CN113673020A - Revit model-based engineering cost calculation method - Google Patents

Revit model-based engineering cost calculation method Download PDF

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CN113673020A
CN113673020A CN202111067816.2A CN202111067816A CN113673020A CN 113673020 A CN113673020 A CN 113673020A CN 202111067816 A CN202111067816 A CN 202111067816A CN 113673020 A CN113673020 A CN 113673020A
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金常忠
于杰
倪广春
李闯
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Jiangsu Jiehong Engineering Consultants Co ltd
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Jiehong Run An Engineering Consulting Co ltd
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Abstract

The invention discloses a Revit model-based engineering cost computation method, which integrally adopts a Revit model-based engineering cost computation system, wherein the Revit model-based engineering cost computation system comprises an installation data acquisition module, an installation influence analysis module and an engineering cost computation module, the installation data acquisition module is used for measuring and acquiring installation data required by a building of a current project, the installation influence analysis module is used for analyzing influence factor data on engineering cost in a project engineering construction process, the engineering cost computation module is used for evaluating and computing the engineering cost of an actual curtain wall installation project, and the engineering cost computation module is electrically connected with the installation data acquisition module and the installation influence analysis module.

Description

Revit model-based engineering cost calculation method
Technical Field
The invention relates to the technical field of construction cost, in particular to a Revit model-based construction cost calculation method.
Background
Revit generally refers to the name of a suite of software series available from Autodesk. The Revit series software is constructed for a Building Information Model (BIM) and can help architects to design, build and maintain buildings with better quality and higher energy efficiency.
The construction cost refers to the construction price of the project, and refers to the total sum of all the expenses expected or actually required for completing the construction of one project. The curtain wall is the outer wall enclosure of the building, does not bear the weight, hangs like a curtain, so is also called as a curtain wall, and is a light wall with decorative effect commonly used by modern large-scale and high-rise buildings. With the continuous promotion of economic construction pace in China, curtain wall installation project engineering is getting hot and hot day by day.
In the project engineering of implementing curtain wall installation on a building, the curtain wall installation project construction is a complex implementation process, so that the investment is generally large, and the actual construction period is long; meanwhile, the cost for installing the curtain walls is different due to the influence on the installation of the curtain walls with different heights, conventional buildings, special-shaped buildings and local or seasonal climate and wind power. Therefore, it is difficult to obtain an accurate construction cost of an actual construction in detail until the completion of the entire project. Therefore, it is necessary to design a cost-effective way of engineering based on the Revit model with strong practicability and high-precision budget.
Disclosure of Invention
The invention aims to provide a construction cost calculation method based on a Revit model so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a construction cost accounting formula based on Revit model, this construction cost accounting formula wholly adopts the construction cost accounting system based on Revit model, construction cost accounting system based on Revit model includes installation data acquisition module, installation influence analysis module and construction cost calculation module, installation data acquisition module is used for measuring the collection to the required installation data of building of current project engineering, installation influence analysis module is arranged in analyzing project engineering construction in-process and produces influence factor data to construction cost, construction cost calculation module is used for assessing the construction cost who calculates actual curtain installation engineering, construction cost calculation module is connected with installation data acquisition module and installation influence analysis module electricity.
According to the technical scheme, the installation data acquisition module comprises a model establishing module, a height acquiring module, a surface area acquiring module and a model proportion acquiring module, wherein the model establishing module is used for establishing a model of a building for installing the curtain wall project at present through Revit design, the height acquiring module is used for acquiring a building height data value of the building model, the surface area acquiring module is used for acquiring surface area data of the curtain wall installed on the building model, the model proportion acquiring module is used for displaying and planning a building proportion value of construction in real time according to the scaling of the building model, and the height acquiring module, the surface area acquiring module and the model proportion acquiring module are all electrically connected with the model establishing module.
According to the technical scheme, the installation influence analysis module comprises a proportion output module and a climate prediction module, the proportion output module is used for analyzing and acquiring the proportion of the opposite side in the whole building surface of the building, and the climate prediction module is used for analyzing and predicting the local climate wind power condition during the construction period of project engineering.
According to the technical scheme, the engineering cost calculation module comprises a case database, a benchmark cost calculation module and a factor prediction calculation module, wherein the case database is used for storing installation record data of historical project engineering cases, the benchmark cost calculation module is used for analyzing and calculating benchmark cost of the current building curtain wall installation engineering, the factor prediction calculation module is used for analyzing and calculating a cost improvement value caused by actual construction influence of the building according to current building module data and installation influence data, and the case database is electrically connected with the benchmark cost calculation module.
According to the technical scheme, the engineering cost calculation method based on the Revit model comprises the following steps:
step S1: building a mansion model through Revit series software;
step S2: measuring the building height value of a building model and the surface area value of a curtain wall installed on the building model by auxiliary drawing in Revit series software;
step S3: collecting the proportion of a building model and an actual building, and converting the actual building height value of the building and the surface area value of a mounted curtain wall according to the proportion;
step S4: the installation influence analysis module analyzes and predicts influence factors received during actual engineering construction installation;
step S5: and evaluating and calculating the project construction cost of the building curtain wall to obtain a high-precision project construction cost predicted value, and avoiding influence on economic benefits of related enterprises due to overlarge project construction cost errors.
According to the technical scheme, the proportion output module comprises a special-shaped surface recognition submodule which is electrically connected with the model building module and used for recognizing an irregular curve area existing in the outline of the building model, the climate prediction module comprises a period prediction submodule and a climate data submodule, the period prediction submodule is electrically connected with the surface area acquisition module and used for predicting the installation engineering period according to the surface area of the installed building, the climate data submodule is electrically connected with the period prediction submodule, and the climate data submodule is used for predicting historical climate wind power data of the local area from the construction time to the completion date according to the predicted construction period.
According to the above technical solution, the step S4 further includes the following steps:
step S41: the special-shaped surface recognition submodule scans and recognizes the outline of the mansion model;
step S42: acquiring an area value of an irregular curve area existing in the outline of a building model, and comparing the area value with the surface area value of a mounted curtain wall according to the irregular area value to enable a proportion output module to output the proportion of the special-shaped wall surface of the building;
step S43: the period prediction submodule predicts a time period required by the building construction according to the area and construction experience of the curtain wall installed in the current building and transmits an electric signal of the time period to the climate data submodule;
step S44: the climate data submodule selects climate data according to a construction starting month and an completion month after a construction period, and selects the weather data of a construction local calendar year in the month;
step S45: the climate forecasting module collates and compares climate data of the past years and calculates numerical values of typhoon and raining days in the month period.
According to the above technical solution, the step S5 further includes the following steps:
step S51: calling a historical construction case database, and acquiring historical installation curtain wall record data;
step S52: searching installation data with similar materials and sizes of curtain walls, and acquiring installation cost of a bottom layer in unit area, wherein the installation cost is a basic installation cost value because the installation cost of the bottom layer is extremely low due to environmental factors and form factors of a building;
step S53: the reference construction cost calculation module calculates the basic construction cost value of the building curtain wall according to the unit area construction cost of the similar curtain wall and the area of the current building curtain wall;
step S54: then, the difficulty and the cost improvement of installing curtain walls are considered according to different heights and the occupation ratio of special-shaped surfaces of the buildings; the construction is possibly influenced by the local climate environment of the engineering, and the cost increase value caused by the influenced factors is calculated;
step S55: the project cost calculation module outputs the sum of the reference cost and the cost generated by the factors to obtain a high-precision project cost predicted value, and the influence of overlarge project cost errors on economic benefits of related enterprises is avoided.
According to the above technical solution, in the step S53, the calculation formula of the basic construction cost of the building curtain wall installation is as follows:
Figure 100002_DEST_PATH_IMAGE001
wherein the content of the first and second substances,
Figure DEST_PATH_IMAGE002
the basic construction value of installing the curtain wall for the building is provided;
Figure 633129DEST_PATH_IMAGE003
installing a curtain wall area value for the current building;
Figure DEST_PATH_IMAGE004
the manufacturing value of the unit area of the similar curtain wall is obtained; the basic construction value of the curtain wall in the formula is the product of the basic value of the unit area of the material of the curtain wall installed in the building and the area value of the curtain wall needed to be installed in the front building.
According to the above technical solution, in step S54, the calculation formula of the cost increase value caused by the affected factors is:
Figure 376701DEST_PATH_IMAGE005
in step S55, the calculation formula of the total manufacturing value output by the engineering cost calculation module for the building evaluation calculation is:
Figure DEST_PATH_IMAGE006
wherein the content of the first and second substances,
Figure 218755DEST_PATH_IMAGE007
the manufacturing cost is increased value caused by the influence factors;
Figure DEST_PATH_IMAGE008
building height value of the building;
Figure 676281DEST_PATH_IMAGE009
the occupation ratio of the special-shaped surfaces of the mansion is shown;
Figure DEST_PATH_IMAGE010
to predict the value of typhoons and heavy rain during construction,
Figure 287391DEST_PATH_IMAGE011
the factor of influence on the manufacturing cost is a constant larger than 0;
Figure DEST_PATH_IMAGE012
evaluating and calculating the construction cost of the building curtain wall installation project;
in the formula, the higher the installation height of the curtain wall is, the greater the construction difficulty and the installation weather wind direction influence factors are, the influence of the height of the building on the installation cost of the curtain wall in a curve rising manner can be known; meanwhile, the bigger the opposite side is, the difficulty in installing the curtain wall is increased and the cost for processing the curtain wall is increased; the weather extreme weather also causes the influence of maloperation, and the construction cost of the curtain wall installation is improved; the total construction value output by the building evaluation calculation is the sum of the basic construction value of the installed curtain wall and the cost improvement value caused by the influenced factors.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, by arranging the installation data acquisition module, the installation influence analysis module and the engineering cost calculation module, an appearance model of a building to be installed can be obtained through the Revit model, and different heights of curtain wall installation, conventional buildings, special-shaped buildings and local or seasonal climate wind power are considered in combination; the cost for installing the curtain walls is different, the construction value is obtained through the construction cost calculation mode analysis and calculation, and the effects of strong practicability and high-precision budget are achieved.
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The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the system module composition of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a construction cost calculation mode based on a Revit model comprises a construction cost calculation system based on the Revit model, wherein the construction cost calculation mode integrally adopts the construction cost calculation system based on the Revit model, the construction cost calculation system based on the Revit model comprises an installation data acquisition module, an installation influence analysis module and a construction cost calculation module, the installation data acquisition module is used for measuring and acquiring installation data required by a building of a current project, the installation influence analysis module is used for analyzing influence factor data generated on construction cost in the project engineering construction process, the construction cost calculation module is used for evaluating and calculating construction cost of an actual curtain wall installation project, and the construction cost calculation module is electrically connected with the installation data acquisition module and the installation influence analysis module; by arranging the installation data acquisition module, the installation influence analysis module and the engineering cost calculation module, an appearance model of a building to be installed can be obtained through the Revit model, and different heights of curtain wall installation, conventional buildings, special-shaped buildings and local or seasonal climate wind power are considered in a combined manner; the cost for installing the curtain walls is different, the construction value is obtained through the construction cost calculation mode analysis and calculation, and the effects of strong practicability and high-precision budget are achieved.
The installation data acquisition module comprises a model establishing module, a height acquisition module, a surface area acquisition module and a model proportion acquisition module, wherein the model establishing module is used for establishing a model of a building for currently installing a curtain wall project through Revit design, the height acquisition module is used for acquiring a building height data value of the building model, the surface area acquisition module is used for acquiring surface area data of a curtain wall installed on the building model, the model proportion acquisition module is used for displaying and planning a building proportion value for construction in real time according to the scaling of the building model, and the height acquisition module, the surface area acquisition module and the model proportion acquisition module are all electrically connected with the model establishing module.
The installation influence analysis module comprises a proportion output module and a climate prediction module, the proportion output module is used for analyzing and acquiring the proportion of the opposite side in the whole building face of the building, and the climate prediction module is used for analyzing and predicting the local climate wind power condition during the construction period of project engineering.
The engineering cost calculation module comprises a case database, a benchmark cost calculation module and a factor prediction calculation module, wherein the case database is used for storing installation record data of historical project engineering cases, the benchmark cost calculation module is used for analyzing and calculating benchmark cost of curtain wall installation engineering of the current building, the factor prediction calculation module is used for analyzing and calculating a cost improvement value caused by actual construction influence of the current building according to current building module data and installation influence data, and the case database is electrically connected with the benchmark cost calculation module.
The engineering cost calculation method based on the Revit model comprises the following steps:
step S1: building a mansion model through Revit series software;
step S2: measuring the building height value of a building model and the surface area value of a curtain wall installed on the building model by auxiliary drawing in Revit series software;
step S3: collecting the proportion of a building model and an actual building, and converting the actual building height value of the building and the surface area value of a mounted curtain wall according to the proportion;
step S4: the installation influence analysis module analyzes and predicts influence factors received during actual engineering construction installation;
step S5: and evaluating and calculating the project construction cost of the building curtain wall to obtain a high-precision project construction cost predicted value, and avoiding influence on economic benefits of related enterprises due to overlarge project construction cost errors.
The occupation ratio output module comprises a special-shaped surface recognition submodule which is electrically connected with the model establishing module and used for recognizing irregular curve areas existing in the outline of the building model, the climate prediction module comprises a period prediction submodule and a climate data submodule, the period prediction submodule is electrically connected with the surface area acquisition module and used for predicting the installation engineering period according to the surface area of the installed building, the climate data submodule is electrically connected with the period prediction submodule, and the climate data submodule is used for locally predicting historical climate wind power data from the construction time to the completion date according to the predicted construction period.
Step S4 further includes the steps of:
step S41: the special-shaped surface recognition submodule scans and recognizes the outline of the mansion model;
step S42: acquiring an area value of an irregular curve area existing in the outline of a building model, and comparing the area value with the surface area value of a mounted curtain wall according to the irregular area value to enable a proportion output module to output the proportion of the special-shaped wall surface of the building;
step S43: the period prediction submodule predicts a time period required by the building construction according to the area and construction experience of the curtain wall installed in the current building and transmits an electric signal of the time period to the climate data submodule;
step S44: the climate data submodule selects climate data according to a construction starting month and an completion month after a construction period, and selects the weather data of a construction local calendar year in the month;
step S45: the climate forecasting module collates and compares climate data of the past years and calculates numerical values of typhoon and raining days in the month period.
Step S5 further includes the steps of:
step S51: calling a historical construction case database, and acquiring historical installation curtain wall record data;
step S52: searching installation data with similar materials and sizes of curtain walls, and acquiring installation cost of a bottom layer in unit area, wherein the installation cost is a basic installation cost value because the installation cost of the bottom layer is extremely low due to environmental factors and form factors of a building;
step S53: the reference construction cost calculation module calculates the basic construction cost value of the building curtain wall according to the unit area construction cost of the similar curtain wall and the area of the current building curtain wall;
step S54: then, the difficulty and the cost improvement of installing curtain walls are considered according to different heights and the occupation ratio of special-shaped surfaces of the buildings; the construction is possibly influenced by the local climate environment of the engineering, and the cost increase value caused by the influenced factors is calculated;
step S55: the project cost calculation module outputs the sum of the reference cost and the cost generated by the factors to obtain a high-precision project cost predicted value, and the influence of overlarge project cost errors on economic benefits of related enterprises is avoided.
In step S53, the calculation formula of the basic construction cost of the building curtain wall installation is:
Figure 408056DEST_PATH_IMAGE013
wherein the content of the first and second substances,
Figure 2986DEST_PATH_IMAGE002
the basic construction value of installing the curtain wall for the building is provided;
Figure 670727DEST_PATH_IMAGE003
installing a curtain wall area value for the current building;
Figure 667502DEST_PATH_IMAGE004
the manufacturing value of the unit area of the similar curtain wall is obtained; the basic construction value of the curtain wall in the formula is the product of the basic value of the unit area of the material of the curtain wall installed in the building and the area value of the curtain wall needed to be installed in the front building.
In step S54, the calculation formula of the cost increase value caused by the influence factor is:
Figure 988762DEST_PATH_IMAGE005
in step S55, the calculation formula of the total manufacturing value output by the engineering cost calculation module for the evaluation calculation of the building is:
Figure DEST_PATH_IMAGE014
wherein the content of the first and second substances,
Figure 38364DEST_PATH_IMAGE007
the manufacturing cost is increased value caused by the influence factors;
Figure 368851DEST_PATH_IMAGE008
building height value of the building;
Figure 361078DEST_PATH_IMAGE009
the occupation ratio of the special-shaped surfaces of the mansion is shown;
Figure 384398DEST_PATH_IMAGE010
to predict the value of typhoons and heavy rain during construction,
Figure 94865DEST_PATH_IMAGE011
the factor of influence on the manufacturing cost is a constant larger than 0;
Figure 697885DEST_PATH_IMAGE012
evaluating and calculating the construction cost of the building curtain wall installation project;
in the formula, the higher the installation height of the curtain wall is, the greater the construction difficulty and the installation weather wind direction influence factors are, the influence of the height of the building on the installation cost of the curtain wall in a curve rising manner can be known; meanwhile, the bigger the opposite side is, the difficulty in installing the curtain wall is increased and the cost for processing the curtain wall is increased; the weather extreme weather also causes the influence of maloperation, and the construction cost of the curtain wall installation is improved; the total construction value output by the building evaluation calculation is the sum of the basic construction value of the installed curtain wall and the cost improvement value caused by the influenced factors.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A construction cost computation method based on a Revit model is characterized in that: this engineering cost accounting formula wholly adopts engineering cost accounting system based on Revit model, engineering cost accounting system based on Revit model includes installation data acquisition module, installation influence analysis module and engineering cost calculation module, installation data acquisition module is used for measuring the collection to the required installation data of building of current project engineering, installation influence analysis module is arranged in analyzing project engineering construction in-process and produces influence factor data to engineering cost, engineering cost calculation module is used for assessing the engineering cost who calculates actual curtain installation engineering, engineering cost calculation module is connected with installation data acquisition module and installation influence analysis module electricity.
2. The Revit model-based engineering cost computation method of claim 1, wherein: the installation data acquisition module comprises a model establishing module, a height acquisition module, a surface area acquisition module and a model proportion acquisition module, wherein the model establishing module is used for establishing a model for installing the curtain wall project at present through Revit design, the height acquisition module is used for acquiring a building height data value of the building model, the surface area acquisition module is used for acquiring surface area data of installing the curtain wall on the building model, the model proportion acquisition module is used for displaying and planning a building proportion value of construction in real time according to the scaling of the building model, and the height acquisition module, the surface area acquisition module and the model proportion acquisition module are all electrically connected with the model establishing module.
3. A cost of construction calculation based on Revit model according to claim 2, wherein: the installation influence analysis module comprises a proportion output module and a climate prediction module, the proportion output module is used for analyzing and acquiring the proportion of opposite faces in the whole building face of the building, and the climate prediction module is used for analyzing and predicting the local climate wind power condition during the construction period of project engineering.
4. A cost of construction calculation based on Revit model according to claim 3, wherein: the engineering cost calculation module comprises a case database, a benchmark cost calculation module and a factor prediction calculation module, wherein the case database is used for storing installation record data of historical project engineering cases, the benchmark cost calculation module is used for analyzing and calculating the benchmark cost of the current building curtain wall installation engineering, the factor prediction calculation module is used for analyzing and calculating the cost improvement value caused by the actual construction influence of the building according to the current building module data and the installation influence data, and the case database is electrically connected with the benchmark cost calculation module.
5. The Revit model-based engineering cost computation method according to claim 4, characterized in that: the construction cost calculation method based on the Revit model comprises the following steps:
step S1: building a mansion model through Revit series software;
step S2: measuring the building height value of a building model and the surface area value of a curtain wall installed on the building model by auxiliary drawing in Revit series software;
step S3: collecting the proportion of a building model and an actual building, and converting the actual building height value of the building and the surface area value of a mounted curtain wall according to the proportion;
step S4: the installation influence analysis module analyzes and predicts influence factors received during actual engineering construction installation;
step S5: and evaluating and calculating the project construction cost of the building curtain wall to obtain a high-precision project construction cost predicted value.
6. The Revit model-based engineering cost computation method of claim 5, wherein: the occupation ratio output module comprises a special-shaped surface recognition submodule which is electrically connected with the model establishing module and used for recognizing an irregular curve area existing in the outline of a building model, the climate prediction module comprises a period prediction submodule and a climate data submodule, the period prediction submodule is electrically connected with the surface area acquisition module and used for predicting an installation engineering period according to the surface area of an installed building, the climate data submodule is electrically connected with the period prediction submodule, and the climate data submodule is used for locally predicting historical climate wind power data from the construction time to the completion date according to the predicted construction period.
7. The Revit model-based engineering cost computation method according to claim 6, characterized in that: the step S4 further includes the steps of:
step S41: the special-shaped surface recognition submodule scans and recognizes the outline of the mansion model;
step S42: acquiring an area value of an irregular curve area existing in the outline of a building model, and comparing the area value with the surface area value of a mounted curtain wall according to the irregular area value to enable a proportion output module to output the proportion of the special-shaped wall surface of the building;
step S43: the period prediction submodule predicts a time period required by the building construction according to the area and construction experience of the curtain wall installed in the current building and transmits an electric signal of the time period to the climate data submodule;
step S44: the climate data submodule selects climate data according to a construction starting month and an completion month after a construction period, and selects the weather data of a construction local calendar year in the month;
step S45: the climate forecasting module collates and compares climate data of the past years and calculates numerical values of typhoon and raining days in the month period.
8. The Revit model-based engineering cost computation method of claim 7, wherein: the step S5 further includes the steps of:
step S51: calling a historical construction case database, and acquiring historical installation curtain wall record data;
step S52: searching installation data with similar materials and sizes of curtain walls, and acquiring installation cost of a bottom layer in unit area, wherein the installation cost is a basic installation cost value because the installation cost of the bottom layer is extremely low due to environmental factors and form factors of a building;
step S53: the reference construction cost calculation module calculates the basic construction cost value of the building curtain wall according to the unit area construction cost of the similar curtain wall and the area of the current building curtain wall;
step S54: then, the difficulty and the cost improvement of installing curtain walls are considered according to different heights and the occupation ratio of special-shaped surfaces of the buildings; the construction is possibly influenced by the local climate environment of the engineering, and the cost increase value caused by the influenced factors is calculated;
step S55: and the project cost calculation module outputs the sum of the reference cost and the cost generated by the factors to obtain a high-precision project cost predicted value.
9. The Revit model-based engineering cost computation method of claim 8, wherein: in step S53, the calculation formula of the basic construction cost of the building curtain wall installation is:
Figure DEST_PATH_IMAGE001
；
wherein the content of the first and second substances,
Figure 933488DEST_PATH_IMAGE002
the basic construction value of installing the curtain wall for the building is provided;
Figure DEST_PATH_IMAGE003
installing a curtain wall area value for the current building;
Figure 95086DEST_PATH_IMAGE004
the manufacturing value of the unit area of the similar curtain wall is obtained; the basic construction value of the curtain wall in the formula is the product of the basic value of the unit area of the material of the curtain wall installed in the building and the area value of the curtain wall needed to be installed in the front building.
10. A cost of construction calculation based on Revit model according to claim 9, wherein: in step S54, the calculation formula of the cost increase value caused by the affected factor is:
Figure DEST_PATH_IMAGE005
；
in step S55, the calculation formula of the total manufacturing value output by the engineering cost calculation module for the building evaluation calculation is:
Figure 417483DEST_PATH_IMAGE006
；
wherein the content of the first and second substances,
Figure DEST_PATH_IMAGE007
the manufacturing cost is increased value caused by the influence factors;
Figure 699559DEST_PATH_IMAGE008
building height value of the building;
Figure DEST_PATH_IMAGE009
the occupation ratio of the special-shaped surfaces of the mansion is shown;
Figure 791012DEST_PATH_IMAGE010
to predict the value of typhoons and heavy rain during construction,
Figure DEST_PATH_IMAGE011
the factor of influence on the manufacturing cost is a constant larger than 0;
Figure 890555DEST_PATH_IMAGE012
evaluating and calculating the construction cost of the building curtain wall installation project;
in the formula, the higher the installation height of the curtain wall is, the greater the construction difficulty and the installation weather wind direction influence factors are, the influence of the height of the building on the installation cost of the curtain wall in a curve rising manner can be known; meanwhile, the bigger the opposite side is, the difficulty in installing the curtain wall is increased and the cost for processing the curtain wall is increased; the weather extreme weather also causes the influence of maloperation, and the construction cost of the curtain wall installation is improved; the total construction value output by the building evaluation calculation is the sum of the basic construction value of the installed curtain wall and the cost improvement value caused by the influenced factors.
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