Spatial clear height analysis method and system based on BIM (Building Information Modeling) information model

Abstract

The invention discloses a spatial clear height analysis method and system based on a BIM (Building Information Model), and the method comprises the steps: carrying out the arrangement of a building room in the BIM, recognizing an analysis boundary space of a room space range, and obtaining a clear height analysis main body in the analysis boundary space; the minimum clearance height value in each analysis boundary space of all the floors is obtained, and a minimum clearance height data table is formed; performing color filling on the analysis boundary space projection plane to form a projection plane color block data table; analyzing and processing the minimum clearance height data table and the projection plane color block data table to obtain a clearance height analysis plane graph of each layer; and setting the net height analysis data into the net height analysis plane graph to obtain a combined net height analysis plane graph. The net height analysis efficiency of the three-dimensional model can be improved, and the building space utilization rate and quality are improved.

Description

Technical Field

[0001] The present invention relates to the field of space clear height analysis, and in particular to a space clear height analysis method and system based on a BIM information model. Background Art

[0002] As one of the representatives of BIM 3D architectural design software, Revit has become an indispensable tool in the architecture, engineering and construction (AEC) industry. Such tools enable design teams to create, collaborate and analyze complex building projects by providing an integrated platform. However, despite the powerful modeling capabilities provided by Revit, there are still some challenges in certain specific design inspection tasks, such as clear height analysis. Clear height refers to the vertical distance between the ground and the highest obstacle (such as beams, pipes, equipment, etc.) in the interior space of a building. During the design process, it is crucial to ensure that the clear height meets the code requirements and the requirements for human activity space, as it directly affects the functionality and comfort of the building.

[0003] In the traditional design process, designers need to manually check the clear height, which usually involves the following steps: Location navigation: Designers need to find the areas that need to be checked in complex 3D models. Data extraction: Extract the size and location information of components such as beams and pipes from the model. Clear height calculation: Based on the extracted data, calculate the clear height of each area and compare it with the specification requirements or usage requirements. Problem identification: Identify areas that do not meet the requirements and mark them. Design adjustment: Based on the inspection results, make necessary adjustments to the design to ensure that the clear height is compliant. The above process is not only time-consuming, but also prone to errors. Especially in large projects, manually checking and analyzing the clear height is almost an impossible task. In addition, as the project progresses, design changes may lead to clear height problems, which requires designers to constantly repeat the above inspection process, further increasing the workload.

[0004] Therefore, there is an urgent need for a space clear height analysis method and system based on the BIM information model, which can improve the efficiency of three-dimensional model clear height analysis and improve the utilization rate and quality of building space. Summary of the invention

[0005] In view of this, the purpose of the present invention is to overcome the defects in the prior art and provide a space clear height analysis method and system based on BIM information model, which can improve the efficiency of three-dimensional model clear height analysis and improve the utilization rate and quality of building space.

[0006] The space clear height analysis method based on the BIM information model of the present invention includes:

[0007] Arrange the building rooms in the BIM model, identify the analysis boundary space of the room space range, and obtain the net height analysis subject within the analysis boundary space;

[0008] Obtain the minimum clear height value in each analysis boundary space of all floors to form a minimum clear height data table;

[0009] Fill the analysis boundary space projection plane with color to form a projection plane color block data table;

[0010] Analyze and process the minimum headroom data table and the projection plane color block data table to obtain the headroom analysis plan of each floor;

[0011] Set the clear height analysis data into the clear height analysis plan to obtain the merged clear height analysis plan.

[0012] Furthermore, the analysis boundary space of the room space range is identified, including:

[0013] The same room name and the room length and width boundaries that can form a closed boundary are defined as one analysis boundary space; or the same floor and the same room name if there are two unclosed spaces in the length and width boundaries, they are two different analysis boundary spaces; and so on, the analysis boundary spaces for net height analysis are formed respectively, and the room name is the analysis boundary space name. Among them, the names of the spaces with the same name and unclosed are randomly numbered after the room name.

