper load for stating operation platform is transferred to ground by the first steel pipe pier and the second steel pipe pier, avoids generating Y structure battered leg and answer
Power.
Wherein, two anchoring beams of the same side are symmetric along steering block.
Wherein, every group of prestressed strand includes at least one prestress wire.
Wherein, a holding tank compatible with prestressed strand is embedded on each steering block, the middle part is fixed on
In the holding tank.
Wherein, each second steel pipe pier includes steel pipe main body and pier portion supporter, and the steel pipe main body and pier portion support
Both bodies are integrally formed, and the junction periphery of the two is provided with support ring, and the top of pier portion supporter is provided with
Support ring on one.
Wherein, on pier portion supporter outer between upper support ring and lower support ring place be evenly arranged with it is multiple
Reinforcing rib.
Wherein, the rectangular terraced character form structure of each reinforcing rib, and the right angle portion of the right angle ladder character form structure is supported upper
Support ring, the part opposite with right angle portion is supported in lower support ring, the longest of right angle ladder character form structure on right angle ladder character form structure
While being fixed on outer the placing of pier portion supporter.
Wherein, the Bailey beam is spliced by multiple Bailey beam modules, and is led between each adjacent two Bailey beam module
It crosses bolt to be fixedly connected, first steel pipe pier is spliced by multiple first steel pipe pier modules, two neighboring first steel pipe pier
Module is bolted to connection；The Bailey beam module and the first steel pipe pier module are according to Y structure battered leg is successively assembled and peace
Dress, first construction is basic, installs Y structure battered leg and carries out precompressed operation, then stretch-draw prestressing force steel beam to adjust longitudinal root of Y structure battered leg
The stress in portion is convenient for subsequent concrete construction.
Compared with prior art, the Y structure construction bracket structure provided by the invention that can adjust battered leg stress in real time has such as
It is lower the utility model has the advantages that
1) structure mainly includes Y structure battered leg, support device and jacking apparatus, the design of the structure, steel pipe pier and Bei Lei
Boom support system combinations use, and realize and combine traditional support system with the interim girt technique in the construction of Y structure,
A blank for having filled up bridge structure technology, it is unfavorable to thus avoid Y structure stress when bridge rack construction, and Y structure great cantilever
The appearance of the problems such as stage battered leg Root Stress larger easy cracking；
2) bracket of the design is directly embedded to underground by steel pipe pier Bailey beam, and avoiding being supported on leads to Y structure stress on Y structure
Situation is bad；
3) adjustment to Y structure battered leg stretching force is formed between prestressed strand and two anchoring beams, passes through prestress steel twist
The tensioning of line, anchoring beam can play the role of the jacking similar with traditional interim girt to Y structure battered leg, so as to improve Y
The stress of structure battered leg root, avoids its cracking；
4) the Y structure construction bracket that can adjust battered leg stress in real time combines support system with girt, function upgrading,
Technology, economic indicator optimization；Can adjust in real time battered leg stress Y structure construction bracket be strutting system size and be arranged in it is vertical,
It is laterally controlled, structural advantage is played, and disadvantage is limited, and is substantially reduced with material.
Detailed description of the invention
Fig. 1 is Y structure of the present invention and its construction bracket rough package drawing；
Fig. 2 is the Y structure construction bracket general structure schematic diagram of the adjustable battered leg stress of one of Fig. 1；
Fig. 3 is the Y structure construction bracket axonometric drawing of Fig. 2；
Fig. 4 is the Y structure construction bracket cross section perspective view of Fig. 2；
Fig. 5 is the Y structure construction bracket thin portion structural schematic diagram of Fig. 2.
Specific embodiment
In order to more clearly state the present invention, the present invention is further described with reference to the accompanying drawing.
