A Rapid BIM Design Method for Railway Sound Barriers Based on Bentley

Abstract

This invention provides a Bentley-based BIM rapid design method for railway sound barriers, addressing the low efficiency and poor design accuracy of manual sound barriers for special bridges and roadbeds. The method includes the following steps: determining the sound barrier type and design site based on noise prevention and control measures; creating parameterized sound barrier components, creating a component unit library in .cel format for immediate access, and determining a standard model for assembling the sound barrier with the center of the H-shaped steel base plate as the unit base point; running the sound barrier design toolkit, selecting the required cell model and the corresponding sound barrier design parameters, selecting the compiled information encoding with a one-to-one correspondence, and then selecting the extracted bridge edge line to automatically lay out the three-dimensional design of the sound barrier for the required work site. Furthermore, by determining the statistical range of the sound barrier at the work site, the engineering quantity of each sound barrier component within the work site range can be output with one click according to professional requirements.

Description

Technical field:

[0001] The present invention belongs to the field of environmental engineering technology and relates to a Bentley-based BIM rapid design method for railway sound barriers, which is a method for rapid and accurate design of sound barriers. Background technology:

[0002] Sound barrier design is the core content of railway environmental engineering design work. Different types of sound barrier models involve many components. The creation and installation of sound barrier unit models require technicians to have a certain amount of structural professional knowledge. In addition, a large amount of repetitive work leads to low design efficiency, time-consuming and labor-intensive design, and poor accuracy of sound barrier layout.

[0003] Therefore, there is an urgent need to explore a drawing method for railway sound barrier design to improve design methods, increase efficiency and ensure design quality. Summary of the invention:

[0004] The purpose of this invention is to provide a Bentley-based BIM-based rapid design method for railway sound barriers. This method overcomes the low efficiency and poor design accuracy of manual design of special bridge and roadbed sound barriers in the existing technology. It also addresses the problems of insufficient technical expertise and the impact of extensive repetitive work on production costs. This method ensures consistency between drawings and models, reduces errors and omissions in construction drawings, and improves design accuracy and efficiency.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A Bentley-based BIM rapid design method for railway sound barriers is characterized by comprising the following steps: determining the sound barrier type and design work site, parametrically creating a three-dimensional model of each component in MicroStation CONNECT Edition (hereinafter referred to as MS); creating a cell library model for each component in the form of .cel, and assembling a standard sound barrier model by determining the cell base point; running the sound barrier design tool set SimulateAlignment, clicking the required cell model and corresponding parameters of the sound barrier design, and clicking the compiled information code with a one-to-one correspondence, then automatically laying out the three-dimensional design of the sound barrier at the required work site by extracting the bridge edge line, and outputting the engineering quantity of each sound barrier component within the work site range by one click by determining the statistical range of the sound barrier at the work site.

[0007] The above method comprises the following steps:

[0008] Step 1: Determine the structure type, material and height of the sound barrier according to the noise prevention requirements, and determine the location and length of the sound barrier;

[0009] Step 2: Create a 3D model of each component through parameterization in MS and formulate the constraint relationships and constraint variables of each component; establish a .cel parametric unit library, specify the center of the H-beam bottom plate as the unit model base point, and assemble it to form a standard sound barrier model;

[0010] Step 3: Open the bridge model with the work point determined. Based on the positioning code of the bridge vertical wall entity, extract each edge of the vertical wall. Use the long edges along the line direction and in the common relative spatial position as the edge line components. Connect the adjacent long edges with a start and end spacing of 0 to form a line string. Those with non-zero spacing remain unchanged to extract the bridge vertical wall edge line. Create a new edge line layer and define the line type color as green. Load the extracted vertical wall edge line into the specified edge line layer. Using the constraint data between the edge line and the center of the H-shaped steel base plate of the sound barrier, use the translation command to translate the bridge edge line to the edge of the shield to obtain the bridge edge line.