[0014] Further, obtain the net height analysis subject within the analysis boundary space, specifically including:

[0015] Identify the upper layer of the floor, the lower layer of the ceiling, the bottom surface of objects in the space, and objects in the space, such as beams, components, equipment, and pipelines; if there are insulation and protection measures, identify the bottom surface of the corresponding object after the measures.

[0016] Furthermore, the minimum clear height value in each analysis boundary space of all floors is obtained to form a minimum clear height data table, which specifically includes:

[0017] Calculate the vertical distances of the bottom surfaces of all objects or measures relative to the upper layer of the floor respectively, and use the bubble sort method to traverse the vertical distance values ​​of this space to calculate the minimum value, which is the minimum clear height value in this analysis boundary space and also the minimum usable space clearance in such rooms. The corresponding object is the lowest analysis subject in this space; and so on, obtain the minimum clear height value in each analysis boundary space of all floors, and finally form a minimum clearance height data table mainly classified by room name; the minimum clearance height data table includes room name, minimum clearance height, minimum analysis subject name and minimum position.

[0018] Furthermore, the projection plane of the analysis boundary space is filled with colors to form a projection plane color block data table, which specifically includes:

[0019] Each analysis boundary space is orthographically projected and randomly filled with colors. The projection plane color of each analysis boundary space is different. The projection plane color of the analysis boundary space with the same room name on each floor is the same. The plane boundary formed by the projection of the analysis boundary space is the range boundary of the color filling, and the space name enclosed by the filled boundary is defined as the name of the analysis boundary space, that is, the room name, so as to form the analysis boundary space projection plane color block map of each floor, and form a projection plane color block data table based on the room name; the projection plane color block data table includes the room name, the projection plane color block RGB value, the projection boundary position and the floor.

[0020] Further, the minimum clearance height data table and the projection plane color block data table are analyzed and processed, specifically including:

[0021] First, obtain the room name in the minimum headroom data table and the room name in the projection plane color block data table, match the same room name and merge the data to form a new data table. The new data table includes the room name, minimum headroom, minimum analysis subject name, minimum position, projection plane color block RGB value, projection boundary position and floor;

[0022] Then mark the room name and the lowest clear height in the projection plane, mark each analysis space once, and the marking position shall not exceed the projection boundary position; secondly, circle the lowest position of this analysis space in the projection plane, and the circled range shall be τ larger than the object at the lowest position and shall not exceed the projection boundary; and so on, to form the lowest clear height marking of each analysis space on each floor, which is the clear height analysis plan of each floor.

[0023] Further, the net height analysis data is obtained according to the following method:

[0024] The minimum headroom data table and the projection plane color block data table are merged to form a merged data table; based on the merged data table, a new customizable headroom control attribute column is added for customizing the headroom control value of the room space;

[0025] The minimum headroom and headroom control of each room space type on each floor are analyzed. If the minimum headroom value is lower than the headroom control value, the minimum headroom value will be marked in red in the list to display the headroom analysis conclusion in the form of a visual analysis table. The headroom analysis data includes floor, room name, minimum headroom, headroom control value and headroom analysis conclusion.

[0026] Furthermore, it also includes: locating the room position in the analysis list, specifically including:

[0027] According to the data row corresponding to the selected room, the projection boundary position and floor of the corresponding room name are obtained, and the projection boundary of the corresponding room in the net height analysis plan of the corresponding floor is identified and located, so as to find and locate the analysis space in the BIM model.

