CN107013044A - The modularization installation method of lighting roof and the lowering or hoisting gear for installing lighting roof - Google Patents
The modularization installation method of lighting roof and the lowering or hoisting gear for installing lighting roof Download PDFInfo
- Publication number
- CN107013044A CN107013044A CN201610055332.9A CN201610055332A CN107013044A CN 107013044 A CN107013044 A CN 107013044A CN 201610055332 A CN201610055332 A CN 201610055332A CN 107013044 A CN107013044 A CN 107013044A
- Authority
- CN
- China
- Prior art keywords
- lighting roof
- newel
- module
- lowering
- hoisting gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/163—Jacks specially adapted for working-up building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- 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
- E04G21/167—Tools or apparatus specially adapted for working-up plates, panels or slab shaped building elements
Abstract
A kind of modularization installation method of lighting roof and the lowering or hoisting gear for installing lighting roof, wherein method is：1) lighting roof is subjected to modularization segmentation, forms annulus module and peripheral modules；2) each module is independently processed, and transported to the installation of lighting roof；3) lowering or hoisting gear is set up in the installation site of annulus module, and annulus module is fixed on lowering or hoisting gear, the installation site of annulus module is promoted to by the liter ceiling hold newel of lowering or hoisting gear step by step；4) border is installed in lighting roof and strut and bottom ring component is fixedly mounted；5) peripheral modules are fixedly mounted in annulus module and bottom ring component；6) the lighting roof structural bearings at the top of the operating platform of artificial excision center column top, is formed with enough spaces between annulus module and newel top operating platform；7) declined step by step by the liter ceiling hold newel of lowering or hoisting gear, complete the installation of lighting roof.
Description
Technical field
Filled the present invention relates to a kind of modularization installation method of lighting roof and for the lifting for installing lighting roof
Put.
Background technology
Up to now, the arrangement and method for construction of ellipse (or circular) lighting roof on various mansions, square etc. is big
Still use conventional methods more, i.e. factory process steel structure member, loose mail is transported to scene, in construction
All round victory scaffold is set up at scene, and loose mail then is hoisted into high-altitude in place, then carries out live splicing, this
High-altitude is planted to dissipate the long construction period for spelling construction method, working measure complexity, be not easy to control quality and apply
The shortcomings of work security risk is of a relatively high.Although for the installation of this steel construction with large span space
Also have with construction using installation methods such as high altitude bulk, the lifting of slitting piecemeal and integral installation constructions.Wherein
Assembly in pieces at height refers to structure smallest assembled rigid unit or loose mail directly carries out assembled method, construction in design attitude
When have full hall scaffold and encorbelment two kinds of method, the former is widely used in the construction of rack and reticulated shell, is particularly suitable for
The construction of grid structure with bolt-sphere joints；The latter's overseas construction is used, and is once used for the construction of concrete shell.
Assembly in pieces at height belongs to full hall scaffold assembling method in situ, and piece weight is light, and vertical transport is without large-scale
Crane gear, process is simple；But erecting scaffold is needed, cycle length, costly, amount of high-altitude operation
Greatly, precision is difficult to control to, and auxiliary material is more, costly.Slitting piecemeal lift-on/lift-off system refer to by structure according to
Itself form is divided into block elements, lifts, Ran Houzai in place to high-altitude design attitude by hoisting machinery respectively
Assembled integral installation method.The characteristics of the method be it is most of welding, assembly be operated in ground or work
Factory is carried out, and is conducive to control construction quality and can save a large amount of assembly making support, but it is structural segmented after need
Consider temperature pier measure, spelling rod member, unit joint, which still need, afterwards sets up assembled moulding bed.Slide in high-altitude
Shifting method, which refers to total being divided into the construction unit of several strips to be slid onto on the track set in advance, to be set
Count position and splice integral installation method, this bar element can be lifted after installation on ground to assembly
On moulding bed, it can also be segmented, smallest assembled rigid unit even loose mail is combined into sliding element on installation at high altitude moulding bed.
