CN107060070A - Load transfer device and the construction method that steel vestibule is lifted with the device - Google Patents
Load transfer device and the construction method that steel vestibule is lifted with the device Download PDFInfo
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- CN107060070A CN107060070A CN201710389740.2A CN201710389740A CN107060070A CN 107060070 A CN107060070 A CN 107060070A CN 201710389740 A CN201710389740 A CN 201710389740A CN 107060070 A CN107060070 A CN 107060070A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 147
- 239000010959 steel Substances 0.000 title claims abstract description 147
- 238000012546 transfer Methods 0.000 title claims abstract description 61
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims abstract description 16
- 238000013461 design Methods 0.000 claims abstract description 11
- 239000004567 concrete Substances 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 11
- 238000012790 confirmation Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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Classifications
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- 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
-
- 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
- E04G21/161—Handling units comprising at least considerable parts of two sides of a room or like enclosed space
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The construction method of steel vestibule is lifted the invention discloses load transfer device and with the device, load transfer device includes embedded part, lateral load transfer girder steel, longitudinal load transfer girder steel and assembled moulding bed.The steel vestibule is connected between the agent structure built up, and is installed at the designed elevation of steel vestibule and lifting platform is provided with prepackage rod member, prepackage rod member, and install hydraulic rockshaft on lifting platform；Assembled load transfer device；Using truck crane on assembled moulding bed assembled steel vestibule.Assembled good steel vestibule is carried to absolute altitude by Hydraulic Hoisting Technique.The construction method breaches the bottleneck that the construction of steel vestibule installation on ground is limited by own wt, and the design weight of steel vestibule can be greatly increased, and large space, configurations, the overweight shaped steel vestibule designed for designing institute complete installation on ground and provide possibility.
Description
Technical field
The present invention relates to construction steel structure installation Technology field, more particularly to load transfer device and hung with the device
The construction method of steel loading vestibule.
Background technology
Pursuit with the growing tension of urban built-up land, people to the art of architecture is improved constantly and construction cost
Day by day increase severely, the Super High double tower even aerial long-span heavy type vestibule of multitower also will be increasing, is dissipated at present using bulk-breaking high-altitude
Dress, but assembly, welding job amount are big, site machinery equipment is difficult to meet lifting requirements, and required installation at high altitude moulding bed
Consumption is more, scaffolding height is big, there is very big safety, quality risk.The difficulty of construction is big, is unfavorable for steel construction field erected
Duration controls.Building big for span, highly high, the mode integrally lifted using hydraulic pressure is preferred, but steel vestibule form is each
Different, weight differs, and suitable assembled and method for improving must take into account cost, security and easy construction.
City major part construction project is both provided with multi-storey basement, and the conventional installation method of steel gallery structure is in underground ceiling
Assembled moulding bed is set on plate, then using tower crane on assembled moulding bed assembled steel gallery structure, then carry out hydraulic pressure and integrally lifted.
The weight of steel gallery structure is very huge, sometimes, and the quantity more than one of steel vestibule in project is built in monomer room, will be into
The steel vestibule of kiloton is assembled on basement roof on hundred, and basement roof is necessarily under stress for a long time.Work progress
In would generally face problems with：First, due to basement roof Lack of support, basement roof reinforced, made
Carried out returning back to top with such as shaped steel, full hall scaffold and support or increase reinforced concrete column, steel frame beam in basement structure to strengthen underground
The bearing capacity of ceiling plate, so consumes substantial amounts of material, time, adds construction cost；Second, when the steel of some engineerings
During vestibule preponderance, conventional basement roof of reinforcing can not also carry the weight of vestibule, and then basement bottom board cracking occur；
3rd, tower crane limited amount and floor space are big, are carried out using tower crane assembled, and assembled slow and tower crane can not meet other specialties
Construction.
If estimated not enough to above mentioned problem analysis, it may appear that high building setting of ground, component such as are crept at the series of questions.Shen
Please be number for the two tall buildings Steel corridor assemble method disclosed in 201510650609.8, the patent is with hydraulic lifting apparatus to master
Apply a pulling force on the lifting base of truss lower edge, so done with the load-bearing capacity value ... for playing reduction annex structural upright
Exactly in order to alleviate basement roof long-term stress the problem of.But the method, pulling force and bad control, construction hardly possible during practice of construction
Degree is big, cost is high, complex operation, and unreasonable stress easily occurs in what is more important assembly tapping vestibule, and structural stability is low,
Easily leave potential safety hazard.
