CN107060105B - A kind of lifting construction method of multiple steel vestibules between high building - Google Patents
A kind of lifting construction method of multiple steel vestibules between high building Download PDFInfo
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- CN107060105B CN107060105B CN201710326724.9A CN201710326724A CN107060105B CN 107060105 B CN107060105 B CN 107060105B CN 201710326724 A CN201710326724 A CN 201710326724A CN 107060105 B CN107060105 B CN 107060105B
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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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
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B2001/3588—Extraordinary methods of construction, e.g. lift-slab, jack-block using special lifting or handling devices, e.g. gantries, overhead conveying rails
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Abstract
The lifting construction method of multiple steel vestibules between a kind of high building of the present invention, promotion sequence is low area's steel vestibule, middle area's steel vestibule, high area's steel vestibule, area low first, Zhong Qu, high area's steel vestibule absolute altitude at installation prepackage rod piece, setting promotes platform, while installing hydraulic rockshaft；Then, it is promoted to absolute altitude in the low area's steel vestibule of installation on ground, area's steel vestibule in moulding bed assembly is set up on low area's steel vestibule, and be promoted to absolute altitude；The assembled high area's steel vestibule of moulding bed is set up on the areas Zai Zhong steel vestibule, is promoted to absolute altitude and completes construction.The construction of multiple steel vestibules is not universal between high building, the construction method can significantly improve construction efficiency by engineering practice, ensure construction safety, the reduction of the workload amplitude peak of lifting, energy consumption and time have been saved, construction cost and installation difficulty are reduced, has met national green construction requirement, it can be to offer reference and instruct similar to multiple steel vestibule engineering constructions between two tall buildings later, there is the foreground promoted and applied.
Description
Technical field
The present invention relates to construction steel structure installation Technology field, more particularly to multiple steel vestibules carries between a kind of high building
Rise construction method.
Background technology
With the growing tension of urban built-up land, the pursuit of the art of architecture is continuously improved people and construction cost
Day by day increase severely, the multiple aerial long-span heavy type steel vestibules of Super High two tall buildings also will be increasing, big for span, and height is high
Building is preferred using the mode that hydraulic pressure is integrally promoted, but the multiple steel vestibule forms of two tall buildings are different, and weight differs, suitably
Method for improving must take into account cost, safety and easy construction.
Vestibule is one kind in Complex Tall Building system, it is a kind of connector, perpendicular to building transverse direction cloth
It sets, the Project case for only installing a vestibule is very more, and the construction of multiple steel vestibules is not universal between two tall buildings, can refer to
Example of constructing is extremely limited, moreover, steel vestibule is larger due to conducting oneself with dignity in installation on ground, whole promotion, there is lifting originally
Difficulty of construction is big, promotes the problems such as high with installation requirement.It is carried currently, the promotion operation of multiple steel vestibules is still based on single steel vestibule
Rise operating type：Assembled moulding bed is arranged on basement roof, hydraulic rockshaft is arranged at high area's steel vestibule absolute altitude for the first step
With promote platform, using truck crane, tower crane on assembled moulding bed assembled high area's steel vestibule；Second step promotes high area's steel vestibule,
Steel vestibule in area's in installation on ground setting hydraulic rockshaft and promotes platform at the areas Bing Zhong steel vestibule absolute altitude；Third walks, in promotion
Hydraulic rockshaft is arranged at the low area's steel vestibule of installation on ground, the areas Bing Di steel vestibule absolute altitude and promotes platform for area's steel vestibule；The
Four steps promote low area's steel vestibule.
There are the problem of one：Corresponding hydraulic rockshaft need to be all arranged in each steel vestibule promotion in the high building built up
With promotion platform, the installation measure amount that three steel vestibules promote needs is big, consumes a large amount of material, time, increases construction
Cost.Problem two：Three steel gallery structure weight are very huge, if three steel vestibules continue the assembly on basement roof,
Basement roof will be for a long time in great stress, and bearing capacity is much insufficient, easy to produce cracking, and safety obtains
It less than guarantee, needs to reinforce basement roof, using shaped steel, full hall scaffold return back to top supports or in basement knot
Increase reinforced concrete column, steel frame beam in structure to enhance the bearing capacity of basement roof, do so consume a large amount of material, it is artificial and when
Between, it dragged slowly construction speed, increased construction cost.It there is no the report of multiple steel vestibule lifting constructions between high building at this stage.
