CN114065349A - Revit-based external wall external thermal insulation and decoration metering method and system - Google Patents
Revit-based external wall external thermal insulation and decoration metering method and system Download PDFInfo
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Abstract
The invention relates to a method and a system for external wall external thermal insulation and decoration measurement based on Revit, comprising the following steps: s1: importing a main structure model file in a Revit platform; s2: global parameter setting is carried out aiming at the model file in the step S1; s3: automatically creating a three-dimensional outer wall decoration model on the main structure model; s4: calculating the engineering quantity of the three-dimensional outer wall decoration model in the step S3; s5: deriving a report according to the engineering quantity calculation in the step S4; the scheme has the advantages of high automation degree, correlation between model building and metering and standardized metering.
Description
Technical Field
The invention relates to the technical field of external wall external insulation and decoration metering, in particular to a method and a system for external wall external insulation and decoration metering based on Revit.
Background
The external thermal insulation of the external wall is an energy-saving environment-friendly green project, under the situation, the external thermal insulation technology and products of the external wall face good development opportunities, BIM is carried out on the external wall, rapid measurement is carried out through a BIM model, effective control is carried out through the throughput price, the external thermal insulation technology and the products of the external wall are in line with the BIM development trend of large industry environments, and the external thermal insulation technology and the products of the external wall are also the key for realizing sustainable development of external thermal insulation and decoration projects of the external wall.
The design and the measurement of the current exterior wall external-wrapping heat-insulation and decoration bulletin name have obvious intelligent division, information exchange has barriers, and related workers have huge workload in the process of drawing, modeling, measurement and other processes, the efficiency is low, and errors easily exist.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problem to be solved by the application of the patent is how to provide a method and a system for exterior wall external thermal insulation and decoration measurement based on Revit, which have high automation degree, are associated with model construction and measurement and are used for standardized measurement.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for external thermal insulation and decoration metering of an external wall based on Revit comprises the following steps:
s1: importing a main structure model file in a Revit platform;
s2: global parameter setting is carried out aiming at the model file in the step S1;
s3: automatically creating a three-dimensional outer wall decoration model on the main structure model;
s4: calculating the engineering quantity of the three-dimensional outer wall decoration model in the step S3;
s5: a report is derived from the calculation of the amount of work performed in step S4.
Preferably, in step S1, the imported main structure model includes model primitives of a system family and an external family; the system family comprises a wall family, a plate family and a railing family, and the exterior family comprises a door family, a window family, a column, a beam and a metric family; and the model primitive realizes information conversion and transmission through data office analysis, identification and processing.
Preferably, the step S3 of creating the three-dimensional exterior wall decoration model for the main structure model includes functions of type, material, heat preservation, lines and paint; and the information processing links of corresponding relation in the member, model coloring and floor division are included when the three-dimensional outer wall decoration model is completed.
Preferably, when the engineering quantity calculation is performed on the three-dimensional outer wall decoration model in the step S4, the method mainly includes the following steps:
a1: analyzing, identifying and processing the three-dimensional outer wall decoration model data;
a2: acquiring the quantity, length, height and area parameters of the primitives in the view interface, and finishing the combination of basic attributes;
a3: and finishing the calculation of the engineering quantity of the exterior wall decoration model through a built-in calculation rule.
Preferably, the calculation rules in step a3 include an opening deduction calculation, an overlap deduction calculation and an expression reduction.
A system for external thermal insulation and decoration metering of an external wall based on Revit is characterized by comprising an engineering setting module, a modeling design module, an engineering calculation module and a report module; the engineering setting module is used for setting calculation parameters and a link model, and the modeling design module is used for: for creating materials, creating insulation walls or panels, molding entities, and paint walls or panels, the engineering calculation module: the method comprises the steps of summarizing calculation and checking, and is used for calculating the engineering quantity according to the set calculation rule, the calculation mode and the deduction rule and ensuring the correctness of the calculation result through checking, wherein the report module: the method comprises project preview and report output, and is used for previewing the project calculation result and exporting the required report in the required format.
Preferably, the calculation parameter setting in the engineering setting module is used for setting calculation precision, calculation rule parameters, calculation rules and deduction rules; the linked model function is used to read a number of other model-related parameters linked to the current model.
