CN107489199A - Space Reticulated dome expands lifting construction method by ring - Google Patents
Space Reticulated dome expands lifting construction method by ring Download PDFInfo
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- CN107489199A CN107489199A CN201710771793.0A CN201710771793A CN107489199A CN 107489199 A CN107489199 A CN 107489199A CN 201710771793 A CN201710771793 A CN 201710771793A CN 107489199 A CN107489199 A CN 107489199A
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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
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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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
- E04B1/32—Arched structures; Vaulted structures; Folded structures
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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
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention proposes space Reticulated dome and expands lifting construction method by ring, solves the problems, such as that existing space Reticulated dome constructional difficulties and installation accuracy are low.The present invention construction procedure be：Preparation of construction, installation stage cavity closing rack, assembled center rack in situ, first group of jack-up system of setting, center rack examination jacking, rack are formally jacked and spliced, set second group of jack-up system, further jacking and splice, jack to absolute altitude, rack unloading, rack and check and accept, space Reticulated dome of the present invention expands lifting construction method by ring and solves the problems, such as that existing space Reticulated dome constructional difficulties and installation accuracy are low, has very high application and popularization value.
Description
Technical field
The present invention relates to a kind of Construction of The Grids method, particularly relates to a kind of space Reticulated dome and expands lifting construction side by ring
Method.
Background technology
Close it can not be used for the space Reticulated dome engineering Large-scale Hoisting equipment positioned at monolithic architecture group centre position,
Rational plant equipment is selected to carry out the difficult point that installation is such engineering according to field condition, space Reticulated dome needs to be in ball
Shape, and lines need smoothness, therefore ensure that steel construction appearance curve is also smoothly one of CCP of such engineering, and
And the high-altitude assembled difficulty in situ of rack is big, splicing accuracy requires high, therefore it is most important to carry out process measurement control.Again because with
Civil engineering cross-operation, when full hall scaffold operation steel platform can not be set up below the Reticulated dome of space, operating condition is poor, welding
Quality and security control difficulty is larger；In addition, most of component is transported in the form of loose mail to scene, Site Welding workload
Greatly, and poor welding quality.
The content of the invention
The present invention proposes that a kind of space Reticulated dome expands lifting construction method by ring, solves existing space Reticulated dome
The problem of constructional difficulties and low installation accuracy.
The technical proposal of the invention is realized in this way：Space Reticulated dome by ring expand lifting construction method, including with
Lower step：
A, preparation of construction：
1）Handing-over is carried out to orientation axis and tests line, and orientation axis is marked and protected, spirit level is disposed proximally
On non-damageable building, closure measurement is carried out to bench mark using spirit level, measures the axial location and mark of support node
Height, measurement main grid structure orientation axis and positioning absolute altitude；
2）The steel member of space Reticulated dome is transported to construction site in factory process, then classification, and to weldquality, structure
Part outward appearance and size are inspected for acceptance；
3）Assembled place ground is handled using replacement cushion method, natural soil layer is dug up to the soil layer of certain depth, it is smooth
Sand-gravel cushion is laid after compacting, sand-gravel cushion is rolled or compacting is handled, lay plain concrete in the top surface of sand-gravel cushion
Layer；
4）Jacking support frame is prepared, jacking support frame is made up of the first standard knot and jacking support base, is set in jacking support base
There is hydraulic jack, standard knot includes steel pipe post 4,8, horizontal connection bar, diagonal brace 6, the both ends connection of steel pipe post
Horizontal connection bar, horizontal connection bar form the support frame of cuboid with steel pipe post, diagonal brace are connected between adjacent steel pipe post；
5）Floor is prepared to return back to top frame：The floor frame that returns back to top is made up of the second standard knot, second standard knot with step a.4）Middle institute
The first standard knot for stating jacking support frame is identical；
Closing rack in stage cavity is installed b,：
It is specially to make just that assembled steel platform is set up in stage sedimentation cavity as stage cavity closing rack, assembled steel platform
