CN115081695A - BIM model-based engineering budget method, system and terminal equipment - Google Patents
BIM model-based engineering budget method, system and terminal equipment Download PDFInfo
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Abstract
The application relates to the field of engineering cost, in particular to a BIM model-based engineering budget method, a system and terminal equipment, wherein the method comprises the following steps: acquiring historical construction drawing data, and calculating to obtain a historical budget result based on a BIM (building information modeling) model and the construction drawing data; acquiring historical completion drawing data corresponding to the historical construction drawing data, and calculating by using preset budget software to obtain a historical completion result; obtaining result difference data according to the historical budget result and the historical completion result; adjusting the BIM according to the result difference data to obtain a BIM optimization model; when target construction drawing data of uncompleted projects are obtained, a target budget result is obtained through estimation based on a BIM optimization model and the target construction drawing data.
Description
Technical Field
The application relates to the field of engineering cost, in particular to a BIM model-based engineering budget method, system and terminal equipment.
Background
The building information model is a new tool for architecture, engineering and civil engineering, and is used for describing computer aided design mainly based on three-dimensional graphics, object guide and architecture.
In the related art, in order to estimate the cost control and the engineering profit during engineering construction, a BIM budget model is usually used to calculate the engineering construction cost and the profit, and the profit is calculated according to the engineering quantities of the rear member and the member corresponding to each BIM model.
In view of the above-mentioned related technologies, the inventor believes that, when a BIM model is modeled, the model itself may overlap or a modeling error may cause an error between a construction quantity and an actual construction quantity, resulting in a difference between the BIM model and a completion result after completion.
Disclosure of Invention
In order to improve the accuracy of the budget result calculated according to the BIM model, the application provides a project budget method, a project budget system and a terminal device based on the BIM model.
The engineering budget method, system and terminal device based on the BIM model provided by the application adopt the following technical scheme:
a project budget method based on a BIM model comprises the steps of obtaining historical construction drawing data, and calculating to obtain a historical budget result based on the BIM model and the construction drawing data;
acquiring historical completion drawing data corresponding to the historical construction drawing data, and calculating by using preset budget software to obtain a historical completion result;
obtaining result difference data according to the historical budget result and the historical completion result;
adjusting the BIM according to the result difference data to obtain a BIM optimization model;
and when target construction drawing data of uncompleted projects are obtained, estimating to obtain a target budget result based on the BIM optimization model and the target construction drawing data.
By adopting the technical scheme, the BIM model established according to the historical construction drawing data obtains the historical budget result, then the historical completion result is obtained according to the historical completion drawing, the historical completion result is compared with the historical budget result to obtain the difference data of which the historical budget result is equivalent to the historical completion result, the BIM model is optimized according to the difference data, so that the budget result obtained according to the construction drawing can be more accurate, after the model is optimized, the more accurate project budget result can be estimated according to the construction drawing data, the project budget result is more accurate, and the project can be more smoothly developed.
Optionally, the obtaining of the historical construction drawing data and the calculating of the historical budget result based on the BIM model and the construction drawing data include:
acquiring a construction type and a project amount corresponding to the construction type based on the historical construction drawing data;
and obtaining a historical budget result based on the construction type and the engineering quantity corresponding to the construction type.
By adopting the technical scheme, according to historical construction drawing data, the construction type and the engineering quantity represented by the construction type in the historical construction drawing can be obtained, the construction type is specific construction content, such as earth excavation, rebar paving and the like, each construction type has specific engineering unit price, and a historical budget result can be calculated according to the engineering unit price and the engineering quantity.
Optionally, the obtaining result difference data according to the historical budget result and the historical completion result includes:
acquiring historical engineering quantity based on the historical budget result;
acquiring historical completion engineering quantities based on the historical completion results;
judging whether the historical engineering quantity is the same as the historical completion engineering quantity;
if the historical engineering quantity is different from the historical completion engineering quantity, obtaining result difference data as engineering quantity change;
and if the historical engineering quantity is the same as the historical completion engineering quantity, obtaining result difference data as engineering material change.
