CN115952581A - Construction method for closed joint of top column part of hardcover ceiling based on 3D scanning model - Google Patents
Construction method for closed joint of top column part of hardcover ceiling based on 3D scanning model Download PDFInfo
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- CN115952581A CN115952581A CN202211606970.7A CN202211606970A CN115952581A CN 115952581 A CN115952581 A CN 115952581A CN 202211606970 A CN202211606970 A CN 202211606970A CN 115952581 A CN115952581 A CN 115952581A
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Abstract
The invention discloses a construction method of a closed node of a top column part of a finish-mounted suspended ceiling based on a 3D scanning model, which comprises the steps of three-dimensionally scanning a steel structure net rack to generate a 3D point cloud model; leading in the Rhino software, integrating with a BIM (building information modeling) model of a closing node of a top column part of a refined suspended ceiling in the Rhino software, confirming a deviation position, and performing reverse modeling to form a three-dimensional model of a lightweight solid grid surface; rechecking the measured data by the on-site total station instrument and feeding back the rechecked measured data to the 3D information model, manufacturing a sample plate section according to model information and different top column part node closing schemes, and adjusting the whole large suspended ceiling surface layer and the top column part closing nodes; parameterizing the elevation and the point position of the related material of the node closing-in part, deriving related positioning data and blanking data according to a BIM model, and manufacturing a blanking drawing according to the blanking data for blanking; and (4) performing point hitting installation on the site total station. The installation accuracy and the attractiveness are ensured, and the construction problem of the closed joint at the top column part of the curved surface suspended ceiling is solved.
Description
Technical Field
The invention relates to the technical field of fixed buildings, in particular to a construction method of a top column closing-up node of a refined suspended ceiling based on a 3D scanning model.
Background
Along with the development of the building industry, large-scale public infrastructure is more and more, so that the requirement on more comfortable and natural building functions is met, and the suspended ceiling is used as an important component in decoration and fitment of the building and provides better functions of heat preservation, heat insulation, sound absorption and the like. The large-span space appears in large-scale public infrastructure, the design of the steel structure roof with multiple curved surfaces staggered, but the closed joint of the top column part of the large suspended ceiling in the indoor finish decoration of the steel structure roof caused by the design is difficult to process, and the problems of large design and construction difficulty, high cost and the like are caused.
Disclosure of Invention
In order to solve the problems, the invention provides a construction method of the closed node of the top column part of the finish-mounted suspended ceiling based on a 3D scanning model, which effectively ensures the construction and installation precision of the closed node of the top column part of the finish-mounted suspended ceiling in the room and reduces the construction difficulty and cost. Meanwhile, the one-time excellent performance and the integral aesthetic property in construction can be well ensured.
The technical scheme adopted by the invention is as follows:
a construction method of a closed node at a top column part of a finish-mounted ceiling based on a 3D scanning model is characterized in that the closed node at the top column part of the finish-mounted ceiling comprises a decorative surface layer and a keel suspender system, the keel suspender system is connected with a main steel structure, and the decorative surface layer is fixed at the bottom of the keel suspender system; the construction method comprises the following steps:
the method comprises the steps that firstly, three-dimensional scanning is conducted on a constructed main steel structure net rack through three-dimensional scanning equipment, and a 3D point cloud model is generated through SCENE software;
secondly, importing the processed model into Rhino software, integrating the model with a BIM (building information modeling) model of a closing node of a top column part of a refined suspended ceiling in the Rhino software, confirming a deviation position, and performing reverse modeling to form a three-dimensional model of a lightweight solid grid surface;
thirdly, rechecking the measured data by the on-site total station instrument and feeding back the rechecked measured data to the 3D information model, manufacturing a template section according to model information and different top post part node closing schemes, and adjusting the whole large ceiling surface layer and the top post part closing nodes;
fourthly, parameterizing the elevation and the point position of the relevant material of the node closing-in part, deriving relevant positioning data and blanking data according to the BIM model, and manufacturing a blanking drawing according to the blanking data for blanking;
fifthly, point hitting and mounting of the total station instrument on site.
