A construction drawing intelligent review method and system based on BIM

Abstract

The present invention discloses a BIM-based intelligent construction drawing review method and system in the technical field of BIM construction drawing. When reviewing the BIM construction drawing, the elements of the BIM construction model are analyzed to obtain the construction design value, and the construction design value is compared with the construction design threshold. If the construction design value is greater than the construction design threshold, it means that the BIM construction model has an unreasonable design in spatial position, and an unreasonable construction design signal is generated. By detecting the number of unreasonable design areas in the BIM construction three-dimensional model, it is evaluated whether the BIM construction model is reasonably designed, which helps the reviewer to quickly identify the unreasonable design areas in the BIM construction model.

Description

Technical Field

[0001] The present invention relates to the technical field of BIM construction drawings, and in particular to a BIM-based construction drawing intelligent review method and system. Background Art

[0002] With the rapid development of the construction industry, the complexity and precision requirements in the architectural design and construction process are increasing. Traditional two-dimensional construction drawings have limitations in expressing three-dimensional spatial information, and it is difficult to intuitively display the spatial relationship and potential conflicts of the building structure. Therefore, the intelligent review device of the BIM construction drawing is used to conduct in-depth analysis of the elements in the BIM construction model.

[0003] The prior art discloses some invention patents in the field of government service technology, among which a construction drawing review method and system based on multi-drawing joint review is disclosed with application number CN114282883A. The construction drawing review method of multi-drawing joint review brings together various review matters scattered in various business competent departments or intermediary service agencies, establishes a review model of acceptance and joint approval, reduces the business processing procedures and running around of construction units and design units, and improves the overall efficiency of construction design review.

[0004] In the prior art, although the intelligent review device of BIM construction drawings can be used to conduct in-depth analysis of the elements in the BIM construction model, it is still necessary to further identify possible unreasonable designs in spatial positions by calculating the construction design values ​​between the elements. Once unreasonable designs in spatial positions are detected, the system will further analyze the unreasonable design areas and compare them with preset thresholds to determine whether the unreasonable design areas can still be adjusted. Finally, the system will mark all the unreasonable design areas found and generate a detailed review report for reference by designers and construction personnel, which will help the design team or construction management personnel to solve the unreasonable design problems that arise during the review one by one in order of priority.

[0005] Based on this, the present invention designs a BIM-based construction drawing intelligent review method and system to solve the unreasonable design problems that arise during the review, and the design team or construction management personnel solve them one by one in order of priority. Summary of the invention

[0006] The purpose of the present invention is to provide a BIM-based construction drawing intelligent review method and system to solve the problem of unreasonable design that occurs during the review by the design team or construction management personnel proposed in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] Step 1: When reviewing the BIM construction drawings, analyze the elements of the BIM construction model to obtain the construction design values;

[0009] Step 2: Based on the construction design value, analyze whether the BIM construction 3D model design is reasonable and generate construction design signals;

[0010] Among them, the construction design signal includes a reasonable construction design signal and an unreasonable construction design signal;

[0011] Step 3: When an unreasonable construction design signal is generated, the dimensional deviation degree value is obtained to obtain the design accuracy value, and the design accuracy value is compared with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The reasonable design area corresponding to the large component accuracy deviation signal is marked as an unadjustable construction area;

[0012] Step 4: Based on the large signal of component accuracy deviation, mark the non-adjustable construction areas in the BIM construction model in turn, and generate a construction drawing review report.

[0013] As a further solution of the present invention, the construction design value is obtained in the following manner:

[0014] Based on the BIM construction 3D model, the coordinates of each construction element in the BIM construction 3D model are obtained and marked as the element center coordinates;

[0015] Get the distance between the center coordinates of adjacent elements, mark it as the element design value, and compare the element design value with the element design range. The comparison process is as follows:

[0016] If the element design value does not exist within the element design range, an unreasonable element design signal is generated, and the adjacent element area corresponding to the unreasonable element design signal is marked as an unreasonable position design area;

[0017] The number of areas with unreasonable location design is obtained, and the ratio of the unreasonable location design areas to the total number of all areas in the BIM construction three-dimensional model is calculated to obtain the construction design value.