The structure type of the support rack of quadrangular pyramid composition, support rack upper berth set thick checkered steel plate, set on thick checkered steel plate interim
Support；
C, assembled center rack in situ：
The center rack and the second hoop net frame of described spelling temporary support top assembled space Reticulated dome in situ in stepb,
Each lower edge solder sphere of center rack and the second hoop net frame is positioned using moulding bed, is installed when winding up solder sphere using local
The scaffold set up is positioned, welded；
First group of jack-up system is set d,：
First group of jack-up system includes first group of jacking support frame and first group of floor returns back to top frame, first group of jacking support frame are set
In stepb above described Elements of Space Grid Truss, first group of floor return back to top frame ride upon below floor and with first group of jacking support frame
Correspond to up and down, the jacking fulcrum bearing of first group of jacking support frame is connected with the lower edge frame of the center rack in step c；
E, center rack examination jacking：
1）After jacking support frame described in step a is fixedly connected with the center rack above the scaffold described in step c,
The connection of dismounting center rack and temporary support, check hydraulic jack, jacking support frame, synchronous jacking system, detecting system
Operating mode；
2）First group of jacking support frame jacking center rack described in rate-determining steps d, when center net rack support rises 50mm,
Hovering 30 minutes, checks that the scope of examination includes to center rack：The whether serious deflection of first group of jacking support frame, rack
Whether rod member whether there is buckling phenomenon, rack lower edge ball leaves ground contour, after confirmation is all gone well, further jacks, every time
Top lifting height is 500mm, until jacking to precalculated position；
F, rack is formally jacked and spliced：
1）After the rack examination jacking of center, first group of jacking support frame described in rate-determining steps d is formally jacked, confirmed top
After rising to predetermined altitude, the data such as detection each point stress, structure gross weight, each point top lifting height, analysis and regulation, Ran Houzhong are carried out
Heart rack is stagnated more than 2 hours in the air, checks the situation of whole jack-up system；
2）Center rack often jacks the thickness of a rack, that is, splices next cycle space Reticulated dome, checks rack integral level
Degree and solder sphere space coordinates, four groups of installation personnels be symmetrically installed jacking support frame standard knot, assembly finish and through detect a flaw it is qualified
Afterwards, continue to jack, install from inside to outside, the horse of space sphere bottom is welded after the completion of the 3rd hoop net frame and the 4th hoop net frame assembly
Road connecting plate, and installation center packway；
Second group of jack-up system is set g,：
Second group of top system includes second group of jacking support frame and second group of floor returns back to top frame, second group of jacking support frame are arranged on
Support above rack, second group of floor return back to top frame ride upon it is below floor and corresponding up and down with second group of jacking support frame, second
The jacking fulcrum bearing of group jacking support frame is connected with the lower edge frame of the 3rd hoop net frame and the 4th hoop net frame；
H, further jacking and splicing：
The first lap rack of mounted space Reticulated dome is jacked to the 4th hoop net frame, treats that second group of jack-up system jacks one
After standard knot height, the first group of floor that can remove first group of jack-up system returns back to top frame and first group of jacking support frame, meanwhile,
After often jacking a standard knot height, check that rack integral level degree and solder sphere space coordinates, four groups of installation personnels are symmetrically pacified
Dress jacking support frame standard knot, often jack a standard knot and highly splice a hoop net frame；
I, jack to absolute altitude：
Circulation step h exceedes design attitude 100mm until jacking to space Reticulated dome, is accurately positioned using total powerstation,
Rack whole height deviation is ensured within 15mm, and being then symmetrically installed method using high-altitude installs remaining rod member, support ball installation；
J, rack unloads：
Last lap rack installation and weld seam is after defect detecting test is qualified, hydraulic synchronous jacking system equipment synchronously fall,
Make grid structure entirety dropping place to pre-embedded steel slab, complete rack unloaded operation；
K, rack is checked and accepted：
After completing rack unloading, jack-up system and assembled steel platform, the overall amount of deflection of measurement space Reticulated dome and installation are removed
Deviation, carry out branch's examination.
Further, the step is a.3）The depth that middle natural soil layer is dug up is 300mm, and sandstone pad is laid after smooth compacting
Thickness degree is 200mm, sand-gravel cushion rolled or compacting processing after compacting factor reach 0.95, in the top surface of sand-gravel cushion
The plain concrete layer thickness of laying is 100mm, and the strength grade of the plain concrete layer is C20.