The content of the invention
To solve the above problems, the present invention provides a kind of load transfer device, the load transfer device includes embedded part, horizontal stroke
To load transfer girder steel, longitudinal load transfer girder steel and assembled moulding bed, the embedded part is fixedly connected by anchor slab with bolt, described to bury
Part is arranged at the top of basement roof concrete column, and preburying part is divided into bolt, the anchor slab upper surface of the embedded part and lateral load
It is fixedly connected between transfer girder steel；Lateral load shifts girder steel and set along steel vestibule X direction parallel interval, and lateral load turns
Several longitudinal loads transfer girder steel is fixedly connected between shifting girder steel；The assembled moulding bed is fixed with longitudinal load transfer girder steel
Connection.
Further, the embedded part is formed by anchor slab and 3~5 bolt weldings, and anchor slab thickness is 30mm.
Further, anchor slab upper surface of the every lateral load transfer girder steel at least with an embedded part is fixedly connected.
Further, welded between embedded part and lateral load the transfer girder steel using fillet welding technique.
Another aspect of the present invention provides a kind of construction method that steel vestibule is lifted using described load transfer device,
The steel vestibule is connected between the agent structure built up, and the installation on ground method comprises the following steps：
Step 1, installed at the designed elevation of steel vestibule and lifting platform is provided with prepackage rod member 1, the prepackage rod member, and
Hydraulic rockshaft is installed on lifting platform；
Step 2, assembled load transfer device；
Step 3, using truck crane on assembled moulding bed assembled steel vestibule, it is assembled after the completion of, debugging hydraulic rockshaft and steel strand wires,
And check whether steel vestibule meets design requirement；
Step 4, after checking that confirmation is errorless, hydraulic rockshaft 2 takes the method for hierarchical loading to be preloaded；Hydraulic rockshaft is stretched
Cylinder pressure is gradually raised；
Step 5, when being promoted to away from designed elevation 1000mm, pause lifting is locked using hydraulic rockshaft, it is aerial stop stand with
Upper work is checked comprehensively；
Step 6, after confirmation is errorless, whole steel vestibule is promoted to designed elevation, suspended；Each suspension centre fine setting arrives its precise elevation
Up to design attitude；
Step 7, steel gallery structure is docked with prepackage rod member, forms monolithic stability stress system；
Step 8, after installation, the synchronous load shedding of each suspension centre is fully relaxed to steel strand wires, the deadweight of steel vestibule 9 is transferred to master
In body structure, measure for improvement is removed, the erection ＆ lift work of steel vestibule is completed.
Further, hydraulic rockshaft described in the step 1 uses steel strand wires as lifting load-bearing rigging, pacifies from the bottom to top
Steel loading twisted wire 5, wears earth anchor, and tension steel strand makes its uniform stressed, locks earth anchor.
Further, hierarchical loading described in step 4, the 20%, 40%, 60%, 70%, 80%, 90% of pressure needed for being followed successively by,
95%, 100%.
Further, the visual examination of carrying out flaw detection and weld seam is carried out to the steel vestibule.
Further, synchronously classification is progressively unloaded each suspension centre of the step 8, and unloading classification is carried out by 20%, after unloading 20%
Observation structure deformation, continues to unload 20% without abnormal conditions, and until load, all unloading is completed.
Further, time of repose is 4~12 hours in the step 5.
Beneficial effects of the present invention are embodied in：
（1）This construction method has cost low, and the high advantage of efficiency of construction, material can be recycled, and meets national green construction
It is required that, it is safe and reliable, on-site consolidation difficulty is greatly reduced, the hidden danger of settlement of foundation is eliminated, in quality, safety and duration etc.
It is favourable；
（2）This method avoid being reinforced on a large scale to basement roof, substantial amounts of reinforcement material, engineering time have been saved
And cost of labor, working load transfer device when assembled, overall construction intensity is good, be easy to maintenance to change, and reusable,
Load transfer device combination expansion is strong, can arrange on a large scale, can also very low range use；
（3）Because moulding bed and ground distance are near, for the more conventional construction of workmen's assembly welding parameters calculated structure, security
Improve, difficulty of construction reduction；
（4）The conventional assembling method of script, steel vestibule design weight can not be excessive, otherwise in installation on ground, basement roof
Ability to bear is not enough, easily causes and caves in, and the construction method breaches what the construction of steel vestibule installation on ground was limited by own wt
Bottleneck, the design weight of steel vestibule can be greatly increased, and be large space, configurations, overweight shaped steel vestibule that designing institute designs
Complete installation on ground and provide possible.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that or being understood by implementing the present invention.The main object of the present invention and further advantage can be by specification, power
Specifically noted scheme is realized and obtained in sharp claim.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is step 1 schematic diagram of the present invention.