Referring to Fig. 1, the Y structure construction bracket structure provided by the invention that battered leg stress can be adjusted in real time, including Y structure battered leg
1, support device 2 and jacking apparatus 3；The support device 2 includes Bailey beam 21 and multiple first steel pipe piers 22, each first steel
The bottom end of pipe pier is directly embedded to underground, and the top of each first steel pipe pier is fixedly connected with Bailey beam, the Y structure battered leg
1 longitudinal root is directly embedded to underground, sets up a construction in the support device that first steel pipe pier and Bailey beam are formed
Platform 4, the operation platform are located at the top of Y structure battered leg；Y structure battered leg 1, support device and jacking apparatus three form the construction of Y structure
Bracket；
The jacking apparatus 3 includes two steering blocks, 31, two groups of prestressed strands 32 and is fixed on two of Y structure battered leg and inclines
Anchoring beam 33 on angled end lower end；Be disposed with a pair of of jack 34 in the girder two sides symmetric position of operation platform, and this two
A jack is directly installed on a pair of the second steel pipe pier 23 for being located at Y structure battered leg facade center, and solid on each jack
The fixed steering block；One end of every group of prestressed strand 32 is anchored at one of anchoring beam of the same side, and the prestressing force
After being fixed on steering block in the middle part of steel beam and the other end is anchored on another anchoring beam of the same side, the prestressed strand
The adjustment formed between beam to Y structure battered leg stretching force is anchored with two, it is oblique to Y structure by adjusting the stretching force of prestressed strand
Leg plays different degrees of jacking effect, so as to improve the stress of longitudinal root of Y structure battered leg.First steel pipe pier in the present invention,
Longitudinal root of second steel pipe pier and Y structure battered leg 1 is directly embedded to the depth under ground, can be depending on geological condition.
In the present embodiment, the top of each first steel pipe pier passes through the connection sand cylinder 25 of flange 24, is located at operation platform 4
In H profile steel crossbeam 26 is mounted on two sand cylinders of symmetric position, the Bailey beam is laid on multiple H profile steel crossbeam shapes for two sides
At plane on, the upper load of the operation platform is transferred to ground by the first steel pipe pier and the second steel pipe pier, avoids to Y
Structure battered leg generates stress.
In the present embodiment, two anchoring beams of the same side are symmetric along steering block.Every group of prestressed strand include
At least one prestress wire.Prestress wire can be directly anchored on anchoring beam by steering block in the structure, nothing
Girt need to be set again.
In the present embodiment, be embedded with a holding tank compatible with prestressed strand on each steering block, it is described in
Portion is fixed in the holding tank.An embedded structure is formed in the structure to fix prestressed strand, so that prestressed strand
Structure between steering block is sufficiently stable, because under the pulling of hightension, but also the position of the two is not in offset,
Thus problem of Cracking is further avoided.
In the present embodiment, each second steel pipe pier 23 includes steel pipe main body 231 and pier portion supporter 232, the steel
Both pipe main body and pier portion supporter are integrally formed, and the junction periphery of the two is provided with support ring 233, the pier portion
The top of supporter is provided with support ring 234 on one.On pier portion supporter between upper support ring and lower support ring
It places outside and is evenly arranged with multiple reinforcing ribs 235.In the structure the first and second steel pipe piers structure design so that steel pipe pier with
Both Bailey beams are used as support system, and stablizing effect is more preferable；The design of reinforcing rib increases the stressed effect of steel pipe pier, and
Further avoid being supported on the phenomenon for causing Y structure stress condition bad on Y structure.The design of reinforcing rib increases the branch of steel pipe pier
Support force degree further enhances the stress of Y structure battered leg root.
In the present embodiment, each reinforcing rib at right angles terraced character form structure, and the right angle portion of the right angle ladder character form structure
Opposite with right angle portion part in upper support ring, right angle ladder character form structure is supported to support in lower support ring, right angle ladder font knot
The longest edge of structure is fixed on outer the placing of pier portion supporter.Reinforcing rib design be right angle ladder character form structure so that steel pipe pier by
Power area is bigger, and stability is more preferable.
