BIM (Building Information Modeling) and system for fixed buttress of comprehensive pipe gallery gas cabin

Abstract

The invention discloses a BIM modeling method for a fixed buttress of a gas cabin of a utility tunnel, and the method comprises the steps: importing a plane graph of the utility tunnel into BIM calculation software, and constructing an overall BIM model of the utility tunnel; a plane graph of the fixed buttress in the total plane graph is obtained, and drawing is conducted according to geometric attributes of any section graph and graphic representation steel bars; calculating a BIM model of stirrups and a second row of longitudinal bars in the fixed buttress and a steel bar engineering quantity; drawing the outer contour of the section, and reconstructing, drawing and calculating the longitudinal steel bars of the section according to the arrangement form, specification, model and number of the longitudinal steel bars built in the section of the fixed buttress; and through an engineering quantity extraction function of BIM quantity calculation software, batch selection is carried out, and engineering calculation details of the corresponding fixed buttresses are checked and extracted. Through the functions of existing software, in combination with professional atlas and drawing specifications, a traditional modeling teaching method is subverted and subjected to reconstruction analysis, a specific modeling calculation method of the comprehensive pipe gallery is organized, the actual use requirement of work is met, investment is controlled, and the purposes of creating effects and benefits are truly achieved.

Description

Technical Field

[0001] The invention belongs to the field of building construction, and in particular relates to a BIM modeling and system for a fixed pier of a gas compartment of an integrated pipe gallery. Background Art

[0002] The large-scale promotion of comprehensive pipe corridor professional projects across the country can be said to be a new and significant attempt in my country's construction field. Modern comprehensive pipe corridors present new characteristics of high concentration, prefabrication and assembly products, intelligent operation and maintenance, BIM technology informatization, and market-oriented construction. In addition, the capital demand for pipe corridor projects is huge, so its engineering cost work should also be continuously innovated and improved with the promotion and development of comprehensive pipe corridors and BIM technology, so as to better save costs and control investment.

[0003] The foundation and key work of engineering cost is undoubtedly the refined engineering quantity calculation. The application of BIM quantity calculation technology is an important manifestation of the integration of traditional engineering cost and BIM technology. At present, various types of BIM modeling and quantity calculation software on the market are in a state of contention, but they are mainly developed and optimized for housing construction projects.

[0004] In addition, due to the technical development issues of the current BIM modeling and quantity calculation software for underground comprehensive pipeline corridors or the lack of in-depth familiarity of software engineers with relevant professional engineering specifications and rules, the development of the functions of this type of professional engineering BIM modeling and quantity calculation software is not thorough enough and cannot meet the actual usage requirements of the project participants. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a BIM modeling and system for fixed piers of a gas compartment in an integrated pipe gallery, which solves the problem that BIM modeling software in the prior art cannot meet the quantity calculation of complex fixed pier modeling.

[0006] The present invention adopts the following technical solutions to solve the above technical problems:

[0007] A BIM modeling method for a fixed pier of a gas compartment of an integrated pipe gallery comprises the following steps:

[0008] Step 1: Import the plan of the integrated pipe gallery into the BIM quantity calculation software to build the overall BIM model of the integrated pipe gallery;

[0009] Step 2: Obtain the geometric parameter information of the fixed pier according to the node number in the general plan, and draw it according to the geometric properties of any section view and the steel bars shown in the figure; draw and calculate the BIM model and steel quantity of the stirrups and the second row of longitudinal bars in the fixed pier;

[0010] Step 3, combining the cross-sectional drawing in step 2, draw the outer contour of the cross-sectional view, and then reconstruct and draw the calculated longitudinal reinforcement of the cross-sectional view according to the arrangement form, specification, model, and number of the built-in longitudinal reinforcement of the fixed pier cross-sectional view;

[0011] Step 4: Repeat step 3 and calculate the longitudinal reinforcement of all sections by lowering the elevation and superimposing the components;

[0012] Step 5. Use the quantity extraction function of the BIM quantity calculation software to batch select and view the engineering calculation details of the corresponding fixed piers.

