Vibration isolation trench effect analysis method based on BIM technology

Abstract

The invention relates to the related field of civil engineering, in particular to a vibration isolation trench effect analysis method based on a BIM technology, and the method comprises the steps: importing project data through a BIM model, setting material attributes, boundary conditions and loading conditions, and carrying out vibration simulation analysis; secondly, according to the simulation result, the vibration weakening amplitude, the transmissibility and the energy distribution of the vibration isolation trench are quantitatively analyzed, and the vibration isolation effect of the vibration isolation trench is evaluated; thirdly, searching an optimal design scheme by repeatedly iterating the design parameters, and carrying out cost-benefit analysis; and finally, arranging an optimization result into a report, providing the report for project design and management personnel for reference, and guiding actual construction or design adjustment. According to the method, the vibration isolation effect is remarkably improved, the construction cost is greatly reduced, the number of trial and error times is reduced, and the design efficiency is improved. In addition, the optimized vibration isolation trench design further enhances the structural safety and living comfort of a project, and has high application and popularization value and economic benefits.

Description

Technical Field

[0001] The present invention relates to the field of civil engineering, and in particular to a vibration isolation trench effect analysis method based on BIM technology. Background Art

[0002] In the development of urban buildings and infrastructure, vibration isolation technology is one of the important means to reduce the impact of vibration on the surrounding environment. As one of the vibration isolation measures, the vibration isolation trench effectively reduces the propagation of ground vibration by setting up a physical barrier between the vibration source and the sensitive area. However, the traditional vibration isolation trench effect analysis method mainly relies on empirical estimation and field testing, which is not only inefficient but also difficult to guarantee accuracy. With the development of information technology, BIM technology has shown great potential in the full life cycle management of engineering projects, including design, construction, operation and maintenance, but its application in vibration isolation effect analysis is still immature. Summary of the invention

[0003] The purpose of the present invention is to provide a vibration isolation trench effect analysis method based on BIM technology to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a vibration isolation trench effect analysis method based on BIM technology, comprising the following steps:

[0005] Step 1: Build a BIM model of the project: Based on the project's geographic information, building structure information, and environmental data, a detailed BIM model of the project is built. The model includes the building's 3D geometry, soil type, groundwater level, and potential vibration sources.

[0006] Step 2: Definition of vibration isolation trench design parameters: Define the vibration isolation trench design parameters based on the geological conditions of the project area, the structural characteristics of the building and the characteristics of the vibration source. The design parameters include but are not limited to the width, depth and shape of the vibration isolation trench;

[0007] Step 3: Vibration isolation simulation analysis: Using the BIM model and combining it with the principle of mechanical vibration, simulate the vibration isolation effect of the vibration isolation trench under different design parameters. During the analysis, consider the influence of multiple factors, including the nature of the soil, the physical characteristics of the vibration isolation trench itself, and the frequency distribution of the vibration source;

[0008] Step 4: Result evaluation and optimization: Based on the results of the vibration isolation simulation analysis, the effect of the vibration isolation trench is evaluated. The evaluation criteria include the vibration reduction amplitude and the cost-benefit analysis of the vibration isolation trench. The optimal vibration isolation trench design solution is found through repeated iterations of design parameters.

[0009] Step 5. Report generation and application: Organize the analysis results in step 4 into a report format and provide it to the project design and management personnel for reference. The report content includes but is not limited to quantitative analysis of vibration isolation effects, recommended optimization points for vibration isolation trench design, and cost estimation. Finally, the report is used to guide the actual vibration isolation trench construction and design adjustments.