Fig. 2 is embedded parts structure schematic diagram.
Fig. 3 is load transfer apparatus structure schematic diagram.
Fig. 4 is embedded part position top view in step 1.
Fig. 5 is step 2 schematic diagram of the present invention.
Fig. 6 is the top view of assembled load transfer device.
Fig. 7 is step 3 schematic diagram of the present invention.
Fig. 8 is steel vestibule position top view.
Fig. 9 is step 7 schematic diagram of the present invention.
Figure 10 is triangular frame structure schematic diagram.
Reference：1- prepackage rod member, 2- hydraulic rockshafts, 3- lifting platform, 4- agent structures, 5- steel strand wires,
6- load transfers device, 61- anchor slabs, 62- embedded parts, 63- bolts, 64- longitudinal loads transfer girder steel, 65- lateral loads turn
Move girder steel, 66- support steel beams,
Dress rod member, 11- negative ones layer, 12- basement roofs, 13- are mixed after 7- assembly moulding bed, 8- truck cranes, 9- steel vestibule, 10-
Solidifying Tu Liang, 14- concrete column.
Embodiment
A kind of load transfer device of the present invention and the construction method that steel vestibule is lifted with the device, steel vestibule 9 are connected to
Between agent structure 4 through building up, installation on ground steel vestibule 9 is promoted to absolute altitude using the method for hydraulic pressure lift, specific bag
Include following steps：
Step 1：Prepackage rod member 1 is installed at the designed elevation of steel vestibule 9, lifting platform 3 is set on prepackage rod member 1, set altogether
Put at least four groups lifting platforms 3, and one hydraulic rockshaft 2 of installation on every group of lifting platform 3（As shown in Figure 1）；Liquid is installed
Press synchronization lifting system equipment, including hydraulic pump source system, hydraulic rockshaft 2, sensor etc..
The hydraulic rockshaft 2 uses steel strand wires 5 as lifting load-bearing rigging, and steel strand wires 5 are installed from the bottom to top, wear ground
Anchor；The steel strand wires 5 are cut on demand, used after equating of polishing；Tension steel strand 5, makes its uniform stressed, locks earth anchor；Debugging
The hydraulic synchronizing lifting system equipment, checks whether all interim measures of hydraulic synchronizing lifting meet design requirement；Hydraulic pressure
Lifter 2, facility volume weight are smaller, and maneuverability is strong, have bad luck with it is easy for installation；Wherein, the quantity of suspension centre connects according to absolute altitude, steel
The actual conditions such as the weight of corridor 9 are configured.
Step 2：Assembled load transfer device 6.
Load transfer device 6 includes embedded part 62, lateral load transfer girder steel 65, longitudinal load transfer girder steel 64 and assembled tire
Frame 7；The top of 12 concrete column of basement roof 14 is provided with embedded part 62（As Figure 1 and Figure 4）, the embedded part 62 is by anchor slab
61 and 3 bolt weldings are formed, and the thickness of anchor slab 61 is 30mm, and preburying part is divided into bolt 63, the anchor slab 61 of the embedded part 62
Welded between upper surface and lateral load transfer girder steel 65 using fillet welding technique；After embedded part 62 is installed, the upper table of anchor slab 61
Face is higher by 30mm than floor plates（As shown in Figure 2）.
Three lateral loads shift girder steel 65 and set along the X direction parallel interval of steel vestibule 9, lateral load transfer girder steel
Four longitudinal load transfer girder steels 64 are fixedly connected between 65, as shown in Figure 5, Figure 6（In order to express clearly in wherein Fig. 6, save
Beams of concrete 13 is omited）；
Lateral load shifts girder steel 65 and longitudinal load transfer girder steel 64 using the high welded H section steel of material Q235,700mm（Steel
The selection of beam is various, can also use channel-section steel, I-steel）, loose mail welded and installed is carried out at the construction field (site).Lateral load shifts steel
Connected mode is uses carbon dioxide gas arc welding between beam 65 and longitudinal load transfer girder steel 64, and Type of Welding uses and opens slope
Mouth carries out partial penetrated form, and weld bead height is 5~7mm；Assembled moulding bed 7 is entered with longitudinal load transfer girder steel 64 using fillet welding technique
Row welding.The concrete structure of load transfer device 6 is as shown in Figure 3.
