CN107841954A - A kind of linear adjuster of track girder ball pivot and method - Google Patents
A kind of linear adjuster of track girder ball pivot and method Download PDFInfo
- Publication number
- CN107841954A CN107841954A CN201711273180.0A CN201711273180A CN107841954A CN 107841954 A CN107841954 A CN 107841954A CN 201711273180 A CN201711273180 A CN 201711273180A CN 107841954 A CN107841954 A CN 107841954A
- Authority
- CN
- China
- Prior art keywords
- jack
- machine frame
- track girder
- leading screw
- crossbeam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of linear adjuster of track girder ball pivot and method, including the machine frame on bent cap and the embedded crossbeam being arranged on inside machine frame, the both ends of the machine frame are equipped with U-shaped stopper slot, the centre position of the machine frame is provided with load bearing cross beam with crossbeam corresponding position, movable jack base crossbeam is installed above the load bearing cross beam, three-dimensional jack is installed above the movable jack base crossbeam, jack entablature is installed at the top of the three-dimensional jack, the working method that the present invention is engaged using three-dimensional jack with leading screw support, so that the precision of the linear accurate adjustment of track girder ball pivot is higher；Machine frame matches somebody with somebody fining twisted steel tie rods using section steel manufacture and using temporary support pre-buried on beam of revealing all the details, lower and upper cross-member, and bearing capacity is strong, and the purpose tumbled is prevented when playing while accurate adjustment track girder line style purpose is reached and rising and falling track girder.
Description
Technical field
The present invention relates to track girder technical field of construction, the linear adjuster of specially a kind of track girder ball pivot and method.
Background technology
China is currently in the swift and violent period of economic development, and the convenience of traffic stands in the breach, and turns into one of obstacle, therefore
The construction of track girder is just more urgent, and the construction method commonly used in current conventional continuous system has cast in situs, freely-supported to become company
Continuous and section assembling several method.Because track girder is very strict to size and alignment control required precision, using cast in situs
Or the method for section assembling is difficult to meet to require；When using continuous system, it is necessary to use based on prefabrication, be aided with scene
The Simply supported non-uniform mode of cast-in-place connection.The single beam for meeting required precision is first prefabricated in the factory into, then transports to scene, is hung
Continuous structure is formed in joint casting concrete again after dress is in place, the construction method of this " simple-supported thencontinuous " is in state
Rich experience is have accumulated, but face continuous rigid frame PC track girders, its straddle seat using for many years on interior highway, railroad bridge
The line style of formula monorail track beam and required precision can not much meet to require, need us and solve.
The content of the invention
（One）The technical problem of solution
In view of the shortcomings of the prior art, the invention provides a kind of linear adjuster of track girder ball pivot and method, solve
State the problem of construction method of " simple-supported thencontinuous " of proposition can not meet continuous rigid frame PC track girder required precisions.
（Two）Technical scheme
To realize object above, the present invention is achieved by the following technical programs：A kind of linear adjuster of track girder ball pivot
And method, including the machine frame on bent cap and the embedded crossbeam being arranged on inside machine frame, the both ends of the machine frame
U-shaped stopper slot is equipped with, and the upper surface of machine frame is provided with both ends stopper slot corresponding position and slidably connected temporarily
Fitting, centre position and the crossbeam corresponding position of the machine frame are provided with load bearing cross beam, the top peace of the load bearing cross beam
Equipped with movable jack base crossbeam, three-dimensional jack, the three-dimensional are installed above the movable jack base crossbeam
Jack entablature is installed, bottom and the crossbeam corresponding position of the machine frame are provided with jack at the top of jack
Crossbeam, the load bearing cross beam and movable jack base crossbeam be integral type structure, and load bearing cross beam and jack entablature and
The fining twisted steel run through is installed between jack sill, is provided with beam above the jack sill and props up temporarily
Support, be welded with steel pipe ball pivot below temporary support on the beam, the lower section of the steel pipe ball pivot is corresponding with the upper surface of bent cap
Opening position is embedded with steel plate,
Spacing by anti-dumping earrings between the machine frame and crossbeam, the crossbeam is consolidated with anti-dumping earrings by overturn-preventing leading screw
Fixed connection, and leading screw support is also equipped between crossbeam and machine frame, spiral shell is also shelved in the bottom of the machine frame by regular worker
Bolt is fixedly connected with bent cap, and a side wall of machine frame is provided with the pre-buried temporary support of track girder.