In the embodiment of the invention, the three-dimensional scanning device in the first step is a FARO Focus3DS1500, data is acquired in a target sphere form on site, the scanning data of the three-dimensional scanning device is directly read by using a matched FARO scene omnibearing 3D point cloud processing and management tool, and optimized splicing processing is carried out to obtain a 3D point cloud model.
In the embodiment of the invention, the spliced point cloud model and the original BIM model are integrated in the second step, the deviation between the field structure and the original BIM model is confirmed, navisvarks software is adopted for integration, the point cloud model is output in a format of rcp, the BIM model is output in a format of rvt, and the point cloud model and the BIM model are all integrated into Navisvarks and detected by adopting the measurement work in the review process.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. designing a top column part closing-in node which can be adjusted according to the curvature of a large suspended ceiling with a large-span space curved surface, providing all closing-in node parameters of the top column part of the large suspended ceiling with the large-span space curved surface, providing all closing-in material sizes of the top column part according to BIM parameters, and ensuring blanking production;
2. the construction process of the top column part closing-in node capable of adjusting specific parameters under the environment of the large-span space multi-curved-surface suspended ceiling can be accurately guided, the installation accuracy and the attractiveness are ensured, a one-step forming excellent construction method is formed, the construction problem of the closing-in node at the top column part of the curved-surface large suspended ceiling is solved, the rework is reduced, the construction period is shortened, and the construction difficulty and the construction cost are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a top column part closing-in node of a finished suspended ceiling in an embodiment of the invention.
Fig. 2 is a model diagram of the hardbound ceiling in Rhino software according to the embodiment of the invention.
The label correspondence in the figure is as follows:
1-square steel tube of steel structure net frame; 2-a circular tube steel hoop; 3, hanging a rod; 4-keel; 5-diffuse reflection plate; 6-main body steel structure upright post.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
This example provides a smart dress furred ceiling fore-set position binding off node construction method based on 3D scanning model, as shown in fig. 1, smart dress furred ceiling fore-set position binding off node includes architectural surface and fossil fragments jib system, and fossil fragments jib system and main part steel construction are connected, and architectural surface is fixed in fossil fragments jib system bottom. Specifically, the decorative cover layer can adopt diffuse reflection board 5, and at the position trompil of main part steel construction stand 6, diffuse reflection board 5's upper surface is latticed and has arranged fossil fragments 4, and fossil fragments 4 comprise main joist and secondary joist, and the main joist is connected with the lower extreme of jib 3 again, and the upper end of jib 3 is connected fixedly with the square steel pipe 1 of main part steel construction rack, and the circular steel pipe of main part steel construction rack is fixed in circular steel pipe staple bolt 2, and circular steel pipe staple bolt 2 is fixed between square steel pipe 1.
The invention designs a top column part closing node which can adjust the curvature of a large suspended ceiling according to a large-span space curved surface, provides all closing node parameters of the top column part of the large suspended ceiling of the large-span space curved surface, provides all closing material sizes of the top column part according to BIM parameters, and ensures blanking production; meanwhile, a set of construction process technology of the top column part closing-in node capable of adjusting specific parameters under the environment of accurately guiding the large-span space multi-curved-surface large suspended ceiling is summarized, the installation accuracy and the attractiveness are ensured, a set of construction method which is formed into excellent in one-step forming is formed, the problem of difficult construction of the closing-in node of the top column part of the curved-surface large suspended ceiling is solved, reworking is reduced, the construction period is shortened, and the construction difficulty and the construction cost are reduced.
The node is specifically arranged and designed on the basis of a 3D scanning model, and the 3D model is obtained by scanning the on-site entity of the large-span space steel structure roof and the steel column, so that the deepening design of the node of the keel suspender system of the large suspended ceiling base layer and the top column part is carried out again, and finally, the model and drawing information provided by the deepening design are used for carrying out blanking and construction.