[0011] Step 4: The sound barrier design tool set module includes the settings for the starting distance of the sound barrier, the left and right sides of the sound barrier, the distance between the sound barrier insertion point and the starting point, the work point type, the left and right and up and down offset distances of the sound barrier, the safety channel import port, the MDB file import port, the attribute table import port, the edge line selection, and the associated cell file path options;

[0012] Add the required cell units and attribute information table in the sound barrier design tool set, select the bridge edge line extracted in step 3, and design the required work point sound barrier structure model with one click;

[0013] Step 5: Create different types of sound barrier quantity table headers according to the professional engineering quantity table statistical template and requirements, select the work site range to be counted, and confirm with the left mouse button according to the positioning code information of different types of sound barriers, and export the required sound barrier quantity table with one click.

[0014] Step 4 includes the following steps:

[0015] Step 4.1: Use the SimulateAlignment tool in the noise barrier design tool set to calculate the distance between the first insertion point and the starting point of the edge line, find the tangent direction of the insertion point, and determine the first insertion point. The default value is 0m.

[0016] Step 4.2: Second insertion point = first insertion point position + length of the 3D standard sound barrier model. Calculate the tangent direction of the insertion point and determine the second insertion point.

[0017] Step 4.3: Similarly, from the first insertion point to the last insertion point, all the required bridge edge line locations are equipped with sound barriers;

[0018] Step 4.4: Enter the left and right offset distances and the upper and lower offset distances. The default is 0m. Select the file path of the Cell unit corresponding to the left and right lines, and select the attribute information table corresponding to the model. Click the left mouse button to confirm and design the required work point sound barrier structure model with one click.

[0019] Step 5 includes the following steps:

[0020] Step 5.1: For the models in the selection set, classify and count the number of noise barriers according to their location codes;

[0021] Step 5.2: Query the database for the unit engineering quantity corresponding to each component of the type of sound barrier according to each positioning code;

[0022] Step 5.3: Multiply the quantity or length obtained in step 5.1 by the unit engineering quantity queried in step 5.2 to obtain the total engineering quantity of each component of the sound barrier with the specified location code;

[0023] Step 5.4: Fill in the Excel table of the quantity of each type of sound barrier project according to the table header and template provided by the professional, and export it.

[0024] Compared with the prior art, the present invention has the following advantages and effects:

[0025] 1. This invention uses BIM model information and specialized 3D models of bridges, roadbeds, and stations to design 3D sound barriers. This approach balances intuitiveness and authenticity, addressing the low efficiency and poor accuracy of manual design for sound barriers for special bridges and roadbeds. This ensures consistency between drawings and models, reduces errors and omissions in construction drawings, and improves design quality and efficiency.

[0026] 2. The design method of the present invention can solve the problems of insufficient professional knowledge reserves of technical personnel and a large amount of repetitive work affecting production costs. It can realize the rapid and accurate design of three-dimensional sound barrier models, synchronously add component attribute information, count the number of sound barrier projects, and export the project quantity table with one click. Description of the drawings:

[0027] Figure 1 A flowchart for the rapid design of a BIM sound barrier according to the present invention;

[0028] Figure 2 The operation process of the bridge sound barrier embodiment of the present invention;

[0029] Figure 3 Noise barrier design toolset interface;

[0030] Figure 4 Example of BIM rapid deployment of a 3.3m metal bridge sound barrier;

[0031] Figure 5 An example of exporting the engineering quantity statistics of a 3.3m metal sound barrier on a bridge;

[0032] Figure 6 This is a table of engineering statistics for an operational example of the present invention. Specific implementation method:

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] See also Figure 1 The present invention provides a BIM rapid design method for railway sound barriers based on Bentley, comprising the following steps:

[0035] Step 1: Determine the structural type, material and height of the sound barrier according to the noise prevention and control requirements, and determine the location and length of the sound barrier.

[0036] Step 2: Create a three-dimensional model of each component through parameterization in MS and formulate the constraint relationship and constraint variables of each component; establish a .cel parametric unit library, specify the unit model base point as the center of the H-shaped steel base plate, and assemble it to form a standard sound barrier model.

