CN108563860A - A kind of virtual pre-assembly method of steel construction - Google Patents
A kind of virtual pre-assembly method of steel construction Download PDFInfo
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- CN108563860A CN108563860A CN201810317207.XA CN201810317207A CN108563860A CN 108563860 A CN108563860 A CN 108563860A CN 201810317207 A CN201810317207 A CN 201810317207A CN 108563860 A CN108563860 A CN 108563860A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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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
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Abstract
The invention discloses a kind of virtual pre-assembly methods of steel construction, it is used for the virtual preassembling between the steel construction piece of bolt hole connection, the interface of each steel construction piece is provided at least one set of butt hole group, it is provided with digital close view photogrammetric system on four angle points of every group of butt hole group, two neighboring steel construction piece is connected by butt hole group；The centre coordinate of four angle point upper bolt holes of steel construction piece butt hole group is obtained before virtual preassembling using digital close view photogrammetric system, assembly during virtual preassembling using the centre coordinate realization of the bolt hole to two neighboring steel construction piece, the deviation of the centre coordinate of bolt hole on the two neighboring steel construction piece of comparative analysis, and butt hole group position on steel construction piece is corrected by the deviation.The method of the present invention is simple, can be greatly cost-effective compared with entity preassembling and shortens the construction period, especially true for the severe engineering of large complicated engineering and execution conditions.
Description
Technical field
The present invention relates to a kind of virtual pre-assembly methods of steel construction, belong to technical field of bridge construction, and in particular to a kind of
The construction method of steel construction preassembling.
Background technology
Steel construction is typically all to complete component (including expandable member) in factory, transports build on-site installation composition
's.It is in place to ensure accurately install after component transports to scene, it generally requires and carries out entity preassembling in factory to examine structure
Assembly.Plant entities preassembling is exactly by steel members and multilayers such as large-scale cylinder, beam, truss, the supports of segmentation manufacture
Steel-frame structure especially uses the large-scale steel structure of high strength exploitation, piecemeal manufacture and the steel sheel structure etc. supplied,
The operation process of entirety or the provisional assembling of staged and layered is carried out before manufacture.
Entity preassembling not only needs to occupy place, the equipment of factory, there is provision of moulding bed, expends a large amount of manpower object
Power, cost are very high.Recently as the fast development of computer technology, technique is brought for traditional entity preassembling technology
The opportunity of innovation.People can by means of new computer and its relevant technologies in CAD environment to entity preassembling process into
Row simulation, it is cost-effective to which auxiliary even saves entity preassembling process.
A kind of steel construction preassembling operating automation method is disclosed in Chinese invention patent CN103870657A,
Include the following steps：1) assembling members, automatic Organizational Parts splicing number are obtained according to steel construction detail drawing model；2) to detail drawing mould
The characteristic information of assembling members extracts in type, according to its actual coordinate of the feature calculation of extraction, generates the theory of each component
Measuring control point three-dimensional coordinate, automatic numbering；3) it is numbered according to theoretical measuring control point, to component telltale mark in kind；4) it is sat using three-dimensional
Measuring instrument is marked, three-dimensional coordinate measurement is carried out to each telltale mark, obtains each anchor point actual measurement three-dimensional coordinate；5) by each control point
Theoretical coordinate and Measured Coordinates comparative analysis propose modification report according to national manufacture of steel structure technical regulation and technological requirement
Or preassembling examining report, the authority as Quality Control Links.The intelligent automatic generation at the theoretical control point of the invention, can
Greatly reduce the error for manually drafting theoretical control point, processing and production efficiency are high.But it is the problem is that it virtual is spelled
It is only to consider that the theoretical coordinate of single steel construction piece in the error of actual coordinate, has ignored steel construction piece connection during dress
When both hole position installation when position relative error, therefore this method for instruct actual installation when, still can have installation accuracy
Insufficient defect.
It is virtually pre-splicing that a kind of steel construction based on Visualization Model is disclosed in Chinese invention patent CN103336856A
Dress method, includes the following steps：Step A obtains the model information of several steel member entities；Step B, to the steel member entity
Model information checked；Step C imports the model information in 3-D scanning software, soft by the 3-D scanning
Part carries out three dimensions operation to realize preassembling to the scan model.Using the virtual pre-assembly method of the steel construction of the invention
It can make splicing accuracy higher, spend human and material resources less, with into can also shorten fabrication cycle, reduce production cost.But it is simultaneously
Not disclosing can ensure that the assembled method of adjacent two pieces of steel construction pieces high-precision (is unable to control two neighboring steel construction piece to connect
Connect the position of Kong Qun).