Preferably, the steel pipe ball pivot is also including steel cylinder under metal fixture block, metal leading screw and temporary support, the interim branch
Support is lower to be welded with metal ball between steel cylinder and metal fixture block.
Preferably, the three-dimensional jack is at least 100t jack using bearing capacity, and three-dimensional jack also wraps
The precision regulating system of fluid pressure type is included, the precision regulating system of fluid pressure type can be controlled also by manually by voltage hydraulic power unit
Hydraulic pump control.
Preferably, leading screw support be oblique leading screw, and leading screw support by solid leading screw, leading screw steel pipe sleeve,
Leading screw top, screw block head, solid round steel, hex nut and steel wire rope composition, the leading screw steel pipe sleeve rotates with leading screw to be connected
Connect.
Preferably, the linear fine adjusting method of the crossbeam is as follows：
（1）, erector shelves；
（2）, crane by crossbeam rise hang in machine frame；
（3）, three-dimensional jack is correctly installed；
（4）, fall beam and check security, confirm safety after remove suspension hook；
（5）, calculate track girder on anchor point design three-dimensional coordinate and actual measurement anchor point three-dimensional coordinate；
（6）, support accurate adjustment track girder line style according to calculating structure and pass through three-dimensional jack and leading screw；
（7）, accurate adjustment carry out repetition measurement after 2 hours, after repetition measurement line style meets design requirement, remove machine frame.
（Three）Beneficial effect
The invention provides a kind of linear adjuster of track girder ball pivot and method.Possesses following beneficial effect：Using three-dimensional thousand
The working method that jin top is engaged with leading screw support so that the precision of the linear accurate adjustment of track girder ball pivot is higher, and three-dimensional jack can
With around, upper and lower three directions be finely adjusted, large carrying capacity is applied widely, uses easy-to-operate, you can
Electronic control is also manually controllable, and non-transformer can also work；Machine frame is faced using section steel manufacture and using pre-buried on beam of revealing all the details
When support, lower and upper cross-member matches somebody with somebody fining twisted steel tie rods, and bearing capacity is strong, is played while accurate adjustment track girder line style purpose is reached
The purpose tumbled is prevented when rising and falling track girder.
Brief description of the drawings
Fig. 1 is the structure principle chart of the present invention；
Fig. 2 is the side cross-sectional semi-cutaway of the present invention；
Fig. 3 is the structural representation of steel pipe ball pivot of the present invention；
Fig. 4 is partial enlarged drawing at A in Fig. 1 of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of linear adjuster of track girder ball pivot and method, as Figure 1-4, including installation
Machine frame 13 on bent cap and the embedded crossbeam 18 being arranged on inside machine frame 13, the both ends of machine frame 13 are equipped with U-shaped
Stopper slot, and the upper surface of machine frame 13 is provided with slidable temporary connection 6, frock with both ends stopper slot corresponding position
The centre position of frame 13 is provided with load bearing cross beam 12 with the corresponding position of crossbeam 18, and the top of load bearing cross beam 12 is provided with activity thousand
Jin top base crossbeam 11, the top of movable jack base crossbeam 11 is provided with three-dimensional jack 10, the top of three-dimensional jack 10
Portion is provided with jack entablature 9, and bottom and the corresponding position of crossbeam 18 of machine frame 13 are provided with jack sill 14, held
Weight crossbeam 12 and movable jack base crossbeam 11 are integral type structure, and load bearing cross beam 12 and jack entablature 9 and very heavy
The fining twisted steel 8 run through is installed between the sill 14 of top, the top of jack sill 14 is provided with temporary support on beam
4, the lower section of temporary support 4 is welded with steel pipe ball pivot 2, the lower section of steel pipe ball pivot 2 and the upper surface corresponding position of bent cap on beam
Steel plate 1 is embedded with,
Spacing by anti-dumping earrings 15 between machine frame 13 and crossbeam 18, crossbeam 18 passes through overturn-preventing leading screw with anti-dumping earrings 15
7 are fixedly connected, and leading screw support 5 is also equipped between crossbeam 18 and machine frame 13, and the bottom of machine frame 13 also passes through regular worker
Shelve bolt 16 to be fixedly connected with bent cap, and a side wall of machine frame 13 is provided with the pre-buried temporary support 17 of track girder.
