CN110439292A - Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss - Google Patents
Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss Download PDFInfo
- Publication number
- CN110439292A CN110439292A CN201910773207.5A CN201910773207A CN110439292A CN 110439292 A CN110439292 A CN 110439292A CN 201910773207 A CN201910773207 A CN 201910773207A CN 110439292 A CN110439292 A CN 110439292A
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- stockyard
- fabrication
- beam structure
- column
- roof beam
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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
-
- 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
- E04G21/162—Handles to carry construction blocks
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of fabrication and installation systems and construction technology for large-scale closed type industrial stockyard roof truss, belong to factory's design-build technical field of construction.There is provided a kind of transformation of roof truss influences smaller on raw, and working measure takes significantly reduced fabrication and installation system and construction technology.The fabrication and installation system includes assembly platform and high-altitude transshipment acitivity, after after stockyard, column is completed when construction, guide rail is first installed to the top for stacking field column, then cross traveling trolley is arranged on guide rail, and the assembly platform to complete is installed to industrial stockyard end middle simultaneously, then using the cross traveling trolley and the assembly platform as workbench by big parts assembly at single Pin roof beam structure, then single Pin roof beam structure is lifted off assembly platform and is supported on the cross traveling trolley at both ends using jack, it then will be at traversing to the corresponding stockyard column of single Pin roof beam structure by driving device, it finally recycles jack that single Pin roof beam structure is lifted off cross traveling trolley to be assembled on corresponding stockyard column.
Description
Technical field
The present invention relates to a kind of fabrication and installation system, more particularly, to a kind of for large-scale closed type industrial stockyard roof truss
Fabrication and installation system belongs to factory's design-build technical field of construction.The invention further relates to a kind of using the fabrication and installation system
The construction technology of large-scale closed type industrial stockyard roof truss is made in construction in a systematic way.
Background technique
Since production needs, span is increasing, and the huge Roof Truss Construction difficulty of large span closed workshop is big, applies in industrial stockyard
Work measure cost is high；And since use has been put into existing stockyard, the heaps such as internal stacker-reclaimer, loading machine take equipment to belong to mostly
High loaded process state needs to carry out closing transformation in the case where protecting and producing.Domestic industry closing stockyard is logical using steelframe at present
It is often usually the structure type of film or color steel tile for rack or self-stabilization Huge Steel Truss structure+coating, when construction adopts
Carrying out step by step mode is taken, material needs have bad luck out roof truss installation region, larger to Influence of production.When closing stockyard span is larger
When, span is more than 100m or even 200m, and single Pin roof truss weight is more than 150t, and common hoisting power is unable to satisfy Huge Steel Truss
Roof truss lifting requirements generally use high-altitude segmented on-site assembly roof truss mode and install, and investment is big, long in time limit, to Influence of production pole
Greatly.From the aspect of reducing mounting cost and reducing the influence to production, there is an urgent need to a kind of economy and it can be realized what guarantor produced
Large size closing stockyard roof truss mounting means.
Summary of the invention
The technical problems to be solved by the present invention are: providing, a kind of roof truss transformation is smaller on raw influence, and working measure takes aobvious
Write the fabrication and installation system for large-scale closed type industrial stockyard roof truss reduced.Present invention also provides a kind of using described
The construction technology of fabrication and installation system building large size closed type industrial stockyard roof truss.
Used technical solution is to solve above-mentioned technical problem: a kind of for large-scale closed type industrial stockyard roof truss
Fabrication and installation system, the fabrication and installation system include assembly platform and high-altitude transshipment acitivity, the assembly
The end for being arranged in industrial stockyard that working platform face and stockyard column cope level are adapted, the high-altitude transshipment acitivity can
The top for being arranged in each stockyard column being completed of disassembly, constitutes the big component of the roof truss in the assembly
The integral manufacturing of list Pin roof beam structure is completed on platform, single Pin roof beam structure described in each part that integral manufacturing is completed passes through the high idle running
Fortune mechanism is moved on corresponding stockyard column.