[0018] As a further solution of the present invention, the element design value is obtained in the following manner:

[0019] Substitute the Element X-Axis Distance, Element Y-Axis Distance, and Element Z-Axis Distance values ​​into the formula: , calculate the element design value JL, where Represented as the element X-axis distance value, Represented as the element Y-axis distance value, Represented as the element's Z-axis distance value, , , Expressed as a preset weight coefficient.

[0020] As a further solution of the present invention, the X-axis distance value of the element is obtained as follows:

[0021] Based on the BIM construction 3D model, the distance value between two adjacent elements in the X-axis direction is obtained, and the sum is added to obtain the average value to obtain the X-axis distance value of the element;

[0022] The way to obtain the Y-axis distance value of the element is:

[0023] Based on the BIM construction 3D model, the distance value between two adjacent elements in the Y-axis direction is obtained, and the sum is added to obtain the average value to obtain the Y-axis distance value of the element;

[0024] The way to obtain the Z-axis distance value of an element is:

[0025] Based on the BIM construction 3D model, the distance value between two adjacent elements in the Z-axis direction is obtained, and the sum is added to obtain the average value to obtain the Z-axis distance value of the element.

[0026] As a further solution of the present invention, when the construction design value is obtained, the construction design value is compared with the construction design threshold value, and the comparison process is as follows:

[0027] If the construction design value is greater than the construction design threshold, an unreasonable construction design signal is generated;

[0028] If the construction design value is less than the construction design threshold, a construction design reasonable signal is generated.

[0029] As a further solution of the present invention, the design accuracy value is obtained in the following manner:

[0030] The dimensional deviation values ​​of all components in each unreasonable design area are obtained, marked as dimensional deviation degree values, and all dimensional deviation degree values ​​are added and averaged to obtain the design accuracy value.

[0031] As a further solution of the present invention, the dimensional deviation degree value is obtained in the following manner:

[0032] In the unreasonable design area, the volume deviation ratio and the component surface area deviation ratio of each component are obtained respectively, and the volume deviation ratio and the component surface area deviation ratio are added together to obtain the dimensional deviation degree value.

[0033] As a further solution of the present invention, the component volume deviation ratio is obtained as follows:

[0034] In the unreasonable design area, the volume of each component is obtained and marked as the component volume value, and the component volume value is subtracted from the component standard volume value to obtain the volume deviation value;

[0035] The volume deviation value is calculated by ratio with the standard volume value of the component to obtain the volume deviation ratio;

[0036] The volume deviation ratios of all parts are added together and averaged to obtain the part volume deviation ratio;

[0037] The component surface area deviation ratio is obtained as follows:

[0038] In the unreasonable design area, the surface area of ​​each component is obtained, marked as the component surface area, and the surface area value of the component is subtracted from the standard surface area value of the component to obtain the surface area deviation value;

[0039] Calculate the ratio of the surface area deviation value to the standard surface area value of the component to obtain the component surface area deviation ratio;

[0040] The surface area deviation ratios of all parts are added together and averaged to obtain the part surface area deviation ratio.

[0041] As a further solution of the present invention, when a large component accuracy deviation signal is generated, the construction non-adjustable areas in the BIM construction model are marked in sequence, and a construction drawing review report is generated. The specific process is as follows:

[0042] Obtain the design accuracy values ​​corresponding to all non-adjustable construction areas in the BIM construction model, compare all the design accuracy values, and arrange and integrate them in order from large to small to obtain a set ;

[0043] Collection-based , according to the collection The construction non-adjustable area report is generated in order from small to large.