Further, the step is a.4）Described in the first standard knot length and width be 1.2m, be highly 1m, the steel
Tube column is that sectional dimension is the mm of 140 mm * 4, and the sectional dimension of horizontal connection bar is the mm of 60 mm * 3.5, the chi of diagonal brace
Very little is the mm of 48 mm * 3.5, and the steel pipe post, jacking support base, horizontal connection bar, diagonal brace are Q235B materials.
Further, the step is a.5）In the second standard knot length and width is 1.2m, is highly 1m, the steel pipe is stood
Post is that sectional dimension is the mm of 140 mm * 4, and the sectional dimension of horizontal connection bar is the mm of 60 mm * 3.5, and the size of diagonal brace is
The mm of 48 mm * 3.5, the steel pipe post, jacking support base, horizontal connection bar, diagonal brace are Q235B materials.
Further, the tie point between the steel pipe post, jacking support base, horizontal connection bar and diagonal brace passes through section
Penalty kick is welded and fixed.
Space Reticulated dome of the present invention expands lifting construction method by ring, and construction procedure is clear, constructing operation is simple, ensures
The flatness of space Reticulated dome curve, the problem of can not setting up full hall scaffold below the Reticulated dome of space is avoided,
The component of space Reticulated dome is transported to construction site after the completion of factory process, both ensure that the construction order of construction site,
The quality of workpiece welding is in turn ensure that, space Reticulated dome expands installation by ring and ensure that the stability of construction and connection are reliable
Property, the mode stepped up ensure that the installation accuracy of construction, and space Reticulated dome of the present invention expands lifting construction method by ring
Solve the problems, such as that existing space Reticulated dome constructional difficulties and installation accuracy are low, there is application and popularization value high very well.
Embodiment
Expand lifting construction method by ring the embodiments of the invention provide space Reticulated dome, comprise the following steps：
A, preparation of construction：
1）Handing-over is carried out to orientation axis and tests line, and orientation axis is marked and protected, spirit level is disposed proximally
On non-damageable building, closure measurement is carried out to bench mark using spirit level, measures the axial location and mark of support node
Height, measurement main grid structure orientation axis and positioning absolute altitude；
2）The steel member of space Reticulated dome is transported to construction site in factory process, then classification, and to weldquality, structure
Part outward appearance and size are inspected for acceptance；
3）Assembled place ground is handled using replacement cushion method, natural soil layer is dug up into the soil layer that depth is 300mm, put down
Laying depth is 200mm sand-gravel cushions after whole compacting, and sand-gravel cushion is rolled or compacting is handled, reaches compacting factor requirement
It is that 100mm strength grades are C20 plain concrete layers in the top surface laying depth of sand-gravel cushion to 0.95；
4）Jacking support frame is prepared, jacking support frame is made up of the first standard knot and jacking support base, is set in jacking support base
There is hydraulic jack, standard knot includes steel pipe post 4,8, horizontal connection bar, diagonal brace 6, the both ends connection of steel pipe post
Horizontal connection bar, horizontal connection bar form the support frame of cuboid with steel pipe post, diagonal brace are connected between adjacent steel pipe post；
First standard knot is grown and width is 1.2m, is highly 1m, and the steel pipe post is that sectional dimension is the mm of 140 mm * 4, horizontal
The sectional dimension of contact bar is the mm of 60 mm * 3.5, and the size of diagonal brace is the mm of 48 mm * 3.5, the steel pipe post, jacking
Support base, horizontal connection bar, diagonal brace are Q235B materials；The steel pipe post, jacking support base, horizontal connection bar and diagonal brace
Between tie point be welded and fixed by bolted node sphere；
5）Floor is prepared to return back to top frame：The floor frame that returns back to top is made up of the second standard knot, second standard knot with step a.4）Middle institute
The first standard knot for stating jacking support frame is identical；
Closing rack in stage cavity is installed b,：
It is specially to make just that assembled steel platform is set up in stage sedimentation cavity as stage cavity closing rack, assembled steel platform
The structure type of the support rack of quadrangular pyramid composition, support rack upper berth set thick checkered steel plate, set on thick checkered steel plate interim
Support；
C, assembled center rack in situ：
The center rack and the second hoop net frame of described spelling temporary support top assembled space Reticulated dome in situ in stepb,
Each lower edge solder sphere of center rack and the second hoop net frame is positioned using moulding bed, is installed when winding up solder sphere using local
The scaffold set up is positioned, welded；
First group of jack-up system is set d,：