Further, the assembly platform includes the Auxiliary support platform of intermediate assembly platform and both ends,
The small end of big component described in each part is supported on the Auxiliary support platform, and the big end of big component described in each part is supported on described
An entirety is connected as on assembly platform and on the assembly platform.
The preferred mode of the above solution is that the assembly platform is the fixation truss positioned at industrial stockyard end middle
Platform.
Further, the Auxiliary support platform for being located at both ends is respectively a part of the high-altitude transshipment acitivity.
The preferred mode of the above solution is that the high-altitude transshipment acitivity includes guide rail and crossing system, described in each
Guide rail is removably packed in the top of respective side stockyard column along its length, and the single Pin roof beam structure being completed passes through described
Crossing system is moved on corresponding stockyard column under the cooperation of the guide rail.
Further, the crossing system includes cross traveling trolley and driving device, both ends are respectively supported at the cross
The list Pin roof beam structure moved on trolley is moved on corresponding stockyard column by the driving device along the guide rail；In
In the assembling process of single Pin roof beam structure, the small end of big component is supported on the cross traveling trolley.
The preferred mode of the above solution is that the driving device is three conjunctions connecting with the traveling wheel of the cross traveling trolley
The dynamical system setting of one motor reducer, or the hoist engine to connect with the vehicle frame of the cross traveling trolley, the hoist engine exists
On the Horizon of respective side stockyard post wires extended line.
Further, the high-altitude transshipment acitivity further includes jacking component, single Pin in place is completed or moved
Roof beam structure is lifted off assembly platform by the jacking component or removes the cross traveling trolley.
Further, the jacking component is that quantity and list Pin roof beam structure need to jack adaptable more of number of support points
A jack.
A kind of construction technology using the fabrication and installation system fabrication and installation list Pin roof beam structure, is completed to stockyard column
Afterwards, guide rail is first installed to the top for stacking field column, is then arranged into cross traveling trolley on the guide rail, and simultaneously will system
The assembly platform for making to complete is installed to industrial stockyard end middle, then with the cross traveling trolley and the assembly platform
For workbench by big parts assembly at single Pin roof beam structure, then single Pin roof beam structure is lifted off assembly platform and supports to two using jack
On the cross traveling trolley at end, then finally recycled very heavy by driving device by traversing to the corresponding stockyard column of single Pin roof beam structure
Single Pin roof beam structure is lifted off cross traveling trolley and is assembled by top completes the fabrication and installation of the list Pin roof beam structure on corresponding stockyard column.
The beneficial effects of the present invention are: the application includes assembly platform and high-altitude transshipment acitivity by being arranged a set of
Fabrication and installation system, and industry is arranged in by what the assembly working platform face and stockyard column cope level were adapted
Then the high-altitude transshipment acitivity is removably arranged in the top for each stockyard column being completed by the end in stockyard
Portion, in this way, can first will after stockyard column is completed when carrying out the construction of large-scale closed type industrial stockyard roof truss
Guide rail is installed to the top for stacking field column, is then arranged into cross traveling trolley on the guide rail, and will complete simultaneously
Assembly platform be installed to industrial stockyard end middle, then using the cross traveling trolley and the assembly platform as work
Single Pin roof beam structure at single Pin roof beam structure, is then lifted off assembly platform and is supported to the cross at both ends by big parts assembly by platform using jack
Trolley is moved, then finally recycles jack by single Pin at traversing to the corresponding stockyard column of single Pin roof beam structure by driving device
Roof beam structure is lifted off cross traveling trolley and is assembled into the fabrication and installation for completing the list Pin roof beam structure on corresponding stockyard column.Due to using this Shen
The fabrication and installation system that please be provided is carried out the construction of list Pin roof beam structure with construction method provided by the present application, does not need not only to carry out
The erection of full paulin tank tower, and only an assembly platform need to be set up in an end in stockyard, make full use of high idle running
The structure for transporting mechanism itself reaches and minimizes roof truss transformation to raw influence, significantly reduces the purpose that working measure takes.
