Building seismic capacity calculation method based on localized anti-lethal model

Abstract

The invention relates to a building anti-seismic capacity calculation method based on a localized anti-lethal model, and the method comprises the following steps: S1, data information preparation and processing: collecting, sorting and preparing data related to the building anti-seismic capacity, and providing basic data support for subsequent steps; and S2, localization of the regional anti-lethality level model: localizing the global or international universal anti-lethality level model through field investigation and expert evaluation. According to the invention, the number of personnel death evaluated by using an anti-lethality level model is within a reference interval range pre-evaluated by expert experience and the like, which preliminarily shows that a localized model has certain reliability, and localized matrix values under all earthquake magnitudes are obviously smaller than non-localized matrix values; the higher the consistency of localization matrix evaluation and vulnerability evaluation results is, the more reliable the evaluation results are, the aspects of basic data dependence, calculation speed and precision, method applicability and the like are obviously improved, and good generalizability is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of building seismic capacity calculation, and in particular to a building seismic capacity calculation method based on a localized anti-lethal model. Background Art

[0002] At present, domestic and foreign researchers mainly use three methods to analyze the earthquake resistance of residential building structures. First, they will conduct on-site investigations and carefully analyze the possible problems of the buildings and the damage after the earthquake. Although this method can make a qualitative evaluation of the earthquake resistance of the house, such as giving good, average, poor, etc., it cannot give a quantitative result. In response to this situation, researchers will propose corresponding solutions based on the specific analysis results to improve the safety of the house.

[0003] However, this method has certain problems. Although it can make a qualitative evaluation of the house, the evaluation results are often not objective enough due to the subjectivity of the survey and the complexity of the data. This makes this method unable to be applied to more advanced analysis, such as casualty estimation.

[0004] The second method is the model shaking table test. This method makes a model of the actual house in a certain proportion, and then uses a shaking table test to apply different seismic waves to observe and study the damage of the model when it encounters an earthquake. Although this method can simulate the impact of earthquakes on houses, it also has some problems. First, the cost of making the model is high, and the accuracy of the model is difficult to guarantee. In addition, this method requires a small number of test samples and cannot fully reflect the actual situation.

[0005] The third method is finite element analysis. This method models the house physically and observes the stress distribution of the house under different earthquakes by inputting seismic waves. This method can find the stress concentration points of the house, thereby proving the feasibility of the selected reinforcement plan. However, this method requires the use of special instruments and equipment, which is costly. Moreover, due to the complexity of finite element analysis, the professional ability of the analyst is also required to be high.

[0006] A comprehensive comparison of these three methods shows that the first method is not objective enough in analysis, and the result is a qualitative evaluation that cannot be applied to casualty estimation and other calculations. The second and third methods require special instruments and equipment, which are costly and require a small number of test samples.

[0007] Therefore, those skilled in the art have proposed a method for calculating the seismic capacity of buildings based on a localized anti-lethal model. Summary of the invention

[0008] In view of the above problems existing in the prior art, the main purpose of the present invention is to provide a method for calculating the seismic capacity of buildings based on a localized anti-lethal model.

[0009] The technical solution of the present invention is as follows: a method for calculating the seismic capacity of a building based on a localized anti-lethal model, comprising the following steps:

[0010] S1. Data preparation and processing: Its purpose is to collect, organize and prepare data related to the earthquake resistance of buildings to provide basic data support for subsequent steps;

[0011] S2. Localization of regional lethality resistance level models: Through field surveys and expert evaluations, localize the global or internationally used lethality resistance level models to adapt to the building seismic capacity requirements of specific regions;

[0012] S3. Calculation of building anti-lethality level: Calculate the building's anti-lethality level based on building characteristics and weights of influencing factors, including the matching of building seismic resistance and intensity level;

[0013] S4. Localization of building lethality resistance level: Based on the characteristics and weight parameters of each type of building, the calculation method of building lethality resistance level is localized to more accurately evaluate the earthquake resistance capacity of the building;