By adopting the technical scheme, the data of the historical budget result and the historical completion result are different, whether the engineering quantities are different is judged, if not, the result difference data is caused by the use change of materials in the construction process, if the engineering quantities are different, the result difference data is the change of engineering materials, the change of the engineering quantities causes the difference of the budget result, the change of the engineering materials causes the budget unit price change of the engineering materials and also causes the budget result change, the reason for causing the difference of the result data is analyzed, and the more accurate budget result is conveniently calculated.
Optionally, the determining whether the historical engineering quantity and the historical as-built quantity are the same includes:
acquiring a drawing edition of the historical construction drawing;
judging whether the version number of the historical construction drawing is 1;
if the historical construction drawing version is 1, the historical engineering quantity is the same as the historical completion engineering quantity;
and if the version number of the historical construction drawing is not 1, the historical engineering quantity is different from the historical completion engineering quantity.
By adopting the technical scheme, in the construction process, according to the actual construction requirement, the construction drawing can be improved, and a new drawing can be issued by the change of the drawing every time, so that the drawing is shown to be modified when the edition number of the construction drawing is not 1, the engineering quantity is changed, the drawing is shown to be unmodified when the edition number of the drawing is 1, and the engineering quantity is not changed.
Optionally, the adjusting the BIM model according to the result difference data includes:
obtaining a project amount change value based on the historical completion project amount and the historical project amount, and taking the project amount change value as result difference data;
and matching the engineering quantity change value to a corresponding BIM model component, and adjusting the BIM model.
By adopting the technical scheme, when the BIM is adjusted, the reason for generating result difference data is analyzed and then adjusted according to the specific reason, when the reason is the change of the engineering quantity caused by the change of a drawing, the engineering quantity change value is obtained according to the historical completion quantity and the historical engineering quantity, the engineering quantity change value is adjusted on the BIM to obtain the optimized BIM, and the calculated budget result according to the optimized BIM is more accurate.
Optionally, the determining whether the historical engineering quantity and the historical as-built quantity are the same includes:
acquiring a component category based on the historical completion quantities;
acquiring a component name based on the component category;
judging whether the component has a model error or not based on the component name;
if the component has model errors, the historical engineering quantity is different from the historical completion engineering quantity;
and if the component has no model error, the historical engineering quantity is the same as the historical completion engineering quantity.
By adopting the technical scheme, when the project amount is estimated by utilizing the BIM, the project amount of partial components can deviate due to model errors, component types are obtained according to historical completion project amount, component names are obtained according to the component types, whether the component has model errors or not is judged according to the component names, if model errors exist, the historical project amount is different from the historical completion project amount, and if model errors do not exist, the historical project amount is the same as the historical completion project amount.
Optionally, the adjusting the BIM model according to the result difference data further includes:
acquiring a component error value corresponding to the component name based on the component name;
obtaining actual engineering quantity based on the component error value and the engineering quantity corresponding to the component name, and taking the actual engineering quantity as result difference data;
adjusting the BIM model based on the result difference data.
By adopting the technical scheme, the error value of the component corresponding to the component is inquired according to the name of the component, the error value of the component is possibly caused by the overlapping of the model and possibly caused by the error generated by the calculation rule, the actual engineering quantity of the component is obtained according to the error value and the calculated engineering quantity, and the engineering quantity of the component in the BIM model is adjusted according to the actual engineering quantity, so that the calculation result is more accurate.
In a second aspect, the present application provides a project budget system based on a BIM model, which adopts the following technical solution:
the first calculation module is used for acquiring historical construction drawing data and calculating to obtain a historical budget result based on a BIM (building information modeling) model and the construction drawing data;
the second calculation module is used for acquiring historical completion drawing data corresponding to the historical construction drawing data and calculating a historical completion result through preset budget software;
the acquisition module is used for acquiring result difference data according to the historical budget result and the historical completion result;
the optimization module is used for adjusting the BIM according to the result difference data to obtain a BIM optimization model;
and the estimation module is used for estimating and obtaining a target budget result based on the BIM optimization model and the target construction drawing data when the target construction drawing data of the unfinished project is obtained.
By adopting the technical scheme, after the first computing module obtains the historical construction drawing, the historical budget result is obtained according to the construction drawing data and the built BIM, the second computing module computes the historical completion result according to the historical completion drawing data and the budget software, the obtaining module obtains result difference data according to the historical completion result and the historical budget result, the optimizing module optimizes the BIM according to the result difference data, after the model is optimized, a more accurate budget result can be estimated according to the construction drawing data, and the project can be smoothly developed.
In a third aspect, the present application provides a terminal device, which adopts the following technical solution:
a terminal device comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the processor loads and executes the computer program, the BIM model-based engineering budgeting method is adopted.
By adopting the technical scheme, the computer program is generated by the BIM model-based engineering budgeting method and stored in the memory so as to be loaded and executed by the processor, so that the terminal equipment is manufactured according to the memory and the processor, and the use is convenient.
In summary, the present application includes at least one of the following beneficial technical effects:
the method comprises the steps of obtaining a historical budget result according to a BIM model established according to historical construction drawing data, obtaining a historical completion result according to a historical completion drawing, comparing the historical completion result with the historical budget result to obtain difference data with the historical budget result equivalent to the historical completion result, optimizing the BIM model according to the difference data, enabling the budget result obtained according to the construction drawing to be more accurate, estimating and obtaining a more accurate project budget result according to the construction drawing data after model optimization is completed, enabling the project to be more smoothly developed, and achieving the more accurate project budget result.
Drawings
FIG. 1 is a flowchart of a method for engineering budgeting based on a BIM model according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for obtaining historical construction drawing data and calculating a historical budget result based on a BIM model and the construction drawing data according to the embodiment of the present application;
FIG. 3 is a flowchart of a method for obtaining result difference data according to historical budget results and historical completion results according to an embodiment of the present application;
FIG. 4 is a flowchart of a method for determining whether historical engineering quantities and historical as-built quantities are the same according to an embodiment of the application;
FIG. 5 is a flowchart of a method for adjusting a BIM model according to result difference data according to an embodiment of the present application;
FIG. 6 is a flowchart of a method for determining whether historical engineering quantities and historical as-built quantities are the same according to an embodiment of the present application;
FIG. 7 is a flowchart of a method for adjusting a BIM model according to result difference data according to an embodiment of the present application;
fig. 8 is a system block diagram of an engineering budget system based on a BIM model according to an embodiment of the present application.
Description of reference numerals:
1. a first calculation module; 2. a second calculation module; 3. an acquisition module; 4. an optimization module; 5. and an estimation module.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
The embodiment of the application discloses a project budget method based on a BIM model, which comprises the following steps:
s100, obtaining historical construction drawing data, and calculating to obtain a historical budget result based on the BIM and the construction drawing data.
Specifically, the historical construction drawing data is electronic data of a construction drawing which is already constructed, the construction drawing data comprises component composition, engineering quantity of the components, connection relation and installation position of the components and the like, the BIM model is a budget model established according to the construction drawing, and the BIM model is a 3D model and comprises the position relation of the components, the engineering quantity of the components and the like.
And S110, acquiring historical completion drawing data corresponding to the historical construction drawing data, and calculating by using preset budget software to obtain a historical completion result.
Specifically, the historical completion drawing data corresponding to the historical construction drawing data is a drawing of a specific construction position in the same project, each construction drawing corresponds to a completion drawing, the completion drawing is a construction drawing modified according to actual construction, the preset budget software is mature budget software at present, a more accurate budget result can be obtained, and the historical completion result is a final project price obtained by calculating the completion drawing by using the budget software.
And S120, obtaining result difference data according to the historical budget result and the historical completion result.
Specifically, the difference data is the amount difference between the historical budget result and the historical completion result.
And S130, adjusting the BIM according to the result difference data to obtain a BIM optimization model.
Specifically, the result of the budget model calculated by the BIM established by the BIM optimization model has larger deviation, and the model is optimized according to the result difference data, so that the calculated budget result is more accurate.
And S140, when target construction drawing data of uncompleted projects are obtained, estimating to obtain a target budget result based on the BIM optimization model and the target construction drawing data.
Specifically, after the model is optimized, when calculation is performed according to a target construction drawing, the obtained budget result is more accurate, the target construction drawing data is a construction drawing in which a construction project is not finished or started, and the target budget result is a completion result calculated according to the construction drawing.
The implementation principle of the engineering budget method based on the BIM model in the embodiment of the application is as follows: the method comprises the steps of obtaining a historical budget result according to a BIM model established according to historical construction drawing data, obtaining a historical completion result according to a historical completion drawing, comparing the historical completion result with the historical budget result to obtain difference data with the historical budget result equivalent to the historical completion result, optimizing the BIM model according to the difference data, enabling the budget result obtained according to the construction drawing to be more accurate, estimating and obtaining a more accurate project budget result according to the construction drawing data after model optimization is completed, enabling the project to be more smoothly developed, and achieving the more accurate project budget result.
Referring to fig. 2, acquiring historical construction drawing data, and calculating to obtain a historical budget result based on the BIM model and the construction drawing data includes:
s200, acquiring the construction type and the engineering quantity corresponding to the construction type based on the historical construction drawing data.
Specifically, the construction type is specific construction content, such as PVC pipe construction and steel bar laying, and the engineering quantity corresponding to the construction type is the workload of the construction type construction, such as PVC pipe pre-buried by 200 m.
And S210, obtaining a historical budget result based on the construction type and the engineering quantity corresponding to the construction type.
Specifically, each construction type corresponds to a construction unit price, budgets of the type can be calculated according to the construction unit price and the engineering quantity, budgets of all types are added, and a budget result of the drawing can be obtained, for example, if each embedded 1m of the PVC pipe is 1 piece of money, the embedded 200m is 200 pieces, and if only one embedded PVC pipe is provided, a historical budget result is 200 yuan.
The implementation principle of obtaining the historical construction drawing data by calculation based on the BIM model and the construction drawing data is as follows: according to historical construction drawing data, construction types and construction quantities represented by the construction types in the historical construction drawing can be obtained, the construction types are specific construction contents such as earth excavation, rebar laying and the like, each construction type has a specific engineering unit price, and a historical budget result can be calculated according to the engineering unit prices and the construction quantities.
Referring to fig. 3, obtaining result difference data according to the historical budget result and the historical completion result includes:
and S300, acquiring historical project amount based on the historical budget result.
Specifically, the historical budget result is a historical budget calculated according to a historical construction drawing, and includes a category of each component and a project amount of the category, and the historical project amount includes project amounts corresponding to all components.
And S310, acquiring historical completion quantities based on the historical completion results.
Specifically, the historical completion result is a historical completion budget calculated according to a historical completion drawing, and comprises the category of each component and the engineering quantity of the category, and the historical engineering quantity comprises the engineering quantity corresponding to all the components.
And S320, judging whether the historical engineering quantity is the same as the historical completion engineering quantity.
Specifically, whether the historical engineering quantities are the same as the historical completion engineering quantities is to compare whether the engineering quantities corresponding to all the components are the same.
And S330, if the historical engineering quantity is different from the historical completion engineering quantity, obtaining result difference data as engineering quantity change.
Specifically, when there is a difference between the construction amount of a component in the history construction amount and the construction amount of a component in the history completion construction amount, the difference data greatly changes the construction amount.
And S340, if the historical engineering quantity is the same as the historical completion engineering quantity, obtaining result difference data as engineering material change.
Specifically, when the historical engineering quantity is the same as the historical completion engineering quantity, the engineering quantity is not changed, but the budgeting results are different, so that the used materials in the construction process are changed, the engineering unit prices of the engineering materials are different due to the change of the engineering materials, and the historical budgeting results are different from the historical completion results.
According to the embodiment of the application, the implementation principle of obtaining the result difference data according to the historical budget result and the historical completion result is as follows: and if the project quantities are different, the result difference data is the change of engineering materials, the difference of the budget results is caused by the change of the project quantities, the change of the engineering materials causes the change of the budget unit price of the engineering materials, the change of the budget results also causes the change of the budget results, the reason for causing the difference of the result data is analyzed, and the more accurate budget result is conveniently calculated.
Referring to fig. 4, determining whether the historical engineering quantities and the historical as-built quantities are the same includes:
and S400, obtaining the drawing edition of the historical construction drawing.
Specifically, the drawing version of the historical construction drawing is that in the construction engineering, the drawing may change along with the actual construction requirement, and a new construction drawing is issued due to the change of the drawing each time, for example, a certain drawing of a certain engineering issues three times, so that the drawing version is 3.
And S410, judging whether the version number of the historical construction drawing is 1.
Specifically, when the version number of the historical construction drawing is not 1, the drawing is changed in the construction process, and the change of the drawing indicates that the engineering quantity is changed.
And S420, if the historical construction drawing version is 1, the historical engineering quantity is the same as the historical completion engineering quantity.
Specifically, when the version number of the historical construction drawing is 1, the drawing is not changed, and the engineering quantity is naturally not changed.
And S430, if the version number of the historical construction drawing is not 1, the historical engineering quantity is different from the historical completion engineering quantity.
The implementation principle of judging whether the historical engineering quantity is the same as the historical completion engineering quantity is as follows: in the construction process, according to the actual construction demand, the construction drawing can be improved, and a new drawing can be issued each time when the drawing is changed, so that the drawing is shown to be modified when the edition number of the construction drawing is not 1, the engineering quantity is changed, the drawing is not modified when the edition number of the drawing is 1, and the engineering quantity is not changed.
Referring to fig. 5, adjusting the BIM model according to the result difference data includes:
and S500, obtaining a project quantity change value based on the historical completion project quantity and the historical project quantity, wherein the project quantity change value is used as result difference data.
Specifically, when the drawing is changed, the construction amount of each component in the acquired historical completion construction amount and the construction amount of each component in the historical construction amount are divided by the historical completion construction amount and the historical construction amount of the same component to obtain a changed proportionality coefficient, and the changed proportionality coefficient is used as the construction amount change value of the component.
And S500, matching the engineering quantity change value to the corresponding BIM model component, and adjusting the BIM model.
Specifically, the actual engineering quantity is obtained by multiplying the engineering quantity value obtained through the drawing by the engineering quantity change value.
The implementation principle of adjusting the BIM according to the result difference data in the embodiment of the application is as follows: when the BIM is adjusted, the reason for generating result difference data is analyzed, the BIM is adjusted according to specific reasons, when the reason is the change of engineering quantity caused by the change of a drawing, the change value of the engineering quantity is obtained according to the historical completion quantity and the historical engineering quantity, the change value of the engineering quantity is adjusted on the BIM to obtain an optimized BIM, and the calculated budget result according to the optimized BIM is more accurate.
Referring to fig. 6, determining whether the historical engineering quantities and the historical as-built quantities are the same includes:
and S600, acquiring component categories based on historical completion quantities.
Specifically, the member category is a construction category in a construction process, such as civil underground construction, civil aboveground construction, pipeline installation and the like.
S610, acquiring the component name based on the component category.
Specifically, a plurality of component names form a component category, for example, civil engineering underground construction comprises concrete walls, concrete columns, foundations and the like.
And S620, judging whether the component has model errors or not based on the component name.
Specifically, when a part of components are built in a BIM model, due to errors caused by overlapping of the models or modeling of the models, the actual engineering quantity of the components is different from the measured engineering quantity, for example, the engineering quantity of a concrete wall obtained through BIM modeling is 3094 cubes, the engineering quantity measured through prefabricated budget software is 2815, the difference is 9.91%, the difference is converted into unit engineering quantity of 9.91%/3094 per cube, the components which generate model errors are stored in a model database through the previously calculated data, when the names of the searched components exist in the model database, the model errors are represented, and the error quantity of the components can be inquired.
And S630, if the component has model errors, the historical engineering quantity is different from the historical completion engineering quantity.
And S640, if the component has no model error, the historical engineering quantity is the same as the historical completion engineering quantity.
The implementation principle of judging whether the historical engineering quantity is the same as the historical completion engineering quantity is as follows: when the BIM is used for project quantity budget, partial components can cause deviation of project quantity due to model errors, component types are obtained according to historical completion project quantity, component names are obtained according to the component types, whether the components have model errors or not is judged according to the component names, if model errors exist, the historical project quantity is different from the historical completion project quantity, and if model errors do not exist, the historical project quantity is the same as the historical completion project quantity.
Referring to fig. 7, adjusting the BIM model according to the result difference data further includes:
s700, acquiring a component error value corresponding to the component name based on the component name.
Specifically, the model database stores error values of different components, and the component error value corresponding to the component can be matched in the model database according to the component name, wherein when the error value is a positive value, the error value indicates that the engineering quantity of the BIM model is more than the actual engineering quantity, and when the error value is a negative value, the error value indicates that the engineering quantity of the BIM model is less than the actual engineering quantity.
And S710, obtaining an actual engineering quantity based on the engineering quantity corresponding to the component error value and the component name, and taking the actual engineering quantity as result difference data.
Specifically, the actual engineering quantity = engineering quantity + error value, for example, the engineering quantity of the concrete column measured by the BIM model is 3094 cubic, the error value is 9.91%/3094 per cubic, and then the actual engineering quantity is 3094+ 3094-9.91%/3094 =2788, and the result is an integer.
And S720, adjusting the BIM based on the result difference data.
The implementation principle of adjusting the BIM according to the result difference data in the embodiment of the application is as follows: according to the name of the component, a component error value corresponding to the component is inquired, the component error value is possibly caused by the overlapping of the model and possibly caused by errors generated by a calculation rule, the actual engineering quantity of the component is obtained according to the error value and the calculated engineering quantity, and the engineering quantity of the component in the BIM model is adjusted according to the actual engineering quantity, so that the calculation result is more accurate.
The construction budget method based on the BIM model is described in detail above, and a construction budget system based on the BIM model based on the construction budget method based on the BIM model is described in detail below.
A BIM model-based engineering budget system comprising:
the first calculation module 1 is used for acquiring historical construction drawing data and calculating to obtain a historical budget result based on the BIM and the construction drawing data;
the second calculation module 2 is used for acquiring historical completion drawing data corresponding to the historical construction drawing data and calculating a historical completion result through preset budget software;
the acquisition module 3 is used for acquiring result difference data according to the historical budget result and the historical completion result;
the optimization module 4 is used for adjusting the BIM according to the result difference data to obtain a BIM optimization model;
and the estimation module 5 is used for estimating and obtaining a target budget result based on the BIM optimization model and the target construction drawing data when the target construction drawing data of the unfinished project is obtained.
The implementation principle of the engineering budget system based on the BIM model in the embodiment of the application is as follows: after the first computing module 1 obtains a historical budget result according to construction drawing data and an established BIM model after acquiring historical construction drawings, the second computing module 2 computes a historical completion result according to the historical completion drawing data and budget software, the obtaining module 3 obtains result difference data according to the historical completion result and the historical budget result, the optimizing module 4 optimizes the BIM model according to the result difference data, and after the model is optimized, a more accurate budget result can be estimated by the estimating module 5 according to the construction drawing data, so that the project can be smoothly developed.
The embodiment of the application further discloses a terminal device, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein when the processor executes the computer program, the BIM model-based engineering budgeting method in the embodiment is adopted.
The terminal device may adopt a computer device such as a desktop computer, a notebook computer, or a cloud server, and the terminal device includes but is not limited to a processor and a memory, for example, the terminal device may further include an input/output device, a network access device, a bus, and the like.
The processor may be a Central Processing Unit (CPU), and of course, according to an actual use situation, other general processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like may also be used, and the general processor may be a microprocessor or any conventional processor, and the present application does not limit the present invention.
The memory may be an internal storage unit of the terminal device, for example, a hard disk or a memory of the terminal device, or an external storage device of the terminal device, for example, a plug-in hard disk, a smart card memory (SMC), a secure digital card (SD) or a flash memory card (FC) equipped on the terminal device, and the memory may also be a combination of the internal storage unit of the terminal device and the external storage device, and the memory is used for storing a computer program and other programs and data required by the terminal device, and the memory may also be used for temporarily storing data that has been output or will be output, which is not limited in this application.