In the present embodiment, the Bailey beam is spliced by multiple Bailey beam modules, and each adjacent two Bailey beam mould
It being bolted to connection between block, first steel pipe pier is spliced by multiple first steel pipe pier modules, and two neighboring
One steel pipe pier module is bolted to connection；The Bailey beam module and the first steel pipe pier module according to Y structure battered leg successively
Assembled and installation, first construction is basic, installs Y structure battered leg and carries out precompressed operation, then stretch-draw prestressing force steel beam to adjust Y structure battered leg
Longitudinal root stress, be convenient for subsequent concrete construction.Certainly, in this case between two Bailey beam modules and
It is not limited to the mode being connected between two the first steel pipe pier modules, can also be consolidated by way of directly pouring etc.
It is fixed；Bailey beam and steel pipe pier use modular design-and-build mode, the structures such as the first steel pipe pier, Bailey beam, external prestressing
Part is separate unit, and composite assembly plays the role of jacking Y structure battered leg at strutting system；Modular design, forms
A set of industrialization bridge construction technology.Separate unit is matched in factory and is manufactured, at the scene successively assembled and installation, base of first constructing
Plinth, mounting bracket and the operation such as carry out precompressed, then stretch-draw prestressing force steel beam, are convenient for subsequent concrete construction.Y structure
The individual member of construction bracket is matched in factory and is manufactured, and is transported to scene, is mounted to steel pipe pier Bailey beam support system, sets up thereon
Operation platform, and install jack and steering block, then prestressed steel beam and be anchored on anchoring beam, it is fixed on anchoring
Beam post-stress plays jacking effect.
Compared to the prior art the case where, the Y structure construction bracket structure provided by the invention that battered leg stress can be adjusted in real time,
It has the advantage that
1) structure mainly includes Y structure battered leg, support device and jacking apparatus, the design of the structure, with steel pipe pier shellfish thunder
Boom support system combinations use, and realize and combine traditional support system with the interim girt technique in the construction of Y structure,
A blank for having filled up bridge structure technology, it is unfavorable to thus avoid Y structure stress when bridge rack construction, and Y structure great cantilever
The appearance of the problems such as stage battered leg Root Stress larger easy cracking；
2) bracket of the design is directly embedded to underground by steel pipe pier Bailey beam, and avoiding being supported on leads to Y structure stress on Y structure
Situation is bad；
3) adjustment to Y structure battered leg stretching force is formed between prestressed strand and two anchoring beams, passes through prestress steel twist
The tensioning of line, anchoring beam can play the role of the jacking similar with traditional interim girt to Y structure battered leg, so as to improve Y
The stress of structure battered leg root, avoids its cracking；
4) the Y structure construction bracket that can adjust battered leg stress in real time combines support system with girt, function upgrading,
Technology, economic indicator optimization；Can adjust in real time battered leg stress Y structure construction bracket be strutting system size and be arranged in it is vertical,
It is laterally controlled, structural advantage is played, and disadvantage is limited, and is substantially reduced with material；
5) modularized design mode and construction theory realize the integrally-built substep of support and are formed, and hoist decomposes, construction
It is convenient；
6) by this structure, in such large angle bridge construction process, improvement bridge force-bearing situation avoids excessive
Stress is concentrated, and is absolutely not applied to the technology in this class formation bridge construction at present, which is a completely new invention,
And all play the role of in the bridges such as subway, high speed great, most importantly solve current large angle bridge construction
Problem.
Disclosed above is only several specific embodiments of the invention, but the present invention is not limited to this, any ability
What the technical staff in domain can think variation should all fall into protection scope of the present invention.