Embedded part 62 only needs to be arranged on the top of 12 concrete column of basement roof 14 in load transfer device 6, just can be effectively by steel
The assembled load of vestibule 9 is reached on concrete column 14 step by step, then is transferred to basement bottom board, longitudinal load transfer by concrete column 14
Girder steel 64, lateral load transfer girder steel 65 and basement roof 12 are directly maked somebody a mere figurehead and departed from, and disperseed, are weakened the assembled lotus of steel vestibule 9
The pressure to floor is carried, negative one layer 11, minus two layers and more layers basement structure will not ftracture, cave in, not made to floor face
Into destruction, safety guarantee is provided to workman's construction.
Step 3：Using truck crane 8 on assembled moulding bed 7 assembled steel vestibule 9, it is assembled after the completion of, debug hydraulic rockshaft 2
With steel strand wires 5, and check whether steel vestibule 9 meets design requirement, as shown in Figure 7, Figure 8（In order to express clearly in wherein Fig. 8,
Eliminate beams of concrete 13）.
Step 4：After checking that confirmation is errorless, hydraulic rockshaft 2 takes the method for hierarchical loading to be preloaded；Hydraulic pressure lift
Device 2 is stretched cylinder pressure and gradually raised, and the 20%, 40% of pressure, in the case where Everything is fine, can continue to be loaded into needed for being followed successively by
60%, 70%, 80%, 90%, 95%, 100%.
It should be noted in construction：When steel vestibule 9 will leave assembled moulding bed 7, it is understood that there may be each point feelings liftoff when different
Condition, should now reduce lifting speed, and the liftoff situation of each point is looked into sight closely, and " single-point is moved " lifting is done if necessary to ensure steel vestibule
9 levelness.
If steel vestibule 9 has movement when just starting lifting, Suspend Job is needed, the pressure of hydraulic test system is kept.It is right
Hydraulic synchronizing lifting system equipment is checked comprehensively, is confirming integrally-built stability and the no problem definitely situation of security
Under, it could start to continue to lift up.
During hierarchical loading, each step hierarchical loading is finished, and all should be suspended and be checked, before such as steel vestibule 9 is loaded
Deformation afterwards, and agent structure 4 stability situations such as.In the case where all going well, continue next step classification and add
Carry.
Step 5：When being promoted to away from designed elevation 1000mm, pause lifting is locked using hydraulic rockshaft 2, aerial to stop
12 hours are stood, makees to check comprehensively；Suspension centre structure, bearing system, lifting means, truss are checked emphatically, while to the knot of steel vestibule 9
Structure carries out the visual examination of carrying out flaw detection and weld seam.
Step 6：Whole steel vestibule 9 is promoted to designed elevation after confirmation is errorless, suspended；Each suspension centre fine setting makes it accurately carry
It is raised to up to design attitude；Static, the break-off of hydraulic rockshaft 2 is locked, the aerial statue of steel gallery structure is kept.
Step 7, as shown in figure 9, steel gallery structure is docked with prepackage rod member 1, monolithic stability stress system is formed.Specifically
For：1. fill rod member 10 after assembled, one end of rear dress rod member 10 and the diagonal web member of steel vestibule 9 are welded, the rear dress other end of rod member 10 with
Prepackage rod member 1 is welded；2. the lower boom at the two ends of steel vestibule 9 is welded with prepackage rod member 1；3. hydraulic rockshaft 2 starts classification and unloaded
Carry, weld the top boom of steel vestibule 9 with prepackage rod member 1 after the completion of unloading.
Step 8, after installation, the synchronous load shedding of each suspension centre is fully relaxed to steel strand wires 5, turns the deadweight of steel vestibule 9
Move in agent structure 4, remove measure for improvement, complete the erection ＆ lift work of steel vestibule 9.Each suspension centre synchronously progressively unload by classification
Carry, unloading classification is carried out by 20%, observation structure deformation after unloading 20%, continue to unload 20% without abnormal conditions, until
All unloading is completed load.