Invention content
Present invention aim to overcome the shortcomings of the prior art, it is virtually pre- that the present invention devises a kind of steel construction
Assembling method.Not only method is simple for it, but also conveniently and efficiently can be used to instruct the virtual preassembling of steel construction piece.
The invention discloses a kind of virtual pre-assembly methods of steel construction, are used between the steel construction piece of bolt hole connection
Virtual preassembling, the interface of each steel construction piece are provided at least one set of butt hole group, on four angle points of every group of butt hole group
It is provided with digital close view photogrammetric system, two neighboring steel construction piece is connected by butt hole group；It is utilized before virtual preassembling
Digital close view photogrammetric system obtains the centre coordinate of four angle point upper bolt holes of steel construction piece butt hole group, virtual pre-splicing
During dress the assembly to two neighboring steel construction piece, the two neighboring steel of comparative analysis are realized using the centre coordinate of the bolt hole
The deviation of the centre coordinate of bolt hole on structural member, and butt hole group position on steel construction piece is corrected by the deviation.
In a kind of preferred embodiment of the present invention, specific steps include：(1) preassembling unit is determined：Selected steel knot
Component, steel construction piece junction are provided with butt hole group, and photogrammetric tooling is laid on four angle points of butt hole group；(2)
Image recognition：Measurement reconciliation of taking pictures is carried out to the butt hole group of steel construction piece interface by digital close view photogrammetric system
It calculates, the central three-dimensional of four angle point upper bolt holes of butt hole group under this photogrammetric coordinate system of the selected steel construction piece of acquisition is sat
Mark；(3) coordinate conversion and entity preassembling：The Three Dimensional Design Model for importing each steel construction piece is extracted each steel construction piece and is connect
Central three-dimensional coordinate at mouthful for the bolt hole of splicing, and instruct preassembling using the central three-dimensional coordinate value；(4) pre-splicing
Assembling structure is analyzed, should when the deviation of the central three-dimensional coordinate of the interface of two neighboring steel construction piece is in given range
Preassembling unit is qualified, using two steel construction pieces of the splicing qualification to splice more than unit progress next round；When two neighboring steel
When the deviation of the central three-dimensional coordinate of the interface of structural member is beyond in given range, analysis deviation reason simultaneously obtains correction knot
Fruit instructs the adjustment of the butt hole group position of steel construction piece interface using the correction result.
In a kind of preferred embodiment of the present invention, in step (4), after each segment splicing, single segmental is referred to
Mark evaluation then adjusts splicing parameter and splices again, until all indexs are optimal if there is index does not pass through；Work as single segmental
After precision passes through, the assembly of two two segments can be carried out；Before carrying out two two segment splicings, ensure that each segment is spliced good and led to
Cross precision analysis；After the splicing of two two segments, assembled metrics evaluation is carried out to all segments and is then adjusted if there is index does not pass through
Splicing parameter is spliced again, until all indexs are optimal.
In a kind of preferred embodiment of the present invention, before segment is spliced, essence is processed to each steel construction piece
Degree is analyzed, and after each qualified, then carries out single segmental splicing.
In a kind of preferred embodiment of the present invention, the evaluation index that steel construction piece is processed precision analysis is：1)
Splicing seams both sides girder difference of height；2) crossbeam spacing；3) trial assembly overall length；4) two girder center line；5) side sway；6) cross section is diagonal
Line is poor；7) horizontal diagonal line is poor；8) girder port verticality；9) vertical curve line is poor；10) per segment quadrangle difference of height；11) high-strength
Spend bolt hole gauge percent of pass.
In a kind of preferred embodiment of the present invention, in step (3), steel construction is obtained by close range photogrammetric system
The three dimensional point cloud of part, and shown in the form of threedimensional model.
In a kind of preferred embodiment of the present invention, the display mode of threedimensional model form is as follows：1) guiding structure part
Measurement pointcloud；2) Three Dimensional Design Model of guiding structure part in software；3) from the middle design for obtaining bolt hole that designs a model
Coordinate value；4) common point conversion is carried out to the measurement point of bolt hole and design point, obtains conversion parameter, is set with conversion parameter pair
Meter model is converted, then design a model the position that can be shown to where measurement point.Model be can refer to measurement pointcloud data
Carry out correlation data calculation and display.