Invention content
To solve the above problems, the present invention provides a kind of lifting construction method of multiple steel vestibules between high building, it is intended to reduce
The difficulty of construction of the build process of multiple steel vestibules between two tall buildings, at the same shorten the basement roof load time, save be constructed into
Originally difficulty of construction, is reduced.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention provides a kind of lifting construction method of multiple steel vestibules between high building, promotion sequence be low area's steel vestibule 6, in
Area's steel vestibule 9, high area's steel vestibule 10, include the following steps：
Step 1, low area's steel vestibule 6, middle area's steel vestibule 9, high area's steel vestibule 10 designed elevation at be respectively mounted prepackage bar
Part 1, setting promotes platform 3 on high area's steel vestibule 10 prepackage rod piece 1, and installs hydraulic pressure lift on every group of promotion platform 3
Device 2；
Hydraulic synchronizing lifting system equipment, including hydraulic pump source system, hydraulic rockshaft are installed on the promotion platform 3
2, sensor, hydraulic oil pipe etc.；
Step 2, assembled under the 6 predetermined installation site of low area's steel vestibule projection using truck crane 8, connect according to low area's steel
The loading characteristic of corridor 6 debugs hydraulic rockshaft 2 and steel strand wires 5, and checks whether low area's steel vestibule 6 meets design requirement；
Step 3, after checking that confirmation is errorless, the method that hydraulic rockshaft 2 takes hierarchical loading is preloaded, and hydraulic pressure is utilized
Lifter 2 drives steel strand wires 5 to carry out low area's steel vestibule 6 to promote 11 for the first time, is detached from assembled moulding bed 7, makes basement roof not
Stress is promoted to low 6 designed elevation of area's steel vestibule；
Step 4, after low area's steel vestibule 6 checks that confirmation is errorless, assembled moulding bed 7, profit are set above low area's steel vestibule 6
With tower crane on assembled moulding bed 7 area's steel vestibule 9 in assembly；
Step 5, after checking that confirmation is errorless, step 2 is repeated, the method that hydraulic rockshaft 2 takes hierarchical loading carries out pre-add
It carries, drives steel strand wires 5 that middle area's steel vestibule 9 is carried out second using hydraulic rockshaft 2 and promote 12, be detached from assembled moulding bed 7, promoted
To middle 9 designed elevation of area's steel vestibule；
Step 6, area's steel vestibule 9 and prepackage rod piece 1 in welding, whether area's steel vestibule 9 meets design requirement in inspection, confirms
After errorless, assembled moulding bed 7 is set above middle area's steel vestibule 9, using tower crane on assembled moulding bed 7 assembled high area's steel vestibule 10；
Step 7, after checking that confirmation is errorless, step 2 is repeated, the method that hydraulic rockshaft 2 takes hierarchical loading carries out pre-add
It carries, drives steel strand wires 5 that high area's steel vestibule 10 is carried out third time using hydraulic rockshaft 2 and promote 13, be detached from assembled moulding bed 7, carry
High 10 designed elevation of area's steel vestibule is risen to, high area's steel vestibule 10 and prepackage rod piece 1 are welded；
Step 8, unloading hydraulic rockshaft 2 is fully relaxed to steel strand wires 5, removes measure for improvement, makes the dead weight transfer of steel vestibule
To high building 4, the promotion installment work of low area's steel vestibule 6, middle area's steel vestibule 9, high area's steel vestibule 10 is completed.
Further, it is checked as to low area's steel vestibule 6, middle area's steel vestibule 9, high area's steel vestibule 10 described in step 1~step 7
Carry out the visual examination of carrying out flaw detection and weld seam 11.
Further, the hydraulic rockshaft 2 uses steel strand wires 5 as load-bearing rigging is promoted, and installs steel strand wires from the bottom to top
5,Mounting hanger,Wear earth anchor；The steel strand wires 5 after cutting, polishing equating, are symmetrically set with low 6 both ends of area's steel vestibule respectively on demand
4 suspension centres set are fixedly connected；Tension steel strand 5 makes its uniform stressed, locks earth anchor；Debug the hydraulic synchronizing lifting system
System, checks whether all interim measures of hydraulic synchronizing lifting meet design requirement.