The basic step of integral installation construction method is：First the good steel worm-gearing of installation on ground truss at different levels and its
Internal necessary support system, then using the lifting bracket at the top of each steel column as bearing, at it
Upper laying centre-hole jack is simultaneously integrally lifted steel worm-gearing by steel strand wires, finally treats that steel worm-gearing is integrally carried
Superlift certain altitude again when being raised to design attitude, then pointwise dropping place and is connected with the steel corbel of pillar.
The selection for focusing on installation at high altitude platform of empty sliding construction method, the setting of sliding rail, tractive force
The problems such as precision of calculating and Synchronization Control, cost is very big.Existing lighting roof installation in a word,
Scale popularization can not be all carried out, its drawback is：Site Welding workload is big, it is impossible to effectively improve construction
Quality, the construction period is long, and lighting roof Steel Structure Installation is costly.
The content of the invention
Modularization operation can be realized it is an object of the invention to provide one kind, and greatly improves lighting roof
The lighting roof modularization installation method of installation effectiveness, while providing a kind of lifting dress installed for lighting roof
Put.Lighting roof installation method in the present invention be particularly suitable for use in existing mansion commonly use ellipse (or circle
Shape) lighting roof.
The modularization installation method of lighting roof, comprises the following steps in the present invention：
1) drawn, and will be entirely adopted in computer software according to the design size of lighting roof, shape
Spire makees ring disconnection, radially segmented mode and is divided into multiple independent modules, the multiple independent
Module includes positioned at the annulus module in lighting roof centre position and is distributed with the annulus module in dispersion shape
Peripheral modules, each peripheral modules are numbered respectively；
2) it is separately machined according to the shape of each module and size progress, transported after machining to lighting roof
Installation at；
3) lowering or hoisting gear is set up on the corresponding ground of lighting roof middle circle module mounting location, and will be described
Annulus module is fixed on the newel top operating platform of lowering or hoisting gear, will the annulus module fix
On the lighting roof structural bearings at the top of the newel top operating platform, by the liter of lowering or hoisting gear
Ceiling hold newel is promoted to the installation site of annulus module step by step；
4) while the annulus module rises, install fixed on the concrete floor of border in lighting roof
Strut and bottom ring component are installed；
5) peripheral modules are fixedly mounted in the annulus module and bottom ring component according to numbering；
6) the lighting roof structural bearings at the top of the operating platform of artificial excision center column top, in the annulus mould
Enough confessions center capital is formed between the vertical truss of single Pin of block and newel top operating platform
The space that portion's operating platform is moved up；
7) declined step by step by the liter ceiling hold newel of the lowering or hoisting gear, complete the installation of lighting roof.
The step 5) in, the peripheral modules are fixed on the annulus one by one in a symmetrical manner
In module and bottom ring component.
The global shape of the lighting roof is rounded or oval spherical dome.
The step 3) in, the support for including lowering or hoisting gear sets up step, is specifically：
1) install and detect a liter ceiling hold basis；
2) the first standard knot in liter ceiling hold newel is hung on the basis of liter ceiling hold using tower crane, and
Mounting seat bolt；
3) tower crane is utilized, second standard knot risen in ceiling hold newel is installed, and it is fixed；
4) tower crane is utilized, the section that climbs risen in ceiling hold newel is installed, and it is fixed；
5) newel top operating platform is lifted into section top of climbing, installed and fixed；
6) by the annulus module hoisting of lighting roof to newel top operating platform top, and with buckle with
Stem top operating platform is fixed；
7) using the electric block and slide rail climbed on section, next standard knot is installed, installed successively, directly
Installed to all standard knots, by annulus module raises to installation site.
The annulus module is welded by two symmetrical intermediate modules on the newel top operating platform top
It is connected into shape.
In the present invention for lighting roof modularization installation method lowering or hoisting gear include a liter ceiling hold basis,
Ceiling hold newel, newel top operating platform are risen, described liter of ceiling hold basis is using rolling wide width wing edge
H profile steel, fixation is respectively welded in groined type.
Described liter of ceiling hold newel is made up of standard knot and the section that climbs, and is set on the top of the section that climbs
There are electric block, counterweight, connected while being provided with the section that climbs with newel top operating platform
The cat ladder with guardrail.