The BIM model-based engineering budgeting method in the embodiment is stored in a memory of the terminal device through the terminal device, and is loaded and executed on a processor of the terminal device, so that the terminal device is convenient to use.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A BIM model-based engineering budgeting method is characterized by comprising the following steps:
acquiring historical construction drawing data, and calculating to obtain a historical budget result based on a BIM (building information modeling) model and the construction drawing data;
acquiring historical completion drawing data corresponding to the historical construction drawing data, and calculating by using preset budget software to obtain a historical completion result;
obtaining result difference data according to the historical budget result and the historical completion result;
adjusting the BIM according to the result difference data to obtain a BIM optimization model;
and when target construction drawing data of uncompleted projects are obtained, estimating to obtain a target budget result based on the BIM optimization model and the target construction drawing data.
2. The BIM-model-based engineering budgeting method of claim 1, wherein the obtaining of historical construction drawing data and the calculating of the historical budgeting result based on the BIM and the construction drawing data comprise:
acquiring a construction type and a project amount corresponding to the construction type based on the historical construction drawing data;
and obtaining a historical budget result based on the construction type and the engineering quantity corresponding to the construction type.
3. The BIM model-based engineering budgeting method according to claim 1, wherein the obtaining result difference data according to the historical budgeting result and the historical completion result comprises:
acquiring historical engineering quantity based on the historical budget result;
acquiring historical completion engineering quantities based on the historical completion results;
judging whether the historical engineering quantity is the same as the historical completion engineering quantity or not;
if the historical engineering quantity is different from the historical completion engineering quantity, obtaining result difference data as engineering quantity change;
and if the historical engineering quantity is the same as the historical completion engineering quantity, obtaining result difference data as engineering material change.
4. The BIM model-based project budgeting method of claim 3, wherein the judging whether the historical project amount and the historical completion project amount are the same comprises:
acquiring a drawing version of the historical construction drawing;
judging whether the version number of the historical construction drawing is 1;
if the historical construction drawing version is 1, the historical engineering quantity is the same as the historical completion engineering quantity;
and if the version number of the historical construction drawing is not 1, the historical engineering quantity is different from the historical completion engineering quantity.
5. The BIM model-based engineering budgeting method of claim 4, wherein the adjusting the BIM model according to the result difference data comprises:
obtaining a project amount change value based on the historical completion project amount and the historical project amount, and taking the project amount change value as result difference data;
and matching the engineering quantity change value to a corresponding BIM model component, and adjusting the BIM model.
6. The BIM model-based project budgeting method of claim 1, wherein the judging whether the historical project amount and the historical completion project amount are the same comprises:
acquiring component categories based on the historical completion quantities;
acquiring a component name based on the component category;
judging whether the component has a model error or not based on the component name;
if the component has model errors, the historical engineering quantity is different from the historical completion engineering quantity;
and if the component has no model error, the historical engineering quantity is the same as the historical completion engineering quantity.
7. The BIM model-based engineering budgeting method of claim 6, wherein the adjusting the BIM model according to the result difference data further comprises:
acquiring a component error value corresponding to the component name based on the component name;
obtaining actual engineering quantity based on the component error value and the engineering quantity corresponding to the component name, and taking the actual engineering quantity as result difference data;
adjusting the BIM model based on the result difference data.
8. A BIM model based engineering budget system employing the method of any one of claims 1-7, comprising:
the first calculation module (1) is used for acquiring historical construction drawing data and calculating to obtain a historical budget result based on a BIM (building information modeling) and the construction drawing data;
the second calculation module (2) is used for acquiring historical completion drawing data corresponding to the historical construction drawing data and calculating a historical completion result through preset budget software;
the acquisition module (3) is used for acquiring result difference data according to the historical budget result and the historical completion result;
the optimization module (4) is used for adjusting the BIM according to the result difference data to obtain a BIM optimization model;
and the estimation module (5) is used for estimating and obtaining a target budget result based on the BIM optimization model and the target construction drawing data when the target construction drawing data of the unfinished project is obtained.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and being executable on the processor, characterized in that the method of any of claims 1-7 is used when the computer program is loaded and executed by the processor.
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