Preferably, in the modeling design module: the material establishment is used for establishing or setting materials and colors required by the wall or the plate to be established, the modeling design of the external wall heat insulation and the paint is used for establishing the wall or the plate as the external wall heat insulation and the paint, and the modeling of the external wall line is used for establishing the regular or irregular entity as the building external wall modeling; the wall or board creation of the external wall insulation and coating further comprises automatic wall corner alignment processing, automatic board edge alignment processing, automatic wall or board creation with holes, and judgment and creation of divided areas of the wall or board.
Preferably, in the process of performing summary calculation in the engineering calculation module, the following formula is adopted for calculation:
wherein A isallThe total area of the wall surface or the plate surface;
the calculation rule includes a deduction area setting, and when the area of the overlapped surface is smaller than the set deduction area, the area does not account for the area occupied by the overlapped member.
Preferably, the project preview in the report module includes materials, the floor, the part, the calculation result and the calculation expression.
In conclusion, the method has the advantages that three-dimensional automatic creation can be realized, and the modeling workload of designers is saved; the calculation is automatically carried out according to the calculation rule, so that the calculation error is avoided, and the accuracy is improved; the output result is high in visualization degree, visual and efficient.
Drawings
Fig. 1 is a flow chart of the method for exterior wall external thermal insulation and decoration measurement based on Revit of the present invention.
Fig. 2 is a frame diagram of an external wall external thermal insulation and decoration metering system based on Revit.
Fig. 3 is a metering flow diagram.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "upper, lower" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The first embodiment is as follows:
as shown in fig. 1, a method for exterior wall external thermal insulation and decoration measurement based on Revit comprises the following steps:
s1: importing a main structure model file in a Revit platform;
s2: global parameter setting is carried out aiming at the model file in the step S1;
s3: automatically creating a three-dimensional outer wall decoration model on the main structure model;
s4: calculating the engineering quantity of the three-dimensional outer wall decoration model in the step S3;
s5: a report is derived from the calculation of the amount of work performed in step S4.
Further, in step S1, the imported main structure model includes model map elements of the system family and the building family; the system family comprises a wall family, a plate family and a railing family, and the exterior family comprises a door family, a window family, a column, a beam and a metric family; and the model primitive realizes information conversion and transmission through data office analysis, identification and processing.
Specifically, the global parameter setting in step S2 mainly includes calculation accuracy, calculation definition, and deduction and subtraction rules;
further, the step S3 of creating the three-dimensional exterior wall decoration model for the main structure model mainly includes the functions of type, material, heat preservation, lines and paint; and the information processing links of corresponding relation in the member, model coloring and floor division are included when the three-dimensional outer wall decoration model is completed.
Specifically, for types and materials, respectively establishing heat preservation, lines, section sizes of coatings, material names and coloring modes according to data such as building energy conservation, building vertical control and the like;
specifically, the parameters of the heat preservation include: section, veneering method, automatic alignment, veneering position, veneering edge covering, line alignment, hole flanging and single selection and multiple selection; when the thermal insulation veneering device is used, the common large-surface thermal insulation veneers and the common hole side surface thermal insulation veneers can be automatically generated by selecting and establishing the datum plane of the thermal insulation veneers and setting the datum plane according to the thermal insulation parameters, and the large-surface thermal insulation veneers can be automatically aligned with the hole side surface thermal insulation veneers and aligned at the external corners.
Specifically, the line parameters comprise parameters of a cross section, a veneering position and a component number; when the system is used, a Revit conventional model creation interface is automatically popped up by a 'line' button, then a line is created according to a required line profile, and meanwhile, the program automatically sets related parameters of the line.
Specifically, the coating parameters comprise a section, a veneering method, automatic alignment, a veneering position, veneering edge covering and single-selection and multiple-selection; in use, the substrate side that creates the paint overlay is selected, the large-area paint overlay is automatically created according to the parameter settings, and the alignment of the large-area paint overlay at the external corner can be automatically processed.
