BIM design method for a thermally insulated curtain wall construction

Abstract

The application relates to the technical field of building structure BIM design, in particular to a BIM design method for a heat-insulating curtain wall structure, which comprises the following steps: establishing a curved curtain wall BIM model, dividing curtain wall plates into various curved curtain wall plates, and counting the warping rates of the various curved curtain wall plates; obtaining the warping change complexity of each curved curtain wall plate through the warping rate change complexity between each curved curtain wall plate and an adjacent curtain wall plate, combining the distribution change trend of the warping rate difference between different curved curtain wall plates, obtaining the conspicuousness characteristic values of the various curved curtain wall plates, then obtaining the curved surface deviation degrees of the various curved curtain wall plates, so as to obtain the abnormal curved surface evaluation values of the various curved curtain wall plates, identify abnormal curtain wall plates, adjust the abnormal curtain wall plates through Revit software, and realize the BIM design of the curtain wall structure. The application can improve the BIM design effect of the heat-insulating curtain wall structure.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building structure BIM design, in particular to a BIM design method for a heat-insulating curtain wall structure. BACKGROUND

[0002] In the structural design of a heat-insulating curtain wall, traditional technology cannot meet the high complexity and diversity of curtain wall design, and the emergence of BIM technology (Building Information Modeling) makes up for the defects of traditional technology. Through BIM technology, a three-dimensional model of the heat-insulating curtain wall can be visually displayed, and the three-dimensional model of the heat-insulating curtain wall can be modified and deepened through BIM technology, thereby improving the efficiency and quality of the heat-insulating curtain wall structural design and providing strong support for subsequent curtain wall engineering construction and management.

[0003] In the BIM design of the heat-insulating curtain wall structure, the workload of the heat-insulating curtain wall structure design is very tedious and complex, and the preliminary generation of the curved surface of the heat-insulating curtain wall by using Revit software is prone to visual discontinuity or abruptness. Therefore, the abnormal curved surface in the heat-insulating building curtain wall needs to be deepened to ensure the aesthetic effect of the three-dimensional model of the heat-insulating curtain wall. However, due to the complexity of the heat-insulating curtain wall structure, the existing technology does not fully consider the accurate identification of the abnormal curved surface in the heat-insulating building curtain wall according to the difference in the abruptness of the curved surface of the heat-insulating curtain wall, which easily leads to poor accuracy in identifying the abnormal curved surface in the heat-insulating building curtain wall, thereby failing to accurately deepen the abnormal curved surface in the heat-insulating building curtain wall. SUMMARY

[0004] To solve the above technical problems, the application provides a BIM design method for a heat-insulating curtain wall structure to solve the existing problems.

[0005] The BIM design method for the heat-insulating curtain wall structure provided by the application adopts the following technical scheme:

[0006] One embodiment of the application provides a BIM design method for a heat-insulating curtain wall structure, comprising the following steps:

[0007] establishing a curved surface curtain wall BIM model and dividing the curtain wall plate into various curved surface curtain wall plates, and counting the warping rates of the various curved surface curtain wall plates;

[0008] obtaining the warping change complexity of each curved surface curtain wall plate through the change degree and change complexity of the warping rate difference between each curved surface curtain wall plate and the adjacent curtain wall plate, and obtaining the abruptness characteristic value of each curved surface curtain wall plate in combination with the distribution change trend of the warping rate difference between different curved surface curtain wall plates;

[0009] The salience characteristic values of all curved curtain wall panels are clustered, the curved surface deviation degrees of the curved curtain wall panels are obtained according to the difference between the salience characteristic value of each curved curtain wall panel and the average level in the cluster where the curved curtain wall panel is located, and the local density of the salience characteristic value of each curved curtain wall panel, and the abnormal curved surface evaluation value of each curved curtain wall panel is obtained in combination with the salience characteristic value;

[0010] The abnormal curtain wall panels of the curved curtain wall BIM model are identified based on the abnormal curved surface evaluation value, and the abnormal curtain wall panels are adjusted through the Revit software, so as to realize the BIM design of the curtain wall structure.