[0037] Step 3: Open the bridge design model with the work point determined. Based on the location code of the bridge vertical wall entity, extract each side of the vertical wall. Use the long sides that are along the line direction and have a common relative spatial position as the edge line component. Connect the adjacent long sides with a starting and ending distance of 0 to form a line string. The ones with non-zero spacing (i.e., bridge expansion joints) remain unchanged. Extract the edge line of the bridge model. The operation code is as follows:

[0038]

[0039]

[0040] Create a new edge line layer and define the line type color as green. Load the vertical wall edge line extraction results into the specified edge line layer. Based on the constraint data between the edge line and the center of the H-shaped steel base plate of the sound barrier (the vertical line direction spacing is 37.5mm), use the translation command to translate the bridge edge line to the edge of the shield to obtain the edge line.

[0041] Step 4: The main modules of the sound barrier design tool set of the present invention include the sound barrier starting mileage setting, the left and right sides of the sound barrier, the distance between the sound barrier insertion point and the starting point, the work point type, the left and right and up and down offset distances of the sound barrier, the safety channel import port, the MDB file import port, the attribute table import port, the edge line selection and the associated cell file path options.

[0042] Add the required cell units and attribute information table in the sound barrier design tool set, select the edge line extracted in step 3, and design the required work point sound barrier structure model with one click.

[0043] Step 4 is as follows:

[0044] Step 4.1: Use the SimulateAlignment tool in the noise barrier design tool set to calculate the distance between the first insertion point and the starting point of the edge line, find the tangent direction of the insertion point, and determine the first insertion point. The default value is 0m.

[0045] Step 4.2: Second insertion point = first insertion point position + length of the 3D standard sound barrier model (e.g., the standard bridge sound barrier model is 2m). Calculate the tangent direction of the insertion point and determine the second insertion point.

[0046] Step 4.3: Similarly, from the first insertion point to the last insertion point (the default is 10,000m), all the required bridge edge line locations are equipped with sound barriers.

[0047] Step 4.4: Enter the left and right offset distances and the upper and lower offset distances. The default values are both 0m. Select the file path where the Cell units corresponding to the left and right lines are located. Click the left mouse button to confirm and design the required work point sound barrier structure model with one click.

[0048] Step 5: Create different types of sound barrier quantity table headers according to the professional engineering quantity table statistical template and requirements, select the work site range to be counted, and confirm with the left mouse button according to the positioning code information of different types of sound barriers, and export the required sound barrier quantity table with one click.

[0049] Step 5.1: Select the centralized model and perform classification and quantity statistics according to the location code of the sound barrier;

[0050] Step 5.2: Query the database for the unit engineering quantity corresponding to each component of the type of sound barrier according to each positioning code;

[0051] Step 5.3: Multiply the quantity (or length) obtained in step 5.1 by the unit engineering quantity queried in step 5.2 to obtain the total engineering quantity of each component of the sound barrier;

[0052] Step 5.4: Fill in the Excel table of the quantity of each type of sound barrier project according to the table header and template provided by the professional, and export it.

[0053] Example:

[0054] See also Figure 2 、 Figure 3 、 Figure 4 and Figure 5Taking the BIM 3D design of a bridge noise barrier at a railway construction site as an example, the following steps are included:

[0055] The Bentley-based BIM rapid design method for railway noise barriers is characterized by:

[0056] Step 1: Determine the structural type, material and height of the sound barrier according to the requirements of noise prevention and control, and determine the location and length of the sound barrier. Submit the location and structural type of the sound barrier to the bridge professional. The bridge professional will reserve the foundation of the sound barrier shield according to the setting of the sound barrier.

[0057] Step 2: Use MS in the Bently design platform to create a 3D model of each component of the sound barrier based on the above step 1. Assemble the constraint data of each component to form a standard sound barrier model with the center of the H-shaped steel bottom plate as the base point.