Further, when calculating the engineering quantity of the three-dimensional exterior wall decoration model in step S4, the method mainly includes the following steps:
a1: analyzing, identifying and processing the three-dimensional outer wall decoration model data;
a2: acquiring the quantity, length, height and area parameters of the primitives in the view interface, and finishing the combination of basic attributes;
a3: and finishing the calculation of the engineering quantity of the exterior wall decoration model through a built-in calculation rule.
Further, the calculation rules in step A3 include hole deduction calculation, overlap deduction calculation and expression reduction
Specifically, when the three-dimensional outer wall decoration model component has the hole, calculation needs to be carried out through a hole deduction calculation rule so as to obtain accurate engineering quantity; the area is calculated by subtracting the sum of the areas of the holes from the area of the peripheral rectangle.
Specifically, different model components are overlapped with each other, and the engineering quantity needs to be accurately calculated through the overlap deduction calculation rule.
Specifically, the expression is reduced to be specific to analysis and processing of three-dimensional outer wall decoration model component data, and accurate reduction calculation formula is carried out, so that a verification engineering quantity basis is provided.
Example two
As shown in fig. 2-3: a system for external thermal insulation and decoration metering of an external wall based on Revit is characterized by comprising an engineering setting module, a modeling design module, an engineering calculation module and a report module; the engineering setting module is used for setting calculation parameters and a link model, and the modeling design module is used for: for creating materials, creating insulation walls or panels, molding entities, and paint walls or panels, the engineering calculation module: the method comprises the steps of summarizing calculation and checking, and is used for calculating the engineering quantity according to the set calculation rule, the calculation mode and the deduction rule and ensuring the correctness of the calculation result through checking, wherein the report module: the method comprises project preview and report output, and is used for previewing the project calculation result and exporting the required report in the required format.
Further, the calculation parameter setting in the engineering setting module is used for setting calculation precision, calculation rule parameters, calculation rules and deduction rules; the linked model function is used to set a number of other model-related parameters linked to the current model.
Further, in the modeling design module: the material establishment is used for establishing or setting materials and colors required by the wall or the plate to be established, the modeling design of the external wall heat insulation and the paint is used for establishing the wall or the plate as the external wall heat insulation and the paint, and the modeling of the external wall lines is used for establishing the regular or irregular solid as the building external wall modeling; the wall or board creation of the external wall insulation and coating further comprises automatic wall corner alignment processing, automatic board edge alignment processing, automatic wall or board creation with holes, and judgment and creation of divided areas of the wall or board.
Specifically, the method comprises the following steps: when the wall corners are automatically aligned, firstly, whether a wall body exists at the wall end is judged, secondly, whether the wall end with the wall body is convex or concave is judged, if the wall end is convex, the extending and overlapping type of the two walls at the wall end is judged by adopting the distance of the central lines of the two walls, so that whether the wall end of the wall to be generated needs to extend the wall thickness of the corresponding wall end wall is determined, and then, whether the outer wall outer heat preservation and decoration walls exist on the outer surfaces of the wall end walls is judged, so that whether the wall end of the wall to be generated needs to extend the wall thickness of the outer wall outer heat preservation and decoration walls is determined; the inward-concave wall end also adopts the distance between the central lines of the two walls to judge the extension overlapping type of the two walls at the wall end so as to determine whether the wall end of the wall to be generated needs to shrink the wall thickness of the corresponding wall end wall; then, whether the outer wall external thermal insulation and the decorative wall exist on the inner surface of the wall end wall is judged, so that whether the wall end of the wall to be generated needs to shrink the wall thickness of the outer wall external thermal insulation and the decorative wall is determined.
Specifically, during the automatic wall corner alignment treatment, the geometric entity of the wall body is expanded by 1mm in other directions except for two height directions to obtain a geometric body source for collision detection, collision detection is carried out on the geometric entity of the source to obtain all components intersected with the geometric entity of the source, and then the wall body is obtained through type screening; and finally, judging whether a wall body exists at the wall end or not in all the obtained wall bodies according to the distance between the two end points of the center line of the wall body and a calculation formula of the distance between the end points
Wherein h is1And h2Indicating the wall thickness.