In the present invention, steel pipe ball pivot 2 also including steel cylinder 203 under metal fixture block 201, metal leading screw 202 and temporary support, faces
When support is lower is welded with metal ball 3 between steel cylinder 203 and metal fixture block 201, be tapped with temporary support on the inwall of steel cylinder 203 in
Screw thread, metal ball 3 and metal fixture block 201 are made using No. 45 special steels, and steel cylinder 203 passes through the interior spiral shell on inwall under temporary support
Line realizes the regulation of height by rotation, realizes freely adjusting for the space inner orbit beam rail level gradient, and without being directed to respectively
Different gradient and cushion block that different gradients are fabricated separately carries out the domatic adjustment of track girder, it is practical and conveniently.
In the present invention, three-dimensional jack 10 is at least 100t jack using bearing capacity, and three-dimensional jack 10 is also
Precision regulating system including fluid pressure type, the precision regulating system of fluid pressure type can be controlled also by manual hand by voltage hydraulic power unit
Hydrodynamic press pump controls, and can be very good to adapt to non-transformer operation, and operating efficiency is higher, three-dimensional jack 10 upper and lower, front and rear and
Left and right three is two-way cylinder on direction.
In the present invention, leading screw support 5 be oblique leading screw, and leading screw support 5 by solid leading screw, leading screw steel pipe sleeve,
Leading screw top, screw block head, solid round steel, hex nut and steel wire rope composition, leading screw steel pipe sleeve are rotatablely connected with leading screw, are led to
The flexible of rotating threaded shaft steel pipe sleeve is crossed, reaches the purpose of the superelevation horizontal slope angle of adjustment track girder.
In the present invention, the linear fine adjusting method of crossbeam 18 is as follows：（1）, erector shelve 13, in Coping Construction by bent cap
The cage bar of stretching, cut on bent cap first time concrete surface, using mechanical connection, make the glitch-free cage bar shadow of its bent cap top surface
Ringing erector and shelve 13, top surface of the beam is cleared up on the bent cap that one needs to adjust line style, uneven place is leveled up with sheet metal, then with hanging
Machine frame 13 is arranged on bent cap by car, it is stuck on the projection of bent cap, then shelve bolt 16 with regular worker and be fixed on bent cap
Projection side；（2）, crane crossbeam 18 is risen and hung in machine frame 13, should be noted that track girder must be no less than 3 in storage during hanging beam
It could be set up after individual month, to reduce later stage deflection and uncertainty；（3）, three-dimensional jack 10 is correctly installed, treat three-dimensional thousand
After jin pushes up 10, jack entablature 9, jack sill 14 and fining twisted steel 8 in place, track girder is fallen horizontal under jack
On beam 14, adjustment overturn-preventing leading screw 7, the pull bar on the pull bar and bent cap on oblique leading screw support 5 and track girder is installed；
（4）, check security, confirm safety after remove suspension hook；（5）, to calculate anchor point design three-dimensional coordinate and actual measurement on track girder fixed
Site three-dimensional coordinate, according to key elements such as the sweep of circuit, elevation, across footpath, longitudinal slope, horizontal slopes, calculate track girder both ends and determine
The design three-dimensional coordinate in site, then with the actual three-dimensional coordinate of the total Station Measured anchor point, contrasted；（6）, according to calculating
Structure supports 5 accurate adjustment track girder line styles, the three-dimensional jack 10 at one every beam both ends by three-dimensional jack 10 and leading screw
Need line while link, track girder now is in micro- free state, three-dimensional jack 10, computer, total powerstation is connected, input
The three-dimensional coordinate of the anchor point at the track girder both ends of design, start three-dimensional jack and carry out real-time accurate adjustment, after accurate adjustment in place afterwards stand
To be withstood on steel pipe ball pivot 2 on the bottom steel plate of the pre-buried temporary support 17 of track girder, under be against on the pre-buried steel plate 1 of bent cap, use
The metal fixture block 201 of steel pipe ball pivot 2 and the pre-buried contact position of temporary support 17 of track girder are carried out welding locking by arc welding, simultaneously will
Steel cylinder 203 carries out welding locking with the pre-buried contact position of steel plate 1 of bent cap under the temporary support of steel pipe ball pivot 2, and installation is oblique simultaneously
To leading screw support 5, superelevation horizontal slope angle 5 is adjusted using leading screw support；（7）, accurate adjustment carry out repetition measurement, repetition measurement after 2 hours
After line style meets design requirement, machine frame 13 is removed.