The newel top operating platform include lighting roof structural bearings, 8 vertical truss of list Pin,
Platform center framework and multiple connecting rods, use spiral shell between the single vertical truss of Pin and Platform center framework
Tether and connect, form a detachable, reusable structure, the newel top operating platform is consolidated
Dingan County is mounted in the top for the section that climbs.
The lighting roof structural bearings is 8 pieces of steel plate washers being fixed on 8 vertical truss of list Pin, in institute
The outboard end for stating steel plate washer is fixed with for carrying out spacing limited block to the annulus module.
The Platform center framework includes four columns being fixedly connected with the section top side detachable that climbs, Gu
Surely the square set platform of at the top of four root posts and lower portion is connected to, is put down in two square sets up and down
The mode that the side of platform is bolted is fixedly connected with 8 vertical truss of list Pin, and 8 lists Pin is stood
Formula truss is distributed in dispersion shape mode.And connected between two neighboring single vertical truss of Pin by connecting rod
It is fixed, then flat board is laid between the connecting rod of bottom surface level, in bottom periphery formation construction passage.
Lighting roof modularization installation method can effectively solve to adapt to current and later architectural image in the present invention
The requirement of each side such as rich and changeful, complicated, corollary system is more, technological requirement height, can be work
Journey provides efficient, simple, convenient, safe, economic solution, promotes industrial development and society to enter
Step.
Brief description of the drawings
Fig. 1 is the schematic side view of lighting roof in the present invention.
Fig. 2 is the schematic top plan view of lighting roof in the present invention.
Fig. 3 is lowering or hoisting gear and structural representation of the annulus module in raised configuration in the present invention.
Fig. 4 is the structural representation of the newel top operating platform of lowering or hoisting gear in the present invention.
Fig. 5 is the structural representation on liter ceiling hold basis in the present invention.
Fig. 6 is the mounting structure schematic diagram of the limited block in the present invention.
Fig. 7 is the flow chart of lighting roof installation method in the present invention.
Embodiment
In order to further illustrate the principle and structure of the present invention, the present invention is preferable to carry out in conjunction with accompanying drawing
Example is illustrated, but the embodiment is only to provide explanation to be used with explanation, it is impossible to for limiting this
The scope of patent protection of invention.
As shown in Figure 3 and Figure 4, liter is included for the lowering or hoisting gear in lighting roof installation method of the present invention
Ceiling hold basis 1, liter ceiling hold newel 2, newel top operating platform 3.Wherein：Rise ceiling hold
Basis 1 is in groined type, and being welded to each other fixation by rolling wide width wing edge H profile steel 10 forms, and groined type rises top
Eight ends 12 of bracket basis 1 are connected by built-in fitting with reinforced concrete girder in building or post,
Guarantee to carry superstructure load, construction loads and consider certain failure load, may be used also if necessary
With to being reinforced for connecting the structural elements under the fulcrum 11 for rising ceiling hold newel 2, such as Fig. 5 institutes
Show.
Rise ceiling hold newel 2 and include standard knot components 20 and climb a section 21, wherein standard knot
Component 20 includes some vertical fixations and can enumerate first in fixed standard knot, standard knot components 20
Standard knot is vertically fixed on groined type and risen on the fulcrum 11 on ceiling hold basis 1, and the section 3 that climbs is enclosed on standard knot
On component 20, wherein standard knot components 20 and the section 21 that climbs are using the standard knot used in current tower crane
With the section 21 that climbs, therefore for standard knot and climb section 21 rise and decline work principle it is no longer detailed
Description.But in the present invention climbing section 21 be used in existing tower crane climb section on the basis of at it
Bottom is provided with some the first electronic fixed claw (not shown)s for being used to grab standardization section component 20,
Counterweight support 23 is fixed with the side on 21 tops of section of climbing, is located on 21 tops of section of climbing and is provided with counterweight
The corresponding opposite side of support 23 is fixed with boatswain chair platform 24, and the lower surface of boatswain chair platform 24 passes through electric sliding rail 26
Electric block 27 is slidably connected, electric block 27 is hung by lifting rope 28 and is connected to electric crane pawl 25, with side
Just the installation of lighting roof is realized, while in order to ensure the safety of workmen, in 21 tops of section welding of climbing
It is fixed with band guardrail cat ladder (not shown).