[0010] Preferably, the specific steps of constructing the project BIM model in step 1 are as follows:

[0011] Step 11: Collect basic project information:

[0012] Project geographic information: determine the longitude and latitude coordinates of the project, understand the terrain characteristics of the project location through topographic maps and elevation data, collect information on buildings, roads, and plants around the project, and ensure that the model is consistent with the actual environment;

[0013] Building structure information: obtain detailed design drawings of the project's plan, elevation, and section; record the building's structural type, as well as the size and material of its main components;

[0014] Environmental data: Understand the soil type of the project site through geological survey reports; obtain local groundwater level data; collect climate data for the project area; identify potential vibration sources around and within the project;

[0015] Step 12. Choose the right BIM software: Choose the right BIM software based on the complexity and requirements of the project;

[0016] Step 13: Establish a geographic model: Import the project topographic map in step 11 into the BIM software to generate a terrain model of the project; import the elevation data of the project location; import surrounding buildings, roads, and vegetation environment objects into the model to form a complete geographic environment model; at the same time, according to the geological survey report, establish a three-dimensional model of different soil layers, mark the boundaries and soil characteristics of each soil layer, and import the groundwater level data into the model to indicate the distribution and height of the groundwater level;

[0017] Step 14: Build a building model: Import the floor plan of the project in step 11 into the BIM software, generate the floor layout of the building, import the elevation and section drawings, build a three-dimensional geometric model of the building, and model each structural component in detail based on the structural information;

[0018] Step 15, import vibration source information: first determine the vibration source locations inside the project and outside the project; then, based on the characteristics of the vibration source, record its vibration frequency distribution, record the vibration intensity of the vibration source, including the maximum vibration amplitude and the average vibration amplitude, and simulate the propagation path of the vibration from the source to the building;

[0019] Step 16: Comprehensive modeling: Integrate the geographic model, building model and vibration source information model to form a complete project BIM model; then verify the BIM model, specifically perform geometric verification, attribute verification and logical verification;

[0020] Step 17: Optimize and adjust the model: Optimize and adjust the model according to actual needs to ensure that it can accurately reflect the actual situation of the project; during the project progress, update the data in the model in a timely manner to ensure the timeliness and accuracy of the model.

[0021] Preferably, the specific implementation content of the definition of the vibration isolation groove design parameters in step 2 is as follows:

[0022] Preliminary setting of vibration isolation trench design parameters: Width: Calculate the wavelength of the vibration wave according to the frequency of the vibration source, and determine the preliminary width of the vibration isolation trench based on this; Depth: Determine the preliminary depth of the vibration isolation trench according to the foundation form and burial depth of the building, combined with the characteristics of the soil; The shape of the vibration isolation trench should be parallel to the propagation direction of the vibration wave and form an effective barrier between the vibration source and the sensitive area;

[0023] Optimize design parameters: Width sensitivity: Use the BIM model to simulate the vibration isolation effects under different widths, depths and shapes, and analyze the impact of width, depth and shape on the vibration isolation effect;

[0024] Comprehensive optimization: Combined with vibration isolation effect, cost, construction difficulty and other factors, the optimization tool of BIM software is used to conduct multi-objective optimization analysis. Based on the simulation results of the BIM model, the design parameters are continuously adjusted to find the optimal vibration isolation trench design solution;

[0025] Confirmation and recording of design parameters: Submit the initially set vibration isolation trench design parameters to relevant experts for review to ensure the rationality and feasibility of the parameters; record the finalized width, depth and shape, as well as the reasons for selecting the width, depth and shape;

[0026] Generation and sharing of design documents: The finalized design parameters of the vibration isolation trench are organized into detailed design documents, which are then shared with the project's design team, construction team, and review team through the BIM platform to ensure transparency and consistency of information.

[0027] Preferably, the specific implementation steps of the vibration isolation simulation analysis in step 3 are as follows:

[0028] Step 31: Determine the vibration analysis software based on the project characteristics and configure the software’s computing environment to ensure that it can handle complex BIM models and vibration data;

[0029] Step 32, importing the BIM model: exporting the constructed project BIM model into a format suitable for the vibration analysis software, importing the exported BIM model into the selected vibration analysis software, and performing necessary format conversion and data verification;

[0030] Step 33, define material properties: define the material properties of each structural component according to the design drawings and material list of the building; define the properties of the vibration isolation trench material according to the design parameters of the vibration isolation trench; define the material properties of each soil layer according to the geological survey report;