[0013] In step 2, the specific process of reconstructing the drawing calculation is as follows:

[0014] Step 2.1, use the special-shaped column component function to draw the outer contour of the fixed pier plane, and draw the outer large stirrups and inner small stirrups according to the design requirements;

[0015] Step 2.2, use the longitudinal reinforcement dotting function to draw the second row of longitudinal reinforcement. After editing, fix the fixed pier containing the stirrups and the second row of longitudinal reinforcement at a certain distance from the inner side of the gas tank outer wall;

[0016] Step 2.3, click on the summary calculation element to obtain the BIM model of the stirrups and the second row of longitudinal bars of the fixed pier and the related steel quantity data;

[0017] Step 2.4, lock and fix the pier element.

[0018] In step 3, the specific process of reconstructing the drawing calculation is as follows:

[0019] Step 3.1, use the custom line function to draw the outer contour of the section in its section editing interface;

[0020] Step 3.2, draw the longitudinal reinforcement according to the layout form, specification, model and number of the built-in longitudinal reinforcements in each section of the fixed pier;

[0021] Step 3.3, calculate the longitudinal reinforcement of the section and lock the section element.

[0022] When drawing the longitudinal reinforcement of the pier, first, use the stirrup drawing function to draw the general shape of the longitudinal reinforcement of the fixed pier, that is, the stirrup auxiliary line; secondly, use the orthogonal offset adjustment function to formally draw the fixed pier longitudinal reinforcement according to the drawn stirrup auxiliary line, adjust the longitudinal reinforcement hook length to 0, and delete the stirrup auxiliary line; then, arrange the fixed pier longitudinal reinforcement at the corresponding position and perform calculations; finally, after the calculation is completed, lock the fixed pier section element, lower the elevation of the fixed pier section element, and reserve layout space for drawing the longitudinal reinforcement of another section.

[0023] After editing is completed, the fixed pier containing stirrups and the second row of longitudinal reinforcement will be fixed at a position 200mm away from the inner side of the outer wall of the gas tank.

[0024] In step 2, first, the main pipe gallery is located according to the deformation joint number of the general plan, and the corresponding type of fixed piers are determined in its gas cabin, and the node details of the specific type of fixed piers are drawn and calculated.

[0025] The specific process of constructing the overall BIM model of the comprehensive pipeline corridor is as follows:

[0026] The main body of a certain section of the corridor with deformation joints is selected as the description object, and the raft slab, side wall, top plate and armpit corner components of this section of the corridor are drawn according to the corresponding parameters to obtain the overall BIM model of the comprehensive corridor.

[0027] Among them, the engineering drawing module inputs the generated drawings of the fixed piers of the gas compartment of the integrated pipeline corridor into the BIM platform, and the BIM platform calls the described method to process the drawings and obtain the engineering quantity calculation of the fixed piers of the gas compartment of the integrated pipeline corridor.

[0028] The system draws the same fixed pier including stirrups, the second row of longitudinal bars and section longitudinal bars from different angles so that the specifications, models, layout range and dimensions of the steel bars meet the design requirements. By overlapping components at different angles in space, the fixed pier can complete the calculation of the engineering quantity in the same BIM model.

[0029] A computer storage medium stores computer readable instructions, which, when executed by a processor, call all or part of the steps of the method.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This method draws the same fixed pier including stirrups, the second row of longitudinal bars and section longitudinal bars from different angles so that the specifications, models, layout range and dimensions of the steel bars meet the design requirements. By overlapping components at different angles in space, the fixed pier can complete the calculation of the engineering quantity in the same BIM model.

[0032] 2. It solves the functional shortcoming of existing BIM quantity calculation software that cannot draw fixed piers with complex steel bar arrangement, so that the integrity of the BIM model and the accuracy of engineering quantity data are guaranteed.

[0033] 3. Through the functions of existing software, combined with professional atlases, drawing specifications and flexible combined modeling methods, the purpose of refined quantity calculation can be achieved, the actual work needs can be met and investment can be controlled, so as to truly create benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is the overall BIM model of the comprehensive pipeline corridor of the present invention.