[0058] Step 2 is as follows:

[0059] Step 2.1: Based on Step 1 above, use MS in the Bently design platform to create parametric 3D models of each component, including H-shaped steel columns, sound-absorbing panels, top gussets, U-bolts, H-shaped steel bottom plates, etc.

[0060] Step 2.2: Construct the constraint relationship of each component, specify the base point of each component model, and establish the .cel unit model library of each component model;

[0061] Step 2.3: Assemble the components in the .cel unit model library according to the constraint data to form a three-dimensional sound barrier standard model with the center of the H-shaped steel column base plate as the center coordinate.

[0062] Step 3: Refer to the professional 3D model of the bridge where the sound barrier is required and extract the edge line.

[0063] Step 3 is as follows:

[0064] Step 3.1: Open the 3D model of the bridge at the desired work point and view the information of each component in the layer manager;

[0065] Step 3.2: Filter and obtain the "Bridge Deck System - Vertical Wall" model based on the positioning code, including the left side (vertical wall 01) and the right side (vertical wall 02);

[0066] Step 3.3: Extract each edge of the vertical wall (rectangle);

[0067] Step 3.4: Select the long sides along the line direction and at the common relative spatial position as the edge line components;

[0068] Step 3.5: Connect the adjacent long sides with a spacing of 0 between the start and end points to form a line string. The ones with non-zero spacing (i.e., expansion joints) remain unchanged.

[0069] Step 3.6: Create a new edge line layer and specify a line type color to highlight the edge line. Load the results of step 3.5 into the specified layer. Based on the constraint data between the bridge vertical wall edge line and the center of the H-beam bottom plate of the sound barrier (with a vertical spacing of 37.5mm), translate the vertical wall edge extraction line to the edge of the shield to obtain the edge line.

[0070] Step 4: Open the sound barrier design tool set, add the cell unit and attribute information table, select the edge line, and click OK to design the required bridge sound barrier structure model with one click.

[0071] Step 4 is as follows:

[0072] Step 4.1: Use the SimulateAlignment tool in the noise barrier design tool set to calculate the distance between the first insertion point and the starting point of the edge line, find the tangent direction of the insertion point, and determine the first insertion point. The default value is 0m.

[0073] Step 4.2: Second insertion point = first insertion point position + length of the 3D standard sound barrier model (e.g., the standard bridge sound barrier model is 2m). Calculate the tangent direction of the insertion point and determine the second insertion point.

[0074] Step 4.3: Similarly, from the first insertion point to the last insertion point (the default is 10,000m), all the required bridge edge line locations are equipped with sound barriers.

[0075] Step 4.4: Enter the left and right offset distances, and the upper and lower offset distances. The default values are both 0m. Select the file path where the Cells corresponding to the left and right lines are located.

[0076] Step 4.5: Establish a one-to-one correspondence between the standard model of the sound barrier and the information code, and create an attribute information template for use in generating the sound barrier layout diagram;

[0077] Step 4.6: Import the EXCEL attribute information table of the required sound barrier structure;

[0078] Step 4.7: Select the edge line and lay out the sound barrier;

[0079] Step 4.8: Finally, copy a single H-shaped steel column and insert it into the first insertion point to complete the 3D design of the work site sound barrier.

[0080] Step 5: Select the scope of the work sites to be counted, create a statistical template according to the engineering quantity table, and export the engineering quantity table corresponding to the sound barriers with different positioning codes with one click.

[0081] Step 5 is as follows:

[0082] Step 5.1: Select the models within the statistical range and enter the selection set;

[0083] Step 5.2: Extract the location codes of the objects in the selection set, filter the objects in the selection set based on whether they have location codes and the type of location codes, and remove the non-sound barrier parts;

[0084] Step 5.3: Parse the location code, determine the type of sound barrier, count the number of standard sound barrier models, and query the database for the unit project quantity corresponding to each component of the sound barrier type based on each location code;

[0085] Multiply the quantity (or length) obtained in step 5.3 by the queried unit project quantity to obtain the total project quantity of each component of the sound barrier;

[0086] Step 5.4: Query and select the table of main engineering quantities of the sound barrier corresponding to the centralized positioning code, output the final results according to the type of sound barrier, and export them to EXCEL with one click.