First group of jack-up system includes first group of jacking support frame and first group of floor returns back to top frame, first group of jacking support frame are set
In stepb above described Elements of Space Grid Truss, first group of floor return back to top frame ride upon below floor and with first group of jacking support frame
Correspond to up and down, the jacking fulcrum bearing of first group of jacking support frame is connected with the lower edge frame of the center rack in step c；
E, center rack examination jacking：
1）After jacking support frame described in step a is fixedly connected with the center rack above the scaffold described in step c,
The connection of dismounting center rack and temporary support, check hydraulic jack, jacking support frame, synchronous jacking system, detecting system
Operating mode；
2）First group of jacking support frame jacking center rack described in rate-determining steps d, when center net rack support rises 50mm,
Hovering 30 minutes, checks that the scope of examination includes to center rack：The whether serious deflection of first group of jacking support frame, rack
Whether rod member whether there is buckling phenomenon, rack lower edge ball leaves ground contour, after confirmation is all gone well, further jacks, every time
Top lifting height is 500mm, until jacking to precalculated position；
F, rack is formally jacked and spliced：
1）After the rack examination jacking of center, first group of jacking support frame described in rate-determining steps d is formally jacked, on jacking frame
Portion is together with the bolted node sphere colligation of rack, and lower clan is on jacking support base, and hydraulic jack is with jacking support base with 4
M20 bolt is fixedly connected, and hydraulic jack elevating capacity is 50 tons, is highly 1.6m, stroke 1.25m；Hydraulic pressure during jacking
Jack is placed on the bottom of the first standard knot, starts to jack on inspection, after debugging, jacking to lifting height stops after being more than 1.0 meters
Only jack, then the first standard knot is controlled hydraulic jack to fall after rise, make jacking support frame from bottom mounted in jacking on support frame
Fall on jacking support base, hydraulic jack continues to fall and remove hydraulic jack after rise, and hydraulic jack then is changed into inverse
On first standard knot, continue subsequent cycle, and so on, 1.01 meters of jacking, is jacked to design until rack every time
Absolute altitude；After confirmed jacking to predetermined altitude, the data such as detection each point stress, structure gross weight, each point top lifting height, divided
Analysis adjustment, then center rack is stagnated more than 2 hours in the air, checks the situation of whole jack-up system；
2）Center rack often jacks the thickness of a rack, that is, splices next cycle space Reticulated dome, checks rack integral level
Degree and solder sphere space coordinates, four groups of installation personnels be symmetrically installed jacking support frame standard knot, assembly finish and through detect a flaw it is qualified
Afterwards, continue to jack, install from inside to outside, the horse of space sphere bottom is welded after the completion of the 3rd hoop net frame and the 4th hoop net frame assembly
Road connecting plate, and installation center packway；
Second group of jack-up system is set g,：
Second group of top system includes second group of jacking support frame and second group of floor returns back to top frame, second group of jacking support frame are arranged on
Support above rack, second group of floor return back to top frame ride upon it is below floor and corresponding up and down with second group of jacking support frame, second
The jacking fulcrum bearing of group jacking support frame is connected with the lower edge frame of the 3rd hoop net frame and the 4th hoop net frame；
H, further jacking and splicing：
The first lap rack of mounted space Reticulated dome is jacked to the 4th hoop net frame, treats that second group of jack-up system jacks one
After standard knot height, the first group of floor that can remove first group of jack-up system returns back to top frame and first group of jacking support frame, meanwhile,
After often jacking a standard knot height, check that rack integral level degree and solder sphere space coordinates, four groups of installation personnels are symmetrically pacified
Dress jacking support frame standard knot, often jack a standard knot and highly splice a hoop net frame；
I, jack to absolute altitude：
Circulation step h exceedes design attitude 100mm until jacking to space Reticulated dome, is accurately positioned using total powerstation,
Rack whole height deviation is ensured within 15mm, and being then symmetrically installed method using high-altitude installs remaining rod member, support ball installation；
J, rack unloads：
Last lap rack installation and weld seam is after defect detecting test is qualified, hydraulic synchronous jacking system equipment synchronously fall,
Make grid structure entirety dropping place to pre-embedded steel slab, complete rack unloaded operation；
K, rack is checked and accepted：
After completing rack unloading, jack-up system and assembled steel platform, the overall amount of deflection of measurement space Reticulated dome and installation are removed
Deviation, carry out branch's examination.
