CN106401198A - Large-span steel gallery lifting equipment and construction method - Google Patents
Large-span steel gallery lifting equipment and construction method Download PDFInfo
- Publication number
- CN106401198A CN106401198A CN201610412809.4A CN201610412809A CN106401198A CN 106401198 A CN106401198 A CN 106401198A CN 201610412809 A CN201610412809 A CN 201610412809A CN 106401198 A CN106401198 A CN 106401198A
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- Prior art keywords
- steel
- lifting
- joist
- vestibule
- steel vestibule
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/163—Jacks specially adapted for working-up building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0046—Loggias
Abstract
The invention discloses large-span steel gallery lifting equipment. The large-span steel gallery lifting equipment comprises a box-shaped joist used for supporting and driving steel galleries to be lifted and lifting brackets installed in the positions, on the left sides and the right sides of the steel galleries, of the roof of a tower building. Lifters are installed on the lifting brackets and provided with steel strands which are fixed to the box-shaped joist and drive the box-shaped joist to be lifted. The invention further provides a large-span steel gallery joist type graded lifting construction method. Layered assembling is conducted below the projections of the predetermined installation positions of the steel galleries; the lifting brackets and the lifters are installed in the positions, at the two ends, of the roof of the tower building; integral lifting of the steel galleries is controlled through a hydraulic lifting system; and the box-shaped joist serves as a lifting anchorage fixed point carrier, so that the form that a traditional downward lifting point is directly welded and anchored to a steel structure is replaced, and the steel structure is protected; and in addition, repeated lifting of the steel galleries can be completed only by arranging the lifting brackets and the lifters at the roof of the tower building at a time, thus, secondary variation of the positions of the lifters is avoided, and the construction process is greatly simplified.
Description
Technical field
Technical field of building construction of the present invention, particularly belongs to steel vestibule lifting construction technology.
Background technology
For playing the aerial Steel corridor of interconnection function in skyscraper, not only construction environment is more and more multiple
Miscellaneous, and steel structure also becomes increasingly complex：In irregular shape or need repeatedly be lifted in batches.For biography
The mode that the steel vestibule of system is lifted several times, the lower anchor point of lifting is typically directly welded on steel vestibule, because
And upper strata steel vestibule, after the completion of lifting, can block the lifting circuit of lower floor's steel vestibule, can only become lifter
Move feasible location below the steel vestibule of upper strata and just can continue to lift up understructure, lifting bracket and lifter
Change and consume very considerable labour cost, fee of material, economy benefit is poor；And construction process is loaded down with trivial details, indulge in
Miss the duration.
Content of the invention
The technical problem to be solved be exactly provide a kind of large-span steel vestibule joist type lifting means and
Gradation lifting construction method, convenient construction, reduces construction cost, reduction of erection time.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that：A kind of large-span steel vestibule joist
Formula lifting means, including for support and drive steel vestibule lifting box joist and two about steel vestibule
The lifting bracket installed on the high building roof of side, described lifting bracket is provided with lifter, described lifter sets
There are the steel strand wires fixing and driving the lifting of box joist with box joist.
Preferably, described box joist is welded by the steel plate of model Q345b, described box joist bag
Include the horizontal steel plate be arrangeding in parallel up and down and along in front and back to the vertical steel being vertically supported between two horizontal steel plate
Plate.
Preferably, described box joist corresponding lifting suspension centre offers the hole passing through for steel strand wires, described steel
Twisted wire is provided with earth anchor below box joist.
Preferably, described box joist contacts both sides before and after dot center in hole and steel vestibule with box joist
Respectively it is welded with reinforcement steel plate.
Preferably, described steel vestibule is provided with clamp with box joist contact position and is fixed.
Preferably, described clamp includes direction in vertical section that bottom is welded and fixed and vertical section with box joist
Side projects and presses the nose section being fixed on steel vestibule bottom horizontal plate.