In a kind of preferred embodiment of the present invention, the side of butt hole group position on deviation correction steel construction piece is utilized
Method includes, using the butt hole group on metal material backfill raw steel structural member and redrilling or in pair of new steel construction piece
It is drilled with revised butt hole group position on interface.
Compared with prior art and product, the present invention has the advantages that：The method of the present invention is simple, pre- with entity
Assembly is compared to can be greatly cost-effective and shortening the construction period, especially for the severe engineering of large complicated engineering and execution conditions
So.The technologies such as the adjustment of condition equation are used in virtual preassembling technology, Measured Coordinates can be allowed maximum with theoretical coordinate
It is close, while bridge can be allowed to keep linear as possible.Compared with the method for other virtual preassemblings, to the steel of bolt hole connection
Structure is assemblied with more significant effect, can be unfolded only by the coordinate position of hole group's angle point by putting to line, then to face
To entire rod piece, reflect the location status of entire rod piece comprehensively.It may be noted that the present invention substantially realizes on the whole
The preassembling of steel construction piece, thus single component than in the prior art has the precision of bigger with standard component comparison one by one, because
Steel construction piece and steel construction piece can have deviation when making itself, if between only considering to realize two steel construction pieces
Connection, method used in two documents mentioned in background technology can eliminate above-mentioned assembled deviation really, still
When the assembled deviation between the steel construction piece (2 are one group, the case where being connected with each other between two adjacent groups) of multiple segments is
What the documents being previously mentioned in background technology did not accounted for, and this is also exactly the inventive point place of the present invention.
Description of the drawings
Fig. 1 is the virtual preassembling process schematic of steel structure member in the prior art.
Fig. 2 is the schematic diagram of the virtual preassembling process of steel structure member of the present invention.
Specific implementation mode
The present invention is described in further details with reference to specific attached drawing and example, convenient for the present invention is well understood,
But they do not constitute the present invention and limit.
The purpose of the present invention provides a kind of virtual preassembling technology of steel construction aiming at the above problem.The method
Specifically include following steps：(1) structural member measurement data obtains.(2) splice plate design point data acquisition.(3) structural member is spelled
Dress.(4) splicing accuracy is analyzed.(5) assembled Three-dimensional Display.
Specifically, the step (1), selectes structural member to be measured, to the hole position for being useful for docking and detecting and characteristic point
It is numbered, lays photogrammetric tooling on four angle points of butt hole group, carried out by digital close view photogrammetric system
It takes pictures measurement and resolving, you can obtain the tested point three-dimensional coordinate under selected structural member this photogrammetric coordinate system.Step 1
It is the three-dimensional coordinate of each Kong Qunsi angle point in order to obtain structural member.
Specifically, the step (2), the Three Dimensional Design Model of splice plate is imported in preassembling software, is above carried in model
It takes in the centre coordinate of the bolt hole of splicing.
Specifically, the step (3) is processed precision analysis before segment is spliced to each structural member, respectively refer to
After mark is qualified, then carry out single segmental splicing.After each segment splicing, metrics evaluation is carried out to single segmental, if there is index is not led to
It crosses, then adjusts splicing parameter, splice again, until all indexs are optimal.After single segmental precision passes through, it can carry out two-by-two
The assembly of segment.Before carrying out two two segment splicings, ensure that each segment splices good and passes through precision analysis.Two two segments are spelled
After connecing, assembled metrics evaluation is carried out to all segments and then adjusts splicing parameter if there is index does not pass through, splices again, until
Until all indexs are optimal.
Specifically, the step (4) need to analyze assembled data after carrying out assembly to structural member, assembly is tied
Fruit is evaluated, and evaluation result is carried out visualization output, and evaluation content is specially 11 indexs：1) splicing seams both sides girder
Difference of height；2) crossbeam spacing；3) trial assembly overall length；4) two girder center line；5) side sway；6) cross section diagonal is poor；7) horizontal right
Linea angulata is poor；8) girder port verticality；9) vertical curve line is poor (camber)；10) per segment quadrangle difference of height；11) high-strength bolt
Hole gauge percent of pass.
Table specific as follows：
Specifically, the step (5), the three-dimensional point cloud number of structural member is obtained by close range photogrammetric system IDPMS
According to, it is more intuitive in order to make structural member show, it can be shown in the form of threedimensional model.Display mode is as follows：1) guiding structure
The measurement pointcloud of part；2) Three Dimensional Design Model of guiding structure part in software；3) middle setting for bolt hole is obtained from designing a model
Count coordinate value；4) common point conversion is carried out to the measurement point of bolt hole and design point, conversion parameter is obtained, with conversion parameter pair
It designs a model and is converted, then design a model the position that can be shown to where measurement point.Model be can refer to measurement pointcloud number
According to progress correlation data calculation and display.