[0031] Step 34, set boundary conditions and loading conditions: according to the actual situation of the project location, set the support and constraint conditions of the foundation, set the boundary conditions of the vibration isolation trench; according to the characteristics of the vibration source, set the loading conditions of the vibration source, including vibration frequency, amplitude, direction, and set the impact of environmental factors on vibration propagation, set wind load, and groundwater level loading conditions;

[0032] Step 35, perform vibration simulation: according to the vibration frequency, set the appropriate time step, mesh the BIM model, ensure the rationality and calculation efficiency of the mesh, run the vibration simulation analysis according to the set boundary conditions and loading conditions, and record the vibration response data of key nodes during the simulation, including displacement, velocity, and acceleration;

[0033] Step 36, analyze the simulation results: analyze the changes in vibration displacement, velocity and acceleration of various parts of the building before and after the vibration isolation trench is set up; calculate the frequency response function before and after the vibration isolation trench is set up to understand the vibration transfer characteristics at different frequencies; analyze the energy loss caused by the vibration isolation trench during the propagation of the vibration wave; analyze the distribution of vibration energy in the project area, and identify energy concentration areas and weak links;

[0034] Step 37: Analysis of the impact of multiple factors

[0035] Influence of soil properties: Analyze the influence of different soil layers on vibration propagation and vibration isolation effect; consider the damping characteristics of the soil and evaluate its contribution to the vibration isolation effect;

[0036] Influence of the physical characteristics of the vibration isolation groove: Analyze the vibration isolation effect of different widths and depths to determine the optimal design size; analyze the vibration isolation effect of different shapes to determine the optimal shape design;

[0037] Influence of vibration source frequency distribution: Analyze the impact of low-frequency vibration, specifically 5-30Hz on the building, and evaluate the low-frequency vibration isolation effect of the vibration isolation trench; analyze the impact of high-frequency vibration, specifically 30-100Hz on the building, and evaluate the high-frequency vibration isolation effect of the vibration isolation trench.

[0038] Preferably, the specific implementation contents of the result evaluation and optimization of step 4 are as follows:

[0039] Organize simulation analysis results: collect vibration response data of each key node in the simulation process in step 3, including displacement, velocity and acceleration, collect data on the transmissibility of vibration waves from the source to the building, and record the distribution of vibration energy in the project area;

[0040] Evaluate the effectiveness of the vibration isolation trench:

[0041] Vibration reduction amplitude assessment: Based on the simulation data, the vibration reduction amplitude of each key node before and after the vibration isolation trench is set up is calculated; Transmission rate assessment: Based on the simulation data, the transmission rate of the vibration wave from the source to the building is calculated, where the lower the transmission rate, the better the vibration isolation effect; Energy distribution assessment: Study the distribution of vibration energy in the project area;

[0042] Benefit evaluation: Calculate the total cost of the vibration isolation trench, that is, the ratio of material cost + construction cost + maintenance cost to the vibration isolation effect, and evaluate its economic feasibility;

[0043] Optimize design parameters: According to the evaluation results of vibration attenuation amplitude and transmissibility, adjust the width, depth and shape of the vibration isolation groove, and re-conduct simulation analysis; according to the simulation results after each parameter adjustment, conduct multiple rounds of iterations to continuously optimize the design parameters. After each round of iteration, re-conduct cost-benefit analysis to ensure that the optimized solution not only has good vibration isolation effect but also is economically feasible, and determine the final design solution.

[0044] Compared with the prior art, the invention has the following beneficial effects: improving the vibration isolation effect and accurate simulation: through the combination of BIM model and mechanical vibration principle, the vibration isolation effect under different design parameters can be accurately simulated to provide scientific data support; multiple factors are considered: comprehensive consideration is given to multiple factors such as soil properties, physical characteristics of vibration isolation trench, frequency distribution of vibration source, etc., to ensure the comprehensiveness and scientificity of vibration isolation trench design; optimized design: by repeatedly iterating design parameters, the optimal design scheme is found to significantly improve the vibration isolation effect;