[0014] S5. Regional anti-lethal level model evaluation: The accuracy and applicability of the regional anti-lethal level model are evaluated through methods such as the analytic hierarchy process to ensure that the model results are consistent with the actual situation;

[0015] S6. Distribution of anti-lethal levels: Classify buildings according to their anti-lethal levels, and count and analyze the distribution of buildings at different levels to assess the overall safety of the buildings;

[0016] S7. Distribution of lethality: Based on the earthquake resistance of buildings and earthquake intensity, assess the distribution of lethality in the region, count and analyze the distribution of fatalities, and understand the potential earthquake disaster risk;

[0017] S8. Result evaluation and analysis: Based on the comparison between the anti-lethal level and the lethality level of the building, the safety of the building is evaluated, the influencing factors are analyzed, suggestions and measures to improve the anti-lethal level of the building are proposed, and finally an anti-lethal level assessment report is generated.

[0018] As a preferred implementation, step S1 can be refined as follows:

[0019] S11. Collect data related to building earthquake resistance, including building structure, materials, geological conditions, etc.;

[0020] S12. Organize and clean data, including removing redundant data, processing missing values ​​and outliers, etc.;

[0021] S13, performing data preprocessing, such as data standardization and normalization, to facilitate subsequent calculation and analysis;

[0022] S14, perform spatial correlation analysis to correlate building data with geographic information system data, such as earthquake intensity data, geological and geomorphological data, etc.;

[0023] S15. Establish a database or data table to store the organized data for subsequent model calculation and analysis.

[0024] Through the above-mentioned technical means, necessary data are collected and organized, including building feature sample data and basic data, etc., to prepare for subsequent analysis and model building. By collecting and organizing necessary data, specific and detailed data information and basic conditions can be provided to provide a basis for subsequent analysis and decision-making.

[0025] As a preferred implementation, step S2 can be subdivided into:

[0026] S21. Conduct field investigations in the target area to understand the geological conditions, seismic activity, building types and structural characteristics of the area;

[0027] S22. Collect historical earthquake data, earthquake disaster records, earthquake intensity data, etc. in relevant areas;

[0028] S23. Invite earthquake engineering experts to conduct assessment and judgment based on the field survey and collected data to determine the anti-lethal level model applicable to the target area;

[0029] S24. Based on expert evaluation and regional characteristics, localize and modify the global or internationally used lethality resistance level model to ensure that the model can better meet the building seismic requirements of the target area;

[0030] S25. Verify the accuracy and applicability of the localized model based on historical earthquake events and measured data;

[0031] S26. Regularly update and improve the anti-lethal level model based on new earthquake research results and measured data to ensure its scientificity and timeliness.

[0032] Through the above-mentioned technical means, based on the field investigation of building characteristics, historical earthquake case verification, expert evaluation, etc., the value range of the building's anti-lethal level is determined, and a calculation model for the building's anti-lethal level is constructed. Through the localized anti-lethal level calculation model, a more accurate assessment and prediction of the seismic capacity of various types of buildings can be made, which is conducive to guiding the decoration and reinforcement of buildings.

[0033] As a preferred implementation, step S3 can be refined as follows:

[0034] S31. Extract relevant features of the building from the data, including building structure type, main component materials, foundation type, etc.;

[0035] S32. Based on the theory and practice of earthquake engineering, determine the key factors that affect the earthquake resistance of buildings, such as floor height, structural stiffness, and distribution of earthquake-resistant walls;

[0036] S33. According to the importance and impact of the building features, weights are assigned to each influencing factor for subsequent calculation of the anti-lethality level;

[0037] S34. Calculate the lethality resistance level of each building based on building characteristics and weight distribution, usually using quantitative analysis methods such as probability model, tolerance displacement model, etc.;

[0038] S35. Match the building's anti-lethality level with the corresponding earthquake intensity to assess the building's safety under specific earthquake events;

[0039] S36. Present the calculation results in a visual form, such as generating an anti-lethal level rating chart or a building safety assessment report.