[0011] The method for obtaining the warping change complexity of each curved curtain wall panel comprises the following steps:

[0012] The warping difference sequence of each curved curtain wall panel is constructed by using the warping rate difference between each curved curtain wall panel and each adjacent curtain wall panel, and the product of the permutation entropy of all elements in the first-order difference sequence of the warping difference sequence and the sum of all elements in the first-order difference sequence is taken as the warping change complexity of each curved curtain wall panel.

[0013] Preferably, the plurality of curved curtain wall panels closest to each curved curtain wall panel are taken as the adjacent curtain wall panels of each curved curtain wall panel.

[0014] Preferably, the absolute difference between the warping rates of each curved curtain wall panel and each adjacent curtain wall panel is calculated, and the warping difference sequence of each curved curtain wall panel is arranged in ascending order according to the numerical value.

[0015] Preferably, the method for calculating the salience characteristic value of each curved curtain wall panel comprises the following steps:

[0016] , wherein, is the salience characteristic value of the s th curved curtain wall panel, is the warping change complexity of the s th curved curtain wall panel, is the fitting slope of the warping difference sequence of the s th curved curtain wall panel, is the fitting slope of the warping difference sequence corresponding to the g th adjacent curtain wall panel of the s th curved curtain wall panel.

[0017] Preferably, the warping difference sequence of each curved curtain wall panel is linearly fitted, and the slope of the fitted straight line is taken as the fitting slope of the warping difference sequence of each curved curtain wall panel.

[0018] Preferably, the DPC density peak value clustering algorithm is used to cluster the salience characteristic values of all curved curtain wall panels, so as to obtain the local density of the salience characteristic value of each curved curtain wall panel.

[0019] Preferably, the calculation method of the curvature deviation degree of each curved curtain wall panel is as follows:

[0020] In the formula, is the curvature deviation degree of the s-th curved curtain wall panel, is the conspicuousness feature value of the s-th curved curtain wall panel, is the mean value of all conspicuousness feature values in the cluster cluster in which the conspicuousness feature value of the s-th curved curtain wall panel is located, is the local density of the conspicuousness feature value of the s-th curved curtain wall panel, is a constant to avoid a denominator of 0.

[0021] Preferably, the abnormality evaluation value of each curved curtain wall panel is the normalized result of the product of the conspicuousness feature value and the curvature deviation degree of each curved curtain wall panel.

[0022] Preferably, the identification step of the abnormal curtain wall panel of the curved curtain wall BIM model is as follows:

[0023] Threshold segmentation is performed on the abnormality evaluation values of all curved curtain wall panels in the curved curtain wall BIM model, and the curved curtain wall panel corresponding to the abnormality evaluation value greater than the segmentation threshold is taken as the abnormal curtain wall panel of the curved curtain wall BIM model.

[0024] The present application has at least the following beneficial effects:

[0025] The present application extracts the warping change complexity between different curved curtain wall panels in the local area through local analysis between adjacent curved curtain wall panels, and accurately measures the conspicuousness feature caused by the curved curtain wall panel by combining the change between the fitting slopes of different warping difference sequences, so that subsequent accurate identification of the abnormal curved surface of the thermal insulation building curtain wall can fully consider the conspicuousness difference of the thermal insulation curtain surface.

[0026] Further, the overall analysis is performed in a clustering manner, and the local density feature of the conspicuousness feature value of each curved curtain wall panel is combined to accurately measure the deviation degree of the conspicuousness between the curved curtain wall panel and the overall curved curtain wall, so that the subsequent identification of the abnormal curved surface can consider the stability of the overall thermal insulation curtain wall, and the accuracy of the identification of the abnormal curved surface in the thermal insulation building curtain wall is improved.

[0027] The present application considers the conspicuousness feature and the curvature deviation feature of the curved curtain wall panel, accurately evaluates each curved curtain wall panel in the curved curtain wall BIM model, and accurately identifies the abnormal curved surface of the thermal insulation building curtain wall through a threshold segmentation algorithm, thereby improving the accuracy of the subsequent deep processing of the abnormal curved surface in the thermal insulation building curtain wall. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions and advantages of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0029] Figure 1 A step flow chart of a BIM design method of a thermal insulation curtain wall structure provided by the present application. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined purpose of the application, the specific embodiments, structure, features and effects of the BIM design method of a thermal insulation curtain wall structure according to the present application are described in detail as follows in combination with the drawings and preferred embodiments. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0031] Unless otherwise defined, such as the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the circuit structure, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such article or device. Without more limitation, the element defined by the phrase "including one" does not exclude the presence of additional identical elements in the article or device including the element. In addition, the term "and / or" used herein includes any and all combinations of one or more related listed items. All technical and scientific terms used herein have the same meaning as understood by those skilled in the art of the technology to which the present application belongs.