Detailed description of the invention
Fig. 1 is main view of the present invention for the fabrication and installation system of large-scale closed type industrial stockyard roof truss；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the main view of cross traveling trolley of the present invention；
Fig. 4 is the side view of Fig. 3；
Fig. 5 is the top view of Fig. 3.
In the figure, it is marked as high-altitude transshipment acitivity 1, stockyard column 2, list Pin roof beam structure 3, assembly platform 4, guide rail 5, crossing system
6, cross traveling trolley 7, hoist engine 9, jacking component 10, sub-truss 11, support deflecting roller 12, driving motor 13, reel 14, traction
Wirerope 15, vehicle frame 16, traveling wheel 17, Overthrow preventing device 18.
Specific embodiment
It is that a kind of roof truss transformation provided by the invention is smaller on raw influence as shown in fig. 1~fig. 5, working measure takes significant drop
The low fabrication and installation system for large-scale closed type industrial stockyard roof truss, and it is big using the fabrication and installation system building
The construction technology of type closed type industrial stockyard roof truss.The fabrication and installation system includes assembly platform and high-altitude conveyance
The end for being arranged in industrial stockyard that structure 1, the assembly working platform face and 2 cope level of stockyard column are adapted,
The high-altitude transshipment acitivity 1 is removably arranged in the top for each stockyard column 2 being completed, and constitutes the roof truss
Big component completes the integral manufacturing of list Pin roof beam structure 3 on the assembly platform, described in each part of integral manufacturing completion
Single Pin roof beam structure 3 is moved on corresponding stockyard column 2 by the high-altitude transshipment acitivity 1.The application is by being arranged a set of packet
Include the fabrication and installation system of assembly platform and high-altitude transshipment acitivity, and by the assembly working platform face and stockyard
The adaptable end for being arranged in industrial stockyard of column cope level, then removably arranges the high-altitude transshipment acitivity
At the top for each stockyard column being completed, in this way, when carrying out the construction of large-scale closed type industrial stockyard roof truss,
Guide rail to be first installed to the top for stacking field column, cross traveling trolley is then arranged into institute after stockyard column be completed
On the guide rail stated, and the assembly platform to complete is installed to industrial stockyard end middle simultaneously, then with the cross
Move trolley and the assembly platform be workbench by big parts assembly at single Pin roof beam structure, then using jack by single Pin roof beam structure
It is lifted off assembly platform and supports to the cross traveling trolley at both ends, then stood single traversing to corresponding stockyard of Pin roof beam structure by driving device
At column, finally recycles jack single Pin roof beam structure is lifted off cross traveling trolley to be assembled on corresponding stockyard column and complete the list Pin
The fabrication and installation of roof beam structure.Due to using fabrication and installation system provided by the present application, carried out with construction method provided by the present application single
The construction of Pin roof beam structure does not need the erection for carrying out full paulin tank tower not only, and only need to set up a high-altitude in an end in stockyard
Assembly platform makes full use of the structure of high-altitude transshipment acitivity itself, reaches and minimizes roof truss transformation on raw influence, significantly
Reduce the purpose that working measure takes.
Above-mentioned production is applied in mode, for the ease of big component is assembled into single Pin that single Pin roof beam structure and ease of assembly are completed
The transfer of roof beam structure, assembly platform described herein include the Auxiliary support platform of intermediate assembly platform 4 and both ends, respectively
The small end of big component described in part is supported on the Auxiliary support platform, and the big end of big component described in each part is supported on the group
An entirety is connected as on assembling platform 4 and on the assembly platform 4.At this point, the assembly platform 4 preferably select structure be positioned at
The fixation truss platform of industrial stockyard end middle；The Auxiliary support platform positioned at both ends is respectively preferably the high-altitude
A part of transshipment acitivity 1.
