CN110427653A - Parametrization collision detection and modified method based on BIM - Google Patents
Parametrization collision detection and modified method based on BIM Download PDFInfo
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- CN110427653A CN110427653A CN201910610175.7A CN201910610175A CN110427653A CN 110427653 A CN110427653 A CN 110427653A CN 201910610175 A CN201910610175 A CN 201910610175A CN 110427653 A CN110427653 A CN 110427653A
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Abstract
The present invention provides a kind of parametrization collision detection and modified method based on BIM, comprising steps of extracting prestress steel twist thread casing control point in Building Curtain Wall Structures from the reference base map of Revit model；The plane X-coordinate and Y-coordinate at control point are output in Excel table；The Z coordinate that control point is calculated in Excel table inputs back in Revit model, obtains updated Revit model；By collision detection software, in updated Revit model prestress steel twist thread casing and curtain wall embedded part carry out collision detection, for after collision detection as a result, the data adjusted will be needed to be input in Excel table, use when for updating Revit model again.Method of the invention substantially increases the precision of modeling, realizes the digital-to-analogue separation of Building Information Model, and the process reintegrated, the efficiency of model modification is improved under the premise of computer configuration reaches requirement.
Description
Technical field
The present invention relates to technical field of building construction more particularly to a kind of parametrization collision detections and amendment based on BIM
Method.
Background technique
In traditional structure design, the built-in fitting how prestress steel twist thread casing accurately avoids curtain wall is always one
Problem.Traditional thinking be after architectural discipline determines curtain wall function division curtain wall profession is given to formulate built-in fitting position, then with
The prestress wire sleeve position of structure discipline design is coordinated.The method is more universal and normal in current designing institute at home
A kind of method seen, but the experience dependent on designer itself that the method is excessive, it is easy to slip, structure construction is deposited
Stay obstacle.
In the case where country widelys popularize and helps the background of BIM technology application, this problem is by BIM threedimensional model collision detection institute
It solves, using BIM 3 d modeling software, such as revit.Each Professional Model, the collaborations such as building, structure, curtain wall, electromechanics is established to set
Meter, to accurately check whether construction pre-stress steel strand wires casing collides with curtain wall embedded part.It greatly reduces artificial
Influence of the factor to testing result.
It is architect, landscape architect, structural engineer, software MEP work that Autodesk Revit, which is autodesk, inc.,
Cheng Shi, a set of Information The Nation implements Safety Manufacture Li-cense prototype software of designer and contractor's exploitation.It support user with 3D form design building and
Structure and its group, using 2D drawing element annotation model, and from the database access Information The Nation implements Safety Manufacture Li-cense of buildings model.It is that China is answered
With a kind of most commonly used BIM modeling software.
However, the BIM technology application in China is not mature enough at this stage, there are problems.For example, in structure discipline benefit
When establishing prestress steel twist thread casing model with revit, by be similar to AUTOCAD form picture modeling pattern, this
Method has two: 1, there are errors for the precision of model；2, very troublesome during secondary modification.
Summary of the invention
For the problem that existing in the prior art or potential defect, the present invention intend to solve be to provide it is a kind of above-mentioned to realize
Technical effect, present invention provide the technical scheme that
A kind of parametrization collision detection and modified method based on BIM comprising step:
Establish the Revit model of Building Curtain Wall Structures；
Prestress steel twist thread casing in Building Curtain Wall Structures is extracted from the reference base map of the Revit model to control
Point；
The plane X-coordinate and Y-coordinate at the control point are output in Excel table；
The Z coordinate that the control point is calculated in Excel table inputs back in the Revit model, after obtaining update
Revit model；
By collision detection software, in the updated Revit model prestress steel twist thread casing and curtain wall bury
Part carries out collision detection, for after collision detection as a result, the data that adjust will be needed to be input in the Excel table, supplies
Use when updating the Revit model again.
In some embodiments of the invention, it is extracted from the reference base map of the Revit model by following steps
The control point, comprising steps of
One X-direction construction pre-stress layout drawing is inserted into the Revit model, as referring to base map；
Dynamo visualisation parameters programmer card is opened under Revit model, into Dynamo program；
The control point range referring to prestress steel twist thread casing in base map is chosen in the Dynamo program, it will be described
Dynamo pel is converted to referring to the Revit pel in base map；
Obtain the curve in the Dynamo pel in the control point range；
The central point for obtaining the curve, as prestress steel twist thread casing control point.