In this method, digital simulation preassembling can be greatly cost-effective compared with entity preassembling and be shortened the construction period,
It is especially true for the severe engineering of large complicated engineering and execution conditions.Adjustment of condition equation etc. is used in virtual preassembling technology
Technology can allow Measured Coordinates to be approached to the greatest extent with theoretical coordinate, while bridge can be allowed to keep linear as possible.With other
The method of virtual preassembling is compared, and is had more significant effect to the steel structure assembling of bolt hole connection, by point to line, then is arrived
Face can be deployed into entire rod piece, reflect the position shape of entire rod piece comprehensively only by the coordinate position of hole group's angle point
State.
Claims (8)
1. a kind of virtual pre-assembly method of steel construction, it is characterised in that：It is used for the void between the steel construction piece of bolt hole connection
Quasi- preassembling, the interface of each steel construction piece are provided at least one set of butt hole group, are set on four angle points of every group of butt hole group
It is equipped with digital close view photogrammetric system, two neighboring steel construction piece is connected by butt hole group；Number is utilized before virtual preassembling
Word close range photogrammetric system obtains the centre coordinate of four angle point upper bolt holes of steel construction piece butt hole group, virtual preassembling
The centre coordinate of the bolt hole is utilized to realize the assembly to two neighboring steel construction piece, the two neighboring steel knot of comparative analysis in the process
The deviation of the centre coordinate of bolt hole on component, and butt hole group position on steel construction piece is corrected by the deviation.
2. the virtual pre-assembly method of steel construction according to claim 1, it is characterised in that：Specific steps include：
(1) preassembling unit is determined：Selected steel construction piece, steel construction piece junction is provided with butt hole group, butt hole group's
Photogrammetric tooling is laid on four angle points；
(2) image recognition：Survey of taking pictures is carried out to the butt hole group of steel construction piece interface by digital close view photogrammetric system
It measures and resolves, the center of four angle point upper bolt holes of butt hole group under this photogrammetric coordinate system of the selected steel construction piece of acquisition
Three-dimensional coordinate；
(3) coordinate conversion and entity preassembling：The Three Dimensional Design Model for importing each steel construction piece is extracted each steel construction piece and is connect
Central three-dimensional coordinate at mouthful for the bolt hole of splicing, and instruct preassembling using the central three-dimensional coordinate value；
(4) preassembling structural analysis, when the deviation of the central three-dimensional coordinate of the interface of two neighboring steel construction piece is giving
When in range, preassembling unit is qualified, using two steel construction pieces of the splicing qualification to splice more than unit progress next round；When
When the deviation of the central three-dimensional coordinate of the interface of two neighboring steel construction piece is beyond in given range, analysis deviation reason is simultaneously
It is corrected as a result, instructing the adjustment of the butt hole group position of steel construction piece interface using the correction result.
3. the virtual pre-assembly method of steel construction according to claim 2, it is characterised in that：In step (4), each segment is spelled
After connecing, metrics evaluation is carried out to single segmental, if there is index does not pass through, then splicing parameter is adjusted and splices again, until all fingers
Mark it is optimal until；After single segmental precision passes through, the assembly of two two segments can be carried out；Before carrying out two two segment splicings, protect
Each segment is demonstrate,proved to splice good and pass through precision analysis；After the splicing of two two segments, assembled metrics evaluation is carried out to all segments, if
There is index not pass through, then adjusts splicing parameter and splice again, until all indexs are optimal.
4. the virtual pre-assembly method of steel construction according to claim 2, it is characterised in that：Before segment is spliced, to every
A steel construction piece is processed precision analysis, after each qualified, then carries out single segmental splicing.
5. the virtual pre-assembly method of steel construction according to claim 4, it is characterised in that：Steel construction piece is processed precision
The evaluation index of analysis is：1) splicing seams both sides girder difference of height；2) crossbeam spacing；3) trial assembly overall length；4) two girder center line；
5) side sway；6) cross section diagonal is poor；7) horizontal diagonal line is poor；8) girder port verticality；9) vertical curve line is poor；10) it often saves
Section quadrangle difference of height；11) high-strength bolt hole gauge percent of pass.
6. the virtual pre-assembly method of steel construction according to claim 1, it is characterised in that：In step (3), taken the photograph by close shot
Shadow measuring system obtains the three dimensional point cloud of steel construction piece, and is shown in the form of threedimensional model.