Further, the step is a.3）The depth that middle natural soil layer is dug up is 300mm, and sandstone pad is laid after smooth compacting
Thickness degree is 200mm, sand-gravel cushion rolled or compacting processing after compacting factor reach 0.95, in the top surface of sand-gravel cushion
The plain concrete layer thickness of laying is 100mm, and the strength grade of the plain concrete layer is C20.
Further, the step is a.4）Described in the first standard knot length and width be 1.2m, be highly 1m, the steel
Tube column is that sectional dimension is the mm of 140 mm * 4, and the sectional dimension of horizontal connection bar is the mm of 60 mm * 3.5, the chi of diagonal brace
Very little is the mm of 48 mm * 3.5, and the steel pipe post, jacking support base, horizontal connection bar, diagonal brace are Q235B materials.
Further, the step is a.5）In the second standard knot length and width is 1.2m, is highly 1m, the steel pipe is stood
Post is that sectional dimension is 140mm*4 mm, and the sectional dimension of horizontal connection bar is the mm of 60 mm * 3.5, and the size of diagonal brace is
The mm of 48 mm * 3.5, the steel pipe post, jacking support base, horizontal connection bar, diagonal brace are Q235B materials.
Further, the tie point between the steel pipe post, jacking support base, horizontal connection bar and diagonal brace passes through section
Penalty kick is welded and fixed.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (5)
1. space Reticulated dome expands lifting construction method by ring, it is characterised in that：Comprise the following steps：
A, preparation of construction：
1）Handing-over is carried out to orientation axis and tests line, and orientation axis is marked and protected, spirit level is disposed proximally
On non-damageable building, closure measurement is carried out to bench mark using spirit level, measures the axial location and mark of support node
Height, measurement main grid structure orientation axis and positioning absolute altitude；
2）The steel member of space Reticulated dome is transported to construction site in factory process, then classification, and to weldquality, structure
Part outward appearance and size are inspected for acceptance；
3）Assembled place ground is handled using replacement cushion method, natural soil layer is dug up to the soil layer of certain depth, it is smooth
Sand-gravel cushion is laid after compacting, sand-gravel cushion is rolled or compacting is handled, lay plain concrete in the top surface of sand-gravel cushion
Layer；
4）Jacking support frame is prepared, jacking support frame is made up of the first standard knot and jacking support base, is set in jacking support base
There is hydraulic jack, standard knot includes steel pipe post 4,8, horizontal connection bar, diagonal brace 6, the both ends connection of steel pipe post
Horizontal connection bar, horizontal connection bar form the support frame of cuboid with steel pipe post, diagonal brace are connected between adjacent steel pipe post；
5）Floor is prepared to return back to top frame：The floor frame that returns back to top is made up of the second standard knot, second standard knot with step a.4）Middle institute
The first standard knot for stating jacking support frame is identical；
Closing rack in stage cavity is installed b,：
It is specially to make just that assembled steel platform is set up in stage sedimentation cavity as stage cavity closing rack, assembled steel platform
The structure type of the support rack of quadrangular pyramid composition, support rack upper berth set thick checkered steel plate, set on thick checkered steel plate interim
Support；
C, assembled center rack in situ：
The center rack and the second hoop net frame of described spelling temporary support top assembled space Reticulated dome in situ in stepb,
Each lower edge solder sphere of center rack and the second hoop net frame is positioned using moulding bed, is installed when winding up solder sphere using local
The scaffold set up is positioned, welded；
First group of jack-up system is set d,：
First group of jack-up system includes first group of jacking support frame and first group of floor returns back to top frame, first group of jacking support frame are set
In stepb above described Elements of Space Grid Truss, first group of floor return back to top frame ride upon below floor and with first group of jacking support frame
Correspond to up and down, the jacking fulcrum bearing of first group of jacking support frame is connected with the lower edge frame of the center rack in step c；