[0032] The specific scheme of the BIM design method of a thermal insulation curtain wall structure provided by the present application is described in detail below in combination with the drawings.

[0033] The BIM design method of a thermal insulation curtain wall structure provided by one embodiment of the present application, in particular, please refer to Figure 1 , including the following steps:

[0034] Step 1: Establish a curved curtain wall BIM model and divide the curtain wall panels into various curved curtain wall panels, and count the warping rates of the curved curtain wall panels.

[0035] The thermal insulation curtain wall structure design includes curtain wall type design, structure design, function design and the like, and the building designer needs to ensure the safety and stability of the building curtain wall, and at the same time needs to ensure the good functional requirements such as heat preservation, thermal insulation and waterproof of the building curtain wall, so it is usually necessary to strictly audit the complex thermal insulation curtain wall structure design. Therefore, the CAD file of the thermal insulation curved surface curtain wall structure design after auditing is obtained, and the CAD file of the thermal insulation curved surface curtain wall structure design is converted into a curved surface curtain wall BIM model by using Revit software, wherein the construction of the curved surface curtain wall BIM model is a known technology, and the specific process will not be described again.

[0036] Further, in order to facilitate subsequent deepening of the curved surface in the curved surface curtain wall BIM model, preferably, in the embodiment, the curved surface curtain wall in the curved surface curtain wall BIM model is segmented according to the grid in the curved surface curtain wall BIM model by using Rhino + Grasshopper parameterization software, to obtain each curved surface curtain wall plate in the curved surface curtain wall BIM model, and further, the Rhino + Grasshopper parameterization software calculates the warping rate of each curved surface curtain wall plate in the curved surface curtain wall BIM model.

[0037] Wherein, the curtain wall plate segmentation and warping rate calculation by Rhino + Grasshopper parameterization software are all known technologies, and the specific process will not be described again.

[0038] Step 2: Obtain the warping change complexity of each curved surface curtain wall plate through the change degree and change complexity of the warping rate difference between each curved surface curtain wall plate and the adjacent curtain wall plate, and obtain the conspicuousness characteristic value of each curved surface curtain wall plate in combination with the distribution change trend of the warping rate difference between different curved surface curtain wall plates.

[0039] In the BIM design of the thermal insulation curtain wall structure, the curved surface of the thermal insulation curtain wall is easily generated by using Revit software, which may be visually discontinuous or conspicuous, and the abnormal curved surface of the thermal insulation building curtain wall needs to be deepened, so as to avoid the design error in the curved surface curtain wall BIM model design. However, the prior art does not fully consider the accurate identification of the abnormal curved surface of the thermal insulation building curtain wall according to the conspicuousness difference of the thermal insulation curtain wall curved surface, so that the subsequent deepening processing cannot be carried out for the abnormal curved surface in the curved surface curtain wall BIM model, so as to effectively improve the design quality of the thermal insulation curtain wall. Therefore, in order to accurately deepening processing of the abnormal curved surface of the thermal insulation building curtain wall, the accurate identification of the abnormal curved surface of the thermal insulation building curtain wall according to the conspicuousness difference of the thermal insulation curtain wall curved surface needs to be fully considered.

[0040] In order to analyze the abruptness between each curved curtain wall plate and its adjacent curved curtain wall plate in the curved curtain wall BIM model, preferably, in the embodiment, the M curved curtain wall plates closest to each curved curtain wall plate in the Euclidean distance are recorded as the M adjacent curtain wall plates of each curved curtain wall plate, and M is 8 in the embodiment, and the implementer can adaptively set it according to actual needs.