[0044] In a second aspect, the present invention provides a BIM-based construction drawing intelligent review system, the system comprising:

[0045] Review design module: When reviewing the BIM construction drawings, analyze the elements of the BIM construction model to obtain the construction design value;

[0046] Analysis and design module: Based on the construction design value, analyze whether the BIM construction 3D model design is reasonable and generate construction design signals;

[0047] Among them, the construction design signal includes a reasonable construction design signal and an unreasonable construction design signal;

[0048] Construction evaluation module: When an unreasonable construction design signal is generated, the dimensional deviation degree value is obtained to obtain the design accuracy value, and the design accuracy value is compared with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The reasonable design area corresponding to the large component accuracy deviation signal is marked as an unadjustable construction area;

[0049] Report generation module: Based on the large signal of component accuracy deviation, the non-adjustable construction areas in the BIM construction model are marked in sequence, and a construction drawing review report is generated.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] 1. The present invention analyzes the elements of the BIM construction model when reviewing the BIM construction drawings to obtain the construction design value, and compares the construction design value with the construction design threshold. If the construction design value is greater than the construction design threshold, it means that the BIM construction model has unreasonable design in spatial position, and an unreasonable construction design signal is generated. By detecting the number of unreasonable design areas in the BIM construction three-dimensional model, the present invention evaluates whether the BIM construction model is reasonably designed, which helps reviewers to quickly identify unreasonable design areas in the BIM construction model.

[0052] 2. When the present invention generates an unreasonable construction design signal, it obtains the dimensional deviation degree value, obtains the design accuracy value, and compares the design accuracy value with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The reasonable design area corresponding to the large component accuracy deviation signal is marked as an unadjustable construction area. Therefore, through further review of the unreasonable design area, it is evaluated whether the component accuracy in the unreasonable design area meets the standard, so as to quickly review and obtain the position of the unadjustable construction area.

[0053] 3. When the present invention generates a large signal of component accuracy deviation, the design accuracy values ​​corresponding to all construction non-adjustable areas in the BIM construction model are obtained, all the design accuracy values ​​are compared, and they are arranged and integrated in order from large to small to obtain a set , and follow the collection The report of the non-adjustable construction areas is generated in order from large to small. By comparing and sorting the design accuracy values ​​of all non-adjustable construction areas, it is possible to clearly review and identify which areas have unreasonable designs. This helps the design team or construction management personnel to solve the unreasonable design problems that arise during the review one by one according to the priority order. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a flowchart of Embodiment 1 of the present invention;

[0055] Figure 2 is a flowchart of Embodiment 2 of the present invention;

[0056] Figure 3 is a flowchart of Embodiment 3 of the present invention;

[0057] Figure 4 It is a system block diagram of embodiment 4 of the present invention. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] Embodiment 1:

[0060] See also Figure 1 As shown, by performing intelligent review on BIM construction drawings, the method can be executed by an intelligent review device based on BIM construction drawings, which can be implemented in the form of hardware and / or software. The intelligent review device based on BIM construction drawings can be configured in an electronic device with network communication function. The intelligent review method for construction drawings based on BIM described in an embodiment of the present invention includes the following modules:

[0061] Step 1: When reviewing the BIM construction drawings, analyze the elements of the BIM construction model to obtain the construction design values;

[0062] In some embodiments, when reviewing the BIM construction drawing, the elements of the BIM construction model are analyzed by the intelligent review device of the BIM construction drawing, and the analysis process is as follows:

[0063] The construction design value is obtained as follows:

[0064] Based on the BIM construction model, a three-dimensional model is established, in which the X-axis represents the horizontal distance, the Y-axis represents the horizontal distance, and the Z-axis represents the height distance. The BIM construction model is substituted into the three-dimensional model to obtain the BIM construction three-dimensional model;

[0065] Based on the BIM construction 3D model, the coordinates of each construction element in the BIM construction 3D model are obtained and marked as the element center coordinates, where the element coordinates represent the position coordinates of the main structure, facility and equipment structure, and decoration and renovation structure in the BIM construction model;

[0066] It should be noted that the element center coordinates refer to the coordinates of the center position of an element in the BIM construction 3D model, such as the center of a door, the center of a window, etc.