[0035] Figure 2 A schematic diagram is drawn for defining the internal stirrups and the second row of steel bars of the fixed pier according to the present invention.

[0036] Figure 3 This is a three-dimensional rendering of the stirrups in the fixed pier according to the present invention.

[0037] Figure 4 This is a three-dimensional rendering of the second row of longitudinal steel bars built into the fixed pier of the present invention.

[0038] Figure 5 The longitudinal reinforcement section definition drawing of the fixed pier 1-1 section in the embodiment of the present invention

[0039] Figure 6 It is a three-dimensional effect diagram of the longitudinal reinforcement of the fixed pier 1-1 section according to an embodiment of the present invention.

[0040] Figure 7 This is a drawing to define the longitudinal reinforcement section of the fixed pier 2-2 according to an embodiment of the present invention.

[0041] Figure 8 It is a three-dimensional effect diagram of the longitudinal reinforcement of the fixed pier 2-2 section according to an embodiment of the present invention.

[0042] Fig. 9 This is a three-dimensional rendering of the longitudinal reinforcement after the sections of the fixed piers 1-1 and 2-2 are superimposed in an embodiment of the present invention.

[0043] Fig.10 This is the amount of formwork and concrete work for a single G-XA300 fixed pier in an embodiment of the present invention.

[0044] Fig.11 This is the internal reinforcement quantity of a single G-XA300 fixed pier in the embodiment of the present invention. DETAILED DESCRIPTION

[0045] The structure and working process of the present invention will be further described below in conjunction with the accompanying drawings.

[0046] One of the difficulties in BIM modeling of underground comprehensive pipe gallery is that the current BIM quantity calculation software does not directly define the method of modeling and calculating the fixed pier attached to the main pipe gallery gas tank. Therefore, it is impossible to draw the special node (fixed pier) and its three-dimensional display and quantity calculation of the steel bar through conventional methods. Usually, the quantity of this part of the component is only completed by traditional manual calculation or directly input the calculation formula in the software. The BIM refined quantity calculation technology cannot be fully reflected, which affects the data transmission with the lightweight BIM platform in the later stage. In response to the above problems, our BIM team has summarized a set of effective drawing and calculation methods for the pipe gallery gas tank pier and its built-in steel bar through continuous exploration and research, repeated practice with drawings, and ensured that the three-dimensional model can meet the requirements of drawing design and specification nodes. Compared with the traditional manual calculation method and the method of directly inputting the calculation formula into the software, the efficiency of engineering quantity calculation is improved, the difference between the construction drawing budget quantity and the actual on-site sample is reduced, the shortcomings of the existing BIM quantity calculation software operation function are solved, and accurate data support is provided to all parties involved in the project.

[0047] A BIM modeling method for a fixed pier of a gas compartment of an integrated pipe gallery comprises the following steps:

[0048] Step 1: Import the plan of the integrated pipe gallery into the BIM quantity calculation software to build the overall BIM model of the integrated pipe gallery;

[0049] Step 2: Obtain the plan view of the fixed pier in the general plan view, and draw it according to the geometric properties of any section view and the steel bars shown in the diagram; calculate the BIM model and steel quantity of the stirrups and the second row of longitudinal bars in the fixed pier;

[0050] Step 3, combining the cross-sectional drawing in step 2, draw the outer contour of the cross-sectional view, and then reconstruct and draw the calculated longitudinal reinforcement of the cross-sectional view according to the arrangement form, specification, model, and number of the built-in longitudinal reinforcement of the fixed pier cross-sectional view;

[0051] Step 4: Repeat step 3 to reconstruct and draw the longitudinal reinforcements of all sections;

[0052] Step 5. Use the quantity extraction function of the BIM quantity calculation software to batch select and view the engineering calculation details of the corresponding fixed piers.