[0040] Through the above-mentioned technical means, the specific anti-lethal level of different buildings can be calculated according to their specific characteristics and influencing factors. By evaluating and calculating the anti-lethal level of buildings, specific data basis can be provided for subsequent analysis and decision-making, which is conducive to effectively reducing the losses of buildings in earthquake disasters.

[0041] As a preferred implementation, step S4 can be refined as follows:

[0042] S41. By determining the weights of the factors affecting the anti-lethality level of different types of buildings, the influence of each factor on the earthquake resistance of the building can be quantified, and the anti-lethality level of the building can be evaluated more accurately;

[0043] S42. Based on field investigations and historical earthquake case calculations, determine the lethal resistance level ranges of various types of buildings, establish a classification method to divide different types of buildings into corresponding lethal resistance level ranges, and further refine the earthquake resistance assessment of buildings;

[0044] S43. By combining the anti-lethal level interval of the building and the weight of the influencing factors, the actual anti-lethal level distribution of the building is calculated, so that the earthquake resistance of the building can be evaluated in a quantitative way, and the distribution of different buildings in different anti-lethal level intervals can be obtained;

[0045] S44. Calculate the regional anti-lethal level by combining the number of buildings in the region and the distribution of anti-lethal levels of each building. This will help understand the level of earthquake resistance in the entire region and provide an important reference for further earthquake resistance preparation and planning.

[0046] S45. Classify the lethality resistance level into different levels to more intuitively display the distribution of buildings within different lethality resistance levels. This will help decision makers understand the overall earthquake resistance level of buildings and formulate corresponding response strategies for different levels.

[0047] S46. Through the above calculations and analysis, the actual anti-lethal level matrix of the building is obtained and localized, so that the nationwide earthquake resistance data can be converted into earthquake resistance capacity assessment data for specific regions, providing a scientific basis for regional earthquake preparedness and disaster prevention planning.

[0048] Through the above-mentioned technical means, the anti-lethal level of buildings is calculated and localized according to the specific characteristics and influencing factors of each type of buildings. Through the localization of the anti-lethal level of buildings, we can better understand the seismic performance and seismic resistance of various types of buildings, and provide a decision-making basis for subsequent reinforcement and renovation.

[0049] As a preferred implementation, step S5 can be refined as follows:

[0050] S51. The weights of different factors affecting the regional anti-lethality level were calculated by applying the analytic hierarchy process (AHP). Different factors were divided into different levels according to their importance and compared in pairs. The weights were calculated by the algorithm to ensure that the weights of different factors were logical and consistent in the overall model.

[0051] S52. Based on the building characteristic data obtained from the field survey and other relevant survey data, determine the range of anti-lethal levels of different types of buildings, and calculate the 95% confidence interval by using statistical methods to provide a reliability estimate of the anti-lethal level;

[0052] S53. The regional anti-lethal level is calculated by summarizing the area share of different types of buildings and the distribution of anti-lethal levels of each type of building, taking into account the number of buildings and the distribution of seismic capacity to form a comprehensive assessment of the regional anti-lethal level.

[0053] Through the above technical means, the AHP hierarchical analysis method is used to evaluate the effectiveness and accuracy of the regional anti-lethal level model. By evaluating and comparing the anti-lethal level models of different regions, the problems and improvement space in the model can be discovered, which is conducive to improving the reliability and practicality of the model.

[0054] As a preferred implementation, step S6 can be refined as follows:

[0055] S61. The anti-lethality level is divided into 11 levels, with each level interval being 10%, so as to classify and compare different anti-lethality levels;

[0056] S62. Allocate the building to a corresponding level of lethality resistance based on the building's level of lethality resistance, determined by comparing the building's level of lethality resistance with the limits of each level of the levels;

[0057] S63. Count and count the buildings in each level of anti-lethality to obtain the number of buildings in each level;

[0058] S64. Display the number of buildings at each level of lethality resistance in a graphical form, such as a bar chart or pie chart, to clearly show the distribution of different levels of lethality resistance. This will provide a more intuitive understanding of the safety distribution of buildings.