Further, the hydraulic rockshaft 2 is stretched cylinder pressure and is gradually raised, and is followed successively by the 20% of required pressure, and 40%, at all
In the case of all normal, it can continue to be loaded into 60%, 70%, 80%, 90%, 95%, 100%；
Further, the hierarchical loading needs to pay attention to：Each step hierarchical loading finishes, and should all suspend and check that steel vestibule adds
Carry the stability of front and back 4 structure of deformation and high building.
Further, the observing time that 10 minutes are at least reserved between each adjacent load step, until vestibule lift unit
It is detached from assembled moulding bed 7.
Further, in the step 3, when low area's steel vestibule 6 is promoted to away from designed elevation 1000mm, pause is promoted, profit
It is locked with hydraulic rockshaft 2, aerial stop 12 hours or more is made to check comprehensively, checks suspension centre structure, bearing system, promotion emphatically
Equipment, the deformation of truss and weld seam and stressing conditions measure low area's steel vestibule 6 and pre-install each point actual size of 1 interface of rod piece,
Collation process reduces and promotes speed, continues to lift up to absolute altitude；It welds and checks whether low area's steel vestibule 6 meets design requirement；
In the step 5, when area's steel vestibule 9 is promoted to away from designed elevation 1000mm in the middle, pause is promoted, and is carried using hydraulic pressure
It rises device 2 to lock, aerial stop 12 hours or more is made to check comprehensively, checks suspension centre structure, bearing system, lifting means, purlin emphatically
The deformation of frame and weld seam and stressing conditions, each point actual size of area's steel vestibule 9 and prepackage 1 interface of rod piece in measurement, at verification
Reason reduces and promotes speed, continues to lift up to absolute altitude；Whether area's steel vestibule 9 meets design requirement in welding and checking；
In the step 7, when high area's steel vestibule 10 is promoted to away from designed elevation 1000mm, pause is promoted, and utilizes hydraulic pressure
Lifter 2 locks, and aerial stop 12 hours or more is made to check comprehensively, check emphatically suspension centre structure, bearing system, lifting means,
The deformation of truss and weld seam and stressing conditions measure high area's steel vestibule 10 and pre-install each point actual size of 1 interface of rod piece, verification
Processing reduces and promotes speed, continues to lift up to absolute altitude；It welds and checks whether high area's steel vestibule 10 meets design requirement；
So far the lifting construction of low area's steel vestibule 6, middle area's steel vestibule 9 and high area's steel vestibule 10 is completed, and becomes one with high building 4
A entirety.
Further, the step 8 promotes suspension centre and gradually unloads, and unloading classification is carried out by 20%, and knot is observed after unloading 20%
Structure deformation, no abnormal conditions continue unloading 20%, until load all complete by unloading.
Beneficial effects of the present invention are embodied in：
1）Shaped steel, full hall scaffold need not be used to carry out the support that returns back to top, or in basement structure increase reinforced concrete column,
Steel frame beam is to enhance the bearing capacity of basement roof；Vestibule rectangular structure top surface only needs assembled low area's steel vestibule, and assembling duration is short,
It avoids and basement roof is reinforced on a large scale, basement roof is not allowed to be also easy to produce cracking, has saved a large amount of reinforcing
Material, construction time and cost of labor reduce integral construction cost while shortening the construction period；
2）Do not need the promotion of each steel vestibule be all arranged in the high building built up in advance corresponding hydraulic rockshaft and
Platform is promoted, which has already passed through engineering practice, it is only necessary to corresponding liquid be arranged in the high building at high area's steel vestibule absolute altitude
It presses lifter and promotes platform；The installation measure of steel vestibule promotion is greatly saved, reduces spillage of material, saves
The artificial and time；
3）Assembled moulding bed is set on low/medium area's steel vestibule, after assembled medium/high area's steel vestibule and is promoted absolute altitude,
This construction method substantially reduces the vertical-lift distance of super large heavy-duty steel vestibule, has saved energy consumption and time, reduces construction
Cost and installation difficulty, meet national green construction requirement, have in construction quality, construction safety and operation construction period etc.
Profit；
4）The construction of multiple steel vestibules is not universal between two tall buildings, which can be apparent by engineering practice
Construction efficiency is improved, ensures that construction safety, the reduction of the workload amplitude peak of lifting can be that similar two tall buildings are multiple later
Steel vestibule engineering construction is offered reference and is instructed, and has the foreground promoted and applied.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that understand through the implementation of the invention.The main object of the present invention and further advantage can be by specification, power
Specifically noted scheme is realized and is obtained in sharp claim.