Correspondingly, in order to adapt to the feature that high lost motion fortune big structure list Pin beam frame structure is huge, own wt is heavy, Yi Jiman
The requirement of sufficient safe transit, while making simplifying the structure, standardizing for the high-altitude transshipment acitivity 1 as far as possible again, it is herein described
High-altitude transshipment acitivity 1 include guide rail 5 and crossing system 6, guide rail 5 described in each is removably packed in pair along its length
The top for answering side stockyard column 2, the single Pin roof beam structure 3 being completed is by the crossing system 6 under the cooperation of the guide rail 5
It is moved on corresponding stockyard column 2.And the installation of the guide rail for convenience, and integrated support crossing system, list Pin beam
The weight of frame, is additionally provided with sub-truss 11 between adjacent two stockyard columns 2, and the guide rail passes through the support purlin
Frame 11 be removably arranged in adjacent two described between stockyard column 2.
At this point, in order to meet the requirement that crossing system can take Auxiliary support platform feature, the crossing system 6 is wrapped
Include cross traveling trolley 7 and driving device, both ends be respectively supported at the list Pin roof beam structure 3 on the cross traveling trolley 7 pass through it is described
Driving device is moved on corresponding stockyard column 2 along the guide rail 5；In the assembling process of single Pin roof beam structure 3, big component
Small end is supported on the cross traveling trolley 7.Further, the driving device is the traveling wheel with the cross traveling trolley 7
The three-in-one motor reducer of connection, or the hoist engine 9 to connect with the vehicle frame of the cross traveling trolley 7, the hoist engine 9 move
Force system is arranged on the Horizon of respective side stockyard post wires extended line.When the driving device is using hoist engine 9,
Support deflecting roller 12 is additionally provided on guide rail extended line.Certainly, the hoist engine 9 needs to include driving motor 13, winding
Reel 14 and haulage cable 15 of wirerope etc..Meanwhile vehicle frame 16, row of the cross traveling trolley 7 in addition to truss structure
It walks outside wheel 17, in order to avoid trolley topples in operational process, is additionally provided on the vehicle frame and the traveling wheel phase
The Overthrow preventing device 18 of adaptation, the vehicle frame are supported on guide rail by the traveling wheel, the Overthrow preventing device 18
It rolls and connects with the downside of guide rail rail head.
Meanwhile for the ease of the single Pin roof beam structure being completed is transferred on cross traveling trolley from assembly platform, Yi Jizhuan
After fortune is in place, single Pin roof beam structure is removed into cross traveling trolley, the high-altitude transshipment acitivity 1 further includes jacking component 10, is completed
Or mobile in place single Pin roof beam structure 3 by the jacking component 10 is lifted off assembly platform or traversing small described in removing
Vehicle.At this point, the jacking component 10 is that quantity and list Pin roof beam structure 3 need to jack adaptable multiple very heavy of number of support points
Top.
In this way, after stockyard column 2 is completed, can will first be led by following method rows in specific construction
Rail 5 is installed to the top for stacking field column 2, is then arranged into cross traveling trolley on the guide rail 5, and will complete simultaneously
Assembly platform 4 be installed to industrial stockyard end middle, be then with the cross traveling trolley 7 and the assembly platform 4
Single Pin roof beam structure 3 at single Pin roof beam structure 3, is then lifted off assembly platform 4 and is supported to by big parts assembly by workbench using jack
On the cross traveling trolley 7 at both ends, then finally recycled by driving device by traversing to the corresponding stockyard column 2 of single Pin roof beam structure 3
Jack by single Pin roof beam structure 3 be lifted off cross traveling trolley be assembled into completed on corresponding stockyard column 2 the list Pin roof beam structure production pacify
Dress.
In conclusion also using fabrication and installation system fabrication and installation large size closed type industrial stockyard provided by the present application roof truss
It has the following advantages that, 1, the installation dress that can be reused and be able to achieve guarantor and produce installed suitable for large scale industry closing stockyard roof truss
It sets, constitute high-altitude group to plateform system using two trolleies and a platform and then utilizes the detachable sub-truss of workshop intercolumniation
It sets up the traversing roof truss of track, finally using eight synchronous hydra-ulic jacks be installed in place roof truss, which is able to achieve in not shadow
In the case where ringing production, large size closing stockyard roof truss is installed in place, and the detachable recycling of equipment is installed, substantially reduces peace
Dress expense.2, reusable to reduce mounting cost and not influence the installation equipment of production, especially suitable for Wide Span Huge
The installation of roof truss can be widely applied to the closing improvement project in current large and medium-sized stockyard, and the market demand is very big, has a extensive future.
Embodiment one
A kind of large scale industry closing stockyard roof truss installation equipment.Installation equipment mainly includes high-altitude group to plateform system, room
Frame crossing system and roof truss jacking system.
1, high-altitude group is to plateform system: high-altitude group is erected at workshop end to platform, is made respectively using two cross traveling trolleys
For the platform on both sides, centre sets up a platform again, the segmentation roof truss assembled on ground is hung using truck crane to high-altitude group pair
Plateform system carries out high-altitude group pair, is assembled into the complete roof truss of a Pin.Platform expense can be saved using trolley as the platform on both sides,
And roof truss group to after the completion can directly it is traversing.
2, roof truss crossing system: roof truss crossing system includes cross traveling trolley, trolley track and transverse transmission device.Roof truss is horizontal
Shifting system is set up using factory building columns, installs demountable sub-truss in workshop intercolumniation, setting up on sub-truss can tear open
The trolley track unloaded, roof truss are traversing by trolley.The crossing system is detachable, is then installed on the column of other closed workshops
Upper progress roof truss installation, substantially reduces mounting cost.
A. cross traveling trolley is mainly by car body, traveling wheel, steel rope trailer, horizontal guide sheave and anti-tilting apparatus structure
At.Cross traveling trolley is rolling friction mode, and running resistance is small, and horizontal guide sheave can prevent roof truss horizontal-shift, anti-tilting apparatus
It can prevent trolley from tumbling.
B. it trolley track: is mainly made of track, track girder and sub-truss.Sub-truss is set between workshop column,
Detachably；Erection of track beam is in column top surface, sectional disassembly；Track also dismantle by sectional.
C. transverse transmission device: two schemes can be used in transverse transmission device, and scheme one is mainly filled by reel, Frequency Drive
It sets, wirerope and support deflecting roller etc. are constituted.Scheme two uses centre-hole jack.Cross traveling trolley is drawn in transverse transmission device
It is lower, it can be achieved that stable transverse shifting at a slow speed.
3, it roof truss jacking system: is mainly made of big travel synchronization hydraulic jack system and jacking bracket.Lifting system
It unites and synchronization lifting can be achieved, roof truss is installed in place.Another room Pin is installed in disassembly transposition after jacking system installs a Pin roof truss
Frame.
Feature of the present invention: making full use of closed workshop column itself, and will install equipment Design into detachable repeatable benefit
With mode, it can be used for the installation of multiple large-scale closing stockyard roof trusses；Using cross traveling trolley as group to platform, reduce high-altitude group pair
Platform quantity substantially reduces mounting cost, while can realize that guarantor produces installation.
Claims (10)
1. a kind of fabrication and installation system for large-scale closed type industrial stockyard roof truss, it is characterised in that: the fabrication and installation
System includes assembly platform and high-altitude transshipment acitivity (1), and the assembly working platform face and stockyard column (2) are pushed up
The adaptable end for being arranged in industrial stockyard of portion's elevation, the high-altitude transshipment acitivity (1) are removably arranged in group and install
At each stockyard column (2) top, the big component for constituting the roof truss completes list Pin on the assembly platform
The integral manufacturing of roof beam structure (3), integral manufacturing complete each part described in single Pin roof beam structure (3) pass through the high-altitude transshipment acitivity
(1) it is moved on corresponding stockyard column (2).
2. the fabrication and installation system according to claim 1 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The assembly platform includes the Auxiliary support platform of intermediate assembly platform (4) and both ends, big component described in each part
Small end is supported on the Auxiliary support platform, and the big end of big component described in each part is supported on the assembly platform (4) simultaneously
An entirety is connected as on the assembly platform (4).
3. the fabrication and installation system according to claim 2 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The assembly platform (4) is the fixation truss platform positioned at industrial stockyard end middle.
4. the fabrication and installation system according to claim 3 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The Auxiliary support platform positioned at both ends is respectively a part of the high-altitude transshipment acitivity (1).
5. the fabrication and installation system according to any one of claims 1 to 4 for large-scale closed type industrial stockyard roof truss,
It is characterized by: the high-altitude transshipment acitivity (1) includes guide rail (5) and crossing system (6), guide rail (5) edge described in each
Length direction is removably packed in the top of respective side stockyard column (2), and the single Pin roof beam structure (3) being completed passes through described
Crossing system (6) is moved on corresponding stockyard column (2) under the cooperation of the guide rail (5).
6. the fabrication and installation system according to claim 5 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The crossing system (6) includes cross traveling trolley (7) and driving device, and both ends are respectively supported on the cross traveling trolley (7)
The list Pin roof beam structure (3) is moved on corresponding stockyard column (2) by the driving device along the guide rail (5)；In
In the assembling process of single Pin roof beam structure (3), the small end of big component is supported on the cross traveling trolley (7).
7. the fabrication and installation system according to claim 6 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The driving device is the three-in-one motor reducer connecting with the traveling wheel of the cross traveling trolley (7), or is and the cross
The hoist engine (9) of the vehicle frame connection of trolley (7) is moved, the dynamical system of the hoist engine (9) is arranged in respective side stockyard post wires
On the Horizon of extended line.
8. the fabrication and installation system according to claim 7 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The high-altitude transshipment acitivity (1) further includes jacking component (10), is completed or moves single Pin roof beam structure (3) in place and pass through institute
The jacking component (10) stated is lifted off assembly platform or removes the cross traveling trolley.
9. the fabrication and installation system according to claim 8 for large-scale closed type industrial stockyard roof truss, it is characterised in that:
The jacking component (10) is that quantity and list Pin roof beam structure (3) need to jack the adaptable multiple jack of number of support points.
10. a kind of construction technology using fabrication and installation system fabrication and installation list Pin roof beam structure described in claim 9, feature exist
In: after stockyard column (2) is completed, first guide rail (5) is installed to and stacks field column (2 top, then by cross traveling trolley
It is arranged on the guide rail (5), and the assembly platform to complete (4) is installed to industrial stockyard end middle simultaneously,
Then with the cross traveling trolley (7) and the assembly platform (4) be workbench by big parts assembly at single Pin roof beam structure (3),
Then single Pin roof beam structure (3) is lifted off assembly platform (4) and is supported on the cross traveling trolley (7) at both ends using jack, then led to
Over-driving device finally recycles jack by single Pin roof beam structure (3) at traversing to the corresponding stockyard column (2) of single Pin roof beam structure (3)
It is lifted off cross traveling trolley and is assembled into the fabrication and installation for completing the list Pin roof beam structure on corresponding stockyard column (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773207.5A CN110439292A (en) | 2019-08-21 | 2019-08-21 | Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss |
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| CN201910773207.5A CN110439292A (en) | 2019-08-21 | 2019-08-21 | Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss |
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| CN110863568A (en) * | 2019-11-22 | 2020-03-06 | 中国十七冶集团有限公司 | Hoisting construction method for large-span steel structure roof in complex environment |
| CN112431416A (en) * | 2020-12-22 | 2021-03-02 | 中建一局集团建设发展有限公司 | Workshop building method capable of effectively shortening construction period and workshop built by same |
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| CN110863568A (en) * | 2019-11-22 | 2020-03-06 | 中国十七冶集团有限公司 | Hoisting construction method for large-span steel structure roof in complex environment |
| CN112431416A (en) * | 2020-12-22 | 2021-03-02 | 中建一局集团建设发展有限公司 | Workshop building method capable of effectively shortening construction period and workshop built by same |
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Application publication date: 20191112 |