[0059] Through the above-mentioned technical means, the anti-lethal level of the building is divided into grades, which is convenient for statistics and comparison, and for evaluating the earthquake resistance and safety of the building. Through the distribution map of the anti-lethal level of the building, we can understand the earthquake resistance and safety of the building more intuitively and specifically, which is conducive to further improving the earthquake-resistant design and construction quality of the building.

[0060] As a preferred implementation, step S7 can be refined as follows:

[0061] S71. Based on the lethality resistance level of buildings and the earthquake intensity, the lethality level of each region can be calculated and determined by comparing the relationship between the lethality resistance level of buildings and the earthquake intensity;

[0062] S72. Evaluate the distribution of fatalities in each region. Based on the lethality level and population size of each region, the distribution of fatalities in each region can be evaluated by comparing the lethality level with the population size.

[0063] S73. Count the number of deaths in each region and the proportion of the total population. By counting the number of deaths and the total population in each region, the proportion of the number of deaths in each region to the total population can be calculated, which can be used to assess the risk level of each region;

[0064] S74. Draw a mortality distribution map and present the mortality level and population ratio of each region in a graphical form, such as a map or a bar chart, so as to clearly show the distribution of mortality levels in different regions and provide a more intuitive understanding of the risk situation in different regions.

[0065] Through the above-mentioned technical means: according to the seismic resistance of buildings and earthquake intensity, the distribution of deaths in various regions is evaluated to further understand the impact of earthquakes on regional populations. Through the mortality level distribution map, the mortality and proportion of earthquakes in different regions can be seen, so as to more intuitively understand the impact of earthquakes on the population and provide reference and basis for earthquake disaster relief and post-disaster reconstruction.

[0066] As a preferred implementation, step S8 can be refined as follows:

[0067] S81. Compare the anti-lethal level of the building with the lethal level to assess the safety of the building. By comparing the anti-lethal level of the building with the lethal level of the corresponding area, the safety of the building can be assessed. If the anti-lethal level of the building is higher than the lethal level of the corresponding area, it means that the building has a higher earthquake resistance and is relatively safe; conversely, if the anti-lethal level of the building is lower than the lethal level of the corresponding area, it means that the earthquake resistance of the building is weak and there is a higher risk.

[0068] S82. Analyze the relationship between the anti-lethal level of a building and the influencing factors, and find out the main factors that affect the safety of the building. By analyzing the anti-lethal level of a building and related influencing factors, it is possible to determine which factors play a key role in the earthquake resistance of the building. For example, factors such as the structural type, construction age, and foundation type of a building may all have an impact on the anti-lethal level. By deeply analyzing the relationship between these factors, the main factors that affect the safety of the building can be found, providing a basis for improving the earthquake resistance of the building.

[0069] S83. Propose suggestions and measures to improve the building's anti-lethal level. Based on the results of the building's anti-lethal level analysis, corresponding improvement suggestions and measures can be proposed to enhance the building's earthquake resistance. These suggestions and measures may include but are not limited to strengthening weak structures, improving construction technology, using better materials, etc., aiming to improve the overall earthquake resistance of the building and reduce earthquake risks;

[0070] S84. Output anti-lethality level assessment report. Through analysis and evaluation, an anti-lethality level assessment report is generated. The report includes the anti-lethality level assessment results of the building, analysis of influencing factors, improvement suggestions and measures, etc. This report can serve as an important reference for decision makers, planners, architects and other relevant personnel when formulating disaster prevention and mitigation policies, planning and designing buildings.

[0071] Through the above-mentioned technical means: by comparing and evaluating the anti-lethality level of buildings with the lethality level, analyzing the main factors affecting the safety of buildings, and proposing suggestions and measures to improve the anti-lethality level of buildings, through result evaluation and analysis, the main factors affecting the safety of buildings can be discovered, and suggestions and measures to improve the anti-lethality level of buildings can be proposed. At the same time, it can also provide reference and basis for earthquake disaster prevention and mitigation and safety construction, thereby improving the ability to respond to earthquake disasters.

