CN109441127A - A kind of virtual emulation in-site installation construction method across overhanging steel structure greatly - Google Patents
A kind of virtual emulation in-site installation construction method across overhanging steel structure greatly Download PDFInfo
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- CN109441127A CN109441127A CN201811476388.7A CN201811476388A CN109441127A CN 109441127 A CN109441127 A CN 109441127A CN 201811476388 A CN201811476388 A CN 201811476388A CN 109441127 A CN109441127 A CN 109441127A
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- support frame
- construction
- truss
- bracket
- moulding bed
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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
Abstract
The invention discloses a kind of virtual emulation in-site installation construction methods across overhanging steel structure greatly, comprising the following steps: S1: early-stage preparations；S2:3D visualizes BIM model；S3: construction virtual emulation；S4: construction horizontal layout；S5: bracket repetition measurement；S6: vertical moulding bed production and moulding bed are assembled；S7: installation on ground；S8: support frame production and installation；S9: formal lifting；S10: welding；S11: support frame unloading；The safety of site operation is improved so that work progress visualizes based on BIM technology Virtual Construction；Comprehensively consider virtually with the difference in practice of construction, problems in construction is found by Virtual Construction as early as possible, and to being adjusted in time the problem of reflecting；Based on 3D Visualization Model and work progress animation, efficiently quickly finishes and confided a technological secret, on-site personnel is made sufficiently to know arrangement and method for construction, examination is hung the more traditional engineering method of number and is significantly reduced when site operation, installation process is smooth, reliable construction quality, quick low cost.
Description
Technical field
The present invention relates to construction steel structure technical field of construction, specially a kind of virtual emulation scene across overhanging steel structure greatly
Construction method of installation.
Background technique
Steel building have intensity it is high, from heavy and light, anti-seismic performance is good, foundation expense is few, building usable floor area is big,
The advantages that architecture quality is high, influenced suitable for industrialization and standardized production, not by construction seasons, comprehensive cost low, referred to as
The representative of green building.The application of steel construction has a great development, no matter all considerably beyond mistake quantitatively or in quality
It goes.All reached higher level in technical aspects such as design, manufacture and installations, grasped various complex buildings design and
Construction technology, constructed throughout the country many huge and complicated steel-structure factory building, large-span steel knot
Structure civil buildings and railroad bridge etc..
Status based on building trade, designing institute there is a problem that one very big in Steel Structural Design --- it " can build
The property made ", in other words, i.e., the Construction of Steel Structure figure of designing institute can not guiding construction unit field fabrication installation, generally require
Unit in charge of construction carries out Deepen Design, and component detail drawing (for instructing processing) and component layout drawing are (for instructing scene positioning to spell out
Dress).The visualization of construction is low, and safety is poor, and site operation is the first time field practice to arrangement and method for construction, scene
The arrangement of mechanical equipment and the placement location of material may have the possibility interfered with each other, simultaneously because the positions such as support frame are
It is determined based entirely on theory, precision, which not can guarantee, to make troubles for subsequent construction.In addition, based on traditional construction work
The fermentation such as the selection of method, the selection of suspension centre quantity and position and lifting machinery still have deficiency, site operation go to toward because
Manifestation mode is not intuitive, and data are insufficient, and keeps working efficiency low, and the problems in work progress adjustment timeliness is poor,
Examination is hung often when execute-in-place, and the construction period is caused to extend, and when installation is more troublesome, construction it is of poor quality, cost is high.