[0028] A space clear height analysis system based on a BIM information model, comprising a room arrangement module, a clear height plane generation module, a clear height inspection module and a result export module;

[0029] The room layout module generates room spaces and their attributes in the BIM model, and marks room names in the plan view;

[0030] The net height plane generation module: You can choose to use the lowest net height of the beam bottom or the lowest net height of the pipeline, set the fill color and style, place the room name, lowest net height, color, and legend annotation, check the floor for which the net height plane needs to be generated, generate the net height analysis plan, and then generate the net height plane. The generated net height plane will be displayed in the project browser floor plan-net height plane;

[0031] The net height check module: controls the input of the net height, executes the net height check command, automatically analyzes and checks whether the minimum net height meets the control net height requirement, displays the actual net height information of each room on each floor of the model in the net height check dialog box, marks the rooms that do not meet the net height requirement in red in the list box, and can automatically locate the net height position of the selected room and the net height plane of the floor where it is located. Select the room in the list window, click the search button, and locate the marked position of the net height information of the room;

[0032] The result export module exports the net height analysis results, merges the table including the floor, room name, minimum net height, net height control value and net height analysis conclusion into the net height analysis plan, and exports it into PDF or CAD format or Excel table.

[0033] The beneficial effects of the present invention are as follows: the present invention discloses a space clear height analysis method and system based on BIM information model, which, by arranging the building rooms in the BIM model, identifies the analysis boundary space of the room space range, obtains the clear height analysis subject in the analysis boundary space, forms a minimum clear height data table and forms a projection plane color block data table; by analyzing and processing the minimum clear height data table and the projection plane color block data table, obtains the clear height analysis plan of each layer; sets the clear height analysis data to the clear height analysis plan, obtains the merged clear height analysis plan and exports it. The present invention frees designers from manually checking the clear height, saves designers' time for manual checking, significantly improves the efficiency of three-dimensional model clear height analysis, and improves the utilization rate and quality of building space. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0035] Figure 1 It is a flow chart of the space clear height analysis method of the present invention;

[0036] Figure 2 It is a block diagram of the space clear height analysis system of the present invention;

[0037] Figure 3 It is the main diagram of the space clear height analysis of the present invention;

[0038] Figure 4 A dialog box for generating a clear height plane for the space clear height analysis of the present invention;

[0039] Figure 5 This is a rendering of the realization of the space clear height analysis of the present invention;

[0040] Figure 6 This is the dialog box and rendering of the space clear height analysis of the present invention. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with the accompanying drawings, as shown in the drawings:

[0042] like Figure 1 As shown, this embodiment discloses a space clear height analysis method based on a BIM information model, comprising the following steps:

[0043] Arrange the building rooms in the BIM model, identify the analysis boundary space of the room space range, and obtain the net height analysis subject within the analysis boundary space;

[0044] Obtain the minimum clear height value in each analysis boundary space of all floors to form a minimum clear height data table;

[0045] Fill the analysis boundary space projection plane with color to form a projection plane color block data table;

[0046] Analyze and process the minimum headroom data table and the projection plane color block data table to obtain the headroom analysis plan of each floor;

[0047] Set the clear height analysis data into the clear height analysis plan to obtain the merged clear height analysis plan.

[0048] In this embodiment, a virtual closed polyhedron three-dimensional space is first drawn within a specific area of ​​the BIM model. This space must have attributes such as length, width, height, name, area, and volume to define the room attributes. Each time a room is drawn, an attribute table is formed based on the name as the main classification, thereby completing the layout of the building room in the BIM model. The analysis boundary space of the room space range is identified, specifically including:

[0049] From the table, rooms with the same name and closed length and width boundaries are defined as one analysis boundary space; or rooms on the same floor and with the same name that have two open length and width boundaries are defined as two different analysis boundary spaces; and so on, the analysis boundary spaces for net height analysis are formed respectively, and the room name is the name of the analysis boundary space. Among them, the names of spaces with the same and open names are randomly numbered after the room name.

[0050] In this embodiment, obtaining the net height analysis subject within the analysis boundary space specifically includes:

[0051] Identify the upper layer of the floor, the lower layer of the ceiling, the bottom surface of objects in the space, and objects in the space, such as beams, components, equipment, and pipelines; if there are insulation and protection measures, identify the bottom surface of the corresponding object after the measures.