[0053] Specific embodiments, such as Figures 1 to 11 As shown,

[0054] Locate the main pipe gallery according to the deformation joint number of the general plan, determine the corresponding type of fixed pier in its gas tank, and draw and calculate the node details of the specific type of fixed pier. The steps are as follows:

[0055] 1. First, import the plan of the integrated pipe gallery into the BIM quantity calculation software, select the main body of the pipe gallery from the deformation joint 1+055 to 1+090 as the description object, and draw the raft, side wall, top plate, axilla corner and other components of this section of the pipe gallery according to the corresponding parameters to obtain the overall BIM model of the integrated pipe gallery. This step is a routine operation and a prerequisite for drawing the fixed piers of the gas tank, that is, the main structure of the pipe gallery is the carrier of the fixed piers. For details, see Figure 1 .

[0056] 2. According to the main body of the pipe gallery of the deformation joint 1+055 to 1+090 in the general plan, the fixed pier model G-XA300 is drawn according to the geometric properties of the plan view, 1-1 section view, and 2-2 section view of the fixed pier G-XA300 and the steel bars shown in the figure. First, use the special-shaped column component function to draw the plane outer contour of the fixed pier with an outer size of 600*450, draw the outer layer large stirrups and inner layer small stirrups with specifications of C10@150 according to the design requirements, and use the longitudinal reinforcement dotting function to draw the second row of longitudinal reinforcements with specifications of C16. After editing, fix the fixed pier containing stirrups and the second row of longitudinal reinforcements at a position 200mm away from the inner side of the gas tank outer wall. Click on the summary calculation element to obtain the BIM model and steel quantity data of the stirrups and the second row of longitudinal reinforcements of the fixed pier, and then lock the fixed pier element. The purpose of this step is to draw and calculate the BIM model and steel quantity of the stirrups and the second row of longitudinal reinforcements in the fixed pier. The purpose of locking the fixed pier element is to prevent the number of its built-in stirrups from increasing or decreasing due to subsequent operations. Figure 2 , Figure 3 , Figure 4 .

[0057] 3. Combined with the fixed pier 1-1 section drawing, use the custom line function to draw the outer contour of the 1-1 section in its section editing interface, and then draw it according to the layout form, specification, model, and number of the built-in longitudinal reinforcement of the fixed pier 1-1 section. When drawing the longitudinal reinforcement of the pier, first use the stirrup drawing function to draw the general shape of the longitudinal reinforcement of the fixed pier (stirrup auxiliary line), and then use the orthogonal offset adjustment function to formally draw the fixed pier longitudinal reinforcement according to the above-mentioned stirrup auxiliary line. The length of the longitudinal reinforcement hook is adjusted to 0, and the stirrup auxiliary line is deleted. After arranging it in the corresponding position and completing the calculation, lock the fixed pier 1-1 section element, and lower the elevation of the fixed pier 1-1 section element. The purpose of this step is to calculate the longitudinal reinforcement of the 1-1 section by reconstructing the modeling method. The purpose of deleting the auxiliary lines of the stirrups is to assist in the calculation of the longitudinal reinforcement of the fixed pier 1-1 section to prevent the stirrups from generating additional reinforcement engineering, so they must be deleted; the elevation of the fixed pier 1-1 section element is lowered to provide modeling space for the subsequent drawing of the pier 2-2 section element to avoid space conflict; locking the fixed pier 1-1 element is to prevent the internal longitudinal reinforcement from changing in form due to the subsequent elevation adjustment operation, see Figure 5 , Figure 6 .