Wherein, the advantage of the load transfer device 6 in step 2 is to combine expansion by force, can on a large scale arrange, also may be used
With the use of very low range.The load transfer girder steel length of load transfer device 6 can be adjusted according to practice of construction demand.Underground
The top of 12 concrete column of ceiling plate 14 is provided with embedded part 62, and load transfer girder steel can be set along the X direction interval of steel vestibule 9
Put, load transfer girder steel can also be arranged to triangular frame structure according to demand（As shown in Figure 10）, triangular framing knot
Several support steel beams 66 are provided with structure, one base of the support steel beam 66 and triangle is parallel, and connected mode can be
Bolt connection or welding；Load transfer girder steel can also be arranged to it according to the actual assembled demand of embedded part 62 and steel vestibule 9
His shape, every lateral load transfer girder steel 65 is at least fixedly connected with the upper surface of anchor slab 61 of an embedded part 62.
To sum up, the present invention discloses a kind of load transfer device and the construction of steel vestibule is lifted with the load transfer device
Method, it is possible to achieve the installation on ground construction of super large shaped steel vestibule, by setting load transfer device 6 can be effectively by steel vestibule
9 assembled loads are reached on concrete column 14, then are transferred to basement bottom board by concrete column 14, longitudinal load transfer girder steel 64,
Lateral load, which shifts girder steel 65 and basement roof 12 and directly maked somebody a mere figurehead, to be departed from, and eliminates pressure of the load to floor, prevent from ftractureing,
Even cave in.Assembled good steel vestibule 9 is carried to absolute altitude by Hydraulic Hoisting Technique.Regulating system can be passed through in lifting process
Pressure and flow, acceleration and braking acceleration that strict control is started, it is ensured that steel vestibule 9 and agent structure 4 in lifting process
Stability.
In the lifting process of construction cell, lifting region rod member is needed to carry out temperature pier to meet overall lifting need
Ask, offset the deformation that weight stress is produced in lifting, form it into it is stable overall to be lifted, using prior art, herein
Repeat no more.The installation of hydraulic synchronizing lifting system equipment, debugging, using, unloading prior art is used, will not be repeated here.
The present invention preferably embodiment is the foregoing is only, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in the change or replacement expected, should all contain
Cover within protection scope of the present invention.
Claims (10)
1. load transfer device, it is characterised in that the load transfer device（6）Including embedded part（62）, lateral load transfer steel
Beam（65）, longitudinal load transfer girder steel（64）With assembled moulding bed（7）, the embedded part（62）By anchor slab（61）And bolt（63）It is fixed
Connection, the embedded part（62）It is arranged on basement roof（12）Concrete column（14）Top, preburying part is divided into bolt（63）, it is described
Embedded part（62）Anchor slab（61）Girder steel is shifted with lateral load in upper surface（65）Between be fixedly connected；Lateral load shifts girder steel
（65）Along steel vestibule（9）X direction parallel interval is set, lateral load transfer girder steel（65）Between be fixedly connected with several
Longitudinal load shifts girder steel（64）；The assembled moulding bed（7）Girder steel is shifted with longitudinal load（64）It is fixedly connected.
2. load transfer device as claimed in claim 1, it is characterised in that the embedded part（62）By anchor slab（61）With 3~5
Bolt welding is formed, anchor slab（61）Thickness is 30mm.
3. load transfer device as claimed in claim 1, it is characterised in that every lateral load shifts girder steel（65）Extremely
A few and embedded part（62）Anchor slab（61）Upper surface is fixedly connected.
4. load transfer device as claimed in claim 1, it is characterised in that the embedded part（62）Girder steel is shifted with lateral load
（65）Between welded using fillet welding technique.