[0041] Further, in the embodiment, the absolute difference between the warping rate of each curved curtain wall plate and all adjacent curtain wall plates thereof is calculated, the corresponding absolute difference between each curved curtain wall plate and all adjacent curtain wall plates thereof is arranged in order from small to large, and if there are multiple equal data, the equal data is randomly arranged, and after the arrangement, the warping difference sequence of each curved curtain wall plate in the curved curtain wall BIM model is obtained, reflecting the increasing change of the warping difference between each curved curtain wall plate and its adjacent curved curtain wall plate.

[0042] For a complex curved curtain wall BIM model, there is a visual discontinuity or abruptness on the curved curtain wall, which affects the stability and safety of the thermal insulation curtain wall. In order to accurately analyze the abruptness caused by different curved curtain wall plates, the first order difference sequence of the warping difference sequence is calculated, the higher the increasing change of the warping difference between different curved curtain wall plates, and the greater the randomness of the increasing change of the warping difference, the more complex the warping change between the curved curtain wall plate and its adjacent curved curtain wall plate, and the more likely the curved curtain wall plate to cause visual abruptness.

[0043] Therefore, the permutation entropy of all elements in the first order difference sequence of the warping difference sequence is calculated, and the product of the permutation entropy and the sum of all elements in the first order difference sequence is recorded as the warping change complexity of each curved curtain wall plate. The greater the warping change complexity, the more complex the warping change between the curved curtain wall plate and its adjacent curved curtain wall plate, wherein the calculation of the permutation entropy is a known technology, and the specific process will not be described again.

[0044] At the same time, the warping difference sequence of each curved curtain wall plate is taken as the input of the least square linear fitting algorithm, and the fitting slope of the warping difference sequence is obtained through the least square linear fitting algorithm. If the corresponding fitting slopes between different curved curtain wall plates in a local area of the curved curtain wall BIM model are more inconsistent, it means that the visual abruptness in the local area of the curved curtain wall BIM model is stronger, and the curved curtain wall plates in the local area need to be further processed.

[0045] Through the above analysis, the abruptness characteristic value of each curved curtain wall plate in the curved curtain wall BIM model is calculated:

[0046] ;

[0047] wherein, is the salience feature value of the s-th curved curtain wall panel, is the warping variation complexity of the s-th curved curtain wall panel, is the fitting slope of the warping difference sequence of the s-th curved curtain wall panel, is the fitting slope of the warping difference sequence corresponding to the g-th adjacent curtain wall panel of the s-th curved curtain wall panel.

[0048] The salience feature value reflects the size of the salience feature caused by each curved curtain wall panel in the curved curtain wall BIM model. The larger the salience feature value, the worse the visual effect of the curved curtain wall panel, and the more it affects the stability and safety of the overall thermal insulation curtain wall, and the more it needs to be further processed to ensure the smoothness of the curved surface of the thermal insulation building curtain wall.

[0049] Step 3: Cluster the salience feature values of all curved curtain wall panels. According to the difference between the salience feature value of each curved curtain wall panel and the average level in the cluster, combined with the local density of the salience feature value of each curved curtain wall panel, the curved surface deviation degree of each curved curtain wall panel is obtained, and the abnormal curved surface evaluation value of each curved curtain wall panel is obtained combined with the salience feature value.

[0050] Further, the salience feature of the curved curtain wall panel in the curved curtain wall BIM model is analyzed by clustering. The salience feature values of all curved curtain wall panels in the curved curtain wall BIM model are taken as the input of the DPC density peak clustering algorithm. The DPC density peak clustering algorithm is used to analyze the salience feature values of all curved curtain wall panels. The cutoff distance in the algorithm is 10. The DPC density peak clustering algorithm is used to obtain each cluster and the local density of the salience feature value of each curved curtain wall panel. The DPC density peak clustering algorithm is a known technology, and the specific process is not described again.

[0051] By using the clustering analysis method, the difference in salience between each curved curtain wall panel and the overall curtain wall in the curved curtain wall BIM model can be analyzed. The smaller the local density of the salience feature value of each curved curtain wall panel, the greater the difference in salience between the curved curtain wall panel and the overall curtain wall. At the same time, the greater the difference between the salience feature value of each curved curtain wall panel and the average level of the salience feature value in the cluster, the greater the salience deviation of the curved curtain wall panel compared to the overall curtain wall, and the more it should be further processed, thereby enhancing the flatness of each curved curtain wall panel in the curved curtain wall BIM model and the aesthetic degree of the overall thermal insulation curtain wall.