Present invention also offers a kind of large-span steel vestibule joist type gradation lifting construction method, walk including following
Suddenly：
Step 1：Steel vestibule is assembled, carries out the layering of steel vestibule assembled, between adjacent two layers steel vestibule on the moulding bed of ground
Supported with short steel column；
Step 2：Lifting bracket and lifter are installed, and install lifting bracket and lifter in steel vestibule both sides high building roof；
Step 3：Box joist is installed, using tower crane, box joist is promoted to immediately below the steel vestibule of upper strata, lifting is hung
The corresponding hole center of point and should lift suspension centre vertical alignment with floor top, after alignment, using clamp by box
Joist is fixed on the steel vestibule of upper strata；
Step 4：Steel strand, wear earth anchor, steel strand wires penetrate from the bottom to top it is ensured that steel strand wires at earth anchor at least
20cm surplus, then locks earth anchor；
Step 5：Lift system connects and is debugged；
Step 6：Carry out upper strata steel vestibule examination lifting using lifter, lifter cylinder pressure gradually raises, by steel
Vestibule is promoted to and hovers 12 hours at 250mm；
Step 7：Upper strata steel vestibule is formally lifted, and lifting speed maintains between 0.1m/min～0.2m/min, lifting
After putting in place, using lifter pointwise, steel vestibule is finely tuned to designed elevation；
Step 8：Lifting process monitors, in each lift stroke, monitor in real time lifter working condition, and often lifted
6m, should control lifter pressure offset to be less than 20%, also with apparatus measures steel vestibule each point absolute altitude,
Adjustment Structure Attitude in time, then proceedes to be lifted；
Step 9：Lifting is in place and para-position connects, and steel vestibule is connected using bearing pin with high building, arranges bi-lug plate in high building,
Steel vestibule end arranges monaural plate, and bi-lug plate and monaural plate arrange the pin-and-hole passing through for bearing pin；
Step 10：Unloading, unloads according to the ascending order of lifting counter-force successively step by step according to simulation result of calculation,
Box joist is slowly dropped to ground, unclamps lower anchor point；
Step 11：Lower floor's steel vestibule lifting prepares, and clamp is cut away, is promoted to down box joist using tower crane
Below layer steel vestibule, again it is fixed on lower floor's steel vestibule with clamp；
Step 12：Lower floor's steel vestibule examination lifting, formal lifting, para-position connect.
The picking-up equipment that the present invention is lifted as steel vestibule using box joist, lower anchor point is arranged in box support
Liang Shang, thus replacing suspension centre under tradition directly weld the form being anchored on steel construction, protects steel construction；
Additionally, being staggered with steel construction in vertical direction it is ensured that being lifted in upper strata steel vestibule in the position of lower anchor point
After the completion of will not hinder the lifting route of lower floor's steel vestibule, only need to arrange a lifting bracket in high building roof
And lifter can complete steel vestibule and repeatedly be lifted, thus avoiding the secondary change of lifter position, significantly
Simplify construction process, above-mentioned well solve the problems, such as traditional multiple hoisting way of steel vestibule.
Brief description
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is steel vestibule lift system joist position elevation；
Fig. 2 is steel vestibule lift system joist bit plane figure；
Fig. 3 is steel vestibule lift system joist position profile；
Fig. 4 is steel vestibule lift system joist position 3D effect figure；
Fig. 5 is joist 3D effect figure；
Fig. 6 is steel vestibule in moulding bed higher slice assembly schematic diagram；
Fig. 7 integrally lifts schematic diagram for upper strata steel vestibule；
Fig. 8 is that lower floor's steel vestibule lifting prepares schematic diagram；
Fig. 9 integrally lifts schematic diagram for lower floor's steel vestibule；
In figure：1. box joist, 2. steel vestibule, 3. hole, 4. steel strand wires, 5. clamp, 6. short steel column, 7. carries
Liter support, 8. lifter, 9. upper strata steel vestibule, 10. earth anchor, 11. otic placodes, 12. lower floor's steel vestibules,
13. backing plates, 14. reinforcement steel plates, 15 roofs.