E, center rack examination jacking：
1）After jacking support frame described in step a is fixedly connected with the center rack above the scaffold described in step c,
The connection of dismounting center rack and temporary support, check hydraulic jack, jacking support frame, synchronous jacking system, detecting system
Operating mode；
2）First group of jacking support frame jacking center rack described in rate-determining steps d, when center net rack support rises 50mm,
Hovering 30 minutes, checks that the scope of examination includes to center rack：The whether serious deflection of first group of jacking support frame, rack
Whether rod member whether there is buckling phenomenon, rack lower edge ball leaves ground contour, after confirmation is all gone well, further jacks, every time
Top lifting height is 500mm, until jacking to precalculated position；
F, rack is formally jacked and spliced：
1）After the rack examination jacking of center, first group of jacking support frame described in rate-determining steps d is formally jacked, confirmed top
After rising to predetermined altitude, the data such as detection each point stress, structure gross weight, each point top lifting height, analysis and regulation, Ran Houzhong are carried out
Heart rack is stagnated more than 2 hours in the air, checks the situation of whole jack-up system；
2）Center rack often jacks the thickness of a rack, that is, splices next cycle space Reticulated dome, checks rack integral level
Degree and solder sphere space coordinates, four groups of installation personnels be symmetrically installed jacking support frame standard knot, assembly finish and through detect a flaw it is qualified
Afterwards, continue to jack, install from inside to outside, the horse of space sphere bottom is welded after the completion of the 3rd hoop net frame and the 4th hoop net frame assembly
Road connecting plate, and installation center packway；
Second group of jack-up system is set g,：
Second group of top system includes second group of jacking support frame and second group of floor returns back to top frame, second group of jacking support frame are arranged on
Support above rack, second group of floor return back to top frame ride upon it is below floor and corresponding up and down with second group of jacking support frame, second
The jacking fulcrum bearing of group jacking support frame is connected with the lower edge frame of the 3rd hoop net frame and the 4th hoop net frame；
H, further jacking and splicing：
The first lap rack of mounted space Reticulated dome is jacked to the 4th hoop net frame, treats that second group of jack-up system jacks one
After standard knot height, the first group of floor that can remove first group of jack-up system returns back to top frame and first group of jacking support frame, meanwhile,
After often jacking a standard knot height, check that rack integral level degree and solder sphere space coordinates, four groups of installation personnels are symmetrically pacified
Dress jacking support frame standard knot, often jack a standard knot and highly splice a hoop net frame；
I, jack to absolute altitude：
Circulation step h exceedes design attitude 100mm until jacking to space Reticulated dome, is accurately positioned using total powerstation,
Rack whole height deviation is ensured within 15mm, and being then symmetrically installed method using high-altitude installs remaining rod member, support ball installation；
J, rack unloads：
Last lap rack installation and weld seam is after defect detecting test is qualified, hydraulic synchronous jacking system equipment synchronously fall,
Make grid structure entirety dropping place to pre-embedded steel slab, complete rack unloaded operation；
K, rack is checked and accepted：
After completing rack unloading, jack-up system and assembled steel platform, the overall amount of deflection of measurement space Reticulated dome and installation are removed
Deviation, carry out branch's examination.
2. space Reticulated dome expands lifting construction method by ring according to claim 1, it is characterised in that：The step
a.3）The depth that middle natural soil layer is dug up is 300mm, and it is 200mm that sand-gravel cushion thickness is laid after smooth compacting, and sand-gravel cushion enters
Row roll or compacting processing after compacting factor reach 0.95, sand-gravel cushion top surface lay plain concrete layer thickness be
100mm, the strength grade of the plain concrete layer is C20.