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 that step 2 of the present invention promotes schematic diagram for the first time.
Fig. 3 is step 3 schematic diagram of the present invention.
Fig. 4 is second of promotion schematic diagram of step 4 of the present invention.
Fig. 5 is step 5 schematic diagram of the present invention.
Fig. 6 is that step 6 of the present invention promotes schematic diagram for the third time.
Reference numeral：1- pre-installs rod piece, 2- hydraulic rockshafts, 3- and promotes platform, 4- high buildings, 5- steel strand wires, 6-
Area's steel vestibule, the areas 10- high steel vestibule, the promotion of 11- first times, 12- in low area's steel vestibule, 7- assembly moulding bed, 8- truck cranes, 9-
Second of promotion, 13- third times are promoted.
Specific implementation mode
Below in conjunction with the accompanying drawings and the present invention is further described in embodiment：
Multiple steel vestibules between two tall buildings, it is desirable to which assembly is completed again one by one on basement roof so heavy steel construction
The promotion of certain distance is carried out, then carries out necessarily required connection construction with high building, difficulty of construction is big, promotion and installation requirement
Height, it is especially long in the assembled process duration on basement roof top, make basement roof for a long time be in greatly by
Under power state, bearing capacity is much insufficient, easy tos produce cracking, and safety cannot be guaranteed.
The lifting construction method of multiple steel vestibules, multiple steel vestibules are connected between two tall buildings 4 between a kind of high building of the present invention,
Promotion sequence is low area's steel vestibule 6, middle area's steel vestibule 9, high area's steel vestibule 10, is included the following steps：
Step 1, low area's steel vestibule 6, middle area's steel vestibule 9, high area's steel vestibule 10 designed elevation at be respectively mounted prepackage bar
Part 1, the areas Jin Gao steel vestibule 10 pre-install setting on rod piece 1 and promote platform 3, four groups of promotion platforms 3 are arranged altogether, and carry at every group
One hydraulic rockshaft 2 is installed on peaceful 3；Hydraulic synchronizing lifting system equipment is installed, including hydraulic pump source system, hydraulic pressure carry
Rise device 2, sensor etc.；
The quantity of hydraulic rockshaft 2 is extended according to the weight of steel vestibule in step 1.
It is assembled under the projection of 6 predetermined installation site of low area's steel vestibule using truck crane 8, according to the stress of low area's steel vestibule 6
Feature debugs hydraulic rockshaft 2 and steel strand wires 5, and it is as shown in Figure 1 to check whether low area's steel vestibule 6 meets design requirement；
The hydraulic rockshaft 2 uses steel strand wires 5 as load-bearing rigging is promoted, and installs steel strand wires 5 from the bottom to top, installation is hung
Tool, wears earth anchor；The steel strand wires 5 on demand cutting, polishing equating after, respectively with 6 both ends of low area's steel vestibule symmetrically arranged 4 hang
Point is fixedly connected；Tension steel strand 5 makes its uniform stressed, locks earth anchor；The hydraulic synchronizing lifting system is debugged, checks liquid
Whether all interim measures of pressure Synchronous lifting meet design requirement；
Hydraulic rockshaft 2 only needs to be arranged in the high building at high 10 absolute altitude of area's steel vestibule, is greatly saved multiple
The installation measure of steel vestibule promotion；Wherein, the quantity of suspension centre is arranged according to actual conditions such as absolute altitude, steel vestibule weight；
Step 2, after checking that confirmation is errorless, the method that hydraulic rockshaft 2 takes hierarchical loading is preloaded, and hydraulic pressure is utilized
Lifter 2 drives steel strand wires 5 to carry out low area's steel vestibule 6 to promote 11 for the first time, is detached from assembled moulding bed 7, makes basement roof not
It is as shown in Figure 2 to be promoted to 6 designed elevations of low area's steel vestibule for stress；
If low area's steel vestibule 6 has movement when just starting promotion, Suspend Job is needed, keeps hydraulic test system pressure.