Specifically, the method comprises the following steps: when the plate edge automatic alignment processing is carried out, the plate edge automatic alignment processing is carried out in a line mode, each line is calculated, two surfaces where the line is located are found, whether an external wall external thermal insulation and decoration wall or plate exists on the section is judged, whether the thickness of the external wall external thermal insulation and decoration wall or plate needs to be translated is determined according to the line, then corresponding points of two lines which are in common with the two end points are found through the two end points of the line, the thickness of the external wall external thermal insulation and decoration wall or plate is also translated, all the lines are cycled, and the plate edge alignment special processing is completed.
Specifically, the method comprises the following steps: when judging and creating the divided areas of the wall or the plate; judging whether the mouse point is in a certain polygonal area by adopting a ray method, and generating an external thermal insulation and decoration wall or board in the area; the ray method takes a mouse point as a starting point, makes a ray to pass through a polygonal area, calculates the number of intersection points of the ray and the polygonal area, if the number of the intersection points is an odd number, the point is in the polygon, otherwise, the point is outside the polygon.
Further, the method comprises the following steps of; the model summarizing calculation is used for selecting and setting floors to be calculated and members to be calculated, and model summarizing calculation is carried out according to setting information; the calculation check is used for checking the accuracy of the engineering quantity and displaying a calculation process according to a deduction rule and a calculation expression through a visual window; the deduction check is used to check the model accuracy.
Specifically, during summary calculation, model analysis is carried out according to the created external thermal insulation and decoration model of the external wall, and all members needing to be calculated are obtained by analyzing and filtering in combination with the set floors and members needing to be calculated; and then calculating each component according to the calculation rule, the calculation mode and the deduction rule.
Further, in the summary calculation process in the engineering calculation module, the following formula is adopted for calculation:
wherein A isallThe total area of the wall surface or the plate surface;
the calculation rule includes a deduction area setting, and when the area of the overlapped surface is smaller than the set deduction area, the area does not account for the area occupied by the overlapped member.
Specifically, when calculation checking is carried out, the position of the component in the model is quickly positioned according to the ID number of the component, the component is highlighted, meanwhile, a calculation result viewing dialog box of the component is displayed, the dialog box comprises a three-dimensional diagram of the component and other components related to the component, and a calculation detail process is displayed.
Further, the project preview in the report module comprises materials, the floor where the project is located, positions, calculation results and calculation expressions.
The method is used for setting engineering parameters and link model parameters through an engineering setting module, building an external wall external thermal insulation and decoration engineering model through the set engineering parameters, and then calculating the engineering quantity based on the built model; the accuracy of the engineering quantity calculation is ensured through visual checking; and finally, previewing and exporting the metering result through a report module according to a setting rule, an industry standard or convention.
Finally, it should be noted that: various modifications and alterations of this invention may be made by those skilled in the art without departing from the spirit and scope of this invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A method for external thermal insulation and decoration metering of an external wall based on Revit is characterized by comprising the following steps:
s1: importing a main structure model file in a Revit platform;
s2: global parameter setting is carried out aiming at the model file in the step S1;
s3: automatically creating a three-dimensional outer wall decoration model on the main structure model;
s4: calculating the engineering quantity of the three-dimensional outer wall decoration model in the step S3;
s5: a report is derived from the calculation of the amount of work performed in step S4.
2. The method for exterior wall external insulation and decoration metering based on Revit of claim 1, wherein in step S1, the imported major structure model comprises model primitives of a system family and an external family; the system family comprises a wall family, a plate family and a railing family, and the exterior family comprises a door family, a window family, a column, a beam and a metric family; and the model primitive realizes information conversion and transmission through data office analysis, identification and processing.
3. The method for exterior wall external insulation and decoration metering based on Revit of claim 2, wherein the step S3 of creating a three-dimensional exterior wall decoration model for the main structure model includes the functions of type and material, insulation, lines and paint; and the information processing links of corresponding relation in the member, model coloring and floor division are included when the three-dimensional outer wall decoration model is completed.