[0067] Get the distance between the center coordinates of adjacent elements, mark it as the element design value, and compare the element design value with the element design range. The comparison process is as follows:

[0068] If the element design value exists in the element design range, it means that the distance between adjacent elements is reasonable, and the probability of overlapping in spatial position is small, and an element design reasonable signal is generated, and the adjacent element area corresponding to the element design reasonable signal is marked as a design reasonable area;

[0069] If the element design value does not exist within the element design range, it means that the distance between adjacent elements is unreasonable, and the probability of overlapping in spatial position is high, and an unreasonable element design signal is generated, and the adjacent element area corresponding to the unreasonable element design signal is marked as an unreasonable design area;

[0070] Obtain the number of unreasonable design areas, calculate the ratio of the unreasonable design areas to the total number of all areas in the BIM construction 3D model, and obtain the construction design value;

[0071] The meaning of the construction design value is: a quantitative index of the possibility of spatial overlap between adjacent construction elements in the BIM construction three-dimensional model. This value is obtained by calculating the ratio of the number of areas with unreasonable position design to the total number of all areas in the BIM construction three-dimensional model. Specifically, if the element design value does not exist within the element design range, these areas are marked as unreasonable design areas. On the contrary, if the element design value exists within the element design range, these areas are marked as reasonable position design areas.

[0072] Exemplarily, the element design value is obtained in the following manner:

[0073] Substitute the Element X-Axis Distance, Element Y-Axis Distance, and Element Z-Axis Distance values ​​into the formula: , calculate the element design value JL, where Represented as the element X-axis distance value, Represented as the element Y-axis distance value, Represented as the element's Z-axis distance value, , , Expressed as a preset weight coefficient;

[0074] First, the specific method for obtaining the X-axis distance value of an element is:

[0075] Based on the BIM construction 3D model, the distance value between two adjacent elements in the X-axis direction is obtained, and the sum is added to obtain the average value to obtain the X-axis distance value of the element;

[0076] It is necessary to further explain that the meaning of the element X-axis distance value is: in the BIM construction 3D model, the relative position relationship of each construction element (such as the main structure, facility and equipment structure, decoration and renovation structure, etc.) in the X-axis direction. This distance value is obtained by measuring the distance between two adjacent elements in the X-axis direction and calculating the average value of these distances. It reflects the compactness of the horizontal layout or the size of the interval of the elements, and is an important indicator for evaluating whether there is a risk of spatial overlap between elements.

[0077] The second specific method for obtaining the Y-axis distance value of an element is:

[0078] Based on the BIM construction 3D model, the distance value between two adjacent elements in the Y-axis direction is obtained, and the sum is added to obtain the average value to obtain the Y-axis distance value of the element;

[0079] It is necessary to further explain that the Y-axis distance value of an element means the relative position relationship of each construction element (such as the main structure, facility and equipment structure, decoration and renovation structure, etc.) in the Y-axis direction in the BIM construction 3D model. This distance value is obtained by measuring the distance between two adjacent elements in the Y-axis direction and calculating the average value of these distances. It reflects the compactness of the layout or the size of the interval in the horizontal and vertical directions of the elements, and is an important indicator for evaluating whether there is a risk of spatial overlap between elements.

[0080] The third specific method for obtaining the Z-axis distance value of an element is:

[0081] Based on the BIM construction 3D model, the distance value between two adjacent elements in the Z-axis direction is obtained, and the sum is added to obtain the average value to obtain the Z-axis distance value of the element;

[0082] Among them, it is necessary to further explain: It is necessary to further explain that the meaning of the element Z-axis distance value is: in the BIM construction three-dimensional model, the relative position relationship of each construction element (such as the main structure, facility and equipment structure, decoration and decoration structure, etc.) in the Z-axis direction. This distance value is obtained by measuring the distance between two adjacent elements in the Z-axis direction and calculating the average value of these distances. It reflects the compactness of the layout or the size of the interval in the height direction of the elements. It is an important indicator for evaluating whether there is a risk of spatial overlap between elements;

[0083] Step 2: Based on the construction design value, analyze whether the BIM construction 3D model design is reasonable and generate construction design signals;

[0084] Among them, the construction design signal includes a reasonable construction design signal and an unreasonable construction design signal;

[0085] In some embodiments, when the construction design value is obtained, the construction design value is compared with the construction design threshold value, and the comparison process is as follows:

[0086] If the construction design value is greater than the construction design threshold, it means that the BIM construction model has unreasonable design in terms of spatial position, and an unreasonable construction design signal is generated;

[0087] If the construction design value is less than the construction design threshold, it means that the BIM construction model has a reasonable design in terms of spatial position, and a reasonable construction design signal is generated;

[0088] The technical solution of the embodiment of the present invention is mainly as follows: when reviewing the BIM construction drawings, the elements of the BIM construction model are analyzed to obtain the construction design value, and the construction design value is compared with the construction design threshold. If the construction design value is greater than the construction design threshold, it means that the BIM construction model has unreasonable design in spatial position, and an unreasonable construction design signal is generated. By detecting the number of unreasonable design areas in the BIM construction three-dimensional model, whether the BIM construction model is reasonably designed is evaluated, which helps reviewers quickly identify areas with unreasonable design in the BIM construction model.

[0089] Embodiment 2:

[0090] Based on Example 1, please refer to Figure 2 As shown, a BIM-based construction drawing intelligent review method according to an embodiment of the present invention comprises the following steps:

[0091] Step 3: Based on the unreasonable construction design signal, obtain the design accuracy value, analyze whether the component dimensional accuracy in the unreasonable design area meets the standard, and generate a component accuracy deviation signal;

[0092] Wherein, the component accuracy deviation signal includes a component accuracy deviation large signal and a component accuracy deviation small signal;

[0093] In some embodiments, when an unreasonable construction design signal is generated, a dimensional deviation degree value is obtained to obtain a design accuracy value, and the design accuracy value is compared with a design accuracy threshold. The comparison process is as follows:

[0094] If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component size accuracy deviation is large, and a component accuracy large deviation signal is generated, and the reasonable design area corresponding to the generated component accuracy large deviation signal is marked as an unadjustable construction area;

[0095] If the design accuracy value is less than or equal to the design accuracy threshold, it means that in the unreasonable design area, the component size accuracy deviation is small, and a small component accuracy deviation signal is generated, and the reasonable design area corresponding to the generated small component accuracy deviation signal is marked as an adjustable construction area;

[0096] Exemplarily, the design accuracy value is obtained in the following manner:

[0097] Obtain the dimensional deviation values ​​of all components in each unreasonable design area, mark them as dimensional deviation degree values, add up and average all dimensional deviation degree values ​​to obtain the design accuracy value;

[0098] It needs to be further explained that the meaning of the design accuracy value is: in the BIM construction 3D model, for all components marked as unreasonable design areas, the quantitative evaluation index of their dimensional accuracy. This value is obtained by calculating the average value of all dimensional deviation values ​​in these areas. Specifically, it reflects the degree of deviation between the component size and the design requirements in the unreasonable design area. If the design accuracy value is large, it means that there is a large deviation between the dimensions of these components and the design standards, that is, the component dimensional accuracy is poor; conversely, if the design accuracy value is small or close to the design accuracy threshold, it means that the deviation between the dimensions of these components and the design standards is small, that is, the component dimensional accuracy is high.

[0099] Specifically, the method for obtaining the dimensional deviation value is as follows:

[0100] In the unreasonable design area, the volume deviation ratio and the surface area deviation ratio of each component are obtained respectively, and the volume deviation ratio and the surface area deviation ratio are added together to obtain the dimensional deviation degree value;

[0101] The method for obtaining the component volume deviation ratio is as follows:

[0102] In the unreasonable design area, the volume of each component is obtained and marked as the component volume value, and the component volume value is subtracted from the component standard volume value to obtain the volume deviation value;

[0103] The volume deviation value is calculated by ratio with the standard volume value of the component to obtain the volume deviation ratio;

[0104] The volume deviation ratios of all parts are added together and averaged to obtain the part volume deviation ratio;

[0105] The component surface area deviation ratio is obtained as follows:

[0106] In the unreasonable design area, the surface area of ​​each component is obtained, marked as the component surface area, and the surface area value of the component is subtracted from the standard surface area value of the component to obtain the surface area deviation value;

[0107] Calculate the ratio of the surface area deviation value to the standard surface area value of the component to obtain the component surface area deviation ratio;