Hydraulic synchronizing lifting system equipment is checked comprehensively, in the no problem definitely feelings of the integrally-built stability of confirmation and safety
Under condition, it could start to continue to lift up.Liftoff situation when if there is each point difference should reduce promotion speed at this time, and closely
The liftoff situation of each point is looked into sight, is done " single-point is dynamic " when necessary and is promoted to ensure the levelness of low area's steel vestibule 6.It is promoted to and is marked away from design
When high 1000mm, pause is promoted, and is locked using hydraulic rockshaft 2, and aerial stop 12 hours or more is made to check comprehensively, checks emphatically
Suspension centre structure, bearing system, lifting means, the deformation of truss and weld seam and stressing conditions etc., measure low area's steel vestibule 6 and prepackage
The each point actual size of 1 interface of rod piece, collation process reduce and promote speed, continue to lift up to absolute altitude.Weld low area's steel vestibule 6
With prepackage rod piece 1, check whether low area's steel vestibule 6 meets design requirement, so far the lifting construction of low area's steel vestibule 6 is completed, with
Two tall buildings 4 become a complete entirety.
It must be noted that in construction：During hierarchical loading, each step hierarchical loading finishes, and should all suspend and check, such as
Situations such as stability of the load such as low area's steel vestibule 6 front and back deformation and main building structure.The case where all going well
Under, continue next step hierarchical loading；Wherein, the hydraulic rockshaft 2 is stretched cylinder pressure and is gradually raised, and is followed successively by required pressure
20%, 40%, in the case where Everything is fine, can continue to be loaded into 60%, 70%, 80%, 90%, 95%, 100%, it is adjacent every time to add
At least reserved 10 minutes observing times between load step, until vestibule lift unit is detached from assembled moulding bed 7.
Step 3, after low area's steel vestibule 6 checks that confirmation is errorless, assembled moulding bed 7 is set above low area's steel vestibule 6, utilizes tower
Area's steel vestibule 9 in assembly is hung on assembled moulding bed 7, as shown in Figure 3.
Step 4, shown in Fig. 4, after checking that confirmation is errorless, the method that hydraulic rockshaft 2 takes hierarchical loading is preloaded,
It drives steel strand wires 5 that middle area's steel vestibule 9 is carried out second using hydraulic rockshaft 2 to promote 12, be detached from assembled moulding bed 7, be promoted to
Middle 9 designed elevation of area's steel vestibule.Wherein, the method for hierarchical loading, the points for attention of lifting process are identical as step 2.
Step 5, area's steel vestibule 9 and prepackage rod piece in welding, whether area's steel vestibule 9 meets design requirement in inspection, confirms
After errorless, assembled moulding bed 7 is set above middle area's steel vestibule 9, using tower crane on assembled moulding bed 7 assembled high area's steel vestibule 10.
Wherein, the method for hierarchical loading, the points for attention of lifting process are identical as step 2.
Step 6, after checking that confirmation is errorless, the method that hydraulic rockshaft 2 takes hierarchical loading is preloaded, and hydraulic pressure is utilized
Lifter 2 drives steel strand wires 5 that high area's steel vestibule 10 is carried out third time and promotes 13, is detached from assembled moulding bed 7, promotes supreme area's steel and connects
10 designed elevation of corridor.Wherein, the method for hierarchical loading, the points for attention of lifting process are identical as step 2.
After installation is complete, each suspension centre synchronization load shedding of hydraulic synchronizing lifting system equipment is fully relaxed to steel strand wires 5, makes
Steel vestibule dead weight is transferred on high building 4, remove measure for improvement, complete Gao Qu, middle area, low area's steel vestibule promotion installment work such as
Shown in Fig. 6.
To sum up, the lifting construction method of multiple steel vestibules between a kind of high building that the present invention is announced,
1）Whole process only needs the corresponding hydraulic rockshaft of interior setting at high area's steel vestibule absolute altitude and promotion platform
?；The installation measure of steel vestibule promotion is greatly saved, reduces spillage of material, has saved the artificial and time；
2）Assembled moulding bed is set on low/medium area's steel vestibule, after assembled medium/high area's steel vestibule and is promoted absolute altitude,
This construction method substantially reduces the vertical-lift distance of super large heavy-duty steel vestibule, has saved energy consumption and time, reduces construction
Cost and installation difficulty, meet national green construction requirement, have in construction quality, construction safety and operation construction period etc.