3. space Reticulated dome expands lifting construction method by ring according to claim 1, it is characterised in that：The step
a.4）Described in the first standard knot length and width is 1.2m, is highly 1m, the steel pipe post is that sectional dimension is 140mm*
4mm, the sectional dimension of horizontal connection bar are 60mm*3.5mm, and the size of diagonal brace is 48mm*3.5mm, the steel pipe post, top
It is Q235B materials to rise support base, horizontal connection bar, diagonal brace.
4. space Reticulated dome expands lifting construction method by ring according to claim 1, it is characterised in that：The step
a.5）In the second standard knot length and width is 1.2m, is highly 1m, the steel pipe post is that sectional dimension is 140mm*4mm,
The sectional dimension of horizontal connection bar is 60mm*3.5mm, and the size of diagonal brace is 48mm*3.5mm, the steel pipe post, jacks branch
It is Q235B materials to support seat, horizontal connection bar, diagonal brace.
5. space Reticulated dome expands lifting construction method by ring according to claim 1, it is characterised in that：The steel pipe is stood
Tie point between post, jacking support base, horizontal connection bar and diagonal brace is welded and fixed by bolted node sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771793.0A CN107489199B (en) | 2017-08-31 | 2017-08-31 | Space Reticulated dome expands jack-up construction method by ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771793.0A CN107489199B (en) | 2017-08-31 | 2017-08-31 | Space Reticulated dome expands jack-up construction method by ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107489199A true CN107489199A (en) | 2017-12-19 |
| CN107489199B CN107489199B (en) | 2019-05-17 |
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| CN108532767A (en) * | 2018-05-09 | 2018-09-14 | 中建七局安装工程有限公司 | Lifting construction method after space Reticulated dome is first pushed up by ring expansion |
| CN108678180A (en) * | 2018-05-09 | 2018-10-19 | 中建七局安装工程有限公司 | Space Reticulated dome ladder lifting construction method |
| CN110700416A (en) * | 2019-09-30 | 2020-01-17 | 鞍钢建设集团有限公司 | Large-span net rack integral jacking method and limiting and anti-tipping device thereof |
| CN111441475A (en) * | 2020-04-03 | 2020-07-24 | 陕西建工机械施工集团有限公司 | Gradually-expanding splicing jacking construction method for curved surface double-layer reticulated shell structure |
| CN111636573A (en) * | 2020-06-23 | 2020-09-08 | 中国二十冶集团有限公司 | Construction method for inclination adjustment in external expansion jacking process of net rack |
| CN111980165A (en) * | 2020-08-07 | 2020-11-24 | 中建八局第二建设有限公司 | Large-span net rack external-expanding splicing integral jacking construction method |
| CN112211292A (en) * | 2020-10-20 | 2021-01-12 | 智远谋 | Method for lifting and mounting net rack for building construction |
| CN113027141A (en) * | 2021-03-23 | 2021-06-25 | 中建八局天津建设工程有限公司 | Integral assembly jacking construction method for net rack floor support plate structure in limited space |
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| CN108532767A (en) * | 2018-05-09 | 2018-09-14 | 中建七局安装工程有限公司 | Lifting construction method after space Reticulated dome is first pushed up by ring expansion |
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| CN111636573A (en) * | 2020-06-23 | 2020-09-08 | 中国二十冶集团有限公司 | Construction method for inclination adjustment in external expansion jacking process of net rack |
| CN111980165A (en) * | 2020-08-07 | 2020-11-24 | 中建八局第二建设有限公司 | Large-span net rack external-expanding splicing integral jacking construction method |
| CN112211292A (en) * | 2020-10-20 | 2021-01-12 | 智远谋 | Method for lifting and mounting net rack for building construction |
| CN112211292B (en) * | 2020-10-20 | 2021-09-14 | 平湖市恒鑫建设开发有限公司 | Method for lifting and mounting net rack for building construction |
| CN113027141A (en) * | 2021-03-23 | 2021-06-25 | 中建八局天津建设工程有限公司 | Integral assembly jacking construction method for net rack floor support plate structure in limited space |
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