Claims (10)
1. the Y structure construction bracket structure that one kind can adjust battered leg stress in real time, which is characterized in that including Y structure battered leg, support device
And jacking apparatus；The support device includes Bailey beam and multiple first steel pipe piers, and the bottom end of each first steel pipe pier is directly buried
Enter underground, and the top of each first steel pipe pier is fixedly connected with Bailey beam, longitudinal root of the Y structure battered leg is directly buried
Enter underground, sets up an operation platform in the support device that first steel pipe pier and Bailey beam are formed, the operation platform position
In the top of Y structure battered leg；
The jacking apparatus includes two steering blocks, two groups of prestressed strands and is fixed under two inclined end portions of Y structure battered leg
Anchoring beam on end；It is disposed with a pair of of jack in the girder two sides symmetric position of operation platform, and two jack are direct
It is mounted on a pair of the second steel pipe pier for being located at Y structure battered leg facade center, and fixes the steering block on each jack；Every group
One end of prestressed strand be anchored at one of anchoring beam of the same side, and be fixed on and turn in the middle part of the prestressed strand
After on block and the other end is anchored on another anchoring beam of the same side, shape between the prestressed strand and two anchoring beams
The adjustment of pairs of Y structure battered leg stretching force plays different degrees of top to Y structure battered leg by adjusting the stretching force of prestressed strand
Ascending effect, so as to improve the stress of longitudinal root of Y structure battered leg.
2. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that each
The top of first steel pipe pier passes through flanged joint sand cylinder, pacifies on two sand cylinders of the operation platform two sides in symmetric position
Equipped with H profile steel crossbeam, the Bailey beam is laid in the plane that multiple H profile steel crossbeams are formed, the top lotus of the operation platform
It carries and ground is transferred to by the first steel pipe pier and the second steel pipe pier, avoid generating stress to Y structure battered leg.
3. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that same
Two anchoring beams of side are symmetric along steering block.
4. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that every group
Prestressed strand includes at least one prestress wire.
5. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that the Y
Angle between two beveled ends of structure battered leg is the large angle greater than 90 degree.
6. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that each
A holding tank compatible with prestressed strand is embedded on steering block, the middle part is fixed in the holding tank.
7. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that each
Second steel pipe pier includes steel pipe main body and pier portion supporter, and both the steel pipe main body and pier portion supporter are integrally formed, and
The junction periphery of the two is provided with support ring, and the top of pier portion supporter is provided with support ring on one.
8. the Y structure construction bracket structure according to claim 7 that battered leg stress can be adjusted in real time, which is characterized in that described
Outer place on pier portion supporter between upper support ring and lower support ring is evenly arranged with multiple reinforcing ribs.
9. the Y structure construction bracket structure according to claim 8 that battered leg stress can be adjusted in real time, which is characterized in that each
The rectangular terraced character form structure of reinforcing rib, and the right angle portion of the right angle ladder character form structure is supported in upper support ring, right angle ladder font
The part opposite with right angle portion is supported in lower support ring in structure, and the longest edge of right angle ladder character form structure is fixed on pier portion supporter
Outer place.
10. the Y structure construction bracket structure according to claim 1 that battered leg stress can be adjusted in real time, which is characterized in that described
Bailey beam is spliced by multiple Bailey beam modules, and is bolted to connection between each adjacent two Bailey beam module, institute
It states the first steel pipe pier to be spliced by multiple first steel pipe pier modules, two neighboring first steel pipe pier module is bolted
Connection；According to successively assembly and the installation of Y structure battered leg, first construction is basic, installs Y for the Bailey beam module and the first steel pipe pier module