Newel top operating platform 3, is fixedly mounted on the top for the section 21 that climbs, such as Fig. 3 and Fig. 4 institutes
Show.Newel top operating platform 3 include lighting roof structural bearings 30,8 vertical truss 31 of list Pin,
Platform center framework 32 and multiple connecting rods 33.
Platform center framework 32 includes four columns 34 being fixedly connected with 21 top side detachables of section that climb,
The square set platform 35 of (such as welding manner) at the top of four root post 34 and lower portion is fixedly connected with,
Stood while two or four can be further added by between square set platform 35 and be used to strengthen the second of intensity
Post 36, it is ensured that the intensity and rigidity of whole newel top operating platform 3.In two square sets up and down
The mode that the side of platform 35 is bolted is fixedly connected with 31,8 list Pin of the vertical truss of 8 list Pin
Vertical truss 31 is distributed in dispersion shape mode.And by even between two neighboring single vertical truss 31 of Pin
Extension bar 33 is connected, then lays flat board between the connecting rod 33 of bottom surface level, can be in bottom surface week
Side forms construction passage 38, while setting up guardrail between vertical connecting 33, it is ensured that workmen's
Safety, guardrail extends to the top for the section 21 that climbs always.
Lighting roof structural bearings 30 is bolted for 8 pieces and is fixed on the vertical ends of truss 31 of single Pin
The steel plate washer 37 on surface, the annulus module 4 of lighting roof, which is mounted directly, to be placed on steel plate washer 37, steel plate washer
37 be I-steel, and width, can be in center capital when steel plate washer 37 is removed in more than 300mm
Enough spaces are reserved between the top of portion's operating platform 3 and annulus module 4, to be grasped at the top of newel
Make platform 3 and the section 21 that climbs has enough rise spaces, realize the dismounting of standard knot.In steel plate washer
37 lateral border, which is bolted, is fixed with limited block 39, can be by adjusting limited block 39 in steel pad
Installation site on piece 37, to adapt to a variety of various sizes of lighting roof annulus modules 4, as shown in Figure 6.
Separately lighting roof top module absolute altitude error and ring error can be adjusted by adjusting the height of steel plate washer 37.
As depicted in figs. 1 and 2, need lighting roof to be mounted substantially in oval (or circle) ball in the present invention
Shape, the present invention for it is this substantially installed in oval (or circle) spherical lighting roof when enter according to the following steps
OK, as shown in Figure 7：
Using major diameter as 31.600m, minor axis diameter is 22.106m, and rise is 4.987m, bottom branch
Exemplified by the pillar height of short column 6 is supportted for 1.238m oval spherical lighting roof, described in detail.Wherein support short
Post 6 has 40, and 1.278m every long, weight 70kg are taken root on the concrete floor of lighting roof border.
It is welded with bottom ring component 7 between adjacent supports short column 6, ring component 7 totally 40, most long 2.3m,
Weight 90kg.These structural elements of lighting roof are quarter bend, between loose mail and module, module and module
Connection uses butt welding.These welding techniques are prior art, are no longer described in detail.
The first step：The specific size and shape of oval spherical lighting roof is drawn in a computer, and
Using computer oval spherical lighting roof is made ring disconnect, it is radially segmented, be divided into 11 kinds of different shapes
Module, module number is 22 pieces, includes in 22 pieces of modules middle two pieces, and two pieces in the middle of this exist
The annulus module 4 positioned at lighting roof centre position can be formed after splicing, remaining is past from annulus module 4
To in dispersion shape arranged distribution, and it is symmetrical 20 pieces of peripheral modules 5 two-by-two.
Second step：Produced by lighting roof manufacturing firm according to the size of disparate modules, and transport need
The job site of lighting roof steel construction is installed.
3rd step：One lowering or hoisting gear is set at the construction field (site), annulus module 4 is fixedly mounted on lifting dress
The top put, lighting roof installation position is lifted by lowering or hoisting gear by middle circle module 4.