5. the load transfer device described in a kind of usage right requirement 1 lifts the construction method of steel vestibule, the steel vestibule（9）Even
It is connected on the agent structure built up（4）Between, it is characterised in that the installation on ground method comprises the following steps：
Step 1, in steel vestibule（9）Designed elevation at install prepackage rod member（1）, the prepackage rod member（1）On be provided with lifting
Platform（3）, and in lifting platform（3）Upper installation hydraulic rockshaft（2）；
Step 2, assembled load transfer device（6）；
Step 3, using truck crane（8）In assembled moulding bed（7）Upper assembled steel vestibule（9）, after the completion of assembly, debug hydraulic rockshaft
（2）And steel strand wires（5）, and check steel vestibule（9）Whether design requirement is met；
Step 4, after checking that confirmation is errorless, hydraulic rockshaft（2）The method of hierarchical loading is taken to be preloaded；
Step 5, when being promoted to away from designed elevation 1000mm, pause lifting utilizes hydraulic rockshaft（2）Locking, is stopped quiet in the air
Put, make to check comprehensively；
Step 6, after confirmation is errorless, by whole steel vestibule（9）Designed elevation is promoted to, is suspended；Each suspension centre fine setting makes it accurately carry
It is raised to up to design attitude；
Step 7, steel gallery structure and prepackage rod member（1）Docking, forms monolithic stability stress system；
Step 8, after installation, the synchronous load shedding of each suspension centre to steel strand wires（5）It is fully relaxed, make steel vestibule（9）Deadweight turns
Move to agent structure（4）On, measure for improvement is removed, steel vestibule is completed（9）Erection ＆ lift work.
6. construction method as claimed in claim 5, it is characterised in that hydraulic rockshaft described in the step 1（2）Use steel
Twisted wire（5）As lifting load-bearing rigging, steel strand wires are installed from the bottom to top（5）, wear earth anchor, tension steel strand（5）, make it uniform by
Power, locks earth anchor.
7. construction method as claimed in claim 5, it is characterised in that hierarchical loading described in step 4, is followed successively by required pressure
20%, 40%, 60%, 70%, 80%, 90%, 95%, 100%.
8. construction method as claimed in claim 5, it is characterised in that to the steel vestibule（9）Carry out carrying out flaw detection and weld seam
Visual examination.
9. construction method as claimed in claim 5, it is characterised in that synchronously classification is progressively unloaded each suspension centre of step 8, is unloaded
Carry classification to carry out by 20%, observation structure deformation after unloading 20%, continue to unload 20% without abnormal conditions, until load
All unloading is completed.
10. construction method as claimed in claim 5, it is characterised in that time of repose is 4~12 hours in the step 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389740.2A CN107060070A (en) | 2017-05-27 | 2017-05-27 | Load transfer device and the construction method that steel vestibule is lifted with the device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389740.2A CN107060070A (en) | 2017-05-27 | 2017-05-27 | Load transfer device and the construction method that steel vestibule is lifted with the device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110017024A (en) * | 2019-04-22 | 2019-07-16 | 上海建工一建集团有限公司 | The construction method of the horizontal girder steel of contrary sequence method basement |
| CN110528678A (en) * | 2019-07-31 | 2019-12-03 | 中建三局第三建设工程有限责任公司 | A kind of multilayer steel frame vestibule installation method between staggered floor high building |
| CN111502275A (en) * | 2020-03-23 | 2020-08-07 | 中建五局第三建设有限公司 | Steel structure column staged bearing method for complex area with uneven geology |
| CN114541567A (en) * | 2022-03-04 | 2022-05-27 | 中建八局第二建设有限公司 | Construction method for irregular conjoined steel corridor in narrow and small site |
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| CN109399487B (en) * | 2018-12-12 | 2023-09-05 | 中国建筑第四工程局有限公司 | Device and method for lifting heavy objects in long distance by using small-stroke hydraulic cylinder |
| CN110017024A (en) * | 2019-04-22 | 2019-07-16 | 上海建工一建集团有限公司 | The construction method of the horizontal girder steel of contrary sequence method basement |
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| CN111502275A (en) * | 2020-03-23 | 2020-08-07 | 中建五局第三建设有限公司 | Steel structure column staged bearing method for complex area with uneven geology |
| CN114541567A (en) * | 2022-03-04 | 2022-05-27 | 中建八局第二建设有限公司 | Construction method for irregular conjoined steel corridor in narrow and small site |
| CN114809568A (en) * | 2022-03-30 | 2022-07-29 | 中国建筑第四工程局有限公司 | Heavy-load steel platform device for top plate of warehouse and assembling method thereof |
| CN114941432A (en) * | 2022-04-28 | 2022-08-26 | 中建三局集团华南有限公司 | Combined construction method for super-large-span prestressed beam and double-layer steel corridor inclined column |
| CN114941432B (en) * | 2022-04-28 | 2023-05-30 | 中建三局集团华南有限公司 | Combined construction method for ultra-large span prestressed beam and double-layer steel corridor inclined column |
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