Specific embodiment
As shown in Figures 1 to 5, a kind of large-span steel vestibule joist type lifting means, including for support simultaneously
The box joist 1 of steel vestibule 2 lifting and carrying of installing are driven on steel vestibule left and right sides high building roof 15
Rise support 7, described lifting bracket 7 is provided with lifter 8, described lifter is provided with to be fixed with box joist
And drive the steel strand wires 4 of box joist lifting.In the present embodiment, two-layer steel vestibule, i.e. upper strata steel vestibule are set
9 and lower floor's steel vestibule 12.Steel vestibule is connected using bearing pin and otic placode 11 with high building, arranges bi-lug plate in high building,
Steel vestibule end arranges monaural plate, and bi-lug plate and monaural plate arrange the pin-and-hole passing through for bearing pin.
Wherein, described box joist corresponding lifting suspension centre offers the hole 3 passing through for steel strand wires 4, described steel
Twisted wire is provided with the earth anchor 10 of steel strand wires and steel vestibule locking below box joist, earth anchor 10 and steel vestibule it
Between be provided with backing plate 13.Described box joist is contacted two before and after dot center with box joist in hole and steel vestibule
Side is respectively welded with reinforcement steel plate 14.Described steel vestibule is provided with clamp 5 with box joist contact position and is fixed.
The box joist that in the present invention, the lifting of steel vestibule is suitable for, is welded by the steel plate of model Q345b,
Described box joist includes the horizontal steel plate be arrangeding in parallel up and down and along in front and back to being vertically supported at two horizontal steel
Vertical steel plate between plate, box joist cross section sectional dimension be 300mm × 300mm × 20mm ×
20mm.Accordingly open up the hole of diameter 110mm, so that steel strand wires pass through, hole in lifting hoisting point position
Positional distance steel vestibule girder steel center 520mm, and both sides and steel vestibule 2 before and after hole 3 center
Contact the reinforcement steel plate 14 that 20mm thickness Q345b is respectively welded in both sides before and after dot center with box joist 1, to add
Strong node strength.
As shown in figure 1, earth anchor 10 is temporarily fixed at below box joist hole location, after putting on steel strand wires,
By lifter, box joist is promoted to below steel vestibule, in each steel vestibule and box joist contact position,
All it is fixed using 4 20mm thickness " ┓ " shape clamps, it is solid with the welding of box joist that clamp includes bottom
In fixed vertical section and vertical section direction side project and press be fixed on prominent on steel vestibule bottom horizontal plate
Section, clamp lower end is only welded with box joist, and upper end is not done with steel vestibule and is connected.Hydraulic rockshaft configuration needs
Meet bearing capacity redundancy ＞ 1.25, steel strand wires configuration need to meet bearing capacity redundancy ＞ 2.25.
As Fig. 6 to Fig. 9, the technological principle of the present invention is as follows：
Carry out layering assembled below the projection of steel vestibule predetermined installation site, install in two ends high building roof 15 and carry
Rise support 7 and lifter 8, using hydraulic lifting system, steel vestibule is integrally lifted and be controlled, by case
Type joist 1 descends anchor point carrier as lifting it is ensured that lifting free pathway, thus only need to be in roof 15 cloth
Put a lifting means and steel vestibule gradation can be promoted to precalculated position.Wherein the core used by lifting construction sets
Standby is hydraulic lifting system, and this system is synchronous by lifter 8, steel strand wires 4, hydraulic pump source system, computer
Control and sensing and detecting system is formed with electric synchronization control system, can be by computer control system to lifting
Process carries out entirety and single-point controls.
The concrete operation of the present invention comprises following step：
Step 1：Steel vestibule 2 is assembled, carries out the layering assembly of steel vestibule, upper and lower two-layer steel is even on the moulding bed of ground
Arrange between corridor that the short steel column 6 of the high Q345 of preferred 500mm is supported, short steel column is rolled section steel, its
Sectional dimension is HM400mm × 300mm × 10mm × 16mm；；Steel vestibule splicing according to design requirement according to
Span 1/300 carries out arch camber, reaches arch camber by the sheet metal putting different-thickness in short steel column pad and requires.