The structure construction method is characterized in that after the professional axes and elevation lofting is completed before the construction of suspended ceiling projects such as structures, buildings and curtain walls, the method comprises the following steps: the method comprises the steps of field three-dimensional scanner FARO Focus3D S150 scanning structure → SCENE software point cloud source data model → data model splicing → data reality → induction of application of Rhino software → deviation analysis → non correspondence of specific closing nodes of corresponding top column parts of the finish large suspended ceiling and a flat vertical surface → field Lycra TS11 total station actual measurement data feedback model → improvement of specific closing nodes of the model according to a field template section → curvature analysis for integrally optimizing specific closing nodes of the top column parts of the finish large suspended ceiling → mold closing collision detection → parameterization of a frame assembly keel boom system layout picture → frame assembly keel boom system processing picture → readjustment of the whole elevation points of the closing nodes of the top columns → derivation of the whole closing nodes model positioning data → model blanking drawing → Lycra TS11 point printing installation.
Specifically, the construction method of the top column part closing-up node of the refined suspended ceiling based on the 3D scanning model comprises the following steps:
the method comprises the steps of firstly, carrying out three-dimensional scanning on a constructed main steel structure net rack by using three-dimensional scanning equipment, and generating a 3D point cloud model by using SCENE software. In practice, the adopted three-dimensional scanning equipment is FARO Focus3D S1500, data are collected in a target ball form on site, the scanning data of the three-dimensional scanning equipment are directly read by using a matched FARO SCENCE omnibearing 3D point cloud processing and management tool, optimized splicing processing is carried out, and a 3D point cloud model is obtained.
And secondly, introducing the Rhino software after model processing, integrating the model with a BIM (building information modeling) model of a closing node of a top column part of a refined suspended ceiling in the Rhino software as shown in figure 2, confirming a deviation position and then modeling in a reverse direction to form a three-dimensional model of a lightweight solid grid surface. In practice, the point cloud model spliced in the first step is integrated with the original BIM model, the deviation between the field structure and the original BIM model is confirmed, navisvarks software is adopted for integration, the point cloud model is output in an rcp format, the BIM model is output in an rvt format, the point cloud model and the BIM model are all integrated into Navisvarks and detected by adopting measurement work in 'review' and the deviation position is confirmed. The reverse modeling is that a three-dimensional laser scanning technology is used for scanning a real object to obtain the space geometric information of the object, the geometric information is subjected to dryness reduction, rarefaction and splicing, then the processed and integrated data is led into a reverse engineering software Geomagic Wrap, point cloud data is continuously optimized through the data, the point cloud data is spliced into a surface, an stl format file is generated, and the stl format file is led into the Rhino software for decoration deepening. And finally, forming a three-dimensional model of the solid grid surface for visual operation such as integration, sectioning, drawing and the like.
Thirdly, rechecking the measured data by the on-site total station and feeding the rechecked data back to the 3D information model, manufacturing a sample plate section according to model information and different top column part node closing schemes, and adjusting the whole large ceiling surface layer and the top column part closing nodes; the problem of collision between a field and a decorative surface layer is solved by integrating field data and an original design hardcover model; the integration is to unify the coordinates of the reverse model and the decoration model, know the spatial relationship between the facing and the field structure, and solve the problems of hard collision or insufficient installation space and the like. And (4) carrying out forward deepening design according to the field data and the original design hardcover model, wherein the forward deepening is to integrate each professional model into the model.
Fourthly, parameterizing the elevation and the point position of the relevant material of the node closing part, deriving relevant positioning data and blanking data according to a BIM model, and manufacturing a blanking drawing according to the blanking data for blanking;
fifthly, the on-site total station is installed in a dotting mode.