[0058] 4. Combined with the section drawing of fixed pier 2-2, use the custom line function to draw the outer contour of section 2-2 in its section editing interface, and then draw it according to the layout form, specification, model, and number of built-in longitudinal reinforcements of fixed pier 2-2 section. When drawing the longitudinal reinforcement of the pier, first use the stirrup drawing function to draw the general shape of the longitudinal reinforcement of the fixed pier (stirrup auxiliary line), and then use the orthogonal offset adjustment function to formally draw the longitudinal reinforcement of the fixed pier according to the above stirrup auxiliary line. The length of the longitudinal reinforcement hook is adjusted to 0, and the stirrup auxiliary line is deleted. It is arranged in the corresponding position and the reinforcement quantity calculation is completed, and the overlap of the longitudinal reinforcement of the fixed pier sections 1-1 and 2-2 is completed. The purpose of this step is to calculate the longitudinal reinforcement of section 2-2 through the reconstruction drawing of the modeling method. The purpose of deleting the stirrup auxiliary line is to assist in the drawing and calculation of the longitudinal reinforcement of the fixed pier 2-2 section to prevent the stirrups from generating additional reinforcement quantity, so they must be deleted. See details. Figure 7 , Figure 8 , Fig. 9 .

[0059] 5. Then, through the engineering quantity extraction function of the BIM quantity calculation software, batch select and view the engineering calculation details of the fixed pier with the extracted model G-XA300. For details, see Fig.10 , Fig.11 .

[0060] In summary, by drawing the same fixed pier including stirrups, the second row of longitudinal bars, and the 1-1 and 2-2 section longitudinal bars from different angles, the specifications, models, layout range, and dimensions of the steel bars meet the design requirements, and by using the spatial overlap of components at different angles, the fixed pier can complete the calculation of the engineering quantity in the same BIM model. This solves the functional shortcoming of the existing BIM quantity calculation software that cannot draw fixed piers with complex steel bar arrangements, and ensures the integrity of the BIM model and the accuracy of the engineering quantity data.

[0061] By flexibly using BIM modeling and the refined adjustment method of the steel bars, the problem that the BIM municipal quantity calculation software on the market cannot solve the modeling and calculation of special nodes (fixed piers) of the integrated pipeline corridor by conventional methods has been solved. It can be seen that the potential market size of my country's urban underground integrated pipeline corridors is still large. Once the time is ripe, the integrated pipeline corridor will develop at an extraordinary speed. Therefore, the quality and efficiency of engineering cost work must keep up with and adapt to the rhythm and speed of its development. Through the above innovative BIM modeling quantity calculation method, we edit and adjust the component size and steel bar bending anchor length according to the node markings in the drawings, so that BIM modeling fits the actual on-site production, and makes the tedious engineering quantity calculation work simple and orderly, which greatly improves work efficiency, reduces the workload of budget personnel, and provides accurate engineering quantity data to all parties involved in the construction project, effectively saving costs and controlling investment, and meeting huge market demand.

[0062] It should be understood that the present solution is not limited to the above-mentioned specific implementation methods, and the devices and structures not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present solution without departing from the scope of the technical solution of the present solution, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essential content of the present solution. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present solution without departing from the content of the technical solution of the present solution still falls within the scope of protection of the technical solution of the present solution.

Claims

1. A BIM modeling method for a fixed pier of a gas compartment in a comprehensive pipe gallery, characterized in that: The steps include: Step 1: Import the plan of the integrated pipe gallery into the BIM quantity calculation software to build the overall BIM model of the integrated pipe gallery; Step 2: Obtain the geometric parameter information of the fixed piers according to the node numbers in the general plan, and draw them according to the geometric properties of any section and the steel bars shown in the figure; Draw and calculate the BIM model and steel quantity of the stirrups and the second row of longitudinal reinforcement in the fixed pier; Step 3, combining the cross-sectional drawing in step 2, draw the outer contour of the cross-sectional view, and then reconstruct and draw the calculated longitudinal reinforcement of the cross-sectional view according to the arrangement form, specification, model, and number of the built-in longitudinal reinforcement of the fixed pier cross-sectional view; Step 4: Repeat step 3 and calculate the longitudinal reinforcement of all sections by lowering the elevation and superimposing the components; Step 5. Use the quantity extraction function of the BIM quantity calculation software to batch select and view the engineering calculation details of the corresponding fixed piers.