Step 2：Lifting bracket 7 and lifter 8 are installed, and install and carry on steel vestibule both sides high building roof 15
Rise support 7 and lifter 8, wherein lifting bracket 7 and top layer stiffened column is welded to connect, two lifting brackets 7
Upper arrangement H profile steel beam, lifter is fixed on H profile steel beam using clamp 5；And install on lifting bracket
The high guiding trestle of 2m；
Step 3：Install box joist 1, using tower crane by box joist 1 be promoted to upper strata steel vestibule 9 just under
Side, is that on box joist, hole center should lift suspension centre vertical alignment, alignment with floor top to lower anchor point
Afterwards, using clamp 5, box joist 1 is fixed on steel vestibule 2；
Step 4：Steel strand 4, wear earth anchor 10, steel strand wires 4 penetrate from the bottom to top it is ensured that steel strand wires 4 exist
At least 20cm surplus at earth anchor 10, then locks earth anchor 10；
Step 5：Lift system connects, and connects lift system, using hander and hydraulic power unit side pointwise debugging
Lifter 7, after the completion of pointwise debugging, attended operation cabinet and computer, start overall debugging；
Step 6：Examination lifting, carries out upper strata steel vestibule 9 examination lifting, hydraulic rockshaft 8 liquid using lifter 7
Cylinder pressure pressure gradually raises, and is followed successively by the 3MPa of desirable pressure, in the case that Everything is fine, can continue
It is loaded into 60%, 90%, 100%.Steel vestibule is promoted at 250mm and hovers 12 hours；
Step 7：Formal lifting, as shown in figure 4, upper strata steel vestibule 9 is formally lifted, lifting speed maintains
Between 0.1m/min～0.2m/min, after lifting puts in place, using lifter 8 pointwise, steel vestibule 9 is finely tuned to setting
At meter absolute altitude；
Step 8：Lifting process monitors, in each lift stroke, monitor in real time lifter working condition, often
Lifting 6m, should control lifter 7 pressure offset to be less than 20%, also with apparatus measures steel vestibule each point
Absolute altitude, adjusts Structure Attitude in time, then proceedes to be lifted；
Step 9：Lift docking in place, steel vestibule is connected using bearing pin with high building, bi-lug plate be set in high building,
Steel vestibule end arranges monaural plate, after otic placode welding, should carry out ultrasound investigation it is ensured that welding quality, examine
After survey is qualified, it is connected with diameter 150mm bearing pin；
Step 10：Unloading, according to simulation result of calculation according to the ascending order of lifting counter-force successively step by step
Unloading, box joist 1 is slowly dropped to ground, unclamps lower anchor point；
Step 11：Lower floor's steel vestibule 12 lifting prepares, and clamp 5 is cut away, using tower crane by box joist
1 is promoted to below lower floor's steel vestibule 12, is again fixed on lower floor's steel vestibule 12 with clamp 5, concrete steps
With reference to step 3；
Step 12：Lower floor's steel vestibule 12 examination lifting, formal lifting, para-position connect, with reference to step 4～step
10.
The present invention is directed to traditional steel construction, and integral hoisting construction is made that larger improvement, case in technique several times
As steel vestibule lifting carrier, solve well when traditional steel construction is repeatedly lifted needs multiple cloth to type joist
Put the problem of lifting bracket and lifter, improve and significantly simplify construction process, shorten the duration, with
Shi Jieyue material labour cost, therefore easy construction, applied widely, economic benefit substantially, has very well
Application value.
Claims (7)
1. a kind of large-span steel vestibule joist type lifting means it is characterised in that：Including for support and drive steel even
The box joist of corridor lifting and the lifting bracket installed on the high building roof of the steel vestibule left and right sides, described carry
Rise, on support, lifter is installed, described lifter is provided with fixes with box joist and drive box joist to be lifted
Steel strand wires.