[0045] Reduce construction costs, cost-benefit analysis: During the simulation analysis process, the economic benefits are combined for evaluation to ensure the economy of the design. By comparing vibration isolation trenches of different materials, shapes, and sizes, the lowest cost and best vibration isolation solution is selected; Reduce trial and error costs: Traditional vibration isolation trench designs often require multiple tests and adjustments, which is costly and time-consuming. The present invention reduces the number of actual tests through virtual simulation, greatly reducing the cost of testing and adjustments; Precision construction: The optimized design can guide the construction team to carry out precise construction, avoiding rework and additional costs due to unreasonable design;

[0046] Improve design efficiency and automate analysis: This invention uses advanced vibration analysis software (such as ABAQUS, ANSYS, etc.) to automatically perform multiple rounds of simulation analysis, greatly improving design efficiency. Data visualization: Displaying simulation results through charts and animations enables designers and managers to intuitively understand the effects of vibration isolation trenches, improving communication and decision-making efficiency. Fast iteration: Adjustment and optimization of design parameters can be carried out quickly, shortening the design cycle and enabling the project to enter the construction phase faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the method flow of the present invention. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1 The present invention provides a technical solution: a vibration isolation trench effect analysis method based on BIM technology, comprising the following steps:

[0050] Step 1: Build a BIM model of the project: Based on the project's geographic information, building structure information and environmental data, a detailed BIM model of the project is built. The model includes the building's 3D geometry, soil type, groundwater level environmental factors, and potential vibration sources.

[0051] The specific steps to build a project BIM model are as follows:

[0052] Step 11: Collect basic project information:

[0053] Project geographic information: determine the longitude and latitude coordinates of the project, understand the terrain characteristics of the project location through topographic maps and elevation data, collect information on buildings, roads, and plants around the project, and ensure that the model is consistent with the actual environment;

[0054] Building structure information: obtain detailed design drawings of the project's plan, elevation, and section; record the building's structural type, as well as the size and material of its main components;

[0055] Environmental data: Understand the soil type of the project site through geological survey reports; obtain local groundwater level data; collect climate data for the project area; identify potential vibration sources around and within the project;

[0056] Step 12. Choose the right BIM software: Choose the right BIM software based on the complexity and requirements of the project;

[0057] Step 13: Establish a geographic model: Import the project topographic map in step 11 into the BIM software to generate a terrain model of the project; import the elevation data of the project location; import surrounding buildings, roads, and vegetation environment objects into the model to form a complete geographic environment model; at the same time, according to the geological survey report, establish a three-dimensional model of different soil layers, mark the boundaries and soil characteristics of each soil layer, and import the groundwater level data into the model to indicate the distribution and height of the groundwater level;

[0058] Step 14: Build a building model: Import the floor plan of the project in step 11 into the BIM software, generate the floor layout of the building, import the elevation and section drawings, build a three-dimensional geometric model of the building, and model each structural component in detail based on the structural information;

[0059] Step 15, import vibration source information: first determine the vibration source locations inside the project and outside the project; then, based on the characteristics of the vibration source, record its vibration frequency distribution, record the vibration intensity of the vibration source, including the maximum vibration amplitude and the average vibration amplitude, and simulate the propagation path of the vibration from the source to the building;

[0060] Step 16: Comprehensive modeling: Integrate the geographic model, building model and vibration source information model to form a complete project BIM model; then verify the BIM model, specifically perform geometric verification, attribute verification and logical verification;

[0061] Step 17: Optimize and adjust the model: Optimize and adjust the model according to actual needs to ensure that it can accurately reflect the actual situation of the project; during the project progress, update the data in the model in a timely manner to ensure the timeliness and accuracy of the model.