Profit；
3）Shaped steel, full hall scaffold need not be used to carry out the support that returns back to top, or in basement structure increase reinforced concrete column,
Steel frame beam is to enhance the bearing capacity of basement roof；Vestibule rectangular structure top surface only needs assembled low area's steel vestibule, and assembling duration is short,
It avoids and basement roof is reinforced on a large scale, basement roof is not allowed to be also easy to produce cracking, has saved a large amount of reinforcing
Material, construction time and cost of labor reduce integral construction cost while shortening the construction period；
4）The construction of multiple steel vestibules is not universal between two tall buildings, which can be apparent by engineering practice
Construction efficiency is improved, ensures that construction safety, the reduction of the workload amplitude peak of lifting can be that similar two tall buildings are multiple later
Steel vestibule engineering construction is offered reference and is instructed, and has the foreground promoted and applied.
In the lifting process of construction cell, lifting region rod piece is needed to carry out temperature pier to meet whole promotion need
It asks, offsets the deformation that weight stress generates in lifting, form it into stable entirety to be promoted, using the prior art, herein
It repeats no more.Installation, debugging, use, the unloading of hydraulic synchronizing lifting system equipment use the prior art, and details are not described herein.
The foregoing is merely the preferable specific implementation modes of the present invention, but scope of protection of the present invention is not limited thereto,
The change or replacement that any one skilled in the art is expected in the technical scope disclosed by the present invention should all be contained
Lid is within protection scope of the present invention.
Claims (8)
1. a kind of lifting construction method of multiple steel vestibules between high building, which is characterized in that promotion sequence is low area's steel vestibule（6）,
Middle area's steel vestibule（9）, high area's steel vestibule（10）, include the following steps：
Step 1, in low area's steel vestibule（6）, middle area's steel vestibule（9）, high area's steel vestibule（10）Designed elevation at be respectively mounted prepackage
Rod piece（1）, in high area's steel vestibule（10）Pre-install rod piece（1）Upper setting promotes platform（3）, and in every group of promotion platform（3）On
Hydraulic rockshaft is installed（2）；
Step 2, using truck crane（8）In low area's steel vestibule（6）The predetermined lower assembly of installation site projection, connects according to low area's steel
Corridor（6）Loading characteristic, debug hydraulic rockshaft（2）And steel strand wires（5）, and check low area's steel vestibule（6）Whether satisfaction designs
It is required that；
Step 3, after checking that confirmation is errorless, hydraulic rockshaft（2）The method for taking hierarchical loading is preloaded, and is carried using hydraulic pressure
Rise device（2）Drive steel strand wires（5）By low area's steel vestibule（6）Carry out first time promotion（11）, it is detached from assembled moulding bed（7）, make underground
Ceiling plate does not stress, and is promoted to low area's steel vestibule（6）Designed elevation；
Step 4, low area's steel vestibule（6）After checking that confirmation is errorless, in low area's steel vestibule（6）The assembled moulding bed of top setting（7）,
Using tower crane in assembled moulding bed（7）Area's steel vestibule in upper assembly（9）；
Step 5, after checking that confirmation is errorless, hydraulic rockshaft（2）The method for taking hierarchical loading is preloaded, and is carried using hydraulic pressure
Rise device（2）Drive steel strand wires（5）By middle area's steel vestibule（9）Second is carried out to be promoted（12）, it is detached from assembled moulding bed（7）, it is promoted to
Middle area's steel vestibule（9）Designed elevation；
Step 6, steel vestibule in area's in welding（9）With prepackage rod piece（1）, steel vestibule in area's in inspection（9）Whether design requirement is met, really
Recognize it is errorless after, in middle area's steel vestibule（9）The assembled moulding bed of top setting（7）, using tower crane in assembled moulding bed（7）The upper high area's steel of assembly
Vestibule（10）；
Step 7, after checking that confirmation is errorless, hydraulic rockshaft（2）The method for taking hierarchical loading is preloaded, and is carried using hydraulic pressure
Rise device（2）Drive steel strand wires（5）By high area's steel vestibule（10）Carry out third time promotion（13）, it is detached from assembled moulding bed（7）, it is promoted to
High area's steel vestibule（10）Designed elevation welds high area's steel vestibule（10）With prepackage rod piece（1）；
Step 8, hydraulic rockshaft is unloaded（2）To steel strand wires（5）It is fully relaxed, measure for improvement is removed, the dead weight transfer of steel vestibule is made
To high building（4）On, complete low area's steel vestibule（6）, middle area's steel vestibule（9）, high area's steel vestibule（10）Promotion installment work.