In some embodiments of the invention, the quantity at the control point is multiple, is extracting multiple control points
Afterwards, the X-coordinate at multiple control points and Y-coordinate are output in Excel table by following steps, comprising steps of
The X-coordinate for obtaining multiple control points carries out arrangement from small to large to coordinate value, is output to Excel table
In；
The Y-coordinate for obtaining multiple control points carries out arrangement from small to large to coordinate value, is output to the Excel
In table.
In some embodiments of the invention, Control point is calculated by formula (1) in the Excel table
Z coordinate:
Z (absolute coordinate)=Z1-h+Z2 (1)
Wherein, Z1 is the absolute elevation of floor where Building Curtain Wall Structures, and h is the slab thickness at the control point, Z2
It is the control point away from floor slab bottoms distance.
In some embodiments of the invention, it is inputted back after the Z coordinate for calculating the control point by following steps
In the Revit model, updated Revit model is obtained, comprising steps of
In the Dynamo program, multiple control points are sequentially connected in series to obtain prestress wire set by curve
The center line of pipe；
Using the section feature and the center line of prestress steel twist thread casing, scanning forms prestress steel twist thread casing
Physical model；
The physical model is converted to Revit race, updates the Revit model.
In some embodiments of the invention, after the collision detection, by following steps to the data for needing to adjust
It is updated, comprising steps of
Character pair point coordinate value in the Excel table is updated with the parameter value for needing to adjust；
The Dynamo program is run, the physical model is updated；
It converts updated physical model to new Revit race, updates the Revit model again
In some embodiments of the invention, the collision detection software is selected from Navisworks software, Fuzor software
With Synchro software.
The present invention due to the adoption of the above technical scheme, make it have it is following the utility model has the advantages that
(1) Parametric drive to Revit model is realized using the programming of Dynamo visualisation parameters；
(2) Excel and Dynamo, the interactivity of Dynamo and Revit are realized.
(3) modeling precision and secondary modification efficiency are improved.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 shows the main flow chart of parametrization collision detection and modified method of the embodiment of the present invention based on BIM.
Fig. 2 shows the model schematic of single prestress steel twist thread casing in the embodiment of the present invention.
Fig. 3 shows Dynamo curve graph in the embodiment of the present invention.
Fig. 4 shows in the embodiment of the present invention interactive relation figure between program.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
Specific embodiments of the present invention are done in the following with reference to the drawings and specific embodiments and are further described in detail.
When structure discipline establishes prestress steel twist thread casing model using Revit technology, usually relies on and be similar to
The picture modeling pattern of AUTOCAD form.The method has two: 1, there are errors for the precision of model；2, it is repaired secondary
It is very troublesome during changing.
For two above deficiency, the present invention proposes a kind of parametrization prestress steel twist thread casing and curtain wall based on BIM
Embedded part collision detection and modified method, referring to fig. 4, the software being related in this method mainly has: AUTOCAD, REVIT are flat
The collision detections software such as platform, Dynamo software, Excel table and Navisworks, Fuzor, Synchro.The present invention is main
It is realized by the visual programming software Dynamo of REVIT platform from the Parametric drive between Revit-Excel-Revit software.
Referring to Fig. 1, it is shown that the main flow of parametrization collision detection and modified method of the embodiment of the present invention based on BIM
Figure, as shown, this method mainly comprises the steps that
Step 01: establishing the Revit model of Building Curtain Wall Structures；
Step 02: extracting prestress steel twist thread casing in Building Curtain Wall Structures from the reference base map of the Revit model
Control point；
Step 03: the plane X-coordinate and Y-coordinate at control point are output in Microsoft Excel；
Step 04: calculating the Z coordinate at control point in Excel table, input back in Revit model, after obtaining update
Revit model；
Step 05: by collision detection software, to the prestress steel twist thread casing and curtain wall in updated Revit model
Embedded part carries out collision detection, for after collision detection as a result, the data adjusted will be needed to be input in Excel table, for again
It is used when secondary update Revit model.