In summary, using three-dimensional jack 10 and leading screw branch in a kind of linear adjuster of the track girder ball pivot and method
The working method that support 5 is engaged so that the precision of the linear accurate adjustment of track girder ball pivot is higher, and three-dimensional jack 10 can be front and rear, left
Right, upper and lower three directions are finely adjusted, and large carrying capacity is applied widely, uses easy-to-operate, you can Electronic control
Manually controllable, non-transformer can also work.
And according to the function and feature of track girder, after pour section and use slightly expanded concrete, the quality and line of cast-in-place part
Shape is the emphasis of control.In construction, advance dabbing is wanted in beam-ends face and bent cap face before pouring, and connects reinforcing bar, shuttering, all and
The related job done of template can start to pour into a mould concrete after supervising engineer checks accreditation.In order to ensure pier top concrete
Casting quality, pier top concrete will be poured slowly, the necessary vibration compacting of vibrating head, prevent empty generation.To ensure in cast
Concreting speed, prevent the generation of construction joint.To prevent dynamic load from being acted on bridge floor in three days after pier top cast,
Prevent micro-crack occur at pier top concrete.In summer day high temperature drying weather, poured when daily temperature is minimum.Avoid as far as possible
Constructed in high temperature or strong wind weather.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of linear adjuster of track girder ball pivot and method, including the machine frame on bent cap（13）Installed with embedded
In machine frame（13）Internal crossbeam（18）, it is characterised in that：The machine frame（13）Both ends be equipped with U-shaped stopper slot,
And machine frame（13）Upper surface and both ends stopper slot corresponding position slidable temporary connection is installed（6）, the work
Shelve（13）Centre position and crossbeam（18）Corresponding position is provided with load bearing cross beam（12）, the load bearing cross beam（12）It is upper
Side is provided with movable jack base crossbeam（11）, the movable jack base crossbeam（11）Top be provided with it is three-dimensional very heavy
Top（10）, the three-dimensional jack（10）Top jack entablature is installed（9）, the machine frame（13）Bottom with it is horizontal
Beam（18）Corresponding position is provided with jack sill（14）, the load bearing cross beam（12）With movable jack base crossbeam
（11）For integral type structure, and load bearing cross beam（12）With jack entablature（9）With jack sill（14）Between be provided with
The fining twisted steel run through（8）, the jack sill（14）Top temporary support on beam is installed（4）, on the beam
Temporary support（4）Lower section be welded with steel pipe ball pivot（2）, the steel pipe ball pivot（2）Lower section position corresponding with the upper surface of bent cap
The place of putting is embedded with steel plate（1）,
The machine frame（13）With crossbeam（18）Between pass through anti-dumping earrings（15）It is spacing, the crossbeam（18）With anti-dumping earrings
（15）Pass through overturn-preventing leading screw（7）It is fixedly connected, and crossbeam（18）With machine frame（13）Between be also equipped with leading screw support（5）,
The machine frame（13）Bottom bolt is also shelved by regular worker（16）It is fixedly connected with bent cap, and machine frame（13）Side
Wall is provided with the pre-buried temporary support of track girder（17）.