[0072] Compared with the prior art, the advantages and positive effects of the present invention are:

[0073] The number of deaths assessed by the anti-lethal level model in the present invention is within the reference interval of pre-assessment by expert experience, etc., which preliminarily shows that the localized model has a certain reliability. The localized matrix value at each magnitude is significantly smaller than the non-localized matrix value, indicating that the higher the consistency between the localized matrix assessment and the vulnerability assessment result, the more reliable the assessment result is. It has been significantly improved in terms of basic data dependence, calculation speed and accuracy, and method applicability, and has good generalizability. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 is a flow chart of the overall method of the present invention;

[0075] Figure 2 is a flow chart of step S1 of the present invention;

[0076] Figure 3 is a flow chart of step S2 of the present invention;

[0077] Figure 4 is a flow chart of step S3 of the present invention;

[0078] Figure 5 is a flow chart of step S4 of the present invention;

[0079] Figure 6 is a flow chart of step S5 of the present invention;

[0080] Figure 7 is a flow chart of step S6 of the present invention;

[0081] Figure 8 is a flow chart of step S7 of the present invention;

[0082] Fig. 9 It is a flow chart of step S8 of the present invention. DETAILED DESCRIPTION

[0083] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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.

[0084] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0085] Example

[0086] like Figure 1-Figure 9 As shown, the present invention provides a method for calculating the seismic capacity of a building based on a localized anti-lethal model, comprising the following steps:

[0087] S1. Data preparation and processing: Its purpose is to collect, organize and prepare data related to the earthquake resistance of buildings to provide basic data support for subsequent steps;

[0088] S2. Localization of regional lethality resistance level models: Through field surveys and expert evaluations, localize the global or internationally used lethality resistance level models to adapt to the building seismic capacity requirements of specific regions;

[0089] S3. Calculation of building anti-lethality level: Calculate the building's anti-lethality level based on building characteristics and weights of influencing factors, including the matching of building seismic resistance and intensity level;

[0090] S4. Localization of building lethality resistance level: Based on the characteristics and weight parameters of each type of building, the calculation method of building lethality resistance level is localized to more accurately evaluate the earthquake resistance capacity of the building;

[0091] S5. Regional anti-lethal level model evaluation: The accuracy and applicability of the regional anti-lethal level model are evaluated through methods such as the analytic hierarchy process to ensure that the model results are consistent with the actual situation;

[0092] S6. Distribution of anti-lethal levels: Classify buildings according to their anti-lethal levels, and count and analyze the distribution of buildings at different levels to assess the overall safety of the buildings;

[0093] S7. Distribution of lethality: Based on the earthquake resistance of buildings and earthquake intensity, assess the distribution of lethality in the region, count and analyze the distribution of fatalities, and understand the potential earthquake disaster risk;

[0094] S8. Result evaluation and analysis: Based on the comparison between the anti-lethal level and the lethal level of the building, the safety of the building is evaluated, the influencing factors are analyzed, suggestions and measures to improve the anti-lethal level of the building are proposed, and finally an anti-lethal level evaluation report is generated;

[0095] The step S1 can be refined as follows:

[0096] S11. Collect data related to building earthquake resistance, including building structure, materials, geological conditions, etc.;

[0097] S12. Organize and clean data, including removing redundant data, processing missing values ​​and outliers, etc.;

[0098] S13, performing data preprocessing, such as data standardization and normalization, to facilitate subsequent calculation and analysis;

[0099] S14, perform spatial correlation analysis to correlate building data with geographic information system data, such as earthquake intensity data, geological and geomorphological data, etc.;

[0100] S15. Establish a database or data table to store the sorted data for subsequent model calculation and analysis;

[0101] To sum up: Collecting and organizing necessary data, including building feature sample data and basic data, etc., prepares for subsequent analysis and model building. By collecting and organizing necessary data, specific and detailed data information and basic conditions can be provided to provide a basis for subsequent analysis and decision-making.