2. lifting construction method as described in claim 1, which is characterized in that checked as to low area described in step 1~step 7
Steel vestibule（6）, middle area's steel vestibule（9）, high area's steel vestibule（10）Carry out carrying out flaw detection and weld seam（11）Visual examination.
3. lifting construction method as described in claim 1, which is characterized in that the hydraulic rockshaft（2）Use steel strand wires（5）
As load-bearing rigging is promoted, steel strand wires are installed from the bottom to top（5）, mounting hanger wears earth anchor；Tension steel strand（5）, make it uniformly
Stress locks earth anchor.
4. lifting construction method as described in claim 1, which is characterized in that the hydraulic rockshaft（2）It is gradual to stretch cylinder pressure
Up-regulation, is followed successively by the 20% of required pressure, and 40%, in the case where Everything is fine, can continue to be loaded into 60%, 70%, 80%,
90%, 95%, 100%.
5. lifting construction method as described in claim 1, which is characterized in that the hierarchical loading needs to pay attention to：Each step point
Grade loaded should all suspend and check the load of steel vestibule front and back deformation and high building（4）The stability of structure.
6. lifting construction method as described in claim 1, which is characterized in that at least 10 points reserved between adjacent load step
The observing time of clock, until steel vestibule lift unit is detached from assembled moulding bed（7）.
7. lifting construction method as described in claim 1, which is characterized in that in the step 3, when low area's steel vestibule（6）It carries
When rising to away from designed elevation 1000mm, pause is promoted, and utilizes hydraulic rockshaft（2）Locking, it is aerial stop 12 hours or more make it is complete
Face checks, check emphatically suspension centre structure, bearing system, lifting means, truss and weld seam deformation and stressing conditions, measure low area
Steel vestibule（6）With prepackage rod piece（1）The each point actual size of interface, collation process reduce and promote speed, continue to lift up to mark
It is high；It welds and checks low area's steel vestibule（6）Whether design requirement is met；
In the step 5, area's steel vestibule in the middle（9）When being promoted to away from designed elevation 1000mm, pause is promoted, and utilizes hydraulic pressure lift
Device（2）Locking, aerial stop 12 hours or more make to check comprehensively, checks suspension centre structure, bearing system, lifting means, purlin emphatically
The deformation of frame and weld seam and stressing conditions, steel vestibule in area's in measurement（9）With prepackage rod piece（1）The each point actual size of interface, core
To processing, reduces and promote speed, continue to lift up to absolute altitude；Steel vestibule in area's in welding and checking（9）Whether design requirement is met；
In the step 7, when high area's steel vestibule（10）When being promoted to away from designed elevation 1000mm, pause is promoted, and is carried using hydraulic pressure
Rise device（2）Locking, aerial stop 12 hours or more make to check comprehensively, check emphatically suspension centre structure, bearing system, lifting means,
The deformation of truss and weld seam and stressing conditions measure high area's steel vestibule（10）With prepackage rod piece（1）The each point actual size of interface,
Collation process reduces and promotes speed, continues to lift up to absolute altitude；It welds and checks high area's steel vestibule（10）Whether satisfaction design is wanted
It asks；
So far low area's steel vestibule（6）, middle area's steel vestibule（9）With high area's steel vestibule（10）Lifting construction complete, with high building（4）At
For an entirety.
8. lifting construction method as described in claim 1, which is characterized in that the step 8 promotes suspension centre and gradually unloads, and unloads
Classification is carried out by 20%, and observation structure deformation after unloading 20%, no abnormal conditions continue unloading 20%, until load is complete
Portion's unloading is completed.
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| CN109083268A (en) * | 2018-10-29 | 2018-12-25 | 中国冶集团有限公司 | Narrow more barrier zone bilayer differing tilt angles vestibules once lift installation method |
| CN109881890B (en) * | 2019-02-21 | 2021-07-23 | 深圳市建筑设计研究总院有限公司 | Multi-corridor construction method for super high-rise building |
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| CN112049439B (en) * | 2020-10-14 | 2021-11-02 | 中冶建工集团重庆钢结构有限公司 | Method for integrally lifting and mounting steel platform in limited space |
| 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 |
| CN115262991A (en) * | 2022-06-15 | 2022-11-01 | 中国五冶集团有限公司 | Corridor lifting and folding structure and construction method thereof |
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