[0062] Step 2: Definition of vibration isolation trench design parameters: Define the vibration isolation trench design parameters based on the geological conditions of the project area, the structural characteristics of the building and the characteristics of the vibration source. The design parameters include but are not limited to the width, depth and shape of the vibration isolation trench;

[0063] The specific implementation contents of the definition of vibration isolation trench design parameters are as follows:

[0064] Preliminary setting of vibration isolation trench design parameters: Width: Calculate the wavelength of the vibration wave according to the frequency of the vibration source, and determine the preliminary width of the vibration isolation trench based on this; Depth: Determine the preliminary depth of the vibration isolation trench according to the foundation form and burial depth of the building, combined with the characteristics of the soil; The shape of the vibration isolation trench should be parallel to the propagation direction of the vibration wave and form an effective barrier between the vibration source and the sensitive area;

[0065] Optimize design parameters: Width sensitivity: Use the BIM model to simulate the vibration isolation effects under different widths, depths and shapes, and analyze the impact of width, depth and shape on the vibration isolation effect;

[0066] Comprehensive optimization: Combined with vibration isolation effect, cost, construction difficulty and other factors, the optimization tool of BIM software is used to conduct multi-objective optimization analysis. Based on the simulation results of the BIM model, the design parameters are continuously adjusted to find the optimal vibration isolation trench design solution;

[0067] Confirmation and recording of design parameters: Submit the initially set vibration isolation trench design parameters to relevant experts for review to ensure the rationality and feasibility of the parameters; record the finalized width, depth and shape, as well as the reasons for selecting the width, depth and shape;

[0068] Generation and sharing of design documents: The finalized design parameters of the vibration isolation trench are organized into detailed design documents, which are then shared with the project's design team, construction team, and review team through the BIM platform to ensure transparency and consistency of information.

[0069] Step 3: Vibration isolation simulation analysis: Using the BIM model and combining it with the principle of mechanical vibration, simulate the vibration isolation effect of the vibration isolation trench under different design parameters. During the analysis, consider the influence of multiple factors, including the nature of the soil, the physical characteristics of the vibration isolation trench itself, and the frequency distribution of the vibration source;

[0070] The specific implementation steps of vibration isolation simulation analysis are as follows:

[0071] Step 31: Determine the vibration analysis software based on the project characteristics and configure the software’s computing environment to ensure that it can handle complex BIM models and vibration data;

[0072] Step 32, importing the BIM model: exporting the constructed project BIM model into a format suitable for the vibration analysis software, importing the exported BIM model into the selected vibration analysis software, and performing necessary format conversion and data verification;

[0073] Step 33, define material properties: define the material properties of each structural component according to the design drawings and material list of the building; define the properties of the vibration isolation trench material according to the design parameters of the vibration isolation trench; define the material properties of each soil layer according to the geological survey report;

[0074] Step 34, set boundary conditions and loading conditions: according to the actual situation of the project location, set the support and constraint conditions of the foundation, set the boundary conditions of the vibration isolation trench; according to the characteristics of the vibration source, set the loading conditions of the vibration source, including vibration frequency, amplitude, direction, and set the impact of environmental factors on vibration propagation, set wind load, and groundwater level loading conditions;

[0075] Step 35, perform vibration simulation: according to the vibration frequency, set the appropriate time step, mesh the BIM model, ensure the rationality and calculation efficiency of the mesh, run the vibration simulation analysis according to the set boundary conditions and loading conditions, and record the vibration response data of key nodes during the simulation, including displacement, velocity, and acceleration;

[0076] Step 36, analyze the simulation results: analyze the changes in vibration displacement, velocity and acceleration of various parts of the building before and after the vibration isolation trench is set up; calculate the frequency response function before and after the vibration isolation trench is set up to understand the vibration transfer characteristics at different frequencies; analyze the energy loss caused by the vibration isolation trench during the propagation of the vibration wave; analyze the distribution of vibration energy in the project area, and identify energy concentration areas and weak links;

[0077] Step 37: Analysis of the impact of multiple factors

[0078] Influence of soil properties: Analyze the influence of different soil layers on vibration propagation and vibration isolation effect; consider the damping characteristics of the soil and evaluate its contribution to the vibration isolation effect;

[0079] Influence of the physical characteristics of the vibration isolation groove: Analyze the vibration isolation effect of different widths and depths to determine the optimal design size; analyze the vibration isolation effect of different shapes to determine the optimal shape design;

[0080] Influence of vibration source frequency distribution: Analyze the impact of low-frequency vibration, specifically 5-30Hz on the building, and evaluate the low-frequency vibration isolation effect of the vibration isolation trench; analyze the impact of high-frequency vibration, specifically 30-100Hz on the building, and evaluate the high-frequency vibration isolation effect of the vibration isolation trench.