Summary of the invention
The purpose of the present invention is to provide a kind of virtual emulation in-site installation construction methods across overhanging steel structure greatly, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme: a kind of virtual emulation scene across overhanging steel structure greatly
Construction method of installation, comprising the following steps:
S1: early-stage preparations, personnel and device configuration are complete, get out construction site；
S2:3D visualizes BIM model, establishes 3D visualization BIM model with BIM technology；
S3: virtual emulation of constructing carries out construction virtual emulation after model foundation, analyzes virtual emulation result, satisfaction is applied
When work demand, judge whether scheme is optimal case, is adjusted when not being optimal case, be unsatisfactory for being adjusted when construction,
It chooses the best alternatives；
S4: construction horizontal layout plans moulding bed and crane placement location according to fixed place hardening range, it is ensured that practical
There are enough working spaces and noiseless to other work surfaces when construction is continuous and steel construction lifts by crane, while being based on construction site
Floor plan plans material transportation vehicle travelling route, it is ensured that big machinery smoothly passes in and out field；
S5: bracket repetition measurement plans the position of setting total station and prism in virtual emulation operation platform, to the bracket on steel column
Carry out repetition measurement；
S6: the production of vertical moulding bed and moulding bed are assembled, and vertical moulding bed list Pin support frame at the scene complete by welding processing, then with centre
Connecting rod is assembled into whole moulding bed, and vertical moulding bed assembling is determined according to the facade form and node spacing of truss, vertical moulding bed assembling
When pay special attention to the relative level height that moulding bed supports bracket up and down, it is to use assembling vertical moulding bed that truss, which carries out pre- arch camber,
The mode that veneer is padded on support bracket face carries out pre- arch camber；
S7: installation on ground, the specific steps are as follows:
A: the position of control moulding bed, support bracket and the scattered rod piece of steel construction, and its horizontal position is precisely controlled with precision level
It sets and elevation；
B: web member is fixed using plain bolt installation, and rod piece, which fits like a glove, to be started to weld after docking, according to from centre to both sides
Sequence is symmetrically welded to reduce thermal stress deformation, after the completion of welding, checks truss outer dimension with total station, and make a record；
S8: support frame production and installation, the specific steps are as follows:
A: basic precise positioning unwrapping wire and absolute altitude repetition measurement, according to repetition measurement ground elevation value and truss support bracket absolute altitude value with determination
The theoretical level of support frame not considered in the case of deformation and arch camber；
B: calculating support frame predeformation amount and truss springing quantum using BIM technology, then the two superposition finally show that support frame needs to increase
Increase angle value；
C: support frame it is accurate in place, to guarantee the uniaxial force of support frame and reducing truss construction deformation, thus support frame just
Position be ground must horizontal and truss center line must be overlapped with support frame center line and positioned at node location, support frame is processed and is adopted
It is completed with transverse direction in ground welding；
S9: formal lifting, the specific steps are as follows:
A: the simulation analysis of hoisting point position determines lifting elements when carrying out the lifting of large span plane and space truss structure
Lifting point；
B: on-site hoisting, every preparation is ready to complete and weather condition meets and starts examination after lifting requirements and hang, and balances suspension centre
It is connected by bottle gouard moved by hands with hoist lifting hook, then pause, which rises, observes whether entire component balances and whether is lifting lug wirerope
Be able to satisfy requirement for bearing capacity, and whether balanced around one week observation crane of truck crane, examination hang meet lifting requirements after can continue to mention
It rises and starts formal lifting, truss support pedestal is promoted to slightly above steel column bracket upper limit plate elevation location, then by complete
4 traction ropes of instrument of standing observation while control are so that truss center line is aligned with bracket center line, while being made truss center line and being held
Weight support frame center line alignment, to ensure that slowly decline keeps truss flat after support frame axial compression, end plate are aligned with truss end line
It occupies stably and falls on bracket and support frame；
C: observation confirmation truss horizontal position and verticality are met the requirements again after intermediate steel girder erection, then connect bracket
Carrier setting bolt is simultaneously tightened, and finally slowly loose hook and is observed the deformation of truss, support frame and ground again, is answered if any excessive deformation
Stop loose hook immediately and truss in place will have been lifted to hang go back to ground, reaffirms operation people after support frame and ground are met the requirements
Member is promoted to lifting lug position of winding up using tower crane cage and removes lifting buckle；
S10: welding examines element numeral simultaneously to confirm the component before welding, and when welding first welds lower flange and welds top flange again；
S11: support frame unloading, the specific steps are as follows:
A: overall structure is carried out to truss and its intermediate connecting rod before unloading and is inspected for acceptance, original record is measured.In moulding bed when unloading
One piece of observation board is welded as label in top, is adjacent to girder steel top flange plate with label steel plate；
B: when unloading with gas cutting the H profile steel beam at the top of support frame from web from cut open, allow superstructure slowly freely to decline, together
When observe marking plate slippage, Simultaneous Monitoring fall, it is ensured that symmetrical fulcrum fall is identical；
C: the synchronous unloading of support frame starts to unload at noon, is divided into 10 times to both ends cutting since centre and is cut, completed
24 hours are parked after unloading to building stress release；
D carries out complete monitoring in entire uninstall process, to support frame, it is ensured that reaches design value after structural load load:
E: displacement monitoring, in uninstall process, every unloading is primary, is seen using observation board at the top of moulding bed to building deformation
It surveys, and records data and analyzed.