[0108] The surface area deviation ratios of all parts are added together and averaged to obtain the surface area deviation ratio of the parts;

[0109] The specific implementation plan of the embodiment of the present invention is: when an unreasonable construction design signal is generated, the dimensional deviation degree value is obtained, the design accuracy value is obtained, and the design accuracy value is compared with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The reasonable design area corresponding to the large component accuracy deviation signal is marked as an unadjustable construction area. Therefore, through further review of the unreasonable design area, it is evaluated whether the component accuracy in the unreasonable design area meets the standard, so as to quickly review and obtain the position of the unadjustable construction area.

[0110] Embodiment 3:

[0111] On the basis of Example 1 and Example 2, Figure 3 As shown, a BIM-based construction drawing intelligent review method according to an embodiment of the present invention comprises the following steps:

[0112] Step 4: Based on the large signal of component accuracy deviation, mark the non-adjustable construction areas in the BIM construction model in sequence and generate a construction drawing review report;

[0113] In some embodiments, when a large component accuracy deviation signal is generated, the construction non-adjustable areas in the BIM construction model are marked in sequence, and a construction drawing review report is generated. The specific process is as follows:

[0114] For example, the design accuracy values ​​corresponding to all non-adjustable construction areas in the BIM construction model are obtained, all the design accuracy values ​​are compared, and they are arranged and integrated in order from large to small to obtain a set ;

[0115] Collection-based , according to the collection Generate construction non-adjustable area reports in order from small to large;

[0116] Among them, it is necessary to further explain that: according to the design accuracy values ​​corresponding to all the non-adjustable construction areas, all the design accuracy values ​​are compared. If the design accuracy value corresponding to the non-adjustable construction area is larger, it means that the design of this area is more unreasonable. If the spatial overlap value corresponding to the spatial overlap area is smaller, it means that the design of this area is less unreasonable.

[0117] The technical solution of the embodiment of the present invention is mainly as follows: when a large signal of component accuracy deviation is generated, the design accuracy values ​​corresponding to all construction non-adjustable areas in the BIM construction model are obtained, all the design accuracy values ​​are compared, and they are arranged and integrated in order from large to small to obtain a set , and follow the collection The report of the non-adjustable construction areas is generated in order from large to small. By comparing and sorting the design accuracy values ​​of all non-adjustable construction areas, it is possible to clearly review and identify which areas have unreasonable designs. This helps the design team or construction management personnel to solve the unreasonable design problems that arise during the review one by one according to the priority order.

[0118] Embodiment 4:

[0119] Based on Example 1, Example 2 and Example 3, please refer to Figure 4 As shown, a BIM-based construction drawing intelligent review system according to an embodiment of the present invention includes:

[0120] Review design module: When reviewing the BIM construction drawings, analyze the elements of the BIM construction model to obtain the construction design value;

[0121] Analysis and design module: Based on the construction design value, analyze whether the BIM construction 3D model design is reasonable and generate construction design signals;

[0122] Among them, the construction design signal includes a reasonable construction design signal and an unreasonable construction design signal;

[0123] Construction evaluation module: When an unreasonable construction design signal is generated, the dimensional deviation degree value is obtained to obtain the design accuracy value, and the design accuracy value is compared with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The reasonable design area corresponding to the large component accuracy deviation signal is marked as an unadjustable construction area;

[0124] Report generation module: Based on the large signal of component accuracy deviation, the non-adjustable construction areas in the BIM construction model are marked in sequence, and a construction drawing review report is generated.