[0081] Step 4: Result evaluation and optimization: Based on the results of the vibration isolation simulation analysis, the effect of the vibration isolation trench is evaluated. The evaluation criteria include the vibration reduction amplitude and the cost-benefit analysis of the vibration isolation trench. The optimal vibration isolation trench design solution is found through repeated iterations of design parameters.

[0082] The specific implementation contents of result evaluation and optimization are as follows:

[0083] Organize simulation analysis results: collect vibration response data of each key node in the simulation process in step 3, including displacement, velocity and acceleration, collect data on the transmissibility of vibration waves from the source to the building, and record the distribution of vibration energy in the project area;

[0084] Evaluate the effectiveness of the vibration isolation trench:

[0085] Vibration reduction amplitude assessment: Based on the simulation data, the vibration reduction amplitude of each key node before and after the vibration isolation trench is set up is calculated; Transmission rate assessment: Based on the simulation data, the transmission rate of the vibration wave from the source to the building is calculated, where the lower the transmission rate, the better the vibration isolation effect; Energy distribution assessment: Study the distribution of vibration energy in the project area;

[0086] Benefit evaluation: Calculate the total cost of the vibration isolation trench, that is, the ratio of material cost + construction cost + maintenance cost to the vibration isolation effect, and evaluate its economic feasibility;

[0087] Optimize design parameters: According to the evaluation results of vibration attenuation amplitude and transmissibility, adjust the width, depth and shape of the vibration isolation groove, and re-conduct simulation analysis; according to the simulation results after each parameter adjustment, conduct multiple rounds of iterations to continuously optimize the design parameters. After each round of iteration, re-conduct cost-benefit analysis to ensure that the optimized solution not only has good vibration isolation effect but also is economically feasible, and determine the final design solution.

[0088] Step 5. Report generation and application: Organize the analysis results in step 4 into a report format and provide it to the project design and management personnel for reference. The report content includes but is not limited to quantitative analysis of vibration isolation effects, recommended optimization points for vibration isolation trench design, and cost estimation. Finally, the report is used to guide the actual vibration isolation trench construction and design adjustments.

[0089] The present invention optimizes the design of vibration isolation trenches through scientific methods and advanced technical means. It not only significantly improves the vibration isolation effect, but also greatly reduces the construction cost, improves the design efficiency, enhances the project safety, and provides a scientific basis for the sustainable development of the project. These beneficial effects have been fully verified in practical applications and have high promotion value and application prospects.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration isolation trench effect analysis method based on BIM technology, characterized in that: The following steps are involved: Step 1: Build a BIM model of the project: Based on the project's geographic information, building structure information, and environmental data, a detailed BIM model of the project is built. The model includes the building's 3D geometry, soil type, groundwater level, and potential vibration sources. Step 2: Definition of vibration isolation trench design parameters: Define the vibration isolation trench design parameters based on the geological conditions of the project area, the structural characteristics of the building and the characteristics of the vibration source. The design parameters include but are not limited to the width, depth and shape of the vibration isolation trench; Step 3: Vibration isolation simulation analysis: Using the BIM model and combining it with the principle of mechanical vibration, simulate the vibration isolation effect of the vibration isolation trench under different design parameters. During the analysis, consider the influence of multiple factors, including the nature of the soil, the physical characteristics of the vibration isolation trench itself, and the frequency distribution of the vibration source; Step 4: Result evaluation and optimization: Based on the results of the vibration isolation simulation analysis, the effect of the vibration isolation trench is evaluated. The evaluation criteria include the vibration reduction amplitude and the cost-benefit analysis of the vibration isolation trench. The optimal vibration isolation trench design solution is found through repeated iterations of design parameters. Step 5. Report generation and application: Organize the analysis results in step 4 into a report format and provide it to the project design and management personnel for reference. The report content includes but is not limited to quantitative analysis of vibration isolation effects, recommended optimization points for vibration isolation trench design, and cost estimation. Finally, the report is used to guide the actual vibration isolation trench construction and design adjustments.