Specifically, it is exactly first referred in base map from Revit using Dynamo software and extracts prestress steel twist thread casing
Plane XY coordinate is output in Excel (i.e. extraction model by each control point (also can use civil3d software directly to extract)
Information), corresponding Z coordinate is calculated in Excel later, inputs back in Revit model and (assigns new model information), is realized
Adjustment to model, model at this time are the model before collision detection.
Followed by collision detection software, such as Navisworks, Fuzor, Synchro, to structure discipline model and
The Professional Models such as building curtain wall carry out collision detection, for collision detection as a result, the data that adjust will be needed to be input to before
Excel table in, can be realized to the adjustment of the secondary fast accurate of model.
It is worth mentioning that: the core of the method for the present invention does not lie in collision detection, but for the result after collision detection
Make the modification of fast accurate.
It for example, can be by the present invention is based on the parametrization collision detections of BIM and modified method to be subdivided into following reality
Apply step:
1), certain layer of X-direction construction pre-stress layout drawing (AUTOCAD) is inserted into Rrevit model first, as ginseng
According to base map." auto origin to origin " (automatic origin to origin) order may be selected in the method for insertion.
2) Dynamo visualisation parameters programmer card, is opened in Revit software, utilizes " select model
Element " (preference pattern element) node selection Revit is referring to prestress steel twist thread casing control point range (this in base map
Place is a great circle, rather than an accurately control point), it realizes being converted to referring to the element in base map in Revit
Pel in Dynamo.
3), by " element.curves " (element curve) node, the curve in the pel after converting is obtained (into one
It is round).
4), by " sphere.CenterPoint " (scanning central point) node, obtaining center of curve point, (point is
Accurately prestress steel twist thread casing control point).
5), by the X-coordinate of " Point.X " (point .X) order acquisition point, then with " SortIndexByValue "
After (according to value to index order) order carries out sequence from small to large to its coordinate value, " Excel.WriteToFile " (table is utilized
File is written in lattice) order the corresponding position being output in Excel.Realize the model information extraction of Revit-Excel.
6) corresponding position, being similarly input to Y-coordinate value in Excel table.This is arrived, the XY coordinate at control point has been obtained
Coordinate.In Excel table, it is calculated by the following formula out the Z coordinate of corresponding points:
Z (absolute coordinate)=Z1-h+Z2 (1)
Wherein, Z1 is the absolute elevation of floor where Building Curtain Wall Structures, and h is the floor (emitting containing column) at the control point
Thickness, Z2 are the control point away from floor slab bottoms distance, and gained is the absolute coordinate.
7) it, is sat by the XYZ that characteristic point is extracted in " Excel.ReadFromFile " (table reads file) order respectively
Mark utilizes " Point.ByCoordinates " (point passes through coordinate) order to establish new control point (it in Dynamo program
The preceding no Z coordinate of point).
8) it, is ordered by " Nurbs Curve.ByPoints " (Nurbs curve passes through a little) and passes through series of features point
Curve is sequentially connected in series to obtain Nurbs curve, the i.e. center line of prestressed casing, and as shown in Figures 2 and 3, figure midpoint A is not input
The characteristic point of Z coordinate value is located on curve S after inputting Z coordinate value.
9) " solid.BySweep " (entity passes through scanning) node, is recycled, is existed by section+path method
Physical model is formed in Dynamo program.So far, this model is only in Dynamo program.
10), by User- defined Node, Python code is write, calls Revit API, is realized Dynamo physical model
The race being converted in Revit, and assign desired Praenomen and claim.The model information for completing Excel-Revit to this assigns.
11) it, repeats the above steps after the parametric modeling for completing X-direction and all prestressed casings of Y-direction, imported into
Synchro carries out collision detection.For after collision detection as a result, it is desirable to adjust, the parameter value input that will need to adjust
The corresponding position into Excel table, and Dynamo program is reruned, repeat the above steps 2)~step 10), can be completed
The adjustment of Revit model, quickly and precisely.
Method of the invention substantially increases the precision of modeling, realizes the digital-to-analogue separation of Building Information Model, and again
The process of integration improves the efficiency of model modification under the premise of computer configuration reaches requirement.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach and obtain
In the range of capable of covering.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre " and " one " in this specification
Term is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or repair
Decorations are the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, technology according to the present invention are real
Matter any simple modification, equivalent change and modification to the above embodiments, still fall within the range of technical solution of the present invention
It is interior.