[0125] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A BIM-based construction drawing intelligent review method, comprising the following steps, characterized in that: Step 1: When reviewing the BIM construction drawings, analyze the elements of the BIM construction model to obtain the construction design values; The construction design value is obtained as follows: Based on the BIM construction 3D model, the coordinates of each construction element in the BIM construction 3D model are obtained and marked as the element center coordinates; Get the distance between the center coordinates of adjacent elements, mark it as the element design value, and compare the element design value with the element design range. The comparison process is as follows: If the element design value does not exist within the element design range, an unreasonable element design signal is generated, and the adjacent element area corresponding to the unreasonable element design signal is marked as an unreasonable position design area; Obtain the number of unreasonable location design areas, calculate the ratio of unreasonable location design areas to the total number of all areas in the BIM construction 3D model, and obtain the construction design value; Step 2: Based on the construction design value, analyze whether the BIM construction 3D model design is reasonable and generate construction design signals; Among them, the construction design signal includes a reasonable construction design signal and an unreasonable construction design signal; The element design value is obtained as follows: Substitute the Element X-Axis Distance, Element Y-Axis Distance, and Element Z-Axis Distance values ​​into the formula: , calculate the element design value JL, where, Represented as the element X-axis distance value, Represented as the element Y-axis distance value, Expressed as the element's Z-axis distance value, Expressed as a preset weight coefficient; The way to obtain the X-axis distance value of an element is: Based on the BIM construction 3D model, the distance value between two adjacent elements in the X-axis direction is obtained, and the sum is added to obtain the average value to obtain the X-axis distance value of the element; The way to obtain the Y-axis distance value of the element is: Based on the BIM construction 3D model, the distance value between two adjacent elements in the Y-axis direction is obtained, and the sum is added to obtain the average value to obtain the Y-axis distance value of the element; The way to obtain the Z-axis distance value of an element is: Based on the BIM construction 3D model, the distance value between two adjacent elements in the Z-axis direction is obtained, and the sum is added to obtain the average value to obtain the Z-axis distance value of the element; When the construction design value is obtained, the construction design value is compared with the construction design threshold. The comparison process is as follows: If the construction design value is greater than the construction design threshold, an unreasonable construction design signal is generated; If the construction design value is less than the construction design threshold, a construction design reasonable signal is generated; Step 3: When an unreasonable construction design signal is generated, the dimensional deviation degree value is obtained to obtain the design accuracy value, and the design accuracy value is compared with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The unreasonable design area corresponding to the generated large component accuracy deviation signal is marked as a construction non-adjustable area; Step 4: Based on the large signal of component accuracy deviation, mark the non-adjustable construction areas in the BIM construction model in turn, and generate a construction drawing review report.

2. According to the BIM-based construction drawing intelligent review method of claim 1, it is characterized by: The design accuracy value is obtained in the following way: The dimensional deviation values ​​of all components in each unreasonable design area are obtained, marked as dimensional deviation degree values, and all dimensional deviation degree values ​​are added and averaged to obtain the design accuracy value.

3. The method for intelligent review of construction drawings based on BIM according to claim 1, characterized in that: When a large component accuracy deviation signal is generated, the non-adjustable construction areas in the BIM construction model are marked in sequence, and a construction drawing review report is generated. The specific process is as follows: Obtain the design accuracy values ​​corresponding to all non-adjustable construction areas in the BIM construction model, compare all the design accuracy values, and arrange and integrate them in order from large to small to obtain a set ; Collection-based , according to the collection The construction non-adjustable area report is generated in order from small to large.

4. A BIM-based construction drawing intelligent review system, characterized in that: The system is used to execute the method described in any one of claims 1 to 3, and the system comprises: Review design module: When reviewing the BIM construction drawings, analyze the elements of the BIM construction model to obtain the construction design value; Analysis and design module: Based on the construction design value, analyze whether the BIM construction 3D model design is reasonable and generate construction design signals; Among them, the construction design signal includes a reasonable construction design signal and an unreasonable construction design signal; Construction evaluation module: When an unreasonable construction design signal is generated, the dimensional deviation degree value is obtained, the design accuracy value is obtained, and the design accuracy value is compared with the design accuracy threshold. If the design accuracy value is greater than the design accuracy threshold, it means that in the unreasonable design area, the component dimensional accuracy deviation is large, and a large component accuracy deviation signal is generated. The unreasonable design area corresponding to the large component accuracy deviation signal is marked as an unadjustable construction area; Report generation module: Based on the large signal of component accuracy deviation, the non-adjustable construction areas in the BIM construction model are marked in sequence, and a construction drawing review report is generated.

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