2. According to the BIM technology-based vibration isolation trench effect analysis method of claim 1, it is characterized by: The specific steps for constructing the project BIM model in step 1 are as follows: Step 11: Collect basic project information: Project geographic information: determine the longitude and latitude coordinates of the project, understand the terrain characteristics of the project location through topographic maps and elevation data, collect information on buildings, roads, and plants around the project, and ensure that the model is consistent with the actual environment; Building structure information: obtain detailed design drawings of the project's plan, elevation, and section; record the building's structural type, as well as the size and material of its main components; Environmental data: Understand the soil type of the project site through geological survey reports; obtain local groundwater level data; collect climate data for the project area; identify potential vibration sources around and within the project; Step 12. Choose the right BIM software: Choose the right BIM software based on the complexity and requirements of the project; Step 13: Establish a geographic model: Import the project topographic map in step 11 into the BIM software to generate a terrain model of the project; import the elevation data of the project location; import surrounding buildings, roads, and vegetation environment objects into the model to form a complete geographic environment model; at the same time, according to the geological survey report, establish a three-dimensional model of different soil layers, mark the boundaries and soil characteristics of each soil layer, and import the groundwater level data into the model to indicate the distribution and height of the groundwater level; Step 14: Build a building model: Import the floor plan of the project in step 11 into the BIM software, generate the floor layout of the building, import the elevation and section drawings, build a three-dimensional geometric model of the building, and model each structural component in detail based on the structural information; Step 15, import vibration source information: first determine the vibration source locations inside the project and outside the project; then, based on the characteristics of the vibration source, record its vibration frequency distribution, record the vibration intensity of the vibration source, including the maximum vibration amplitude and the average vibration amplitude, and simulate the propagation path of the vibration from the source to the building; Step 16: Comprehensive modeling: Integrate the geographic model, building model and vibration source information model to form a complete project BIM model; then verify the BIM model, specifically perform geometric verification, attribute verification and logical verification; Step 17: Optimize and adjust the model: Optimize and adjust the model according to actual needs to ensure that it can accurately reflect the actual situation of the project; during the project progress, update the data in the model in a timely manner to ensure the timeliness and accuracy of the model.

3. According to the BIM technology-based vibration isolation trench effect analysis method of claim 1, it is characterized by: The specific implementation content of the definition of the vibration isolation groove design parameters in step 2 is as follows: Preliminary setting of vibration isolation trench design parameters: Width: Calculate the wavelength of the vibration wave according to the frequency of the vibration source, and determine the preliminary width of the vibration isolation trench based on this; Depth: Determine the preliminary depth of the vibration isolation trench according to the foundation form and burial depth of the building, combined with the characteristics of the soil; The shape of the vibration isolation trench should be parallel to the propagation direction of the vibration wave and form an effective barrier between the vibration source and the sensitive area; Optimize design parameters: Width sensitivity: Use the BIM model to simulate the vibration isolation effects under different widths, depths and shapes, and analyze the impact of width, depth and shape on the vibration isolation effect; Comprehensive optimization: Combined with vibration isolation effect, cost, construction difficulty and other factors, the optimization tool of BIM software is used to conduct multi-objective optimization analysis. Based on the simulation results of the BIM model, the design parameters are continuously adjusted to find the optimal vibration isolation trench design solution; Confirmation and recording of design parameters: Submit the initially set vibration isolation trench design parameters to relevant experts for review to ensure the rationality and feasibility of the parameters; Record the final width, depth and shape, and the reasons for choosing the width, depth and shape; Generation and sharing of design documents: The finalized design parameters of the vibration isolation trench are organized into detailed design documents, which are then shared with the project's design team, construction team, and review team through the BIM platform to ensure transparency and consistency of information.