Furthermore, in the construction process of the top column part closing-in node of the large suspended ceiling for indoor finish decoration and the peripheral matched keel and suspender system thereof, the processing is carried out according to the processing dimension and the material specification of the design drawing strictly, so as to ensure that the keel system, the suspender system, the hoop, the diffuse reflection perforated aluminum alloy ribbon board, the diffuse reflection white aluminum veneer, the rectangular square steel, the steel hoop and the like in the node system at the position meet the design requirements of the drawing and the requirements of relevant specifications
In the construction process, according to a 3D information model obtained by scanning, the scanning point interval is reduced as much as possible during scanning, multiple times are realized, multiple points are subjected to cloud and multiple splicing and are led into BIM software for deviation analysis, the field total station rechecks actual measurement data and feeds back the actual measurement data to the model in time, sample plate sections are manufactured according to different top post position node closing schemes according to model information, after the closing node design scheme (drawing) is confirmed, as a large suspended ceiling is formed by intersecting multiple curved surfaces, the height and the edge line of a lamp groove at each node top post position are different, integral model curvature analysis is required, the integral large suspended ceiling surface layer and the top post position node closing are adjusted, the elevation and the point position of the relevant materials at the closed node position are parameterized, relevant positioning data and blanking data are derived according to a BIM model, blanking drawing is manufactured according to blanking data for blanking, in the construction process, a high-precision total station is required to be applied to installation of each node material, and the high-position construction operation is required to ensure the safety of the process.
The construction method is suitable for the construction of the large suspended ceiling in the large span space, and is also suitable for the establishment and construction of information models of houses, markets, subways and the like.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
From the foregoing, it will be seen that this invention is one well adapted to attain all the ends and objects hereinabove set forth together with other advantages which are obvious and which are inherent to the structure. It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is within the scope of the invention.
Claims (3)
1. A construction method of a closed node at a top column part of a finish-mounted suspended ceiling based on a 3D scanning model is characterized in that the closed node at the top column part of the finish-mounted suspended ceiling comprises a decorative surface layer and a keel suspender system, the keel suspender system is connected with a main steel structure, and the decorative surface layer is fixed at the bottom of the keel suspender system; the construction method comprises the following steps:
the method comprises the steps that firstly, three-dimensional scanning is conducted on a constructed main steel structure net rack through three-dimensional scanning equipment, and a 3D point cloud model is generated through SCENE software;
secondly, importing the processed model into Rhino software, integrating the model with a BIM (building information modeling) model of a closing node of a top column part of a refined suspended ceiling in the Rhino software, confirming a deviation position, and performing reverse modeling to form a three-dimensional model of a lightweight solid grid surface;
thirdly, rechecking the measured data by the on-site total station instrument and feeding back the rechecked measured data to the 3D information model, manufacturing a template section according to model information and different top post part node closing schemes, and adjusting the whole large ceiling surface layer and the top post part closing nodes;
fourthly, parameterizing the elevation and the point position of the relevant material of the node closing part, deriving relevant positioning data and blanking data according to a BIM model, and manufacturing a blanking drawing according to the blanking data for blanking;
fifthly, point hitting and mounting of the total station instrument on site.
2. The refined suspended ceiling top post part closing-up node construction method based on the 3D scanning model as claimed in claim 1, characterized in that the three-dimensional scanning device in the first step is FARO Focus3DS1500, data is collected on site by adopting a target ball form, the scanning data of the three-dimensional scanning device is directly read by using a matched FARO SCENCE omnibearing 3D point cloud processing and management tool, and optimized splicing processing is performed to obtain the 3D point cloud model.
3. The construction method of the top column part closing-up node of the refined suspended ceiling based on the 3D scanning model is characterized in that in the second step, the spliced point cloud model is integrated with the original BIM model, the deviation between the field structure and the original BIM model is confirmed, navisvarks software is adopted for integration, the point cloud model is output in an rcp format, the BIM model is output in an rvt format, and the point cloud model and the BIM model are integrated into Navisvarks and detected by adopting the measurement work in the review process.
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| CN202211606970.7A CN115952581A (en) | 2022-12-14 | 2022-12-14 | Construction method for closed joint of top column part of hardcover ceiling based on 3D scanning model |
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| CN202211606970.7A CN115952581A (en) | 2022-12-14 | 2022-12-14 | Construction method for closed joint of top column part of hardcover ceiling based on 3D scanning model |
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