[0052] In this embodiment, the minimum clear height value in each analysis boundary space of all floors is obtained to form a minimum clear height data table, which specifically includes:

[0053] Calculate the vertical distances of the bottom surfaces of all objects or measures relative to the upper layer of the floor respectively, and use the bubble sort method to traverse the vertical distance values ​​of this space to calculate the minimum value, which is the minimum clear height value in this analysis boundary space, and also the minimum usable space clearance in this type of room. The corresponding object is the lowest analysis subject in this space, which can be inferred to be the most unfavorable point affecting the use of this type of space; and so on, obtain the minimum clear height value in each analysis boundary space of all floors, and finally form a minimum clearance height data table mainly classified by room name; the minimum clearance height data table includes room name, minimum clearance height, minimum analysis subject name and minimum position.

[0054] In this embodiment, color filling is performed on the analysis boundary space projection plane to form a projection plane color block data table, which specifically includes:

[0055] Each analysis boundary space is orthographically projected and randomly filled with colors. The projection plane color of each analysis boundary space is different. The projection plane color of the analysis boundary space with the same room name on each floor is the same. The plane boundary formed by the projection of the analysis boundary space is the range boundary of the color filling, and the space name enclosed by the filled boundary is defined as the name of the analysis boundary space, that is, the room name, so as to form the analysis boundary space projection plane color block map of each floor, and form a projection plane color block data table based on the room name; the projection plane color block data table includes the room name, the projection plane color block RGB value, the projection boundary position and the floor.

[0056] In this embodiment, the minimum clearance height data table and the projection plane color block data table are analyzed and processed, specifically including:

[0057] First, obtain the room name in the minimum headroom data table and the room name in the projection plane color block data table, match the same room name and merge the data to form a new data table. The new data table includes the room name, minimum headroom, minimum analysis subject name, minimum position, projection plane color block RGB value, projection boundary position and floor;

[0058] Then mark the room name and the lowest clear height in the projection plane, mark each analysis space once, and the marking position shall not exceed the projection boundary position; secondly, circle the lowest position of this analysis space in the projection plane, and the circled range shall be 100MM larger than the object at the lowest position and shall not exceed the projection boundary; and so on, to form the lowest clear height marking of each analysis space on each floor, which is the clear height analysis plan of each floor.

[0059] In this embodiment, the clear height analysis data is obtained according to the following method:

[0060] The minimum headroom data table and the projection plane color block data table are merged to form a merged data table; based on the merged data table, a new customizable headroom control attribute column is added for customizing the headroom control value of the room space;

[0061] The minimum headroom and headroom control of each room space type on each floor are analyzed. If the minimum headroom value is lower than the headroom control value, the minimum headroom value will be marked in red in the list to display the headroom analysis conclusion in the form of a visual analysis table. The headroom analysis data includes floor, room name, minimum headroom, headroom control value and headroom analysis conclusion.

[0062] In this embodiment, the space clear height analysis method of the present invention further includes: locating the room position in the analysis list, specifically including:

[0063] According to the data row corresponding to the selected room, the projection boundary position and floor of the corresponding room name are obtained, and the projection boundary of the corresponding room in the net height analysis plan of the corresponding floor is identified and located, so as to find and locate the analysis space in the BIM model.

[0064] Finally, the obtained clear height analysis data will be placed in the clear height analysis plan by floor, and can be exported to PDF or CAD format for use.

[0065] like Figure 2 As shown, the present invention also relates to a space clear height analysis system based on a BIM information model. The analysis system corresponds to the analysis method of the above embodiment and can be understood as a system for implementing the above analysis method. The system includes a room layout module, a clear height plane generation module, a clear height inspection module, and a result export module.