2. a kind of large-span steel vestibule joist type lifting means according to claim 1 it is characterised in that：Institute
State box joist to be welded by the steel plate of model Q345b, described box joist includes be arrangeding in parallel up and down
Horizontal steel plate and along in front and back to the vertical steel plate being vertically supported between two horizontal steel plate.
3. a kind of large-span steel vestibule joist type lifting means according to claim 2 it is characterised in that：Institute
State box joist corresponding lifting suspension centre and offer the hole passing through for steel strand wires, described steel strand wires are in box joist
Lower section is provided with earth anchor.
4. a kind of large-span steel vestibule joist type lifting means according to claim 3 it is characterised in that：Institute
State box joist and contact both sides before and after dot center with box joist in hole and steel vestibule and be respectively welded with reinforcement steel
Plate.
5. a kind of large-span steel vestibule joist type lifting means according to claim 1 it is characterised in that：Institute
State steel vestibule and be provided with clamp with box joist contact position and be fixed.
6. a kind of large-span steel vestibule joist type lifting means according to claim 5 it is characterised in that：Institute
State clamp and include direction side in vertical section that bottom is welded and fixed with box joist and vertical section and project and press
It is fixed on the nose section on steel vestibule bottom horizontal plate.
7. a kind of large-span steel vestibule joist type gradation lifting construction method is it is characterised in that comprise the steps：
Step 1：Steel vestibule is assembled, carries out the layering of steel vestibule assembled, between adjacent two layers steel vestibule on the moulding bed of ground
Supported with short steel column；
Step 2：Lifting bracket and lifter are installed, and install lifting bracket and lifter in steel vestibule both sides high building roof；
Step 3：Box joist is installed, using tower crane, box joist is promoted to immediately below the steel vestibule of upper strata, lifting is hung
The corresponding hole center of point and lift suspension centre vertical alignment with floor top, after alignment, using clamp by box support
Beam is fixed on the steel vestibule of upper strata；
Step 4：Steel strand, wear earth anchor, steel strand wires penetrate from the bottom to top it is ensured that steel strand wires at earth anchor at least
20cm surplus, then locks earth anchor；
Step 5：Lift system connects and is debugged；
Step 6：Carry out upper strata steel vestibule examination lifting using lifter, lifter cylinder pressure gradually raises, by steel
Vestibule is promoted to and hovers 12 hours at 250mm；
Step 7：Upper strata steel vestibule is formally lifted, and lifting speed maintains between 0.1m/min～0.2m/min, lifting
After putting in place, using lifter pointwise, steel vestibule is finely tuned to designed elevation；
Step 8：Lifting process monitors, in each lift stroke, monitor in real time lifter working condition, and often lifted
6m, should control lifter pressure offset to be less than 20%, also with apparatus measures steel vestibule each point absolute altitude,
Adjustment Structure Attitude in time, then proceedes to be lifted；
Step 9：Lifting is in place and para-position connects, and steel vestibule is connected using bearing pin with high building, arranges bi-lug plate in high building,
Steel vestibule end arranges monaural plate, and bi-lug plate and monaural plate arrange the pin-and-hole passing through for bearing pin；
Step 10：Unloading, unloads according to the ascending order of lifting counter-force successively step by step according to simulation result of calculation,
Box joist is slowly dropped to ground, unclamps lower anchor point；
Step 11：Lower floor's steel vestibule lifting prepares, and clamp is cut away, is promoted to down box joist using tower crane
Below layer steel vestibule, again it is fixed on lower floor's steel vestibule with clamp；
Step 12：Lower floor's steel vestibule examination lifting, formal lifting, para-position connect.