4th step：While annulus module rises, install solid on the concrete floor of border in lighting roof
Dingan County fills strut 6 and bottom ring component 7.
5th step：Peripheral modules 5 are fixedly mounted in annulus module 4 and bottom ring structure according to numbering
On part 7, the installation of peripheral modules 5 needs to be symmetrically installed according to numbering during segmentation.
6th step：Artificial excision is fixed on the lighting roof knot between annulus module 4 and the vertical truss 31 of list Pin
Piece steel plate washer of structure bearing 30, i.e., 8 37, so that the shape between annulus module 4 and the vertical truss 31 of list Pin
Into the space having for newel top operating platform 3 and the rising of section 21 of climbing, provided for the dismounting of standard knot
Space.
7th step：Have and dismantle standard knot step by step, complete the installation of lighting roof.
In superincumbent third step, the support for including lowering or hoisting gear sets up step, is specifically：
1) install and detect a liter ceiling hold basis 1；
2) the first standard knot is hung on liter ceiling hold basis 1 using tower crane, and mounting seat bolt；
3) tower crane is utilized, second standard knot is installed, and it is fixed；
4) tower crane is utilized, the section 21 that climbs is installed, and it is fixed；
5) newel top operating platform 3 is lifted into 21 tops of section of climbing, installed and fixed；
6) two intermediate modules of lighting roof are lifted into the top of newel top operating platform 3, and with card
Button is fixed with newel top operating platform 3, is symmetrically welded inside-out as an entirety, i.e. annulus
Module 4；In this step, can be by module between center after ground welding if lifting condition license
Integral hoisting；
7) using the electric block 27 and slide rail 26 climbed on section 21, next standard knot is installed, according to
It is secondary to install, until all standard knots are installed, by annulus module raises to installation site.
Claims (10)
1. a kind of modularization installation method of lighting roof, comprises the following steps：
1) drawn, and will be entirely adopted in computer software according to the design size of lighting roof, shape
Spire makees ring disconnection, radially segmented mode and is divided into multiple independent modules, the multiple independent
Module includes positioned at the annulus module in lighting roof centre position and is distributed with the annulus module in dispersion shape
Peripheral modules, each peripheral modules are numbered respectively；
2) it is separately machined according to the shape of each module and size progress, transported after machining to lighting roof
Installation at；
3) lowering or hoisting gear is set up on the corresponding ground of lighting roof middle circle module mounting location, and will be described
Annulus module is fixed on the newel top operating platform of lowering or hoisting gear, will the annulus module fix
On the lighting roof structural bearings at the top of the newel top operating platform, by the liter of lowering or hoisting gear
Ceiling hold newel is promoted to the installation site of annulus module step by step；
4) while the annulus module rises, install fixed on the concrete floor of border in lighting roof
Strut and bottom ring component are installed；
5) peripheral modules are fixedly mounted in the annulus module and bottom ring component according to numbering；
6) the lighting roof structural bearings at the top of the operating platform of artificial excision center column top, in the annulus mould
Enough confessions center capital is formed between the vertical truss of single Pin of block and newel top operating platform
The space that portion's operating platform is moved up；
7) declined step by step by the liter ceiling hold newel of the lowering or hoisting gear, complete the installation of lighting roof.
2. the modularization installation method of lighting roof according to claim 1, it is characterised in that described
Step 5) in, the peripheral modules are fixed on the annulus module and bottom one by one in a symmetrical manner
On portion's ring component.
3. the modularization installation method of lighting roof according to claim 1, it is characterised in that described
The global shape of lighting roof is rounded or oval spherical dome.