[0066] The room layout module generates room spaces and their attributes in the BIM model, and marks room names in the plan view;

[0067] The net height plane generation module: You can choose to use the lowest net height of the beam bottom or the lowest net height of the pipeline, set the fill color and style, place the room name, lowest net height, color, and legend annotation, check the floor for which the net height plane needs to be generated, generate the net height analysis plan, and then generate the net height plane. The generated net height plane will be displayed in the project browser floor plan-net height plane;

[0068] The net height check module: controls the input of the net height, executes the net height check command, automatically analyzes and checks whether the minimum net height meets the control net height requirement, displays the actual net height information of each room on each floor of the model in the net height check dialog box, marks the rooms that do not meet the net height requirement in red in the list box, and can automatically locate the net height position of the selected room and the net height plane of the floor where it is located. Select the room in the list window, click the search button, and locate the marked position of the net height information of the room;

[0069] The result export module exports the net height analysis results, merges the table including the floor, room name, minimum net height, net height control value and net height analysis conclusion into the net height analysis plan, and exports it into PDF or CAD format or Excel table.

[0070] In order to better understand the space clear height analysis method and system of the present invention, combined with Figure 3-6 Further explanation is as follows:

[0071] 1. Complete the room layout in the BIM model;

[0072] 2. Under Room as 3D Space Unit, select Analyze Beam Bottom or Pipeline Bottom, and check the floor for which you want to generate a clear height plane;

[0073] 3. Set the color and style of the space filling, place the legend, and complete the annotation of the room name, minimum clear height, color, and filling style;

[0074] 4. At the same time, the system automatically generates the clear height plane in the project browser floor plane-clear height plane;

[0075] 5. Execute the Clear Height Check command. The Clear Height Check dialog box contains a list box. The first column displays the minimum clear height information of each room on each floor of the model.

[0076] 6. At the same time, the second column in the above list box displays the corresponding standard control clear height requirements of the room. The system automatically marks the rooms that do not meet the clear height requirements in red in the list box;

[0077] 7. Select the room in the list window and click the Find button to locate the marked position of the room's net height information;

[0078] 8. Click the Export Table button in the Net Height Check window, and the system will export all the room net height information into an Excel table;

[0079] 9. Execute the Export Drawing button, and the system will export the net height analysis chart containing the table of attributes such as floor, room name, minimum clear height, clear height control value, clear height analysis conclusion, etc. into a drawing in PDF or CAD format.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A space clear height analysis method based on BIM information model, characterized by: include: Arrange the building rooms in the BIM model, identify the analysis boundary space of the room space range, and obtain the net height analysis subject within the analysis boundary space; Obtain the minimum clear height value in each analysis boundary space of all floors to form a minimum clear height data table; Fill the analysis boundary space projection plane with color to form a projection plane color block data table; Analyze and process the minimum headroom data table and the projection plane color block data table to obtain the headroom analysis plan of each floor; Set the clear height analysis data into the clear height analysis plan to obtain the merged clear height analysis plan.

2. The space clear height analysis method based on the BIM information model according to claim 1 is characterized in that: Identify the analytical boundary spaces of the room's spatial extent, including: The same room name and the room length and width boundaries that can form a closed boundary are defined as one analysis boundary space; or the same floor and the same room name if there are two unclosed spaces in the length and width boundaries, they are two different analysis boundary spaces; and so on, the analysis boundary spaces for net height analysis are formed respectively, and the room name is the analysis boundary space name. Among them, the names of the spaces with the same name and unclosed are randomly numbered after the room name.

3. The space clear height analysis method based on the BIM information model according to claim 1 is characterized in that: Get the net height analysis subject within the analysis boundary space, including: Identify the upper layer of the floor, the lower layer of the ceiling, the bottom surface of objects in the space, and objects in the space, such as beams, components, equipment, and pipelines; if there are insulation and protection measures, identify the bottom surface of the corresponding object after the measures.

4. The space clear height analysis method based on the BIM information model according to claim 1 is characterized in that: Get the minimum clear height value in each analysis boundary space of all floors to form a minimum clear height data table, including: Calculate the vertical distances of the bottom surfaces of all objects or measures relative to the upper layer of the floor respectively, and use the bubble sort method to traverse the vertical distance values ​​of this space to calculate the minimum value, which is the minimum clear height value in this analysis boundary space and also the minimum usable space clearance in such rooms. The corresponding object is the lowest analysis subject in this space; and so on, obtain the minimum clear height value in each analysis boundary space of all floors, and finally form a minimum clearance height data table mainly classified by room name; the minimum clearance height data table includes room name, minimum clearance height, minimum analysis subject name and minimum position.