[0052] Therefore, based on the above analysis, the curved surface deviation degree of each curved curtain wall panel in the curved curtain wall BIM model is calculated:

[0053] wherein, is the surface deviation degree of the s-th curved curtain wall panel, is the mean value of all the conspicuousness characteristic values in the cluster cluster in which the conspicuousness characteristic value of the s-th curved curtain wall panel is located, is the local density of the conspicuousness characteristic value of the s-th curved curtain wall panel, is a constant to avoid the denominator being 0, and is taken in a small data range (0.1, 0.5) so that the influence on the calculation result can be negligible, and in the embodiment, the value is 0.2.

[0054] The surface deviation degree reflects the deviation degree of the conspicuousness between each curved curtain wall panel and the overall curved curtain wall in the curved curtain wall BIM model, and the greater the surface deviation degree, the greater the deviation degree of the conspicuousness between the curved curtain wall panel and the overall curved curtain wall, the more likely to affect the stability and safety of the overall thermal insulation curtain wall, and the more need to deepen the curved curtain wall panel.

[0055] Through the local analysis and overall analysis of the curved curtain wall panels in the curved curtain wall BIM model, the conspicuousness characteristic value and the surface deviation degree of each curved curtain wall panel in the curved curtain wall BIM model are obtained, and if the conspicuousness characteristic value and the surface deviation degree of the curved curtain wall panel are both at a high level, the abnormal characteristics of the curved curtain wall panel can be more accurately explained.

[0056] Therefore, in the embodiment, the conspicuousness characteristics and the surface deviation characteristics of each curved curtain wall panel in the curved curtain wall BIM model are fully considered to evaluate the surface abnormality of each curved curtain wall panel and construct an abnormal surface evaluation value. Preferably, in the embodiment, the range normalization result of the product of the conspicuousness characteristic value and the surface deviation degree of each curved curtain wall panel is recorded as the abnormal surface evaluation value of each curved curtain wall panel in the curved curtain wall BIM model.

[0057] The greater the abnormal surface evaluation value, the more significant the abnormal characteristics on the corresponding curved curtain wall panel in the curved curtain wall BIM model, and the more the curved curtain wall panel should be deepened.

[0058] Step 4: Identify the abnormal curtain wall panel of the curved curtain wall BIM model based on the abnormal surface evaluation value, and adjust the abnormal curtain wall panel through the Revit software to realize the BIM design of the curtain wall structure.

[0059] In order to accurately deepen the abnormal curved surface curtain wall plate in the curved surface curtain wall BIM model, the abnormal curved surface evaluation value of all curved surface curtain wall plates in the curved surface curtain wall BIM model is taken as the input of the maximum inter-class variance algorithm, the segmentation threshold is obtained by using the maximum inter-class variance algorithm, the curved surface curtain wall plate corresponding to the abnormal curved surface evaluation value greater than the segmentation threshold is recorded as the abnormal curtain wall plate of the curved surface curtain wall BIM model, and the maximum inter-class variance algorithm is a known technology, and the specific process will not be described here.

[0060] Further, the abnormal curtain wall plate in the curved surface curtain wall BIM model is adjusted by the building designer, and the size, structure and installation mode of the abnormal curtain wall plate in the curved surface curtain wall BIM model are adjusted through the Revit software, the deepening processing of the abnormal curved surface in the curved surface curtain wall BIM model is completed, so that the potential influence of the plate warping is effectively eliminated, and the flatness and aesthetics of the thermal insulation curtain wall structure are ensured.

[0061] It can be understood that the reference "one embodiment" or "some embodiments" and the like described in the specification of the present application means that the specific features, structures or characteristics described in connection with the embodiment are included in one or more embodiments of the present application. Therefore, if "in one embodiment", "in some embodiments", "in other some embodiments", "in another some embodiments" and the like appear in the specification, it does not necessarily refer to the same embodiment, but means "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0062] It should be noted that the above sequence of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments. Moreover, the above describes the specific embodiments of the present specification. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multi-task processing and parallel processing are also possible or can be advantageous. At the same time, the size of the serial number of each step in the embodiment does not mean the execution order, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments in the specification.