4. the modularization installation method of lighting roof according to claim 1, it is characterised in that described
Step 3) in, the support for including lowering or hoisting gear sets up step, is specifically：
1) install and detect a liter ceiling hold basis；
2) the first standard knot in liter ceiling hold newel is hung on the basis of liter ceiling hold using tower crane, and
Mounting seat bolt；
3) tower crane is utilized, second standard knot risen in ceiling hold newel is installed, and it is fixed；
4) tower crane is utilized, the section that climbs risen in ceiling hold newel is installed, and it is fixed；
5) newel top operating platform is lifted into section top of climbing, installed and fixed；
6) by the annulus module hoisting of lighting roof to newel top operating platform top, and with buckle with
Stem top operating platform is fixed；
7) using the electric block and slide rail climbed on section, next standard knot is installed, installed successively, directly
Installed to all standard knots, by annulus module raises to installation site.
5. the modularization installation method of lighting roof according to claim 4, it is characterised in that described
Annulus module is shaped by two symmetrical intermediate modules in the newel top operating platform upper weld.
6. a kind of lifting dress for being used for lighting roof modularization installation method in above-mentioned any one claim
Put, it is characterised in that include a liter ceiling hold basis, rise ceiling hold newel, newel top operational
Fixation is respectively welded in groined type using rolling wide width wing edge H profile steel in platform, described liter of ceiling hold basis.
7. lowering or hoisting gear according to claim 6, it is characterised in that described liter of ceiling hold newel
It is made up of standard knot and the section that climbs, the top of the section that climbs is provided with electric block, counterweight, simultaneously
The cat ladder with guardrail connected with newel top operating platform is installed in the section that climbs.
8. lowering or hoisting gear according to claim 6, it is characterised in that the newel top operational
Platform includes lighting roof structural bearings, 8 vertical truss of list Pin, Platform center framework and multiple connections
Bar, is connected by screw bolts between the single vertical truss of Pin and Platform center framework, formed one it is detachable,
Reusable structure, the newel top operating platform is fixedly mounted on the top for the section that climbs.
9. lowering or hoisting gear according to claim 8, it is characterised in that the lighting roof structural bearings
For 8 pieces of steel plate washers being fixed on 8 vertical truss of list Pin, it is fixed with the outboard end of the steel plate washer
For carrying out spacing limited block to the annulus module.
10. lowering or hoisting gear according to claim 8, it is characterised in that Platform center framework includes
There are four columns being fixedly connected with the section top side detachable that climbs, be fixedly connected at the top of four root posts with
The square set platform at half position, the side being bolted in the side of two square set platforms up and down
Formula is fixedly connected with 8 vertical truss of list Pin, and the vertical truss of 8 list Pin is distributed in dispersion shape mode.
And be connected between two neighboring single vertical truss of Pin by connecting rod, then in the connection of bottom surface level
Flat board is laid between bar, in bottom periphery formation construction passage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610055332.9A CN107013044A (en) | 2016-01-27 | 2016-01-27 | The modularization installation method of lighting roof and the lowering or hoisting gear for installing lighting roof |
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|---|---|---|---|
| CN201610055332.9A CN107013044A (en) | 2016-01-27 | 2016-01-27 | The modularization installation method of lighting roof and the lowering or hoisting gear for installing lighting roof |
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| CN107013044A true CN107013044A (en) | 2017-08-04 |
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| CN109695317A (en) * | 2018-12-29 | 2019-04-30 | 中建一局集团第一建筑有限公司 | A kind of lighting roof Steel Structure Installation method |
| CN114233022A (en) * | 2022-01-05 | 2022-03-25 | 北钢建设集团股份有限公司 | Circular steel structure dome auxiliary installation equipment and construction method |
| CN114482381A (en) * | 2022-02-17 | 2022-05-13 | 中建八局新型建造工程有限公司 | Method for mounting parts of dome steel structure |
| CN114482281A (en) * | 2022-02-17 | 2022-05-13 | 中国建筑第二工程局有限公司 | Elliptical daylighting roof and installation method thereof |
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| CN114482381A (en) * | 2022-02-17 | 2022-05-13 | 中建八局新型建造工程有限公司 | Method for mounting parts of dome steel structure |
| CN114482281A (en) * | 2022-02-17 | 2022-05-13 | 中国建筑第二工程局有限公司 | Elliptical daylighting roof and installation method thereof |
| CN114482381B (en) * | 2022-02-17 | 2024-04-16 | 中建八局新型建造工程有限公司 | Method for installing parts for dome steel structure |
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