4. The vibration isolation trench effect analysis method based on BIM technology according to claim 1 is characterized in that: The specific implementation steps of the vibration isolation simulation analysis in step 3 are as follows: Step 31: Determine the vibration analysis software based on the project characteristics and configure the software’s computing environment to ensure that it can handle complex BIM models and vibration data; Step 32, importing the BIM model: exporting the constructed project BIM model into a format suitable for the vibration analysis software, importing the exported BIM model into the selected vibration analysis software, and performing necessary format conversion and data verification; Step 33, define material properties: define the material properties of each structural component according to the design drawings and material list of the building; define the properties of the vibration isolation trench material according to the design parameters of the vibration isolation trench; Define the material properties of each soil layer based on the geological survey report; Step 34, set boundary conditions and loading conditions: according to the actual situation of the project location, set the support and constraint conditions of the foundation, set the boundary conditions of the vibration isolation trench; according to the characteristics of the vibration source, set the loading conditions of the vibration source, including vibration frequency, amplitude, direction, and set the impact of environmental factors on vibration propagation, set wind load, and groundwater level loading conditions; Step 35, perform vibration simulation: according to the vibration frequency, set the appropriate time step, mesh the BIM model, ensure the rationality and calculation efficiency of the mesh, run the vibration simulation analysis according to the set boundary conditions and loading conditions, and record the vibration response data of key nodes during the simulation, including displacement, velocity, and acceleration; Step 36, analyze the simulation results: analyze the changes in vibration displacement, velocity and acceleration of various parts of the building before and after the vibration isolation trench is set up; calculate the frequency response function before and after the vibration isolation trench is set up to understand the vibration transfer characteristics at different frequencies; analyze the energy loss caused by the vibration isolation trench during the propagation of the vibration wave; analyze the distribution of vibration energy in the project area, and identify energy concentration areas and weak links; Step 37: Analysis of the impact of multiple factors Influence of soil properties: Analyze the influence of different soil layers on vibration propagation and vibration isolation effect; consider the damping characteristics of the soil and evaluate its contribution to the vibration isolation effect; Influence of the physical characteristics of the vibration isolation groove: Analyze the vibration isolation effect of different widths and depths to determine the optimal design size; analyze the vibration isolation effect of different shapes to determine the optimal shape design; Influence of vibration source frequency distribution: Analyze the impact of low-frequency vibration, specifically 5-30Hz on the building, and evaluate the low-frequency vibration isolation effect of the vibration isolation trench; analyze the impact of high-frequency vibration, specifically 30-100Hz on the building, and evaluate the high-frequency vibration isolation effect of the vibration isolation trench.

5. The vibration isolation trench effect analysis method based on BIM technology according to claim 1 is characterized in that: The specific implementation contents of the result evaluation and optimization of step 4 are as follows: Organize simulation analysis results: collect vibration response data of each key node in the simulation process in step 3, including displacement, velocity and acceleration, collect data on the transmissibility of vibration waves from the source to the building, and record the distribution of vibration energy in the project area; Evaluate the effectiveness of the vibration isolation trench: Vibration reduction amplitude assessment: Based on the simulation data, the vibration reduction amplitude of each key node before and after the vibration isolation trench is set up is calculated; Transmission rate assessment: Based on the simulation data, the transmission rate of the vibration wave from the source to the building is calculated, where the lower the transmission rate, the better the vibration isolation effect; Energy distribution assessment: Study the distribution of vibration energy in the project area; Benefit evaluation: Calculate the total cost of the vibration isolation trench, that is, the ratio of material cost + construction cost + maintenance cost to the vibration isolation effect, and evaluate its economic feasibility; Optimize design parameters: According to the evaluation results of vibration reduction amplitude and transmissibility, adjust the width, depth and shape of the vibration isolation groove and re-perform simulation analysis; Based on the simulation results after each parameter adjustment, multiple rounds of iterations are carried out to continuously optimize the design parameters. After each round of iteration, a cost-benefit analysis is re-conducted to ensure that the optimized solution not only has good vibration isolation effects but is also economically feasible, and the final design solution is determined.

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