Preferably, utilize during the step S3 Virtual Construction STAAD.Pro V8i software to entire hoisting process into
Row stress analysis completes hoisting process construction simulation video using CINEMA 4D software development, and soft using video editing in advance
Emphasis data flow is illustrated by part.
Preferably, the repetition measurement content in the step S5 include bracket horizontal position, elevation and bracket between it is opposite
Position, height difference.
Preferably, the height difference for supporting bracket up and down of adjacent two Pin moulding bed when vertical support jig assembles in the step S6
For 4500/1000=4.5mm.
Preferably, when the step S9 on-site hoisting, component is sling terrain clearance less than 300mm by crane.
Preferably, welding material is checked before being welded in the step S10；Cleaning scene；It should be protected in welding process
Hold interlayer temperature；Examine packing material；Backing weld seam appearance；Clear up welding bead；It is welded by the welding procedure of approval；It is removed after welding
Welding slag and splash；Weld appearance；Undercut；Overlap；Crackle and arc crater；Cooling velocity.
Preferably, noon temperature highest when noon unloads when support frame synchronizes unloading in the step S11, deflection is most
Greatly, when cutting, gas cutting 2~5mm every time.
Preferably, complete monitoring is carried out using total station in the step S11 uninstall process.
Compared with prior art, the beneficial effects of the present invention are:
1, it is based on BIM technology Virtual Construction, so that work progress visualizes, improves the safety of site operation；
2, comprehensively considered virtually with the difference in practice of construction, problems in construction has been found by Virtual Construction as early as possible, and right
The problem of reflecting adjusts in time；
3, it is based on 3D Visualization Model and work progress animation, has efficiently quickly finished and has confided a technological secret, made on-site personnel
Sufficiently know arrangement and method for construction, examination is hung the more traditional engineering method of number and significantly reduced when site operation, and installation process is smooth, and construction quality can
It leans on, low cost convenient, fast for construction.
Detailed description of the invention
Fig. 1 is the process flow chart of one kind virtual emulation in-site installation construction method across overhanging steel structure greatly of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: one kind virtual emulation in-site installation across overhanging steel structure greatly is applied
Work method, comprising the following steps:
S1: early-stage preparations, personnel and device configuration are complete, get out construction site；
S2:3D visualizes BIM model, establishes 3D visualization BIM model with BIM technology；
S3: virtual emulation of constructing carries out construction virtual emulation after model foundation, analyzes virtual emulation result, satisfaction is applied
When work demand, judge whether scheme is optimal case, is adjusted when not being optimal case, be unsatisfactory for being adjusted when construction,
It chooses the best alternatives；
S4: construction horizontal layout plans moulding bed and crane placement location according to fixed place hardening range, it is ensured that practical
There are enough working spaces and noiseless to other work surfaces when construction is continuous and steel construction lifts by crane, while being based on construction site
Floor plan plans material transportation vehicle travelling route, it is ensured that big machinery smoothly passes in and out field；
S5: bracket repetition measurement plans the position of setting total station and prism in virtual emulation operation platform, to the bracket on steel column
Carry out repetition measurement；
S6: the production of vertical moulding bed and moulding bed are assembled, and vertical moulding bed list Pin support frame at the scene complete by welding processing, then with centre
Connecting rod is assembled into whole moulding bed, and vertical moulding bed assembling is determined according to the facade form and node spacing of truss, vertical moulding bed assembling
When pay special attention to the relative level height that moulding bed supports bracket up and down, it is to use assembling vertical moulding bed that truss, which carries out pre- arch camber,
The mode that veneer is padded on support bracket face carries out pre- arch camber；
S7: installation on ground, the specific steps are as follows:
A: the position of control moulding bed, support bracket and the scattered rod piece of steel construction, and its horizontal position is precisely controlled with precision level
It sets and elevation；
B: web member is fixed using plain bolt installation, and rod piece, which fits like a glove, to be started to weld after docking, according to from centre to both sides
Sequence is symmetrically welded to reduce thermal stress deformation, after the completion of welding, checks truss outer dimension with total station, and make a record；
S8: support frame production and installation, the specific steps are as follows:
A: basic precise positioning unwrapping wire and absolute altitude repetition measurement, according to repetition measurement ground elevation value and truss support bracket absolute altitude value with determination
The theoretical level of support frame not considered in the case of deformation and arch camber；
B: calculating support frame predeformation amount and truss springing quantum using BIM technology, then the two superposition finally show that support frame needs to increase
Increase angle value；
C: support frame it is accurate in place, to guarantee the uniaxial force of support frame and reducing truss construction deformation, thus support frame just
Position be ground must horizontal and truss center line must be overlapped with support frame center line and positioned at node location, support frame is processed and is adopted
It is completed with transverse direction in ground welding；
S9: formal lifting, the specific steps are as follows:
A: the simulation analysis of hoisting point position determines lifting elements when carrying out the lifting of large span plane and space truss structure
Lifting point；
B: on-site hoisting, every preparation is ready to complete and weather condition meets and starts examination after lifting requirements and hang, and balances suspension centre
It is connected by bottle gouard moved by hands with hoist lifting hook, then pause, which rises, observes whether entire component balances and whether is lifting lug wirerope
Be able to satisfy requirement for bearing capacity, and whether balanced around one week observation crane of truck crane, examination hang meet lifting requirements after can continue to mention
It rises and starts formal lifting, truss support pedestal is promoted to slightly above steel column bracket upper limit plate elevation location, then by complete
4 traction ropes of instrument of standing observation while control are so that truss center line is aligned with bracket center line, while being made truss center line and being held
Weight support frame center line alignment, to ensure that slowly decline keeps truss flat after support frame axial compression, end plate are aligned with truss end line
It occupies stably and falls on bracket and support frame；
C: observation confirmation truss horizontal position and verticality are met the requirements again after intermediate steel girder erection, then connect bracket
Carrier setting bolt is simultaneously tightened, and finally slowly loose hook and is observed the deformation of truss, support frame and ground again, is answered if any excessive deformation
Stop loose hook immediately and truss in place will have been lifted to hang go back to ground, reaffirms operation people after support frame and ground are met the requirements
Member is promoted to lifting lug position of winding up using tower crane cage and removes lifting buckle；
S10: welding examines element numeral simultaneously to confirm the component before welding, and when welding first welds lower flange and welds top flange again；
S11: support frame unloading, the specific steps are as follows:
A: overall structure is carried out to truss and its intermediate connecting rod before unloading and is inspected for acceptance, original record is measured.In moulding bed when unloading
One piece of observation board is welded as label in top, is adjacent to girder steel top flange plate with label steel plate；
B: when unloading with gas cutting the H profile steel beam at the top of support frame from web from cut open, allow superstructure slowly freely to decline, together
When observe marking plate slippage, Simultaneous Monitoring fall, it is ensured that symmetrical fulcrum fall is identical；
C: the synchronous unloading of support frame starts to unload at noon, is divided into 10 times to both ends cutting since centre and is cut, completed
24 hours are parked after unloading to building stress release；
D carries out complete monitoring in entire uninstall process, to support frame, it is ensured that reaches design value after structural load load:
E: displacement monitoring, in uninstall process, every unloading is primary, is seen using observation board at the top of moulding bed to building deformation
It surveys, and records data and analyzed.
Stress point is carried out to entire hoisting process using STAAD.Pro V8i software during the step S3 Virtual Construction
Analysis completes hoisting process construction simulation video using CINEMA 4D software development, and utilizes Video editing software by emphasis in advance
Data flow is illustrated, and the repetition measurement content in the step S5 includes the phase between horizontal position, elevation and the bracket of bracket
To position, height difference, the height difference for supporting bracket up and down of adjacent two Pin moulding bed is when vertical support jig assembles in the step S6
4500/1000=4.5mm, when the step S9 on-site hoisting, component is sling terrain clearance less than 300mm, the step by crane
Welding material is checked before being welded in S10；Cleaning scene；Interlayer temperature should be kept in welding process；Examine packing material；
Backing weld seam appearance；Clear up welding bead；It is welded by the welding procedure of approval；Welding slag and splash are removed after welding；Weld appearance；It stings
Side；Overlap；Crackle and arc crater；Cooling velocity, noon temperature is most when noon unloads when support frame synchronous unloading in the step S11
Height, deflection are maximum, and when cutting, gas cutting 2~5mm every time is carried out in the step S11 uninstall process complete using total station
Range monitoring.
In summary: the present invention is modeled steel structure member by BIM technology, is combined with numerical control manufacture, realize from
Model is digitized to component overall process, is refined, and reduces the waste in work progress.Meanwhile it being sticked when component factory
" two dimensional code " relies on " two dimensional code " that model has been carried out data with actual components and docks, and can effectively manage component in transport, peace
Data information during dress.In the lifting stage of steel member, carry out construction simulation using BIM technology, can more accurately into
The positioning of row component.It can really realize that " Deepen Design, factory process, material purchases, on-site hoisting " is full-range using BIM technology
Information system management, it is ensured that the objectives such as safety, quality, duration, environmental protection of engineering construction.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of virtual emulation in-site installation construction method across overhanging steel structure greatly, it is characterised in that: the following steps are included:
S1: early-stage preparations, personnel and device configuration are complete, get out construction site；
S2:3D visualizes BIM model, establishes 3D visualization BIM model with BIM technology；
S3: virtual emulation of constructing carries out construction virtual emulation after model foundation, analyzes virtual emulation result, satisfaction is applied
When work demand, judge whether scheme is optimal case, is adjusted when not being optimal case, be unsatisfactory for being adjusted when construction,
It chooses the best alternatives；
S4: construction horizontal layout plans moulding bed and crane placement location according to fixed place hardening range, it is ensured that practical
There are enough working spaces and noiseless to other work surfaces when construction is continuous and steel construction lifts by crane, while being based on construction site
Floor plan plans material transportation vehicle travelling route, it is ensured that big machinery smoothly passes in and out field；
S5: bracket repetition measurement plans the position of setting total station and prism in virtual emulation operation platform, to the bracket on steel column
Carry out repetition measurement；
S6: the production of vertical moulding bed and moulding bed are assembled, and vertical moulding bed list Pin support frame at the scene complete by welding processing, then with centre
Connecting rod is assembled into whole moulding bed, and vertical moulding bed assembling is determined according to the facade form and node spacing of truss, vertical moulding bed assembling
When pay special attention to the relative level height that moulding bed supports bracket up and down, it is to use assembling vertical moulding bed that truss, which carries out pre- arch camber,
The mode that veneer is padded on support bracket face carries out pre- arch camber；
S7: installation on ground, the specific steps are as follows:
A: the position of control moulding bed, support bracket and the scattered rod piece of steel construction, and its horizontal position is precisely controlled with precision level
It sets and elevation；
B: web member is fixed using plain bolt installation, and rod piece, which fits like a glove, to be started to weld after docking, according to from centre to both sides
Sequence is symmetrically welded to reduce thermal stress deformation, after the completion of welding, checks truss outer dimension with total station, and make a record；
S8: support frame production and installation, the specific steps are as follows:
A: basic precise positioning unwrapping wire and absolute altitude repetition measurement, according to repetition measurement ground elevation value and truss support bracket absolute altitude value with determination
The theoretical level of support frame not considered in the case of deformation and arch camber；
B: calculating support frame predeformation amount and truss springing quantum using BIM technology, then the two superposition finally show that support frame needs to increase
Increase angle value；
C: support frame it is accurate in place, to guarantee the uniaxial force of support frame and reducing truss construction deformation, thus support frame just
Position be ground must horizontal and truss center line must be overlapped with support frame center line and positioned at node location, support frame is processed and is adopted
It is completed with transverse direction in ground welding；
S9: formal lifting, the specific steps are as follows:
A: the simulation analysis of hoisting point position determines lifting elements when carrying out the lifting of large span plane and space truss structure
Lifting point；
B: on-site hoisting, every preparation is ready to complete and weather condition meets and starts examination after lifting requirements and hang, and balances suspension centre
