CN110909399A - Virtual pre-assembly method for steel structure - Google Patents
Virtual pre-assembly method for steel structure Download PDFInfo
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- CN110909399A CN110909399A CN201910982198.0A CN201910982198A CN110909399A CN 110909399 A CN110909399 A CN 110909399A CN 201910982198 A CN201910982198 A CN 201910982198A CN 110909399 A CN110909399 A CN 110909399A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/20—Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2219/00—Indexing scheme for manipulating 3D models or images for computer graphics
- G06T2219/20—Indexing scheme for editing of 3D models
- G06T2219/2008—Assembling, disassembling
Abstract
The invention discloses a virtual pre-assembly method of a steel structure, which comprises the following steps: A. building a BIM dynamic parameter model of the railway steel bridge according to the sequence of a member library, construction member drawing parameters, a framework wire frame and members; B. adjusting and optimizing the established model; C. the invention introduces the rechecked model information of the steel member entity into the three-dimensional scanning software, produces the BIM dynamic parameter model based on the BIM technology, can complete the pre-assembly process in a computer through the three-dimensional scanning software to replace the pre-assembly process of the entity member, thereby leading the assembly precision to be higher, spending less manpower and material resources, simultaneously shortening the manufacturing period and reducing the production cost, and 3D printing the generated model and carrying out a plurality of data tests on the model, thereby avoiding the occurrence of unexpected phenomena caused by the self-problems of the steel structure when people assemble the steel structure.
Description
Technical Field
The invention relates to the technical field of steel structures, in particular to a virtual pre-assembly method of a steel structure.
Background
The steel structure building has the advantages of high strength, light dead weight, good earthquake resistance, low foundation cost, large building use area, high building quality, suitability for industrialized and standardized production, no influence of construction seasons, low comprehensive manufacturing cost and the like, is called as a representative of a green building, achieves higher level in the aspects of design, manufacture, installation and other technologies, masters the design and construction technology of various complex buildings, has built a plurality of steel structure plants with large scale and complex structures, large-span steel structure civil buildings, railway bridges and the like all over the country, generally finishes the components (including enlarged components) manufactured in factories, transports the components to construction sites for installation and assembly, generally needs to be pre-assembled in the factories to check the assemblability of the structures, pre-assembled in the factories, the method is characterized in that steel members such as large-scale columns, beams, trusses and supports manufactured in a segmented mode and a multi-layer steel frame structure, particularly a large-scale steel structure connected by high-strength bolts, a steel shell structure manufactured in a segmented mode and supplied with goods, are integrally or temporarily assembled in a segmented and layered mode before leaving a factory, but solid pre-assembly not only needs to occupy the site and equipment of a factory, but also needs to be provided with a jig frame, a large amount of manpower and material resources are consumed, the cost is high, and therefore the method for virtual pre-assembly of the steel structure is provided.
Disclosure of Invention
The invention aims to provide a virtual pre-assembly method of a steel structure, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a virtual pre-assembly method of a steel structure comprises the following steps:
A. building a BIM dynamic parameter model of the railway steel bridge according to the sequence of a member library, construction member drawing parameters, a framework wire frame and members;
B. adjusting and optimizing the established model;
C. importing the rechecked model information of the steel member entity into three-dimensional scanning software, and carrying out three-dimensional space operation on the model information through the three-dimensional scanning software to realize pre-assembly;
D. printing the assembled model by using a 3D printer;
E. and carrying out a plurality of data tests on the printed assembly model by adopting a testing mechanism.
Preferably, in the step a, the drawing parameters of the building construction member are at least four of the size, specification, elevation, connection node, connection hole, connection piece, pre-camber or angle of the member.
Preferably, in the step B, the BIM dynamic parameter model and the physical model are checked and compared, the steel structure parameter is adjusted according to the check and comparison result, the central position coordinates of the connection node in the pre-assembly effect graph are obtained in the three-dimensional coordinate system, then error analysis is performed, the contact ratio between the BIM dynamic parameter model and the physical model is checked, if the contact ratio between the BIM dynamic parameter model and the physical model meets the requirement, the steel structure parameter is judged to reach the standard, and if the deviation between the two models exceeds the relevant requirement, the steel structure parameter is judged to need to be modified.
Preferably, in the step E, the test items are at least three of pressure resistance, displacement, sedimentation, wind resistance, temperature resistance, corrosion resistance and wear resistance of the steel structure.
Preferably, the method further comprises the step of steel structure machining precision analysis, and the evaluation indexes of the steel structure for the machining precision analysis are at least four of the height difference of the main beams on the two sides of the splicing seam, the distance between the cross beams, the total length of the trial assembly, the central lines of the two main beams, the lateral bending, the diagonal difference of the cross section, the horizontal diagonal difference, the verticality of the main beam port, the vertical curve line difference or the passing rate of the high-strength bolt hole gauge.