Claims (7)
1. a kind of parametrization collision detection and modified method based on BIM, which is characterized in that comprising steps of
Establish the Revit model of Building Curtain Wall Structures；
Prestress steel twist thread casing control point in Building Curtain Wall Structures is extracted from the reference base map of the Revit model；
The plane X-coordinate and Y-coordinate at the control point are output in Excel table；
The Z coordinate that the control point is calculated in Excel table is inputted back in the Revit model, is obtained updated
Revit model；
By collision detection software, in the updated Revit model prestress steel twist thread casing and curtain wall embedded part into
Row collision detection, for after collision detection as a result, the data adjusted will be needed to be input in the Excel table, for again
Use when updating the Revit model.
2. parametrization collision detection and modified method based on BIM as described in claim 1, which is characterized in that by with
Lower step extracts the control point from the reference base map of the Revit model, comprising steps of
One X-direction construction pre-stress layout drawing is inserted into the Revit model, as referring to base map；
Dynamo visualisation parameters programmer card is opened under Revit model, into Dynamo program；
The control point range referring to prestress steel twist thread casing in base map is chosen in the Dynamo program, by the reference
Revit pel in base map is converted to Dynamo pel；
Obtain the curve in the Dynamo pel in the control point range；
The central point for obtaining the curve, as prestress steel twist thread casing control point.
3. parametrization collision detection and modified method based on BIM as claimed in claim 2, which is characterized in that the control
The quantity of system point be it is multiple, after extracting multiple control points, by following steps by the X-coordinate at multiple control points
It is output in Excel table with Y-coordinate, comprising steps of
The X-coordinate for obtaining multiple control points carries out arrangement from small to large to coordinate value, is output in Excel table；
The Y-coordinate for obtaining multiple control points carries out arrangement from small to large to coordinate value, is output to the Excel table
In.
4. parametrization collision detection and modified method based on BIM as claimed in claim 2, it is characterised in that: described
The Z coordinate of Control point is calculated in Microsoft Excel by formula (1)；
Z (absolute coordinate)=Z1-h+Z2 (1)
Wherein, Z1 is the absolute elevation of floor where Building Curtain Wall Structures, and h is the slab thickness at the control point, and Z2 is institute
Control point is stated away from floor slab bottoms distance.
5. parametrization collision detection and modified method based on BIM as claimed in claim 2, which is characterized in that by with
Lower step inputs back in the Revit model after the Z coordinate for calculating the control point, obtains updated Revit mould
Type, comprising steps of
In the Dynamo program, multiple control points are sequentially connected in series to obtain prestress steel twist thread casing by curve
Center line；
Using the section feature and the center line of prestress steel twist thread casing, scanning forms the entity of prestress steel twist thread casing
Model；
The physical model is converted to Revit race, updates the Revit model.
6. parametrization collision detection and modified method based on BIM as claimed in claim 5, which is characterized in that described
After collision detection, it is updated by the data that following steps adjust needs, comprising steps of
Character pair point coordinate value in the Excel table is updated with the parameter value for needing to adjust；
The Dynamo program is run, the physical model is updated；
It converts updated physical model to new Revit race, updates the Revit model again.
7. parametrization collision detection and modified method based on BIM as described in claim 1, it is characterised in that: described to touch
Inspection software is hit selected from Navisworks software, Fuzor software and Synchro software.
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| CN116542152A (en) * | 2023-05-10 | 2023-08-04 | 中建地下空间有限公司 | Anchor rod length calculation method based on Dynamo+BIM model |
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| CN113434932A (en) * | 2021-06-25 | 2021-09-24 | 广联达科技股份有限公司 | Collision detection method and device of BIM (building information modeling) model and electronic equipment |
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| CN114564772A (en) * | 2022-04-28 | 2022-05-31 | 广东世纪达建设集团有限公司 | Indoor decoration wall installation design method and system based on BIM |
| CN115964788A (en) * | 2022-12-28 | 2023-04-14 | 深圳市胜德建筑科技有限公司 | Building structure collision correction method and device based on BIM model |
| CN116542152A (en) * | 2023-05-10 | 2023-08-04 | 中建地下空间有限公司 | Anchor rod length calculation method based on Dynamo+BIM model |
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