7. the virtual pre-assembly method of steel construction according to claim 6, it is characterised in that：The display side of threedimensional model form
Formula is as follows：1) measurement pointcloud of guiding structure part；2) Three Dimensional Design Model of guiding structure part in software；3) from designing a model
The middle design coordinate value for obtaining bolt hole；4) common point conversion is carried out to the measurement point of bolt hole and design point, obtains conversion ginseng
Number, converts with conversion parameter to designing a model, then design a model the position that can be shown to where measurement point.It can refer to
Model carries out correlation data calculation and display to measurement pointcloud data.
8. the virtual pre-assembly method of steel construction according to claim 1, it is characterised in that：Steel construction is corrected using deviation
The method of butt hole group position includes on part, using metal material backfill raw steel structural member on butt hole group and redrilling or
Person is in new steel construction piece to being drilled with revised butt hole group position on interface.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109948274A (en) * | 2019-03-28 | 2019-06-28 | 武汉钢铁有限公司 | A kind of pipe line steel side sway determination method and the method for improving pipeline steel quality |
| CN111259492A (en) * | 2020-02-10 | 2020-06-09 | 湖南省西城建设有限公司 | Point cloud data processing method and device applied to bridge structure pre-assembly and storage medium |
| 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 |
| CN113722789A (en) * | 2021-07-22 | 2021-11-30 | 河北工业大学 | Steel structure bridge virtual assembly method based on 3D laser scanning and process feedback |
| CN114674225A (en) * | 2022-03-25 | 2022-06-28 | 北京城建设计发展集团股份有限公司 | Prefabricated component assembling surface manufacturing error identification algorithm |
| CN117197410A (en) * | 2023-11-06 | 2023-12-08 | 中铁大桥局集团有限公司 | Virtual splicing method, device and equipment for steel structure and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370049A (en) * | 2015-11-16 | 2016-03-02 | 上海振华重工(集团)股份有限公司 | Rotating wheel section pre-assembly method for ferris wheel |
| CN107273607A (en) * | 2017-06-13 | 2017-10-20 | 北京工业大学 | A kind of steel-structure factory building pre-assembly method based on BIM |
-
2018
- 2018-04-10 CN CN201810317207.XA patent/CN108563860A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370049A (en) * | 2015-11-16 | 2016-03-02 | 上海振华重工(集团)股份有限公司 | Rotating wheel section pre-assembly method for ferris wheel |
| CN107273607A (en) * | 2017-06-13 | 2017-10-20 | 北京工业大学 | A kind of steel-structure factory building pre-assembly method based on BIM |
Non-Patent Citations (1)
| Title |
|---|
| 李杨等: "数字模拟预拼装理论研究", 《工业建筑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109948274A (en) * | 2019-03-28 | 2019-06-28 | 武汉钢铁有限公司 | A kind of pipe line steel side sway determination method and the method for improving pipeline steel quality |
| CN111259492A (en) * | 2020-02-10 | 2020-06-09 | 湖南省西城建设有限公司 | Point cloud data processing method and device applied to bridge structure pre-assembly and storage medium |
| CN111259492B (en) * | 2020-02-10 | 2023-08-11 | 湖南省西城建设有限公司 | Point cloud data processing method and device applied to bridge structure pre-assembly and storage medium |
| 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 |
| CN113722789A (en) * | 2021-07-22 | 2021-11-30 | 河北工业大学 | Steel structure bridge virtual assembly method based on 3D laser scanning and process feedback |
| CN113722789B (en) * | 2021-07-22 | 2023-08-15 | 河北工业大学 | Virtual steel structure bridge assembling method based on 3D laser scanning and process feedback |
| CN114674225A (en) * | 2022-03-25 | 2022-06-28 | 北京城建设计发展集团股份有限公司 | Prefabricated component assembling surface manufacturing error identification algorithm |
| CN114674225B (en) * | 2022-03-25 | 2022-09-20 | 北京城建设计发展集团股份有限公司 | Prefabricated component assembling surface manufacturing error identification algorithm |
| CN117197410A (en) * | 2023-11-06 | 2023-12-08 | 中铁大桥局集团有限公司 | Virtual splicing method, device and equipment for steel structure and storage medium |
| CN117197410B (en) * | 2023-11-06 | 2024-03-26 | 中铁大桥局集团有限公司 | Virtual splicing method, device and equipment for steel structure and storage medium |
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