CN109024316A - A kind of bridge beam body lifting system being mounted on bridge pier - Google Patents
A kind of bridge beam body lifting system being mounted on bridge pier Download PDFInfo
- Publication number
- CN109024316A CN109024316A CN201811027380.2A CN201811027380A CN109024316A CN 109024316 A CN109024316 A CN 109024316A CN 201811027380 A CN201811027380 A CN 201811027380A CN 109024316 A CN109024316 A CN 109024316A
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- CN
- China
- Prior art keywords
- bridge pier
- bridge
- beam body
- stiffener
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The invention discloses a kind of bridge beam body lifting systems being mounted on bridge pier, including the fixed device of bridge pier and lifting component, the fixed device upper surface of bridge pier is formed with horizontal support platform, lifting component includes the upward jack in support platform along bridge pier circumferentially, it is characterized in that, lifting component further includes the whole equal power ring in horizontal annular, equal power ring set is located at outside the support of bridge pier upper end, the jacking force surface that equal power ring upper surface is and bridge connects, the jacking stress surface that equal power ring lower surface is and jack upper end connects.The present invention is exclusively used in the beam body entirety lifting system of bridge of the substructure without bent cap, and structure is simple, and fixed effect and stability are good, easy for construction, and synchronization of jacking up can be better achieved, protect the safety of construction.
Description
Technical field
The present invention relates to bridges in highway engineering fields more particularly to a kind of bridge beam body lifting being installed in pier top to set
It is standby.
Background technique
Currently, China's overwhelming majority servicing bridges (especially continuous curved box girder bridges) will appear after using the several years
Different degrees of expansion joint breakoff phenomenon, such as: failure by shear, two sides bulging etc.；In addition a large amount of bridges are acted in various power
(such as: earthquake, car and boat collision) under certain vertically and horizontally displacement can occur, in addition some Static behaviors (such as: expansion joint card
Extremely, temperature action, bias of quiet dynamic load etc.) under can also generate the displacement of any direction, and gradually add up at any time.These occur
The bridge of beam body deviation has seriously threatened the safety of road operation, in addition, be highly desirable to carry out whole lift to it again
It rises, carry out bearing replacement or laterally resets, to tackle the problem at its root.
The research of equipment is integrally lifted for bridge, the method PLC synchronization of jacking up method that the country usually uses at present, but it is big
Amount engineering practice shows that this method still has some problems, e.g., during jacking, if instrument board reading is inaccurate, or
Some jack oil leak, damage etc., in this way caused by the result is that not construct according to synchronization of jacking up, often make in this way
At biggish stress, or even bridge is caused to ruin the accident that people dies.Therefore synchronization of jacking up, and energy can be better achieved by how designing one kind
It is enough to be minimized the local stress jacked at position, guarantee the safety in work progress, becoming has considered solve the problems, such as.
CN201520232817 is disclosed a kind of bracket for jacking road and bridge.It is a kind of use based on bridge pier installation
In the device for realizing bridge jacking, specially using the fixinig plate of two arcs along bridge pier circumferential direction, deformed by force using bolt
Device is fixed on bridge pier after compression, then the jacking support that support platform realizes jack is set again.
The scheme of above-mentioned patent can be realized the installation of the jack based on bridge pier structure form.But still it is lacked there are following
It falls into: 1, during jacking, there are excessive stress concentration at jack active position, causing to exist beam body part itself
Bad possibility is pushed up, jacking support effect is poor, and jacking synchronism is poor.It 2, is by two arcs in structure for fixing
Fixinig plate directly against in bridge pier peripheral surface, then detain the pressure that deformation generates by force by spiral and realizes holding, this
Sample frictional force is easy to offset deformation force, thereby reduces compression effect, device self stability is poor.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problems to be solved by the present invention are: how to provide a kind of structure letter
Single, it is excessive to can be avoided jacking position local stress, improves jacking synchronism, improves the peace of fixed reliability and device stability
Bridge beam body lifting system on bridge pier.
In order to solve the above-mentioned technical problem, present invention employs the following technical solutions:
A kind of bridge beam body lifting system being mounted on bridge pier, including the fixed device of bridge pier and lifting component, the fixed dress of bridge pier
The fixinig plate being oppositely arranged including two is set, fixinig plate is vertically arranged and horizontal direction is arc-shaped, and fixinig plate is along bridge pier circumferential direction table
It is adjacent to fixation in face of closing, there are the gap for deformation between two fixinig plates, the fixed device of bridge pier further includes corresponding two fixations
Piece interstitial site is horizontally disposed for generating the fastening bolt of fixinig plate fastening deformation, and the fixed device upper surface of bridge pier is formed with
Horizontal support platform, lifting component include the upward jack in support platform along bridge pier circumferentially, and feature exists
In lifting component further includes the whole equal power ring in horizontal annular, and equal power ring set is located at outside the support of bridge pier upper end, on equal power ring
The jacking force surface that surface is and bridge connects, the jacking stress surface that equal power ring lower surface is and jack upper end connects.
In this way, bridge jacking stress surface is expanded after being provided with equal power ring, it can be preferably equal by the top lift of jack
It is even to be reliably passed up to bridge lower surface, the synchronism of jacking is improved, while can be by the biggish jacking load in part
It is dispersed on entire acting surface, effectively reduces local stress, the generation for preventing beam body bottom surface local compression from destroying improves jacking
Effect and stability.
Further, the equal power ring is obtained by the stiffener of two semi-circular shape, and stiffener end has for docking
Vertical seamed edge, stiffener connection bolt is provided on vertical seamed edge by two stiffeners and is connected as equal power ring.
In this way, power ring is not necessarily to just be packed into bridge pier in bridge construction construction, it is more convenient when needing to install the present apparatus
It is reloaded into equal power ring.
Further, stiffener is made using boiling steel.This low in cost and intensity is preferable, can better ensure that jacking
Synchronism.
Further, stiffener and its vertical seamed edge are one piece of integral plate.It is not welded in this way, to reduce welding
Residual stress and residual deformation guarantee the flatness of stiffener.
Further, stiffener lower surface is provided with several ribbed stiffeners diametrically arranged, ribbed stiffener is circumferentially equal
There is one fixed width single ribbed stiffener upper end and stiffener contact area to be made to be greater than jack upper end end face for even arrangement, ribbed stiffener
Area.
In this way, stiffener stiffness by itself, Reducing distortion can be improved in ribbed stiffener, while jack is also used as to putting more energy into
Force transition between plate, enables the top lift of jack to be distributed more uniformly across on stiffener, preferably improves top
Rise force application stabilization.
Further, jack top surface and the position of ribbed stiffener contact are correspondingly arranged on billet, and billet upper surface is extremely
Few and two ribbed stiffener contacts.
It contact each jack upper end end face can at least with two ribbed stiffeners, be more uniformly stressed it,
Better ensure that the overall stability of lifting force.
Further, ribbed stiffener is soldered to stiffener bottom surface by steel bar and obtains.
It can guarantee the intensity between ribbed stiffener and steel plate in this way.
Further, in the fixed device of the bridge pier, the fixinig plate peripheral surface circumferentially have it is several diametrically
The force rib that direction extends horizontally outward, the corresponding force rib outer end of two fixinig plates are respectively correspondingly connected in the tight of arc
Admittedly covering medial surface, two adapter sleeve both ends ends have being fastenedly connected for docking diametrically extended outward to form
Plate, there are the interval for deformation between opposite fastening connecting plate, the fastening bolt is fixedly connected on opposite tight of every two
It is connected between fishplate bar.
In this way, the fixed device of this bridge pier is in use, be first to drive adapter sleeve to generate inside compression by fastening bolt to become
Shape converts the inward pressure that diametrically face fixinig plate applies for the power that the compression deforms then by force rib,
So that fixinig plate, which is inwardly adjacent to, is fixed on bridge pier peripheral surface.This structure and in the prior art fastening bolt are connected directly between solid
The mode of stator end is compared, and existing structure is by fastening bolt direct pull fixinig plate fastening deformation and to be fitted in bridge pier
Peripheral surface, the deformation of such fixinig plate itself will receive the obstruction of frictional force, reduce deformation and compress effect, simultaneously because becoming
The inconsistent meeting of shape effect is so that the inside pressing force size and Orientation of fixinig plate is unevenly distributed, closer to fastening bolt position
Deformation effect is more abundant thus pressing force is bigger, and the fixinig plate pressing force far from fastening bolt position is smaller.And this bridge pier is solid
Determine in device, be additionally arranged a hanging adapter sleeve, is converted again by force rib after pulling adapter sleeve deformation by fastening bolt
Apply inside pressing force for diametrical direction face fixinig plate.In this way fixinig plate by after force rib stress again pressuring action to bridge
Pier peripheral surface, so that stress diametrically inwardly applies, Impact direction is more balanced consistent.Simultaneously as tight
Gu set is arranged every sky, deformation is not by friction power limit, therefore fastening bolt enables to adapter sleeve preferably to generate inside change
Shape can generate bigger and more evenly inside so that fastening bolt is in the case where identical fastening amount to fixinig plate
Pressing force.Fastening effect is greatly improved, device stability is improved.In addition, the structure is also more conducive to fixed dress
The formation of upper support platform is set, conducive to the installation support for realizing jack.
Further, fastening bolt is high-strength bolt.Bolt clipping forcee can be preferably improved in this way.
Further, the fixinig plate, force rib, adapter sleeve and fastening connecting plate are that Steel material is made.It in this way can be with
Better ensure that intensity.
Further, adapter sleeve thickness is greater than fixinig plate thickness.Fixinig plate thickness in this way is smaller to rub conducive to preferably raising
Power is wiped, adapter sleeve thickness is larger to be conducive to preferably provide pressing force by deformation.Preferably the present apparatus is clenched
Bridge pier pier top provides good frictional force counter-force for workbench, to prevent the downslide in jack-up construction, while can also be preferably
So that pier top concrete is held three-dimensional restrained condition, prevents pier top concrete from damaging.
Further, fastening connecting plate and adapter sleeve obtain for monoblock cast.Globality can preferably be improved.
Further, exert a force is to be welded and fixed between rib and fixinig plate outer surface and adapter sleeve inner surface.So more
Facilitate construction to manufacture, reduces manufacturing cost.
Further, force rib is vertical plate structure, and exert a force rib upper end and fastening set upper side are in same level.
The composition and load of the support platform of the fixed device upper end of bridge pier more convenient in this way.
Further, force rib and adapter sleeve upper end face also support the support ring for being provided with that an entirety is in horizontal annular
Plate, support ring flat-plate upper surface constitute support platform and for installing jack.
It in this way, constituting support platform by support ring flat-plate, can preferably facilitate installation and the load of jack, improve dress
Set overall stability.
Further, support ring flat-plate is made using Steel material.Strength and stability can be better ensured that in this way.
Further, support ring flat-plate is obtained by being connected after two half ring flat-plate of arc docking using connection bolt.So more
Add and facilitates installation.
In conclusion the present invention is exclusively used in the beam body entirety lifting system of bridge of the substructure without bent cap, structure is simple,
Fixed effect and stability are good, easy for construction, can be better achieved synchronization of jacking up, and can will be at jack active position
Local stress is minimized, and guarantees the whole lifting equipment of the safety in work progress.Jack-up construction can be effectively improved
Effect protects the safety of construction.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the embodiment of the present invention.
Fig. 2 is the top view of independent bridge pier fixed part in Fig. 1, does not show support ring flat-plate in figure.
Fig. 3 is the overlooking structure diagram of independent stiffener in Fig. 1.
Specific embodiment
Below with reference to embodiment and attached drawing, the present invention is described in further detail.
Optimum embodiment: as shown in Figure 1 to Figure 3, a kind of bridge beam body lifting system being mounted on bridge pier, including bridge pier
Fixed device and lifting component, the fixed device of bridge pier include two fixinig plates being oppositely arranged 1, and fixinig plate 1 is vertically arranged and water
Square to arc-shaped, fixinig plate 1 is adjacent to fixation along 2 peripheral surface pairing of bridge pier, and there are between deformation between two fixinig plates 1
Gap, the fixed device of bridge pier further include that corresponding two fixinig plate interstitial sites are horizontally disposed for generating fixinig plate fastening deformation
Fastening bolt 3, the fixed device upper surface of bridge pier are formed with horizontal support platform, and lifting component includes in support platform along bridge
The upward jack 4 of pier circumferentially, wherein lifting component further includes the whole equal power ring 5 in horizontal annular, equal power ring 5
It is set in outside the support of bridge pier upper end, the jacking force surface that equal 5 upper surface of power ring is and bridge 6 connects, equal 5 lower surface of power ring is
The jacking stress surface to connect with 4 upper end of jack.
In this way, bridge jacking stress surface is expanded after being provided with equal power ring, it can be preferably equal by the top lift of jack
It is even to be reliably passed up to bridge lower surface, the synchronism of jacking is improved, while can be by the biggish jacking load in part
It is dispersed on entire acting surface, effectively reduces local stress, the generation for preventing beam body bottom surface local compression from destroying improves jacking
Effect and stability.
Wherein, the equal power ring 5 is obtained by the stiffener of two semi-circular shape, and stiffener end has for the perpendicular of docking
To seamed edge, it is provided with stiffener connection bolt on vertical seamed edge by two stiffeners and is connected as equal power ring 5.
In this way, power ring is not necessarily to just be packed into bridge pier in bridge construction construction, it is more convenient when needing to install the present apparatus
It is reloaded into equal power ring.
Wherein, stiffener is made using boiling steel.This low in cost and intensity is preferable, can better ensure that the same of jacking
Step property.
Wherein, stiffener and its vertical seamed edge are one piece of integral plate.It is not welded in this way, it is remaining to reduce welding
Stress and residual deformation guarantee the flatness of stiffener.
Wherein, stiffener lower surface is provided with several ribbed stiffeners 7 diametrically arranged, ribbed stiffener 7 is circumferentially uniform
There is one fixed width single ribbed stiffener upper end and stiffener contact area to be made to be greater than jack upper end end face face for arrangement, ribbed stiffener
Product.
In this way, stiffener stiffness by itself, Reducing distortion can be improved in ribbed stiffener, while jack is also used as to putting more energy into
Force transition between plate, enables the top lift of jack to be distributed more uniformly across on stiffener, preferably improves top
Rise force application stabilization.
Wherein, jack top surface and the position of ribbed stiffener contact are correspondingly arranged on billet 8, and 8 upper surface of billet is at least
It is contacted with two ribbed stiffeners.
It contact each 4 upper end end face of jack can at least with two ribbed stiffeners, be more uniformly stressed it,
Better ensure that the overall stability of lifting force.
Wherein, ribbed stiffener 7 is soldered to stiffener bottom surface by steel bar and obtains.
It can guarantee the intensity between ribbed stiffener and steel plate in this way.
Wherein, in the fixed device of the bridge pier, 1 peripheral surface of fixinig plate circumferentially have it is several diametrically
The force rib 9 extended horizontally outward, corresponding force 9 outer end of rib of two fixinig plates 1 are respectively correspondingly connected in the tight of arc
Admittedly covering 10 medial surfaces, there is the fastening for docking diametrically extended outward to form to connect for two 10 both ends ends of adapter sleeve
Fishplate bar, there are the intervals for deformation between opposite fastening connecting plate, and it is opposite that the fastening bolt 3 is fixedly connected on every two
Between fastening connecting plate.
In this way, the fixed device of this bridge pier is in use, be first to drive adapter sleeve to generate inside compression by fastening bolt to become
Shape converts the inward pressure that diametrically face fixinig plate applies for the power that the compression deforms then by force rib,
So that fixinig plate, which is inwardly adjacent to, is fixed on bridge pier peripheral surface.This structure and in the prior art fastening bolt are connected directly between solid
The mode of stator end is compared, and existing structure is by fastening bolt direct pull fixinig plate fastening deformation and to be fitted in bridge pier
Peripheral surface, the deformation of such fixinig plate itself will receive the obstruction of frictional force, reduce deformation and compress effect, simultaneously because becoming
The inconsistent meeting of shape effect is so that the inside pressing force size and Orientation of fixinig plate is unevenly distributed, closer to fastening bolt position
Deformation effect is more abundant thus pressing force is bigger, and the fixinig plate pressing force far from fastening bolt position is smaller.And this bridge pier is solid
Determine in device, be additionally arranged a hanging adapter sleeve, is converted again by force rib after pulling adapter sleeve deformation by fastening bolt
Apply inside pressing force for diametrical direction face fixinig plate.In this way fixinig plate by after force rib stress again pressuring action to bridge
Pier peripheral surface, so that stress diametrically inwardly applies, Impact direction is more balanced consistent.Simultaneously as tight
Gu set is arranged every sky, deformation is not by friction power limit, therefore fastening bolt enables to adapter sleeve preferably to generate inside change
Shape can generate bigger and more evenly inside so that fastening bolt is in the case where identical fastening amount to fixinig plate
Pressing force.Fastening effect is greatly improved, device stability is improved.In addition, the structure is also more conducive to fixed dress
The formation of upper support platform is set, conducive to the installation support for realizing jack.
Wherein, fastening bolt 3 is high-strength bolt.Bolt clipping forcee can be preferably improved in this way.
Wherein, the fixinig plate, force rib, adapter sleeve and fastening connecting plate are that Steel material is made.It in this way can be more preferable
Ground proof strength.
Wherein, 10 thickness of adapter sleeve is greater than 1 thickness of fixinig plate.Fixinig plate thickness is smaller in this way is conducive to preferably improve friction
Power, adapter sleeve thickness is larger to be conducive to preferably provide pressing force by deformation.Preferably the present apparatus is enabled to clench bridge
Pier pier top provides good frictional force counter-force for workbench, to prevent the downslide in jack-up construction, while can also preferably make
Pier top concrete holds three-dimensional restrained condition, prevents pier top concrete from damaging.
Wherein, fastening connecting plate and adapter sleeve 10 obtain for monoblock cast.Globality can preferably be improved.
Wherein, exert a force is to be welded and fixed between rib 9 and 10 inner surface of 1 outer surface of fixinig plate and adapter sleeve.So more
Facilitate construction to manufacture, reduces manufacturing cost.
Wherein, force rib 9 is vertical plate structure, and force 9 upper end of rib and 10 upper end of adapter sleeve are in same level.
The composition and load of the support platform of the fixed device upper end of bridge pier more convenient in this way.
Wherein, force rib 9 and 10 upper end face of adapter sleeve also support the support ring for being provided with that an entirety is in horizontal annular
Plate 11, support 11 upper surface of ring flat-plate constitute support platform and for installing jack.
It in this way, constituting support platform by support ring flat-plate, can preferably facilitate installation and the load of jack, improve dress
Set overall stability.
Wherein, support ring flat-plate 11 is made using Steel material.Strength and stability can be better ensured that in this way.
Wherein, support ring flat-plate 11 is obtained by being connected after two half ring flat-plate of arc docking using connection bolt.So more
Facilitate installation.
Claims (10)
1. a kind of bridge beam body lifting system being mounted on bridge pier, including the fixed device of bridge pier and lifting component, bridge pier are fixed
Device includes two fixinig plates being oppositely arranged, and fixinig plate is vertically arranged and horizontal direction is arc-shaped, and fixinig plate is along bridge pier circumferential direction
Surface pairing is adjacent to fixation, and there are the gap for deformation between two fixinig plates, the fixed device of bridge pier further includes corresponding two solid
Stator interstitial site is horizontally disposed for generating the fastening bolt of fixinig plate fastening deformation, and the fixed device upper surface of bridge pier is formed
There is horizontal support platform, lifting component includes the upward jack in support platform along bridge pier circumferentially, feature
It is, lifting component further includes the whole equal power ring in horizontal annular, and equal power ring set is located at outside the support of bridge pier upper end, equal power ring
The jacking force surface that upper surface is and bridge connects, the jacking stress surface that equal power ring lower surface is and jack upper end connects.
2. being mounted on bridge beam body lifting system on bridge pier as described in claim 1, which is characterized in that the equal power ring by
The stiffener of two semi-circular shape obtains, and stiffener end has the vertical seamed edge for docking, is provided with and adds on vertical seamed edge
Strength plate connects bolt and two stiffeners is connected as equal power ring.
3. being mounted on the bridge beam body lifting system on bridge pier as claimed in claim 2, which is characterized in that stiffener lower surface
Several ribbed stiffeners diametrically arranged are provided with, ribbed stiffener is circumferentially evenly arranged, and ribbed stiffener makes with one fixed width
Single ribbed stiffener upper end and stiffener contact area are greater than jack upper end face area.
4. being mounted on bridge beam body lifting system on bridge pier as claimed in claim 3, which is characterized in that jack top surface and
The position of ribbed stiffener contact is correspondingly arranged on billet, and billet upper surface is at least contacted with two ribbed stiffeners.
5. being mounted on the bridge beam body lifting system on bridge pier as claimed in claim 3, which is characterized in that ribbed stiffener is by steel bar
Stiffener bottom surface is soldered to obtain.
6. being mounted on the bridge beam body lifting system on bridge pier as claimed in claim 2, which is characterized in that the bridge pier is fixed
In device, the fixinig plate peripheral surface circumferentially has several force ribs diametrically extended horizontally outward, and two
The corresponding force rib outer end of fixinig plate is respectively correspondingly connected with the adapter sleeve medial surface in an arc, two adapter sleeve both ends end
With the fastening connecting plate diametrically extended outward to form for docking, there are for becoming between opposite fastening connecting plate
The interval of shape, the fastening bolt are fixedly connected between the opposite fastening connecting plate of every two.
7. being mounted on the bridge beam body lifting system on bridge pier as claimed in claim 6, which is characterized in that the fixinig plate,
Force rib, adapter sleeve and fastening connecting plate are that Steel material is made.
8. being mounted on the bridge beam body lifting system on bridge pier as claimed in claim 7, which is characterized in that adapter sleeve thickness is big
In fixinig plate thickness.
9. being mounted on the bridge beam body lifting system on bridge pier as claimed in claim 6, which is characterized in that force rib and fastening
It puts on end surfaces and also supports the support ring flat-plate for being provided with that an entirety is in horizontal annular, support ring flat-plate upper surface constitutes support platform
And for installing jack.
10. being mounted on bridge beam body lifting system on bridge pier as claimed in claim 9, which is characterized in that support ring flat-plate according to
It is connected after two half ring flat-plates of arc docking using connection bolt and is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027380.2A CN109024316B (en) | 2018-09-04 | 2018-09-04 | Bridge body lifting system installed on bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027380.2A CN109024316B (en) | 2018-09-04 | 2018-09-04 | Bridge body lifting system installed on bridge pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109024316A true CN109024316A (en) | 2018-12-18 |
| CN109024316B CN109024316B (en) | 2020-07-28 |
Family
ID=64623892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811027380.2A Expired - Fee Related CN109024316B (en) | 2018-09-04 | 2018-09-04 | Bridge body lifting system installed on bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109024316B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778680A (en) * | 2019-02-27 | 2019-05-21 | 长安大学 | A kind of bridge pier anti-freeze expansion system and frost heave stress monitoring method |
| CN110700113A (en) * | 2019-11-05 | 2020-01-17 | 中建交通建设集团有限公司 | Prestress applying device of non-prestressed beam bridge and construction method thereof |
| CN112985565A (en) * | 2021-02-03 | 2021-06-18 | 中铁工程设计咨询集团有限公司 | Bridge weighing method |
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| CN2424230Y (en) * | 2000-05-25 | 2001-03-21 | 徐斌 | Maintenance appts. for bridge abutment |
| CN1515751A (en) * | 2003-08-28 | 2004-07-28 | 斌 徐 | Maintenance equipment for bridge |
| KR20080017240A (en) * | 2006-08-21 | 2008-02-26 | 주식회사 신화 엠앤씨 | J.k bracket method |
| JP4963476B2 (en) * | 2008-01-31 | 2012-06-27 | 株式会社Ｉｈｉインフラシステム | Replacement method of slip resin plate for bridge support |
| CN102733320A (en) * | 2012-06-21 | 2012-10-17 | 河海大学 | Pier annular bracket type column embracing beam for jacking bridge |
| CN204715225U (en) * | 2015-05-31 | 2015-10-21 | 西安公路研究院 | A kind of bridge jacking platform based on steel hoop |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2424230Y (en) * | 2000-05-25 | 2001-03-21 | 徐斌 | Maintenance appts. for bridge abutment |
| CN1515751A (en) * | 2003-08-28 | 2004-07-28 | 斌 徐 | Maintenance equipment for bridge |
| KR20080017240A (en) * | 2006-08-21 | 2008-02-26 | 주식회사 신화 엠앤씨 | J.k bracket method |
| JP4963476B2 (en) * | 2008-01-31 | 2012-06-27 | 株式会社Ｉｈｉインフラシステム | Replacement method of slip resin plate for bridge support |
| CN102733320A (en) * | 2012-06-21 | 2012-10-17 | 河海大学 | Pier annular bracket type column embracing beam for jacking bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778680A (en) * | 2019-02-27 | 2019-05-21 | 长安大学 | A kind of bridge pier anti-freeze expansion system and frost heave stress monitoring method |
| CN110700113A (en) * | 2019-11-05 | 2020-01-17 | 中建交通建设集团有限公司 | Prestress applying device of non-prestressed beam bridge and construction method thereof |
| CN112985565A (en) * | 2021-02-03 | 2021-06-18 | 中铁工程设计咨询集团有限公司 | Bridge weighing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109024316B (en) | 2020-07-28 |
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