It is connected by bottle gouard moved by hands with hoist lifting hook, then pause, which rises, observes whether entire component balances and whether is lifting lug wirerope
Be able to satisfy requirement for bearing capacity, and whether balanced around one week observation crane of truck crane, examination hang meet lifting requirements after can continue to mention
It rises and starts formal lifting, truss support pedestal is promoted to slightly above steel column bracket upper limit plate elevation location, then by complete
4 traction ropes of instrument of standing observation while control are so that truss center line is aligned with bracket center line, while being made truss center line and being held
Weight support frame center line alignment, to ensure that slowly decline keeps truss flat after support frame axial compression, end plate are aligned with truss end line
It occupies stably and falls on bracket and support frame；
C: observation confirmation truss horizontal position and verticality are met the requirements again after intermediate steel girder erection, then connect bracket
Carrier setting bolt is simultaneously tightened, and finally slowly loose hook and is observed the deformation of truss, support frame and ground again, is answered if any excessive deformation
Stop loose hook immediately and truss in place will have been lifted to hang go back to ground, reaffirms operation people after support frame and ground are met the requirements
Member is promoted to lifting lug position of winding up using tower crane cage and removes lifting buckle；
S10: welding examines element numeral simultaneously to confirm the component before welding, and when welding first welds lower flange and welds top flange again；
S11: support frame unloading, the specific steps are as follows:
A: carrying out overall structure to truss and its intermediate connecting rod before unloading and inspect for acceptance, and measures original record, in moulding bed when unloading
One piece of observation board is welded as label in top, is adjacent to girder steel top flange plate with label steel plate；
B: when unloading with gas cutting the H profile steel beam at the top of support frame from web from cut open, allow superstructure slowly freely to decline, together
When observe marking plate slippage, Simultaneous Monitoring fall, it is ensured that symmetrical fulcrum fall is identical；
C: the synchronous unloading of support frame starts to unload at noon, is divided into 10 times to both ends cutting since centre and is cut, completed
24 hours are parked after unloading to building stress release；
D carries out complete monitoring in entire uninstall process, to support frame, it is ensured that reaches design value after structural load load:
E: displacement monitoring, in uninstall process, every unloading is primary, is seen using observation board at the top of moulding bed to building deformation
It surveys, and records data and analyzed.
2. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: stress analysis, benefit are carried out to entire hoisting process using STAAD.Pro V8i software during the step S3 Virtual Construction
Hoisting process construction simulation video is completed with CINEMA 4D software development, and utilizes Video editing software by emphasis data in advance
Process is illustrated.
3. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: the repetition measurement content in the step S5 include relative position between horizontal position, elevation and the bracket of bracket, height difference.
4. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: when vertical support jig assembles in the step S6 height difference for supporting bracket up and down of adjacent two Pin moulding bed be 4500/1000=
4.5mm。
5. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: when the step S9 on-site hoisting, component is sling terrain clearance less than 300mm by crane.
6. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: welding material is checked before being welded in the step S10；Cleaning scene；Interlayer temperature should be kept in welding process；Inspection
Test packing material；Backing weld seam appearance；Clear up welding bead；It is welded by the welding procedure of approval；Welding slag and splash are removed after welding；
Weld appearance；Undercut；Overlap；Crackle and arc crater；Cooling velocity.
7. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: noon temperature highest when noon unloads when the synchronous unloading of support frame in the step S11, deflection is maximum, when cutting, gas cutting
2~5mm every time.
8. one kind virtual emulation in-site installation construction method across overhanging steel structure greatly according to claim 1, feature exist
In: complete monitoring is carried out using total station in the step S11 uninstall process.