Compared with the prior art, the invention has the following beneficial effects:
the BIM dynamic parameter model is produced based on the BIM technology, the pre-assembly process can be completed in a computer through three-dimensional scanning software to replace the pre-assembly process of an entity component, so that the assembly precision is higher, the labor and material resources are less spent, the manufacturing period can be shortened, the production cost is reduced, the generated model is printed out in a 3D mode, and a plurality of data tests are carried out on the model, so that the phenomenon that accidents occur due to the self-problem of a steel structure when people assemble the steel structure is avoided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a virtual pre-assembly method of a steel structure comprises the following steps:
A. building a BIM dynamic parameter model of the railway steel bridge according to the sequence of a member library, construction member drawing parameters, a framework wire frame and members;
B. adjusting and optimizing the established model;
C. importing the rechecked model information of the steel member entity into three-dimensional scanning software, and carrying out three-dimensional space operation on the model information through the three-dimensional scanning software to realize pre-assembly;
D. printing the assembled model by using a 3D printer;
E. and carrying out a plurality of data tests on the printed assembly model by adopting a testing mechanism.
BIM dynamic parameter model based on BIM technique production, can accomplish the process of assembling in advance through three-dimensional scanning software in the computer to replace the process of assembling in advance of entity component, thereby make the precision of assembling higher, it is still less to spend manpower, material resources, and advancing simultaneously also can shorten the preparation cycle, reduction in production cost, and carry out 3D with the model that generates and print out, and carry out multinomial data test to it, thereby avoid appearing people and appear unexpected phenomenon when assembling the steel construction because of steel construction self problem and take place.
In the step A, drawing parameters of the building construction member are the size, elevation, specification, pre-camber and angle of the member.
And step B, checking and comparing the BIM dynamic parameter model and the physical model, adjusting steel structure parameters according to the checking and comparing result, acquiring the central position coordinates of the connecting nodes in the pre-assembly effect graph in a three-dimensional coordinate system, performing error analysis, checking the contact ratio between the BIM dynamic parameter model and the physical model, judging that the steel structure parameters reach the standard if the contact ratio between the BIM dynamic parameter model and the physical model meets the requirement, and judging that the steel structure parameters need to be modified if the deviation between the two models exceeds the relevant requirement.
And in the step E, the test items are four items of compression resistance, displacement, corrosion resistance and wear resistance of the steel structure.
The method further comprises the step of analyzing the machining precision of the steel structure, and the evaluation indexes of the steel structure for analyzing the machining precision are the height difference of the main beams on the two sides of the splicing seam, the distance between the cross beams, the full length of trial assembly, the horizontal diagonal difference, the verticality of the main beam port and the vertical curve line difference.
Example two:
a virtual pre-assembly method of a steel structure comprises the following steps:
A. building a BIM dynamic parameter model of the railway steel bridge according to the sequence of a member library, construction member drawing parameters, a framework wire frame and members;
B. adjusting and optimizing the established model;
C. importing the rechecked model information of the steel member entity into three-dimensional scanning software, and carrying out three-dimensional space operation on the model information through the three-dimensional scanning software to realize pre-assembly;
D. printing the assembled model by using a 3D printer;
E. and carrying out a plurality of data tests on the printed assembly model by adopting a testing mechanism.
BIM dynamic parameter model based on BIM technique production, can accomplish the process of assembling in advance through three-dimensional scanning software in the computer to replace the process of assembling in advance of entity component, thereby make the precision of assembling higher, it is still less to spend manpower, material resources, and advancing simultaneously also can shorten the preparation cycle, reduction in production cost, and carry out 3D with the model that generates and print out, and carry out multinomial data test to it, thereby avoid appearing people and appear unexpected phenomenon when assembling the steel construction because of steel construction self problem and take place.
In the step A, the drawing parameters of the building construction member are the size, elevation, connecting nodes, connecting holes and connecting pieces of the member.
And step B, checking and comparing the BIM dynamic parameter model and the physical model, adjusting steel structure parameters according to the checking and comparing result, acquiring the central position coordinates of the connecting nodes in the pre-assembly effect graph in a three-dimensional coordinate system, performing error analysis, checking the contact ratio between the BIM dynamic parameter model and the physical model, judging that the steel structure parameters reach the standard if the contact ratio between the BIM dynamic parameter model and the physical model meets the requirement, and judging that the steel structure parameters need to be modified if the deviation between the two models exceeds the relevant requirement.
And in the step E, the test items are four items of settlement, wind resistance, temperature resistance and wear resistance of the steel structure.
The method also comprises the step of analyzing the machining precision of the steel structure, and the evaluation indexes of the steel structure for analyzing the machining precision are the trial assembly total length, the central lines of the two main beams, the lateral bending, the diagonal difference of the cross sections and the passing rate of the high-strength bolt hole gauge.