2. The BIM modeling method for the fixed pier of the integrated pipe gallery gas compartment according to claim 1 is characterized by: In step 2, the specific process of reconstructing the drawing calculation is as follows: Step 2.1, use the special-shaped column component function to draw the outer contour of the fixed pier plane, and draw the outer large stirrups and inner small stirrups according to the design requirements; Step 2.2, use the longitudinal reinforcement dotting function to draw the second row of longitudinal reinforcement. After editing, fix the fixed pier containing the stirrups and the second row of longitudinal reinforcement at a certain distance from the inner side of the gas tank outer wall; Step 2.3, click on the summary calculation element to obtain the BIM model of the stirrups and the second row of longitudinal bars of the fixed pier and the related steel quantity data; Step 2.4, lock and fix the pier element.

3. The BIM modeling method for the fixed pier of the integrated pipe gallery gas compartment according to claim 1 is characterized by: In step 3, the specific process of reconstructing the drawing calculation is as follows: Step 3.1, use the custom line function to draw the outer contour of the section in its section editing interface; Step 3.2, draw the longitudinal reinforcement according to the layout form, specification, model and number of the built-in longitudinal reinforcements in each section of the fixed pier; Step 3.3, calculate the longitudinal reinforcement of the section and lock the section element.

4. The BIM modeling method for the fixed pier of the integrated pipe gallery gas compartment according to claim 3 is characterized in that: When drawing the longitudinal reinforcement of the pier, first, use the stirrup drawing function to draw the general shape of the longitudinal reinforcement of the fixed pier, that is, the stirrup auxiliary line; secondly, use the orthogonal offset adjustment function to formally draw the fixed pier longitudinal reinforcement according to the drawn stirrup auxiliary line, adjust the longitudinal reinforcement hook length to 0, and delete the stirrup auxiliary line; then, arrange the fixed pier longitudinal reinforcement at the corresponding position and perform calculations; finally, after the calculation is completed, lock the fixed pier section element, lower the elevation of the fixed pier section element, and reserve layout space for drawing the longitudinal reinforcement of another section.

5. The BIM modeling method for the fixed pier of the integrated pipe gallery gas compartment according to claim 4 is characterized in that: After editing is completed, the fixed pier containing stirrups and the second row of longitudinal reinforcement will be fixed at a position 200mm away from the inner side of the outer wall of the gas tank.

6. The BIM modeling method for the fixed pier of the integrated pipe gallery gas compartment according to claim 1 is characterized by: In step 2, first, the main pipe gallery is located according to the deformation joint number of the general plan, and the corresponding type of fixed piers are determined in its gas cabin, and the node details of the specific type of fixed piers are drawn and calculated.

7. The BIM modeling method for the fixed pier of the integrated pipe gallery gas compartment according to claim 1 is characterized by: The specific process of constructing the overall BIM model of the comprehensive pipeline corridor is as follows: The main body of a certain section of the corridor with deformation joints is selected as the description object, and the raft slab, side wall, top plate and armpit corner components of this section of the corridor are drawn according to the corresponding parameters to obtain the overall BIM model of the comprehensive corridor.

8. The BIM modeling system for the fixed pier of the gas compartment of the integrated pipe gallery is characterized by: It includes a BIM platform and an engineering drawing module; wherein the engineering drawing module inputs the generated drawings of fixed piers of the gas compartment of the integrated pipeline corridor into the BIM platform, and the BIM platform calls the methods described in claims 1 to 7 to process the drawings and obtain the engineering quantity calculations of the fixed piers of the gas compartment of the integrated pipeline corridor.

9. The BIM modeling system for the fixed pier of the integrated pipe gallery gas compartment according to claim 8 is characterized by: The system draws the same fixed pier including stirrups, the second row of longitudinal bars and section longitudinal bars from different angles so that the specifications, models, layout range and dimensions of the steel bars meet the design requirements. By overlapping components at different angles in space, the fixed pier can complete the calculation of the engineering quantity in the same BIM model.

10. A computer storage medium, characterized in that: The computer storage medium stores computer-readable instructions, which, when executed by a processor, call all or part of the steps of the method described in any one of claims 1 to 7.

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