[0063] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A BIM design method for a thermally insulated curtain wall construction, characterized in that, The method comprises the following steps: establishing a curved curtain wall BIM model and segmenting the curtain wall plates into curved curtain wall plates, and counting the warping rates of the curved curtain wall plates; obtaining the warping change complexity of each curved curtain wall plate through the change degree and complexity of the warping rate difference between each curved curtain wall plate and the adjacent curtain wall plates, and obtaining the conspicuousness characteristic value of each curved curtain wall plate in combination with the distribution change trend of the warping rate difference between different curved curtain wall plates; clustering the conspicuousness characteristic values of all the curved curtain wall plates, obtaining the curved surface deviation degree of each curved curtain wall plate according to the difference between the conspicuousness characteristic value of each curved curtain wall plate and the average level in the cluster, and obtaining the abnormal curved surface evaluation value of each curved curtain wall plate in combination with the local density of the conspicuousness characteristic value; identifying the abnormal curtain wall plates of the curved curtain wall BIM model based on the abnormal curved surface evaluation value, and adjusting the abnormal curtain wall plates through Revit software to realize the BIM design of the curtain wall structure; the method for obtaining the warping change complexity of each curved curtain wall plate is as follows: constructing the warping difference sequence of each curved curtain wall plate by using the warping rate difference between each curved curtain wall plate and each adjacent curtain wall plate, and taking the product of the permutation entropy of all elements in the first-order difference sequence of the warping difference sequence and the sum of all elements in the first-order difference sequence as the warping change complexity of each curved curtain wall plate; the method for calculating the conspicuousness characteristic value of each curved curtain wall plate is as follows: ; wherein, is the conspicuousness characteristic value of the s-th curved curtain wall panel, is the warping change complexity of the s-th curved curtain wall panel, is the fitting slope of the warping difference sequence of the s-th curved curtain wall panel, is the fitting slope of the warping difference sequence corresponding to the g-th adjacent curtain wall panel of the s-th curved curtain wall panel; the warping difference sequence of each curved curtain wall panel is linearly fitted, and the slope of the fitted straight line is taken as the fitting slope of the warping difference sequence of each curved curtain wall panel, and M represents the number of adjacent curtain wall panels of each curved curtain wall panel; the method for calculating the curved surface deviation degree of each curved curtain wall plate is as follows: ; wherein, is the curvature deviation degree of the s-th curved curtain wall panel, is the conspicuousness feature value of the s-th curved curtain wall panel, is the mean of all the conspicuousness feature values in the cluster cluster where the conspicuousness feature value of the s-th curved curtain wall panel is located, is the local density of the conspicuousness feature value of the s-th curved curtain wall panel, is a constant to avoid the denominator being 0.

2. The BIM design method of a thermally insulated curtain wall construction of claim 1, wherein, the multiple curved curtain wall plates closest to each curved curtain wall plate are taken as the adjacent curtain wall plates of each curved curtain wall plate.

3. The BIM design method of a thermally insulated curtain wall construction of claim 1, wherein, the absolute difference between the warping rates of each curved curtain wall plate and each adjacent curtain wall plate is calculated, and the warping difference sequence of each curved curtain wall plate is arranged in ascending order according to the numerical value.

4. The BIM design method of a thermally insulated curtain wall construction of claim 1, wherein, the DPC density peak clustering algorithm is adopted to cluster the conspicuousness characteristic values of all the curved curtain wall plates to obtain the local density of the conspicuousness characteristic value of each curved curtain wall plate.

5. The BIM design method of a thermally insulated curtain wall construction of claim 1, wherein, the abnormal curved surface evaluation value of each curved curtain wall plate is the normalized result of the product of the conspicuousness characteristic value and the curved surface deviation degree.

6. The BIM design method of a thermally insulated curtain wall construction of claim 1, wherein, the identification step of the abnormal curtain wall plates of the curved curtain wall BIM model is as follows: threshold segmentation is performed on the abnormal curved surface evaluation values of all the curved curtain wall plates in the curved curtain wall BIM model, and the curved curtain wall plates corresponding to the abnormal curved surface evaluation values greater than the segmentation threshold are taken as the abnormal curtain wall plates of the curved curtain wall BIM model.

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