During the use, produce BIM dynamic parameter model based on BIM technique, can accomplish the process of assembling in advance through three-dimensional scanning software in the computer to replace the process of assembling in advance of entity component, thereby make the precision of assembling higher, it is still less to spend manpower, material resources, and the while also can shorten the preparation cycle, reduction in production cost, and carry out 3D with the model that generates and print out, and carry out multinomial data test to it, thereby avoid appearing people and appear unexpected phenomenon when assembling the steel construction because of steel construction self problem and taking place.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A virtual pre-assembly method of a steel structure is characterized by comprising the following steps: the method comprises the following steps:
A. building a BIM dynamic parameter model of the railway steel bridge according to the sequence of a member library, construction member drawing parameters, a framework wire frame and members;
B. adjusting and optimizing the established model;
C. importing the rechecked model information of the steel member entity into three-dimensional scanning software, and carrying out three-dimensional space operation on the model information through the three-dimensional scanning software to realize pre-assembly;
D. printing the assembled model by using a 3D printer;
E. and carrying out a plurality of data tests on the printed assembly model by adopting a testing mechanism.
2. The steel structure virtual pre-assembly method according to claim 1, characterized in that: in the step A, the drawing parameters of the building construction member are at least four of the size, specification, elevation, connecting node, connecting hole, connecting piece, pre-camber or angle of the member.
3. The steel structure virtual pre-assembly method according to claim 1, characterized in that: and B, checking and comparing the BIM dynamic parameter model and the physical model, adjusting steel structure parameters according to the checking and comparing result, acquiring the central position coordinates of the connecting nodes in the pre-assembly effect graph in a three-dimensional coordinate system, performing error analysis, checking the contact ratio between the BIM dynamic parameter model and the physical model, judging that the steel structure parameters reach the standard if the contact ratio between the BIM dynamic parameter model and the physical model meets the requirement, and judging that the steel structure parameters need to be modified if the deviation between the two models exceeds the relevant requirement.
4. The steel structure virtual pre-assembly method according to claim 1, characterized in that: in the step E, the test items are at least three items of compression resistance, displacement, sedimentation, wind resistance, temperature resistance, corrosion resistance or wear resistance of the steel structure.
5. The steel structure virtual pre-assembly method according to claim 1, characterized in that: the method further comprises the step of analyzing the machining precision of the steel structure, and the evaluation indexes of the steel structure for analyzing the machining precision are at least four of the height difference of the main beams on the two sides of the splicing seam, the distance between the cross beams, the trial assembly total length, the central lines of the two main beams, the side bends, the diagonal difference of the cross section, the horizontal diagonal difference, the verticality of the main beam port, the vertical curve difference or the passing rate of the high-strength bolt hole gauge.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112302171A (en) * | 2020-10-28 | 2021-02-02 | 山东方大杭萧钢构科技有限公司 | Steel structure pre-assembly method |
| CN113793098A (en) * | 2021-09-09 | 2021-12-14 | 安徽鸿路钢结构(集团)股份有限公司 | BIM (building information modeling) model management system for scanning two-dimensional code by mobile equipment |
| 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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| KR101624670B1 (en) * | 2015-09-25 | 2016-05-26 | 주식회사 동우 이앤씨 건축사사무소 | Method, system and computer-readable recording medium for providing information on structure modeling |
| CN107341847A (en) * | 2017-07-07 | 2017-11-10 | 四川云图瑞科技有限公司 | A kind of steel structure assembling members three-dimensional modeling data processing method based on BIM technology |
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- 2019-10-16 CN CN201910982198.0A patent/CN110909399A/en active Pending
Patent Citations (3)
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| CN103336856A (en) * | 2013-05-31 | 2013-10-02 | 中建钢构有限公司 | Virtual steel structure pre-assembly method based on visual model |
| KR101624670B1 (en) * | 2015-09-25 | 2016-05-26 | 주식회사 동우 이앤씨 건축사사무소 | Method, system and computer-readable recording medium for providing information on structure modeling |
| CN107341847A (en) * | 2017-07-07 | 2017-11-10 | 四川云图瑞科技有限公司 | A kind of steel structure assembling members three-dimensional modeling data processing method based on BIM technology |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112302171A (en) * | 2020-10-28 | 2021-02-02 | 山东方大杭萧钢构科技有限公司 | Steel structure pre-assembly method |
| CN112302171B (en) * | 2020-10-28 | 2021-09-21 | 山东方大杭萧钢构科技有限公司 | Steel structure pre-assembly method |
| CN113793098A (en) * | 2021-09-09 | 2021-12-14 | 安徽鸿路钢结构(集团)股份有限公司 | BIM (building information modeling) model management system for scanning two-dimensional code by mobile equipment |
| 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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Application publication date: 20200324 |