5. The space clear height analysis method based on the BIM information model according to claim 1 is characterized in that: Fill the analysis boundary space projection plane with color to form a projection plane color block data table, including: Each analysis boundary space is orthographically projected and randomly filled with colors. The projection plane color of each analysis boundary space is different. The projection plane color of the analysis boundary space with the same room name on each floor is the same. The plane boundary formed by the projection of the analysis boundary space is the range boundary of the color filling, and the space name enclosed by the filled boundary is defined as the name of the analysis boundary space, that is, the room name, so as to form the analysis boundary space projection plane color block map of each floor, and form a projection plane color block data table based on the room name; the projection plane color block data table includes the room name, the projection plane color block RGB value, the projection boundary position and the floor.

6. The space clear height analysis method based on the BIM information model according to claim 1 is characterized in that: The minimum clearance height data table and the projection plane color block data table are analyzed and processed, including: First, obtain the room name in the minimum headroom data table and the room name in the projection plane color block data table, match the same room name and merge the data to form a new data table. The new data table includes the room name, minimum headroom, minimum analysis subject name, minimum position, projection plane color block RGB value, projection boundary position and floor; Then mark the room name and the lowest clear height in the projection plane, mark each analysis space once, and the marking position shall not exceed the projection boundary position; secondly, circle the lowest position of this analysis space in the projection plane, and the circled range shall be τ larger than the object at the lowest position and shall not exceed the projection boundary; and so on, to form the lowest clear height marking of each analysis space on each floor, which is the clear height analysis plan of each floor.

7. The space clear height analysis method based on the BIM information model according to claim 1 is characterized in that: Obtain clear height analysis data as follows: The minimum headroom data table and the projection plane color block data table are merged to form a merged data table; based on the merged data table, a new customizable headroom control attribute column is added for customizing the headroom control value of the room space; The minimum headroom and headroom control of each room space type on each floor are analyzed. If the minimum headroom value is lower than the headroom control value, the minimum headroom value will be marked in red in the list to display the headroom analysis conclusion in the form of a visual analysis table. The headroom analysis data includes floor, room name, minimum headroom, headroom control value and headroom analysis conclusion.

8. The space clear height analysis method based on the BIM information model according to claim 6 is characterized in that: Also includes: Locate the room location in the analysis list, including: According to the data row corresponding to the selected room, the projection boundary position and floor of the corresponding room name are obtained, and the projection boundary of the corresponding room in the net height analysis plan of the corresponding floor is identified and located, so as to find and locate the analysis space in the BIM model.

9. A space clear height analysis system based on BIM information model, characterized by: It includes room layout module, net height plane generation module, net height inspection module and result export module; The room layout module generates room spaces and their attributes in the BIM model, and marks room names in the plan view; The net height plane generation module: You can choose to use the lowest net height of the beam bottom or the lowest net height of the pipeline, set the fill color and style, place the room name, lowest net height, color, and legend annotation, check the floor for which the net height plane needs to be generated, generate the net height analysis plan, and then generate the net height plane. The generated net height plane will be displayed in the project browser floor plan-net height plane; The net height check module: controls the input of the net height, executes the net height check command, automatically analyzes and checks whether the minimum net height meets the control net height requirement, displays the actual net height information of each room on each floor of the model in the net height check dialog box, marks the rooms that do not meet the net height requirement in red in the list box, and can automatically locate the net height position of the selected room and the net height plane of the floor where it is located. Select the room in the list window, click the search button, and locate the marked position of the net height information of the room; The result export module exports the net height analysis results, merges the table including the floor, room name, minimum net height, net height control value and net height analysis conclusion into the net height analysis plan, and exports it into PDF or CAD format or Excel table.

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