2. a kind of linear adjuster of track girder ball pivot according to claim 1 and method, it is characterised in that：The steel pipe
Ball pivot（2）Also include metal fixture block（201）, metal leading screw（202）With steel cylinder under temporary support（203）, under the temporary support
Steel cylinder（203）With metal fixture block（201）Between be welded with metal ball（3）.
3. a kind of linear adjuster of track girder ball pivot according to claim 1 and method, it is characterised in that：The three-dimensional
Jack（10）It is at least 100t jack, and three-dimensional jack using bearing capacity（10）Also the precision including fluid pressure type is adjusted
Section system, the precision regulating system of fluid pressure type can be controlled by voltage hydraulic power unit also to be controlled by manual hydraulic hand-pump.
4. a kind of linear adjuster of track girder ball pivot according to claim 1 and method, it is characterised in that：The leading screw
Support（5）For oblique leading screw, and leading screw supports（5）By solid leading screw, leading screw steel pipe sleeve, leading screw top, screw block head,
Solid round steel, hex nut and steel wire rope composition, the leading screw steel pipe sleeve are rotatablely connected with leading screw.
5. a kind of linear adjuster of track girder ball pivot according to claim 1 and method, it is characterised in that：The crossbeam
（18）Linear fine adjusting method it is as follows：
（1）, erector shelves（13）；
（2）, crane is by crossbeam（18）Rise and hang in machine frame（13）It is interior；
（3）, three-dimensional jack is correctly installed（10）；
（4）, fall beam and check security, confirm safety after remove suspension hook；
（5）, calculate track girder on anchor point design three-dimensional coordinate and actual measurement anchor point three-dimensional coordinate；
（6）, according to calculate structure pass through three-dimensional jack（10）Supported with leading screw（5）Accurate adjustment track girder line style；
（7）, accurate adjustment carry out repetition measurement after 2 hours, after repetition measurement line style meets design requirement, remove machine frame（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273180.0A CN107841954A (en) | 2017-12-06 | 2017-12-06 | A kind of linear adjuster of track girder ball pivot and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711273180.0A CN107841954A (en) | 2017-12-06 | 2017-12-06 | A kind of linear adjuster of track girder ball pivot and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107841954A true CN107841954A (en) | 2018-03-27 |
Family
ID=61663718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711273180.0A Pending CN107841954A (en) | 2017-12-06 | 2017-12-06 | A kind of linear adjuster of track girder ball pivot and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107841954A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677746A (en) * | 2018-06-28 | 2018-10-19 | 中铁十二局集团有限公司 | The automatic accurate adjustment method and system of swivel continuous beam for flat turn method construction |
| CN109853397A (en) * | 2019-03-29 | 2019-06-07 | 中铁上海工程局集团有限公司 | A kind of straddle-type monorail PC track girder LFM signal limiting device and application method |
| CN110820596A (en) * | 2019-12-09 | 2020-02-21 | 南京林业大学 | Temporary limiting device for linear adjustment of PC track beam and using method |
| CN111501438A (en) * | 2020-05-11 | 2020-08-07 | 中铁八局集团有限公司 | Continuous rigid frame PC track beam line shape adjusting construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200342350Y1 (en) * | 2003-09-22 | 2004-02-18 | 노윤근 | Apparatus for adjusting position and maintaining function according to lifting the upper structure of bridge |
| CN104032681A (en) * | 2014-06-30 | 2014-09-10 | 北京交通大学 | Linear adjustment method of track girder bridges of straddle-type monorail transportation simple-support-first rigid-framework-second system |
| CN106149563A (en) * | 2016-08-26 | 2016-11-23 | 中铁四局集团第二工程有限公司 | Stand alone type Sarasota built-in steel anchor beam accurate positioning device and installation method |
| CN208023413U (en) * | 2017-12-06 | 2018-10-30 | 中铁十局集团第三建设有限公司 | A kind of linear adjuster of track girder flexural pivot |
