CN113032861B - Component collision analysis method based on BIM model - Google Patents
Component collision analysis method based on BIM model Download PDFInfo
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- CN113032861B CN113032861B CN201911341879.5A CN201911341879A CN113032861B CN 113032861 B CN113032861 B CN 113032861B CN 201911341879 A CN201911341879 A CN 201911341879A CN 113032861 B CN113032861 B CN 113032861B
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Abstract
The invention discloses a component collision analysis method based on a BIM model, which comprises the following steps: defining a direction vertical to the panel surface of the prefabricated part as a first direction, and defining the extending direction of the splicing parts of two adjacent prefabricated parts as a second direction, wherein the first direction is vertical to the second direction; identifying the type of the prefabricated part along a first direction, respectively acquiring first maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two first maximum outline profiles are overlapped or not; and identifying the type of the prefabricated part along a second direction, respectively acquiring second maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two second maximum outline profiles overlap or not so as to judge the collision condition of the prefabricated part, wherein the collision condition comprises collision and non-collision. The automatic analysis of collision conditions among the components is realized, the workload of related personnel is reduced, the condition of manual analysis error is avoided, and the user experience is improved.
Description
Technical Field
The invention relates to the field of assembly type building design, in particular to a component collision analysis method based on a BIM model.
Background
With the rapid development of fabricated buildings, BIM designs have also been unprecedented in development and opportunity. After the prefabricated part is produced, the prefabricated part is transported to an installation site, however, interference is often formed between the prefabricated part and the adjacent prefabricated part in the installation process of the prefabricated part, so that the prefabricated part cannot be smoothly positioned, or cannot be positioned according to the design, the prefabricated part needs to be manufactured again or is subjected to on-site refurbishment, and the construction period is greatly delayed. It is therefore necessary for the designer to find and circumvent the problem of interference of the prefabricated parts during the design phase. Therefore, how to automatically analyze the collision situation among the components, reduce the workload of the rear-end personnel and the construction period is a problem which must be solved in the field of BIM research.
Disclosure of Invention
The invention aims to provide a component collision analysis method based on a BIM model, which is used for automatically analyzing the collision situation among components from a design end and avoiding the problem of mutual interference among the components in the later installation process.
In order to solve the technical problems, the invention provides a component collision analysis method based on a BIM model, which comprises the following steps:
s1, defining a direction vertical to the plate surface of a prefabricated part as a first direction, and defining the extending direction of the splicing parts of two adjacent prefabricated parts as a second direction, wherein the first direction is vertical to the second direction;
s2, identifying the type of the prefabricated part along a first direction, respectively acquiring first maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two first maximum outline profiles are overlapped or not;
s3, identifying the type of the prefabricated part along a second direction, respectively acquiring second maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two second maximum outline profiles are overlapped;
s4, judging the collision condition of the prefabricated part according to the overlapping condition of the step S2 and the step S3; wherein the collision conditions include collision and non-collision.
Further, the identifying the prefabricated component includes:
and judging the type of the prefabricated part according to the shape of the prefabricated part, the reinforcement and the type of the peripheral reinforcement.
Further, the identifying the prefabricated part further includes:
and matching the built-in standard component of the BIM according to the identified type of the prefabricated component, and calling parameters of the standard component to obtain the size of the concrete slab surface of the prefabricated component and the maximum length of the extended steel bar.
Further, in the step of obtaining the maximum outline of the prefabricated part:
the dimension of the maximum outline of the prefabricated part comprises the sum of the lengths of the concrete slab surface in all directions and the maximum lengths of the protruding reinforcing steel bars in the corresponding directions.
Further, if there is no overlap between the two first maximum outline contours and between the two second maximum outline contours, it is determined that no collision occurs.
Further, if there is an overlap between the two first maximum outlines and between the two second maximum outlines, it is determined that a collision occurs, the overlap is highlighted in the BIM model, and the overlapped maximum outlines are divided into a concrete slab area and an extended reinforcement area, and it is determined whether the extended reinforcement area overlaps or the concrete slab area overlaps.
Further, if it is determined that the concrete slab surface areas overlap, it is finally determined that a collision occurs, and the dimensional parameter of the interference area is calculated.
Further, if the two extended steel bar areas are overlapped, the outer contour of the single steel bars is obtained, whether collision occurs between the single steel bars is judged, and if no collision occurs between the single steel bars, no collision occurs between the two prefabricated components is judged; if collision occurs between the single steel bars, it is determined that collision occurs between the two prefabricated members, the collision portion of the protruding steel bars is highlighted, and the size of the collision portion of the protruding steel bars is calculated.
According to the component collision analysis method based on the BIM, the maximum outer contours of the projections in the two mutually perpendicular directions are judged, the overlapping conditions are judged step by step, whether collision occurs between components in the assembled building is determined, automatic analysis of the collision conditions between the components is achieved, workload of related personnel is reduced, the situation of manual analysis error is avoided, and user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a component collision analysis method based on a BIM model according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a flowchart of a component collision analysis method based on a BIM model according to an embodiment of the present invention. In order to solve the technical problems, the invention provides a component collision analysis method based on a BIM model, which comprises the following steps:
firstly, defining a direction vertical to the plate surface of the prefabricated component as a first direction, and the extending direction of the splicing parts of two adjacent prefabricated components as a second direction, wherein the first direction is vertical to the second direction;
s101, identifying the type of the prefabricated part along a first direction, respectively acquiring first maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two first maximum outline profiles are overlapped;
specifically, the method further comprises the step of judging the type of the prefabricated component according to the shape, the reinforcement and the type of the peripheral reinforcement, wherein the prefabricated component is a floor slab, a wallboard, a beam column, a stair or the like. Then, the built-in standard component of the BIM model is matched according to the identified type of the prefabricated component, and parameters of the standard component are called, wherein the standard component has various parameters of the fixed prefabricated component, such as: the size of the concrete slab surface, the size, the number, the spacing distance, the bending degree and the like of the extending reinforcing steel bars are obtained, so that the size of the concrete slab surface of the prefabricated part and the maximum length of the extending reinforcing steel bars are obtained. The dimension of the maximum outer contour of the prefabricated part comprises the sum of the lengths of the concrete slab surface in each direction and the maximum length of the protruding reinforcing steel bars in the corresponding direction.
S102, identifying the type of the prefabricated part along a second direction, respectively acquiring second maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two second maximum outline profiles are overlapped;
s103, judging the collision condition of the prefabricated part according to the overlapping condition of the step S2 and the step S3; wherein the collision conditions include collision and non-collision.
The overlap here can be divided into a number of cases:
1. and if no overlap exists between the two first maximum outline contours and between the two second maximum outline contours, judging that no collision occurs.
2. If only one part of the two first maximum outline contours and the two second maximum outline contours are overlapped, the collision is primarily judged, the overlapped part is highlighted in the BIM model, the two overlapped maximum outline contours are further divided into a concrete slab area and an extended steel bar area, and the extended steel bar area is further judged to be overlapped or the concrete slab area is further judged to be overlapped; if it is determined that there is an overlap in the concrete slab surface region (including an overlap between the concrete slab surface region and the concrete slab surface region or an overlap between the concrete slab surface region and the extended rebar region), it is finally determined that a collision has occurred, and dimensional parameters of the interference region, such as overlapping length, width, and the like, are calculated.
3. If the two areas extending out of the steel bars are overlapped, the outer contour of the single steel bars is obtained, whether collision occurs between the single steel bars is judged, and if no collision occurs between the single steel bars, no collision occurs between the two prefabricated components is judged; if collision occurs between the single steel bars, it is determined that collision occurs between the two prefabricated members, the collision portion of the protruding steel bars is highlighted, and the size of the collision portion of the protruding steel bars is calculated.
According to the component collision analysis method based on the BIM, the maximum outer contours of the projections in the two mutually perpendicular directions are judged, the overlapping conditions are judged step by step, whether collision occurs between components in the assembled building is determined, automatic analysis of the collision conditions between the components is achieved, workload of related personnel is reduced, the situation of manual analysis error is avoided, and user experience is improved. The collision condition among the components is automatically analyzed from the design end, so that the problem of mutual interference among the components in the later installation process is avoided.
The component collision analysis method based on the BIM model provided by the invention is described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (6)
1. A component collision analysis method based on a BIM model, comprising:
s1, defining a direction vertical to the plate surface of a prefabricated part as a first direction, and defining the extending direction of the splicing parts of two adjacent prefabricated parts as a second direction, wherein the first direction is vertical to the second direction;
s2, identifying the type of the prefabricated part along a first direction, respectively acquiring first maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two first maximum outline profiles are overlapped or not;
s3, identifying the type of the prefabricated part along a second direction, respectively acquiring second maximum outline profiles of two adjacent prefabricated parts, and judging whether boundary lines of the two second maximum outline profiles are overlapped;
s4, judging the collision condition of the prefabricated part according to the overlapping condition of the step S2 and the step S3; wherein the collision conditions include collision and non-collision;
no overlap exists between the two first maximum outline contours and between the two second maximum outline contours, and no collision is judged;
and if one part of the overlapping is between the two first maximum outline and the two second maximum outline, judging that collision occurs, highlighting the overlapping part in the BIM model, dividing the overlapped maximum outline into a concrete slab area and an extended steel bar area, and judging whether the extended steel bar area is overlapped or the concrete slab area is overlapped.
2. The BIM model based component collision analysis method of claim 1, wherein the identifying the prefabricated component includes:
and judging the type of the prefabricated part according to the shape of the prefabricated part, the reinforcement and the type of the peripheral reinforcement.
3. The BIM model based component collision analysis method of claim 2, wherein the identifying the prefabricated component further includes:
and matching the built-in standard component of the BIM according to the identified type of the prefabricated component, and calling parameters of the standard component to obtain the size of the concrete slab surface of the prefabricated component and the maximum length of the extended steel bar.
4. A BIM model-based component collision analysis method according to claim 3, wherein in the step of obtaining the maximum profile of the prefabricated component:
the dimension of the maximum outline of the prefabricated part comprises the sum of the lengths of the concrete slab surface in all directions and the maximum lengths of the protruding reinforcing steel bars in the corresponding directions.
5. The method according to claim 4, wherein if it is determined that the concrete slab areas overlap, it is finally determined that a collision occurs, and the dimensional parameter of the interference area is calculated.
6. The method for analyzing the collision of the members based on the BIM model according to claim 5, wherein if it is determined that the two extended reinforcing bar areas overlap, the outer contour of the single reinforcing bar is obtained, whether the collision occurs between the single reinforcing bars is determined, and if the collision does not occur between the single reinforcing bars, it is determined that the collision does not occur between the two prefabricated members; if collision occurs between the single steel bars, it is determined that collision occurs between the two prefabricated members, the collision portion of the protruding steel bars is highlighted, and the size of the collision portion of the protruding steel bars is calculated.
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| CN114969948A (en) * | 2022-06-23 | 2022-08-30 | 三一筑工科技股份有限公司 | Embedded part generation method and device |
| CN117057018B (en) * | 2023-08-21 | 2024-04-05 | 广州珠江装修工程有限公司 | Interior decoration design management system based on BIM |
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