4. The method for exterior wall external insulation and decoration measurement based on Revit of claim 3, wherein when calculating the engineering quantity of the three-dimensional exterior wall decoration model in the step S4, the method mainly comprises the following steps:
a1: analyzing, identifying and processing the three-dimensional outer wall decoration model data;
a2: acquiring the quantity, length, height and area parameters of the primitives in the view interface, and finishing the combination of basic attributes;
a3: and finishing the calculation of the engineering quantity of the exterior wall decoration model through a built-in calculation rule.
5. The method for exterior wall external insulation and decoration metering based on Revit as claimed in claim 4, wherein the calculation rules in the step A3 include hole deduction calculation, overlap deduction calculation and expression reduction.
6. A system for external thermal insulation and decoration metering of an external wall based on Revit is characterized by comprising an engineering setting module, a modeling design module, an engineering calculation module and a report module; the engineering setting module is used for setting calculation parameters and a link model, and the modeling design module is used for: for creating materials, creating insulation walls or panels, molding entities, and paint walls or panels, the engineering calculation module: the method comprises the steps of summarizing calculation and checking, and is used for calculating the engineering quantity according to the set calculation rule, the calculation mode and the deduction rule and ensuring the correctness of the calculation result through checking, wherein the report module: the method comprises project preview and report output, and is used for previewing the project calculation result and exporting the required report in the required format.
7. The system for exterior wall external insulation and decoration metering based on Revit according to claim 6, wherein the calculation parameter settings in the engineering setting module are used for setting calculation precision, calculation rule parameters, calculation rules and deduction rules; the linked model function is used to read a number of other model-related parameters linked to the current model.
8. The system for exterior wall external insulation and decoration metering based on Revit according to claim 7, wherein in the modeling design module: the material establishment is used for establishing or setting materials and colors required by the wall or the plate to be established, the modeling design of the external wall heat insulation and the paint is used for establishing the wall or the plate as the external wall heat insulation and the paint, and the modeling of the external wall line is used for establishing the regular or irregular entity as the building external wall modeling; the wall or board creation of the external wall insulation and coating further comprises automatic wall corner alignment processing, automatic board edge alignment processing, automatic wall or board creation with holes, and judgment and creation of divided areas of the wall or board.
9. The system for exterior wall external insulation and decoration metering based on Revit according to claim 8, wherein the engineering calculation module calculates by using the following formula in the process of summarizing calculation:
wherein A isallThe total area of the wall surface or the plate surface;
the calculation rule includes a deduction area setting, and when the area of the overlapped surface is smaller than the set deduction area, the area does not account for the area occupied by the overlapped member.
10. The system for exterior wall external insulation and decoration metering based on Revit according to claim 9, wherein the project preview in the report module comprises materials, floors, parts, calculation results and calculation expressions.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114818068A (en) * | 2022-04-27 | 2022-07-29 | 中铁四局集团建筑工程有限公司 | Parameter selection method for anchor bolt of connecting piece of outer wall non-dismantling composite heat-insulation template |
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| CN110046364A (en) * | 2018-01-16 | 2019-07-23 | 中国建筑第八工程局有限公司 | A kind of method for computing work amount based on BIM technology |
| CN110414181A (en) * | 2019-08-08 | 2019-11-05 | 苏州宜特加建筑工程有限公司 | A kind of design method of the heat insulating decorative board exterior wall based on BIM |
| CN111950064A (en) * | 2020-08-18 | 2020-11-17 | 山东泰和建设管理有限公司 | BIM-based heat insulation structure metering method and device, computer equipment and storage medium |
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- 2021-11-17 CN CN202111362031.8A patent/CN114065349A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110046364A (en) * | 2018-01-16 | 2019-07-23 | 中国建筑第八工程局有限公司 | A kind of method for computing work amount based on BIM technology |
| CN110414181A (en) * | 2019-08-08 | 2019-11-05 | 苏州宜特加建筑工程有限公司 | A kind of design method of the heat insulating decorative board exterior wall based on BIM |
| CN111950064A (en) * | 2020-08-18 | 2020-11-17 | 山东泰和建设管理有限公司 | BIM-based heat insulation structure metering method and device, computer equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114818068A (en) * | 2022-04-27 | 2022-07-29 | 中铁四局集团建筑工程有限公司 | Parameter selection method for anchor bolt of connecting piece of outer wall non-dismantling composite heat-insulation template |
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