| CN109853397A (en) * | 2019-03-29 | 2019-06-07 | 中铁上海工程局集团有限公司 | A kind of straddle-type monorail PC track girder LFM signal limiting device and application method |
-
2017
- 2017-12-06 CN CN201711273180.0A patent/CN107841954A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200342350Y1 (en) * | 2003-09-22 | 2004-02-18 | 노윤근 | Apparatus for adjusting position and maintaining function according to lifting the upper structure of bridge |
| CN104032681A (en) * | 2014-06-30 | 2014-09-10 | 北京交通大学 | Linear adjustment method of track girder bridges of straddle-type monorail transportation simple-support-first rigid-framework-second system |
| CN106149563A (en) * | 2016-08-26 | 2016-11-23 | 中铁四局集团第二工程有限公司 | Stand alone type Sarasota built-in steel anchor beam accurate positioning device and installation method |
| CN208023413U (en) * | 2017-12-06 | 2018-10-30 | 中铁十局集团第三建设有限公司 | A kind of linear adjuster of track girder flexural pivot |
| CN109853397A (en) * | 2019-03-29 | 2019-06-07 | 中铁上海工程局集团有限公司 | A kind of straddle-type monorail PC track girder LFM signal limiting device and application method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108677746A (en) * | 2018-06-28 | 2018-10-19 | 中铁十二局集团有限公司 | The automatic accurate adjustment method and system of swivel continuous beam for flat turn method construction |
| CN109853397A (en) * | 2019-03-29 | 2019-06-07 | 中铁上海工程局集团有限公司 | A kind of straddle-type monorail PC track girder LFM signal limiting device and application method |
| CN110820596A (en) * | 2019-12-09 | 2020-02-21 | 南京林业大学 | Temporary limiting device for linear adjustment of PC track beam and using method |
| CN111501438A (en) * | 2020-05-11 | 2020-08-07 | 中铁八局集团有限公司 | Continuous rigid frame PC track beam line shape adjusting construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107841954A (en) | A kind of linear adjuster of track girder ball pivot and method | |
| CN104695337B (en) | Self-lifting sliding and turnover construction system and construction method | |
| CN105649334B (en) | A kind of concrete shear force wall tower crane attached wall construction method and its device | |
| CN109778721A (en) | Synchronization of jacking up bridge top and the bottom structure carries out the method that bridge increases transformation | |
| CN106245529B (en) | Railway tee girder safely and fast falls beam method | |
| CN106758879A (en) | A kind of method for runing the correction of high-speed railway bridge ballastless track structure | |
| CN102296542A (en) | Method for constructing high pier capping beams | |
| CN106836020A (en) | A kind of method for correcting error for runing high-speed railway bridge | |
| CN111335181A (en) | Mounting support frame and mounting method for cast-in-place concrete structure template of steel-concrete composite beam flange plate | |
| CN101294443A (en) | High altitude platform mounting method | |
| CN105839985A (en) | Hydropower station rectangular high tower hydraulic climb slip form system and construction method | |
| CN111287370A (en) | Externally-hung glass curtain wall system and construction method thereof | |
| CN101691813A (en) | Device and method for elevation synchronous compensation for super-high structure construction | |
| CN215482336U (en) | Multifunctional full-automatic climbing tower building device | |
| CN102733307A (en) | Method for constructing cast-in-place beam falsework | |
| CN212689005U (en) | Overhanging type formwork supporting structure for pouring retaining wall | |
| CN208023413U (en) | A kind of linear adjuster of track girder flexural pivot | |
| CN109235265A (en) | System for track girder of constructing | |
| CN106381810B (en) | With the cast-in-place outstanding method for filling beam of beam-column type bracket | |
| CN207047889U (en) | A kind of device for installing forging machine main frame embedded part | |
| CN100497834C (en) | Construction equipment for integral roof-holding highway bridge top structure | |
| CN206015523U (en) | The built-in steel anchor beam accurate positioning device of free-standing Sarasota | |
| CN206189607U (en) | Rag bolt location structure | |
| CN201648890U (en) | Displacement resisting control frame for construction of curve segment of track slab | |
| CN206052565U (en) | A kind of beam-column type bracket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |