CN107341290B - BIM-based beam slab prefabrication and cast-in-place structure engineering quantity extraction system and method - Google Patents
BIM-based beam slab prefabrication and cast-in-place structure engineering quantity extraction system and method Download PDFInfo
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Abstract
The invention provides a beam slab prefabrication and cast-in-place structure engineering quantity extraction system and method based on BIM, wherein the method comprises the following steps: building a combined structure of a structural beam plate and a member family of a cast-in-place structure by using BIM; endowing a member family of the combined structure with a first visible parameter, and endowing the member family of the cast-in-place structure with a second visible parameter; constructing an integral structure model comprising a combined structure and a cast-in-place structure by utilizing the established member family; inputting a first visible parameter in the overall structure model, and acquiring a first separation model only displaying the combined structure; extracting geometric data of the composite structure in the first separation model, and making an engineering quantity report of the composite structure; inputting a second visible parameter into the overall structure model, and acquiring a second separation model only displaying the cast-in-place structure; and extracting geometric data of the cast-in-place structure in the second separation model, and making an engineering quantity report of the cast-in-place structure. The invention can rapidly extract and calculate the engineering quantity of the prefabrication and cast-in-place parts of the structural beam slab.
Description
Technical Field
The invention relates to an informationized construction technology of a large-scale assembly type frame structure building, in particular to a beam slab prefabrication and cast-in-place structure engineering quantity extraction system and method based on BIM.
Background
The large-scale assembly type frame structure comprises prefabricated composite beams, prefabricated composite plates and prefabricated double T plates, and relates to the characteristics of large building scale, high investment, large quantity of prefabricated components, large data and information quantity and the like.
At present, the conventional model engineering quantity statistical method can only extract the concrete quantity of a component once, if the engineering quantity of a prefabricated layer and the engineering quantity of a cast-in-place layer are extracted separately, the prefabricated layer model and the cast-in-place layer model are required to be established separately, the method not only causes the modeling repeated labor quantity, but also causes errors easily when a user models the components separately because the sizes of the components are different, the user needs to input data into a computer while turning over drawings, simultaneously considers the deduction relation, and still needs to list the engineering quantity calculation expression of each component, so the calculation is very complicated, and the method can cause large modification cost after errors occur. Therefore, a system and a method for rapidly extracting and calculating the engineering quantities of the beam-slab precast layer and the cast-in-place layer of the structure are urgently needed.
Disclosure of Invention
In order to overcome the defects of the background, the invention provides a beam slab prefabrication and cast-in-place structure engineering quantity extraction system and method based on BIM, which can be used for quickly extracting and calculating the engineering quantity of the prefabrication and cast-in-place parts of the structural beam slab.
In order to achieve the above object, a first aspect of the present invention provides a method for extracting engineering quantities of beam slab prefabrication and cast-in-place structures based on BIM, which comprises the steps of:
building a combined structure of a structural beam plate and a member family of a cast-in-place structure by using BIM;
assigning a first visible parameter to the family of components of the composite structure and a second visible parameter to the family of components of the cast-in-place structure;
constructing an integral structure model comprising a combined structure and a cast-in-place structure by utilizing the established member family;
inputting the first visible parameter into the overall structure model to obtain a first separation model only displaying the combined structure;
extracting geometric data of the combined structure in the first separation model, and making an engineering quantity report of the combined structure;
inputting the second visible parameters into the integral structure model to obtain a second separation model only displaying the cast-in-place structure;
and extracting the geometric data of the cast-in-place structure in the second separation model, and making an engineering quantity report of the cast-in-place structure.
In some embodiments, the composite structure comprises a prefabricated section and a cast-in-place section;
and the step of extracting geometric data of the composite structure in the first separation model comprises:
and respectively extracting the geometric data of the prefabricated part and the cast-in-place part of the combined structure in the first separation model by utilizing the shared parameter function of Revit software.
In some embodiments, in establishing the family of structural members of the structural beam panel, further comprising the steps of:
endowing different types of parameters to component families with different cross section shapes by utilizing a shared parameter function of Revit software, and establishing a cell block division principle taking the cross section shapes as a classification standard;
and the step of extracting the geometric data of the prefabricated part and the cast-in-place part respectively comprises the following steps:
and extracting the cross section shapes of the prefabricated part and the cast-in-place part, and dividing the prefabricated part and the cast-in-place part into unit blocks according to the unit block division principle.
In some embodiments, the step of making an engineering volume report of the composite structure comprises:
and outputting a corresponding engineering quantity report according to the divided unit blocks.
In some embodiments, further comprising the step of: generating a component detail table of the prefabricated part of the combined structure according to the acquired first separation model, and checking the component detail table by importing component processing plant data;
and, making the checked construction schedule in a project amount report of the composite structure.
The second aspect of the present invention provides a beam slab prefabrication and cast-in-place structure engineering quantity extraction system based on BIM, which includes:
the BIM modeling module is used for establishing a component family of a combined structure of a structural beam plate and a cast-in-place structure and establishing an integral structure model comprising the combined structure and the cast-in-place structure by utilizing the established component family;
the parameter setting module is used for endowing a member family of the combined structure with a first visible parameter and endowing the member family of the cast-in-place structure with a second visible parameter;
the model filtering module is used for separating a first separation model only displaying the combined structure according to the input first visible parameters and separating a second separation model only displaying the cast-in-place structure according to the input second visible parameters;
the data acquisition module is used for extracting geometric data of the combined structure and the cast-in-place structure; and
and the text display module is used for making the engineering quantity reports of the combined structure and the cast-in-place structure according to the geometric data.
In some embodiments, the composite structure comprises a prefabricated section and a cast-in-place section;
and the data acquisition module is used for respectively extracting the geometric data of the prefabricated part and the cast-in-place part of the combined structure in the first separation model by utilizing the shared parameter function of Revit software
In some embodiments, the parameter setting module is further configured to assign different types of parameters to component families with different cross-sectional shapes by using a shared parameter function of Revit software, and establish a cell block division principle using the cross-sectional shape as a classification standard;
and the system also comprises a dividing unit module which is used for dividing the prefabricated part and the cast-in-place part into unit blocks according to the unit block dividing principle.
In some embodiments, the text display module is configured to output a corresponding engineering quantity report according to the divided unit blocks.
In some embodiments, the system further includes a detail list checking module, configured to generate a component detail list of the prefabricated part of the composite structure according to the acquired first separation model, and check the component detail list by importing component process plant data;
and the text display module is also used for making the checked construction detail table into the engineering quantity report of the combined structure.
Compared with the prior art, the invention has the following advantages:
1. the invention provides a project quantity extraction system and method of a prefabricated structure and a cast-in-place structure of a structural beam plate based on a BIM model, which have the characteristics of quickly and accurately calculating the project quantity of the prefabricated structure and the cast-in-place structure and reducing the complicated and time-consuming manual calculation;
2. the invention can realize the characteristics of real-time correlation and synchronous update of field construction progress and the three-dimensional model, realizes synchronous change of model engineering quantity information and field construction by adjusting the three-dimensional model corresponding to the field construction working condition, can effectively reduce the engineering quantity calculation time, and improves the calculation accuracy and the efficiency.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a beam slab prefabrication and cast-in-place structure engineering quantity extraction system based on BIM in an embodiment of the present invention.
Fig. 2 is a flowchart of a method for extracting engineering quantities of beam slab prefabrication and cast-in-place structures based on BIM in an embodiment of the present invention.
Fig. 3 to 8 are schematic diagrams of a unit block division module of a combined structure of a beam slab prefabrication and cast-in-place structure engineering quantity extraction method based on BIM in an embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments. It should not be understood that the scope of the above-described subject matter of the present invention is limited to the following examples, and any techniques realized based on the present disclosure are within the scope of the present invention.
In the construction of the construction engineering site, cost control is a main factor of engineering profit, engineering quantity calculation is a key link of the cost control, and because the cast-in-place and prefabricated layers of the prefabricated superposed beam slab cannot be accurately and efficiently distinguished in a conventional engineering calculation mode, and manual identification calculation is needed when the cast-in-place and prefabricated layers are separated, the workload is huge and tedious, and mistakes and omissions are easy to occur. The invention utilizes the shared parameter module provided by Revit to develop a parameterization system for automatically distinguishing the combined structure from the cast-in-place structure and simultaneously filtering and separating the prefabricated layer and the cast-in-place layer in the combined structure.
The invention provides a BIM model-based system and a method for extracting engineering quantities of a prefabricated structure and a cast-in-place structure of a structural beam plate, which are used for realizing real-time correlation and synchronous updating of the construction engineering quantities of a BIM three-dimensional model and an assembly type frame structure and assisting project management with visual and fine characteristics in project management application of technology, production, materials and the like.
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings and the specific examples.
First, referring to fig. 1, an embodiment of the present invention provides a beam slab prefabrication and cast-in-place structure engineering quantity extraction system based on BIM, which mainly includes: the system comprises a BIM modeling module, a parameter setting module, a model filtering module 13, a data acquisition module 14, a dividing unit module 15, a text display module 16, a detail list generating module 17 and a detail list checking module 18. The BIM modeling module and the parameter setting module can be realized by using the Revit software of BIM, which is not shown in FIG. 1.
The BIM modeling module is mainly used for establishing a BIM three-dimensional model, and in the embodiment, the BIM modeling module is used for establishing a member family of a combined structure and a cast-in-place structure of a structural beam plate and establishing an integral structure model containing the combined structure and the cast-in-place structure by utilizing the established member family; the combined structure is an assembled combined structure comprising a prefabricated part and a cast-in-place part.
The parameter setting module is used for endowing a member family of the combined structure with a first visible parameter by utilizing Revit software and endowing a member family of the cast-in-place structure with a second visible parameter by utilizing Revut software; in addition, the parameter setting module can also be used for endowing different types of parameters to component families with different cross section shapes by utilizing the shared parameter function of Revit software, and establishing a cell block division principle taking the cross section shapes as a classification standard;
the model filtering module 13 is a large-scale assembly type frame structure which contains a large number of prefabricated components, the model filtering module 13 is developed secondarily by combining the visibility parameter of Revit and the function of a model filter, and the working principle of the model filtering module 13 is as follows: respectively assigning a combined structure visibility parameter 1 (namely a first visible parameter) and a cast-in-place structure visibility parameter 0 (namely a second visible parameter) during initial modeling; when the shortcut key 1 is output in the system software, the system software judges that only the combined structure is displayed, and when 0 is input, the system software judges that only the cast-in-place structure is displayed. The model filtering module 13 can filter and separate the combined structure of each layer from the cast-in-place structure by using the principle.
The data acquisition module 14 develops a geometric data acquisition module by using a shared parameter function provided by Revit software, and the module has the working principle that: the method comprises the steps of setting shared parameters for prefabricated layer data and cast-in-place layer data (including the section geometric dimension, the member length and the member visibility parameters of corresponding members) of a combined structure, and combining a list function to realize separation and extraction of geometric data of a prefabricated part and a cast-in-place part of the combined structure.
The dividing unit module 15 is used for dividing the unit block modules according to the section shapes of the prefabricated parts of the combined structure, carrying out unit block division on the beam and the plate members of the combined structure according to a preset unit block division principle by utilizing a shared parameter function provided by Revit software, and dividing the division rule according to the section shapes of the members; each unit block includes a plurality of members having the same sectional shape and different sectional sizes. The working principle of the system module is as follows: at the initial stage of modeling, the section type parameters of each component are given by utilizing the sharing parameters of the component family, a cell block division principle is established, and after the integral model is completed, the module can automatically divide cell blocks according to the section types.
And the text display module 16 is used for developing an engineering quantity report text display module by utilizing a list function provided by Revit software, and outputting an engineering quantity report according to the type of the unit blocks divided by the sectional shape of the prefabricated part. Combining the model filtering module 13, if the model filtering module 13 judges that the combined structure is the combined structure, outputting a corresponding engineering quantity report according to which type of unit block the section size of the prefabricated part is; and if the model filtering module 13 judges that the cast-in-place structure is the cast-in-place structure, outputting a corresponding cast-in-place structure engineering quantity report.
And the detail list generating module 17 is used for filtering and separating the combined structure and the cast-in-place structure based on the structural beam-slab model filtering module 13, and then generating a prefabricated component detail list aiming at the beam-slab components of the prefabricated part in the combined structure.
The detail list checking module 18 is configured to introduce a component model number list provided by the component manufacturing plant into the detail list checking module 18, and check the component model number list with a component detail list generated by the BIM. The operating principle of the detail list checking module 18 is as follows: each prefabricated component has a unique component number, taking the prefabricated frame beam 3-PCKL-2A-76-7UP as an example, when the BIM component list has the number and the imported component manufacturing plant list does not have the number, software can automatically prompt that the sequence cannot be matched and highlight the component in a model; otherwise, when the BIM component list does not have the number and the imported component process plant list has the number, the software automatically prompts that the sequence cannot be matched and the model lacks the corresponding component.
Referring to fig. 2, an embodiment of the present invention provides a method for extracting engineering quantities of beam slab prefabrication and cast-in-place structures based on BIM, which mainly includes the following steps:
step 1: arranging and designing construction drawings, establishing BIM modeling standard and modeling flowA process;
step 2: establishing a precast beam and slab family model, and defining the parameterization of the precast beam and slab family; editing BIM software structure beam and board family
A parameter;
in step 1, a building module is used to build a component family of a composite structure of a structural beam slab and a cast-in-place structure, and a parameter setting module is used to set parameters for the component family of the built composite structure and the component family of the cast-in-place structure, for example: assigning a first visible parameter to a family of members of the composite structure using Revit software; endowing a second visible parameter to a component family of the cast-in-place structure by utilizing Revut software; endowing different types of parameters to component families with different cross section shapes by utilizing a shared parameter function of Revit software, and establishing a cell block division principle taking the cross section shapes as a classification standard; thereby establishing a parameterized model of the structural beam slab.
The combined structure is an assembled beam-slab structure formed by combining a prefabricated part and a cast-in-place part.
And step 3: loading the prefabricated beam slab family, drawing a combined structure and a cast-in-place structure to form a complete set of project structure mold
Molding;
in the step 3, the member family of the built structural beam plate is selected to build an integral structure model which accords with the project and comprises a combined structure and a cast-in-place structure, the member model built by the BIM can be associated with the actual engineering project, and the BIM model is applied to the engineering project.
And 4, step 4: the model filtering module 13 is utilized to filter and divide the combined structure and the cast-in-place structure according to the construction section and the floor plane
Leaving;
the filtering separation of the combined structure and the cast-in-place structure in the step 4 can be realized by adopting the following method:
developing a model filtering module in a secondary mode by combining the visibility parameter of Revit software and the function of a model filter, and respectively endowing a first visible parameter '1' of a combined structure and a second visible parameter '0' of a cast-in-place structure during initial modeling; at this time:
when a first visible parameter '1' is input into the overall structure model, a first separation model which only displays the combined structure can be obtained;
when a second visible parameter "0" is input into the overall structure model, a second separate model showing only the cast-in-place structure can be obtained.
Therefore, the calculation of the deduction relationship existing when the combined structure model and the cast-in-place structure model which are associated with each other are separately modeled can be avoided.
Step 5, classifying the geometrical sizes of the sections of the prefabricated layer and the cast-in-place layer in the combined structure by using the data acquisition module 14
Reading out;
the data acquisition module 14 is a geometric data acquisition module developed using the shared parameter function provided by Revit software. By setting the sharing parameters for the combined structure: the prefabricated layer data and the cast-in-place layer data (including the section geometric dimension, the member length and the member visibility parameters of corresponding members) are combined with the list function to realize the separation and extraction of the geometric data of the prefabricated layer and the cast-in-place layer of the combined structure in the first separation model; similarly, the data obtaining module 14 may also be used to separate and extract geometric data of the cast-in-place structure in the second separation model.
Step 6: the prefabricated layer beam slab is divided into unit modules according to the sectional dimension of the prefabricated layer of the combined structure, and the prefabricated layer beam slab is scaled according to the sectional dimension
Automatically dividing unit blocks according to inch types;
in the step 6, a dividing unit module 15 is adopted, cell blocks are divided according to the section shape of the prefabricated layer of the combined structure, the beam and the plate member of the prefabricated layer of the combined structure are divided by using a shared parameter function provided by Revit software, and a dividing rule is a 'cell block dividing principle' established at the initial modeling stage and is divided according to the section shape of the member; therefore, each of the divided unit blocks includes a plurality of members having the same cross-sectional shape and different cross-sectional sizes. With reference to fig. 3 to 8, in which fig. 3 to 6 show a certain unit block of a beam composite structure, which includes a plurality of beam members having the same (rectangular) bottom cross-sectional shape and different cross-sectional dimensions, a prefabricated part a of a beam is set at the lower part of each beam member, a cast-in-place part b of the beam is set at the upper part of each beam member, and the prefabricated part a and the cast-in-place part b of each beam member are distinguished by using Revit software, so as to distinguish the engineering quantities of the prefabricated part a and the cast-in-place part b in the beam composite structure; fig. 7 and 8 show that a certain unit block of the combined structure of the panels includes a plurality of beam members having the same cross-sectional shape (rectangular shape) and different cross-sectional sizes, a prefabricated part a of a panel is set at the lower part of each panel member, a cast-in-place part b of the panel is set at the upper part of each panel member, and the prefabricated part a and the cast-in-place part b of each panel member are distinguished by using Revit software, so as to distinguish the engineering quantities of the prefabricated part a and the cast-in-place part b in the combined structure of the panels. In the step, the invention uses the sharing parameter of the component family to give each component section type parameter in the initial stage of the modeling, and the module can automatically divide the unit blocks according to the section types after the integral model is completed.
And 7: the type of the unit block divided according to the section size of the prefabricated layer by using the project amount report text display module 16
Outputting a project amount report, judging which type of unit block the cross section size of the prefabricated layer is, and outputting a corresponding project amount report
Informing;
and developing an engineering quantity report text display module 16 by using a list function provided by Revit software, and outputting an engineering quantity report according to the type of the unit blocks divided by the section shape of the prefabricated layer. If the combined structure is judged by combining the model filtering module 13, outputting a corresponding engineering quantity report according to which type of unit block the section size of the prefabricated layer is; if the cast-in-place structure is judged, outputting the corresponding cast-in-place structure engineering quantity.
And 8: the module 17 is generated by utilizing the concrete list of the precast beam slab, and after the combined structure and the cast-in-place structure are separated by filtering, a needle is used
Generating a detailed list of prefabricated components for a precast beam slab in a composite structureSingly;
based on the structural beam slab model filtering module, after the combined structure and the cast-in-place structure are filtered and separated, a prefabricated part detail list is generated aiming at the prefabricated beam slab in the combined structure;
and step 9: the module 18 for checking the detail list of precast beam slabs is used to introduce the components provided by the component processing plant into the module
The model number list is checked with a component detail list generated by the BIM;
the list of the number of model numbers of the components provided by the component manufacturing plant is imported into the list checking module 18 to be checked against the list of the component list generated by the BIM. The working principle of the module is as follows: each prefabricated component has a unique component number, taking the prefabricated frame beam 3-PCKL-2A-76-7UP as an example, when the BIM component list has the number and the imported component manufacturing plant list does not have the number, software can automatically prompt that the sequence cannot be matched and highlight the component in a model; otherwise, when the BIM component list does not have the number and the imported component process plant list has the number, the software automatically prompts that the sequence cannot be matched and the model lacks the corresponding component.
Step 10: the engineering quantity obtained by the steps is used for guiding the field to report the concrete approach material plan and the auxiliary quotient
And (5) processing the amount of the engineering calculation.
The invention provides a construction beam slab precast layer and cast-in-place layer engineering quantity extraction system and method based on a BIM model, wherein the system comprises a construction beam slab model filtering module; a structural beam slab geometric data acquisition module; dividing the unit block modules according to the section shapes of prefabricated layers of a prefabricated and cast-in-place combined structure (hereinafter collectively referred to as a combined structure); a project amount report text display module; prefabricating a beam plate detail list module; and the precast beam plate detail list checking module. By applying the method, field technicians can quickly extract the engineering quantities of the structural beam-slab prefabricated layer and the cast-in-place layer and check the detail list of the prefabricated beam-slab components according to the BIM model, the accuracy of the engineering quantities of field construction can be efficiently and accurately ensured, the construction period is shortened, the cost is saved, information required by projects is extracted by taking the high-precision model as a basis, and the projects are managed by visual and fine characteristics in project management applications such as technology, production, materials and the like.
By applying the method, field technicians can quickly extract the engineering quantities of the structural beam-slab prefabricated layer and the cast-in-place layer and check the detail list of the prefabricated beam-slab components according to the BIM model, the accuracy of the engineering quantities of field construction can be efficiently and accurately ensured, the construction period is shortened, the cost is saved, information required by projects is extracted by taking the high-precision model as a basis, and the projects are managed by visual and fine characteristics in project management applications such as technology, production, materials and the like.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A beam slab prefabrication and cast-in-place structure engineering quantity extraction method based on BIM is characterized by comprising the following steps:
building a combined structure of a structural beam plate and a member family of a cast-in-place structure by using BIM;
assigning a first visible parameter to the family of components of the composite structure and a second visible parameter to the family of components of the cast-in-place structure;
constructing an integral structure model comprising a combined structure and a cast-in-place structure by utilizing the established member family;
inputting the first visible parameter into the overall structure model to obtain a first separation model only displaying the combined structure;
extracting geometric data of the combined structure in the first separation model, and making an engineering quantity report of the combined structure;
inputting the second visible parameters into the integral structure model to obtain a second separation model only displaying the cast-in-place structure;
and extracting the geometric data of the cast-in-place structure in the second separation model, and making an engineering quantity report of the cast-in-place structure.
2. The BIM-based beam slab prefabrication and cast-in-place structural engineering quantity extraction method according to claim 1, wherein: the combined structure comprises a prefabricated part and a cast-in-place part;
and the step of extracting geometric data of the composite structure in the first separation model comprises:
and respectively extracting the geometric data of the prefabricated part and the cast-in-place part of the combined structure in the first separation model by utilizing the shared parameter function of Revit software.
3. A BIM based beam slab prefabrication and cast-in-place structural engineering quantity extraction method as claimed in claim 2, further comprising the steps of, in constructing the component family of the structural beam slab:
endowing different types of parameters to component families with different cross section shapes by utilizing a shared parameter function of Revit software, and establishing a cell block division principle taking the cross section shapes as a classification standard;
and the step of extracting the geometric data of the prefabricated part and the cast-in-place part respectively comprises the following steps:
and extracting the cross section shapes of the prefabricated part and the cast-in-place part, and dividing the prefabricated part and the cast-in-place part into unit blocks according to the unit block division principle.
4. A BIM based beam slab prefabrication and cast-in-place structural work volume extraction method as claimed in claim 3, wherein the step of making a work volume report of the composite structure includes:
and outputting a corresponding engineering quantity report according to the divided unit blocks.
5. A BIM based beam slab prefabrication and cast-in-place structural engineering quantity extraction method as claimed in claim 1, further comprising the steps of:
generating a component detail table of the prefabricated part of the combined structure according to the acquired first separation model, and checking the component detail table by importing component processing plant data;
and, making the checked construction schedule in a project amount report of the composite structure.
6. The utility model provides a prefabricated and cast-in-place structural engineering volume of beam slab system of extracting based on BIM which characterized in that includes:
the BIM modeling module is used for establishing a component family of a combined structure of a structural beam plate and a cast-in-place structure and establishing an integral structure model comprising the combined structure and the cast-in-place structure by utilizing the established component family;
the parameter setting module is used for endowing a member family of the combined structure with a first visible parameter and endowing the member family of the cast-in-place structure with a second visible parameter;
the model filtering module is used for separating a first separation model only displaying the combined structure according to the input first visible parameters and separating a second separation model only displaying the cast-in-place structure according to the input second visible parameters;
the data acquisition module is used for extracting geometric data of the combined structure and the cast-in-place structure; and
and the text display module is used for making the engineering quantity reports of the combined structure and the cast-in-place structure according to the geometric data.
7. A BIM-based beam slab prefabrication and cast-in-place structural engineering quantity extraction system according to claim 6, wherein: the combined structure comprises a prefabricated part and a cast-in-place part;
and the data acquisition module is used for respectively extracting the geometric data of the prefabricated part and the cast-in-place part of the combined structure in the first separation model by utilizing the shared parameter function of Revit software.
8. A BIM based beam slab prefabrication and cast in place structural engineering quantity extraction system as claimed in claim 7, wherein: the parameter setting module is also used for endowing different types of parameters to component families with different cross section shapes by utilizing the shared parameter function of Revit software, and establishing a cell block division principle taking the cross section shapes as a classification standard;
and the system also comprises a dividing unit module which is used for dividing the prefabricated part and the cast-in-place part into unit blocks according to the unit block dividing principle.
9. A BIM based beam slab prefabrication and cast in place structural engineering quantity extraction system according to claim 8, wherein: and the text display module is used for outputting a corresponding engineering quantity report according to the divided unit blocks.
10. A BIM-based beam slab prefabrication and cast-in-place structural engineering quantity extraction system according to claim 6, wherein: the system also comprises a detail list checking module, which is used for generating a component detail list of the prefabricated part of the combined structure according to the acquired first separation model and checking the component detail list by importing component processing plant data;
and the text display module is also used for making the checked construction detail table into the engineering quantity report of the combined structure.
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