Structure battered leg simultaneously carries out precompressed operation, then stretch-draw prestressing force steel beam adjusts the stress of longitudinal root of Y structure battered leg, after being convenient for
Continuous concrete construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003718.9A CN109537470A (en) | 2019-01-03 | 2019-01-03 | The Y structure construction bracket structure of battered leg stress can be adjusted in real time |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003718.9A CN109537470A (en) | 2019-01-03 | 2019-01-03 | The Y structure construction bracket structure of battered leg stress can be adjusted in real time |
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| CN109537470A true CN109537470A (en) | 2019-03-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910003718.9A Pending CN109537470A (en) | 2019-01-03 | 2019-01-03 | The Y structure construction bracket structure of battered leg stress can be adjusted in real time |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972531A (en) * | 2019-05-13 | 2019-07-05 | 中铁二十四局集团安徽工程有限公司 | It is a kind of for improving the external prestressing device of Bailey beam falsework span |
| CN111910520A (en) * | 2020-07-13 | 2020-11-10 | 中铁八局集团第二工程有限公司 | Construction method of high-speed inclined leg crossing rigid frame overpass |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896609A (en) * | 1997-11-21 | 1999-04-27 | Lin; Wei-Hwang | Safety method of construction a prestressed cable-stay bridge |
| CN101481902A (en) * | 2009-01-21 | 2009-07-15 | 中铁三局集团有限公司 | V type pier inclined leg combined type support for continuous rigid frame bridge and layered cast-in-situ construction method |
| JP2011032651A (en) * | 2009-07-30 | 2011-02-17 | Yokohama National Univ | Bridge reinforcing structure and bridge reinforcing method |
| CN103266574A (en) * | 2013-05-02 | 2013-08-28 | 浙江大学 | Simply-supported box girder bridge strengthening method with oblique cables |
| CN104746435A (en) * | 2015-04-03 | 2015-07-01 | 中国建筑第六工程局有限公司 | Wide-angle Y-shaped pier column construction method |
| CN105297642A (en) * | 2015-11-06 | 2016-02-03 | 沈阳建筑大学 | Cover beam external prestressing reinforcing structure and construction method thereof |
| CN106677070A (en) * | 2016-12-31 | 2017-05-17 | 中铁局集团有限公司 | Construction support and method for overhead large-span heavy-duty cross beam |
| CN106758827A (en) * | 2016-11-29 | 2017-05-31 | 武汉理工大学 | Chevron shaped prestressed concrete pre-tensioned method Bridge Erector and application method |
| CN209428971U (en) * | 2019-01-03 | 2019-09-24 | 中铁北京工程局集团第二工程有限公司 | The Y structure construction bracket structure of battered leg stress can be adjusted in real time |
-
2019
- 2019-01-03 CN CN201910003718.9A patent/CN109537470A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896609A (en) * | 1997-11-21 | 1999-04-27 | Lin; Wei-Hwang | Safety method of construction a prestressed cable-stay bridge |
| CN101481902A (en) * | 2009-01-21 | 2009-07-15 | 中铁三局集团有限公司 | V type pier inclined leg combined type support for continuous rigid frame bridge and layered cast-in-situ construction method |
| JP2011032651A (en) * | 2009-07-30 | 2011-02-17 | Yokohama National Univ | Bridge reinforcing structure and bridge reinforcing method |
| CN103266574A (en) * | 2013-05-02 | 2013-08-28 | 浙江大学 | Simply-supported box girder bridge strengthening method with oblique cables |
| CN104746435A (en) * | 2015-04-03 | 2015-07-01 | 中国建筑第六工程局有限公司 | Wide-angle Y-shaped pier column construction method |
| CN105297642A (en) * | 2015-11-06 | 2016-02-03 | 沈阳建筑大学 | Cover beam external prestressing reinforcing structure and construction method thereof |
| CN106758827A (en) * | 2016-11-29 | 2017-05-31 | 武汉理工大学 | Chevron shaped prestressed concrete pre-tensioned method Bridge Erector and application method |
| CN106677070A (en) * | 2016-12-31 | 2017-05-17 | 中铁局集团有限公司 | Construction support and method for overhead large-span heavy-duty cross beam |
| CN209428971U (en) * | 2019-01-03 | 2019-09-24 | 中铁北京工程局集团第二工程有限公司 | The Y structure construction bracket structure of battered leg stress can be adjusted in real time |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109972531A (en) * | 2019-05-13 | 2019-07-05 | 中铁二十四局集团安徽工程有限公司 | It is a kind of for improving the external prestressing device of Bailey beam falsework span |
| CN109972531B (en) * | 2019-05-13 | 2024-04-23 | 中铁二十四局集团安徽工程有限公司 | External prestressing device for improving temporary support span of bailey beam |
| CN111910520A (en) * | 2020-07-13 | 2020-11-10 | 中铁八局集团第二工程有限公司 | Construction method of high-speed inclined leg crossing rigid frame overpass |
| CN111910520B (en) * | 2020-07-13 | 2021-12-07 | 中铁八局集团第二工程有限公司 | Construction method of high-speed inclined leg crossing rigid frame overpass |
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