[0087] Table 1 is the attribute information table of the operation example of the present invention;

[0088] Figure 6 This is a table of engineering statistics for an operational example of the present invention.

[0089] Table 1

[0090] project content name Metal plug-in sound barrier LID Coding 06-01-020-001 IFD Coding 53-17 10 20 10 length 2m high 3.3m Material Type Metal Line speed 350km / h

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any equivalent structural changes made using the contents of the description and drawings of the present invention should be included in the patent protection scope of the invention.

Claims

1. A Bentley-based BIM rapid design method for railway noise barriers, characterized by: The following steps are involved: Step 1: Determine the structure type, material and height of the sound barrier according to the noise prevention requirements, and determine the location and length of the sound barrier; Step 2: Create a 3D model of each component through parameterization in MS and formulate the constraint relationship and constraint variables of each component; Establish a .cel parametric unit library, designate the center of the H-shaped steel base plate as the unit model base point, and assemble it to form a standard sound barrier model; Step 3: Open the bridge model with the work point determined. Based on the positioning code of the bridge vertical wall entity, extract each edge of the vertical wall. Use the long edges along the line direction and in the common relative spatial position as the edge line components. Connect the adjacent long edges with a start and end spacing of 0 to form a line string. Those with non-zero spacing remain unchanged to extract the bridge vertical wall edge line. Create a new edge line layer and define the line type color as green. Load the extracted vertical wall edge line into the specified edge line layer. Using the constraint data between the edge line and the center of the H-shaped steel base plate of the sound barrier, use the translation command to translate the bridge edge line to the edge of the shield to obtain the bridge edge line. Step 4: The sound barrier design tool set module includes the settings for the starting distance of the sound barrier, the left and right sides of the sound barrier, the distance between the sound barrier insertion point and the starting point, the work point type, the left and right and up and down offset distances of the sound barrier, the safety channel import port, the MDB file import port, the attribute table import port, the edge line selection, and the associated cell file path options; Add the required cell units and attribute information table in the sound barrier design tool set, select the bridge edge line extracted in step 3, and design the required work point sound barrier structure model with one click; Step 5: Create different types of sound barrier quantity table headers according to the professional engineering quantity table statistical template and requirements, select the work site range to be counted, and confirm with the left mouse button according to the positioning code information of different types of sound barriers, and export the required sound barrier quantity table with one click.

2. The method for rapid BIM design of railway noise barriers based on Bentley according to claim 1 is characterized by: Step 4 includes the following steps: Step 4.1: Use the SimulateAlignment tool in the noise barrier design tool set to calculate the distance between the first insertion point and the starting point of the edge line, find the tangent direction of the insertion point, and determine the first insertion point. The default value is 0m. Step 4.2: The second insertion point = the first insertion point position + the length of the 3D standard model of the sound barrier. Calculate the tangent direction of the insertion point and determine the second insertion point. Step 4.3: Similarly, from the first insertion point to the last insertion point, all the required bridge edge line locations are equipped with sound barriers; Step 4.4: Enter the left and right offset distances and the upper and lower offset distances. The default is 0m. Select the file path of the Cell unit corresponding to the left and right lines, and select the attribute information table corresponding to the model. Click the left mouse button to confirm and design the required work point sound barrier structure model with one click.

3. The method for rapid BIM design of railway noise barriers based on Bentley according to claim 1 is characterized by: Step 5 includes the following steps: Step 5.1: For the models in the selection set, classify and count the number of each type of sound barrier according to its location code; Step 5.2: Query the database for the unit engineering quantity corresponding to each component of this type of sound barrier based on each location code; Step 5.3: Multiply the quantity or length obtained in step 5.1 by the unit project quantity queried in step 5.2 to obtain the total project quantity of each component of the specified positioning code sound barrier; Step 5.4: Fill in the Excel table of the project quantity of each type of sound barrier according to the table header and template provided by the professional, and export it.

Images