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| CN110258803A (en) * | 2019-06-21 | 2019-09-20 | 南通大学 | A kind of dome steel structure construction method of installation based on BIM technology |
| CN110781543A (en) * | 2019-10-15 | 2020-02-11 | 北京城建集团有限责任公司 | Large-span steel beam installation precision control construction method |
| CN111364615A (en) * | 2020-03-16 | 2020-07-03 | 山西四建集团有限公司 | Mounting method of special-shaped and curved surface suspension type steel structure system |
| CN111648606A (en) * | 2020-06-10 | 2020-09-11 | 深圳市市政工程总公司 | Construction method for high-altitude cantilever splicing of steel structure |
| CN112035936A (en) * | 2020-09-07 | 2020-12-04 | 中国十七冶集团有限公司 | Steel truss lifting construction method based on BIM |
| CN112508339A (en) * | 2020-11-10 | 2021-03-16 | 浙江鑫润工程管理有限公司 | Construction quality safety risk management method, system, device and storage medium |
| CN113047447A (en) * | 2021-05-17 | 2021-06-29 | 中建八局第四建设有限公司 | Split-level steel structure building semi-reverse construction method |
| CN113250468A (en) * | 2021-06-22 | 2021-08-13 | 中建八局第二建设有限公司 | Construction method and construction structure of symmetrical cantilever steel truss of high-rise building |
| CN113431340A (en) * | 2021-07-22 | 2021-09-24 | 中建八局第二建设有限公司 | Construction method of rose-shaped special-shaped space grid steel structure |
| CN113513173A (en) * | 2021-04-02 | 2021-10-19 | 上海二十冶建设有限公司 | Accumulated continuous pre-assembly construction method for large deformed steel structure |
| CN114809652A (en) * | 2022-05-20 | 2022-07-29 | 中国建筑第二工程局有限公司 | BIM-based roof arc truss positioning and hoisting method |
| CN115162747A (en) * | 2021-04-07 | 2022-10-11 | 中铝国际(天津)建设有限公司 | Jig frame for loading and unloading large steel structure and unloading method |
| CN116644504A (en) * | 2023-07-26 | 2023-08-25 | 中建安装集团西安建设投资有限公司 | Precise docking method and system for ultra-high large-span steel structure based on BIM technology |
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| CN110056197A (en) * | 2019-04-30 | 2019-07-26 | 中国十七冶集团有限公司 | A kind of overhanging three-dimension curved surface steel cage canopy integral hoisting construction method |
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| CN110781543A (en) * | 2019-10-15 | 2020-02-11 | 北京城建集团有限责任公司 | Large-span steel beam installation precision control construction method |
| CN111364615A (en) * | 2020-03-16 | 2020-07-03 | 山西四建集团有限公司 | Mounting method of special-shaped and curved surface suspension type steel structure system |
| CN111648606A (en) * | 2020-06-10 | 2020-09-11 | 深圳市市政工程总公司 | Construction method for high-altitude cantilever splicing of steel structure |
| CN112035936A (en) * | 2020-09-07 | 2020-12-04 | 中国十七冶集团有限公司 | Steel truss lifting construction method based on BIM |
| CN112508339A (en) * | 2020-11-10 | 2021-03-16 | 浙江鑫润工程管理有限公司 | Construction quality safety risk management method, system, device and storage medium |
| CN112508339B (en) * | 2020-11-10 | 2023-11-10 | 浙江鑫润工程管理有限公司 | Construction quality safety risk management method, system, device and storage medium |
| CN113513173A (en) * | 2021-04-02 | 2021-10-19 | 上海二十冶建设有限公司 | Accumulated continuous pre-assembly construction method for large deformed steel structure |
| CN115162747A (en) * | 2021-04-07 | 2022-10-11 | 中铝国际(天津)建设有限公司 | Jig frame for loading and unloading large steel structure and unloading method |
| CN113047447A (en) * | 2021-05-17 | 2021-06-29 | 中建八局第四建设有限公司 | Split-level steel structure building semi-reverse construction method |
| CN113250468A (en) * | 2021-06-22 | 2021-08-13 | 中建八局第二建设有限公司 | Construction method and construction structure of symmetrical cantilever steel truss of high-rise building |
| CN113431340B (en) * | 2021-07-22 | 2022-08-30 | 中建八局第二建设有限公司 | Construction method of rose-shaped special-shaped space grid steel structure |
| CN113431340A (en) * | 2021-07-22 | 2021-09-24 | 中建八局第二建设有限公司 | Construction method of rose-shaped special-shaped space grid steel structure |
| CN114809652A (en) * | 2022-05-20 | 2022-07-29 | 中国建筑第二工程局有限公司 | BIM-based roof arc truss positioning and hoisting method |
| CN114809652B (en) * | 2022-05-20 | 2023-03-31 | 中国建筑第二工程局有限公司 | BIM-based roof arc truss positioning and hoisting method |
| CN116644504A (en) * | 2023-07-26 | 2023-08-25 | 中建安装集团西安建设投资有限公司 | Precise docking method and system for ultra-high large-span steel structure based on BIM technology |
| CN116644504B (en) * | 2023-07-26 | 2023-10-31 | 中建安装集团西安建设投资有限公司 | Precise docking method and system for ultra-high large-span steel structure based on BIM technology |
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