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| CN201610412809.4A CN106401198A (en) | 2016-06-14 | 2016-06-14 | Large-span steel gallery lifting equipment and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610412809.4A CN106401198A (en) | 2016-06-14 | 2016-06-14 | Large-span steel gallery lifting equipment and construction method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930541A (en) * | 2017-05-10 | 2017-07-07 | 中国建筑第二工程局有限公司 | A kind of construction method of suspension type steel vestibule |
| CN107012949A (en) * | 2017-05-10 | 2017-08-04 | 中国建筑第二工程局有限公司 | A kind of method for improving of large-span steel vestibule |
| CN107060105A (en) * | 2017-05-10 | 2017-08-18 | 中国建筑第二工程局有限公司 | A kind of lifting construction method of multiple steel vestibules between high building |
| CN109399487A (en) * | 2018-12-12 | 2019-03-01 | 中国建筑第四工程局有限公司 | A kind of device and method using small stroke hydraulic cylinder long range lifting heavy |
| CN112081390A (en) * | 2020-09-16 | 2020-12-15 | 中国建筑第二工程局有限公司 | Steel structure lifting, limiting and locking device and construction method thereof |
| CN112551380A (en) * | 2020-11-30 | 2021-03-26 | 浙江二十冶建设有限公司 | Steel corridor hoisting method and equipment thereof |
| CN113494127A (en) * | 2021-07-09 | 2021-10-12 | 上海宝冶集团有限公司 | Construction method for layered lifting of large-span open-web corridor steel platform |
| CN113863683A (en) * | 2021-12-02 | 2021-12-31 | 中铁建工集团有限公司 | Construction method for repeatedly lifting super high-rise top heavy steel truss corridor |
| CN114182963A (en) * | 2021-11-10 | 2022-03-15 | 浙江精工钢结构集团有限公司 | Construction method for reverse-order layered lifting of plane-overlapped multi-layer large-span truss structure |
| CN114873432A (en) * | 2022-05-19 | 2022-08-09 | 中国五冶集团有限公司 | Eccentric structure hydraulic lifting process balance control device and control method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930541A (en) * | 2017-05-10 | 2017-07-07 | 中国建筑第二工程局有限公司 | A kind of construction method of suspension type steel vestibule |
| CN107012949A (en) * | 2017-05-10 | 2017-08-04 | 中国建筑第二工程局有限公司 | A kind of method for improving of large-span steel vestibule |
| CN107060105A (en) * | 2017-05-10 | 2017-08-18 | 中国建筑第二工程局有限公司 | A kind of lifting construction method of multiple steel vestibules between high building |
| CN107060105B (en) * | 2017-05-10 | 2018-11-13 | 中国建筑第二工程局有限公司 | A kind of lifting construction method of multiple steel vestibules between high building |
| CN107012949B (en) * | 2017-05-10 | 2019-06-07 | 中国建筑第二工程局有限公司 | A kind of method for improving of large-span steel vestibule |
| CN109399487A (en) * | 2018-12-12 | 2019-03-01 | 中国建筑第四工程局有限公司 | A kind of device and method using small stroke hydraulic cylinder long range lifting heavy |
| CN112081390A (en) * | 2020-09-16 | 2020-12-15 | 中国建筑第二工程局有限公司 | Steel structure lifting, limiting and locking device and construction method thereof |
| CN112081390B (en) * | 2020-09-16 | 2021-12-14 | 中国建筑第二工程局有限公司 | Steel structure lifting, limiting and locking device and construction method thereof |
| CN112551380A (en) * | 2020-11-30 | 2021-03-26 | 浙江二十冶建设有限公司 | Steel corridor hoisting method and equipment thereof |
| CN113494127A (en) * | 2021-07-09 | 2021-10-12 | 上海宝冶集团有限公司 | Construction method for layered lifting of large-span open-web corridor steel platform |
| CN114182963A (en) * | 2021-11-10 | 2022-03-15 | 浙江精工钢结构集团有限公司 | Construction method for reverse-order layered lifting of plane-overlapped multi-layer large-span truss structure |
| CN113863683A (en) * | 2021-12-02 | 2021-12-31 | 中铁建工集团有限公司 | Construction method for repeatedly lifting super high-rise top heavy steel truss corridor |
| CN114873432A (en) * | 2022-05-19 | 2022-08-09 | 中国五冶集团有限公司 | Eccentric structure hydraulic lifting process balance control device and control method |
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