[0102] The step S2 can be subdivided into:

[0103] S21. Conduct field investigations in the target area to understand the geological conditions, seismic activity, building types and structural characteristics of the area;

[0104] S22. Collect historical earthquake data, earthquake disaster records, earthquake intensity data, etc. in relevant areas;

[0105] S23. Invite earthquake engineering experts to conduct assessment and judgment based on the field survey and collected data to determine the anti-lethal level model applicable to the target area;

[0106] S24. Based on expert evaluation and regional characteristics, localize and modify the global or internationally used lethality resistance level model to ensure that the model can better meet the building seismic requirements of the target area;

[0107] S25. Verify the accuracy and applicability of the localized model based on historical earthquake events and measured data;

[0108] S26. Regularly update and improve the anti-lethal level model based on new earthquake research results and measured data to ensure its scientificity and timeliness;

[0109] To sum up: Based on the field investigation of building characteristics, historical earthquake case verification, expert evaluation, etc., the value range of the building's anti-lethal level is determined, and a calculation model for the building's anti-lethal level is constructed. Through the localized anti-lethal level calculation model, a more accurate assessment and prediction of the seismic capacity of various types of buildings can be made, which is conducive to guiding the decoration and reinforcement of buildings.

[0110] The step S3 can be refined as follows:

[0111] S31. Extract relevant features of the building from the data, including building structure type, main component materials, foundation type, etc.;

[0112] S32. Based on the theory and practice of earthquake engineering, determine the key factors that affect the earthquake resistance of buildings, such as floor height, structural stiffness, and distribution of earthquake-resistant walls;

[0113] S33. According to the importance and impact of the building features, weights are assigned to each influencing factor for subsequent calculation of the anti-lethality level;

[0114] S34. Calculate the lethality resistance level of each building based on building characteristics and weight distribution, usually using quantitative analysis methods such as probability model, tolerance displacement model, etc.;

[0115] In this step, the following formula can be used:

[0116]

[0117] Among them, ATL actual ATL actual is the actual anti-lethal level value of a certain type of building;

[0118] ATL max ATL max It is the upper limit of the range of anti-lethal levels for a certain type of building;

[0119] ATL min ATL min It is the minimum lower limit of the anti-lethal level range of a certain type of building;

[0120] n is the type of influencing factors of the lethality level of a certain type of building, which is selected according to the actual situation of different types of buildings. WW is the weight ratio coefficient of the influencing factors of the i-th type in the building, which is selected according to the actual situation of the building. V i V i is the weight ratio coefficient of the j-th building structure among the i-th type of influencing factors in the building, and is selected based on the actual situation of the building.

[0121] S35. Match the building's anti-lethality level with the corresponding earthquake intensity to assess the building's safety under specific earthquake events;

[0122] S36. presenting the calculation results in a visual form, such as generating an anti-lethal level rating chart or a building safety assessment report;

[0123] To sum up: according to the specific characteristics and influencing factors of different buildings, their specific anti-lethal level is calculated. By evaluating and calculating the anti-lethal level of buildings, specific data basis can be provided for subsequent analysis and decision-making, which is conducive to effectively reducing the losses of buildings in earthquake disasters.

[0124] The step S4 can be refined as follows:

[0125] S41. By determining the weights of the factors affecting the anti-lethality level of different types of buildings, the influence of each factor on the earthquake resistance of the building can be quantified, and the anti-lethality level of the building can be evaluated more accurately;

[0126] S42. Based on field investigations and historical earthquake case calculations, determine the lethal resistance level ranges of various types of buildings, establish a classification method to divide different types of buildings into corresponding lethal resistance level ranges, and further refine the earthquake resistance assessment of buildings;

[0127] S43. By combining the anti-lethal level interval of the building and the weight of the influencing factors, the actual anti-lethal level distribution of the building is calculated, so that the earthquake resistance of the building can be evaluated in a quantitative way, and the distribution of different buildings in different anti-lethal level intervals can be obtained;

[0128] S44. Calculate the regional anti-lethal level by combining the number of buildings in the region and the distribution of anti-lethal levels of each building. This will help understand the level of earthquake resistance in the entire region and provide an important reference for further earthquake resistance preparation and planning.

[0129] In this step, the following formula can be used for calculation:

[0130]

[0131] in, is the adjustment coefficient, i is the regional influencing factor, including 3 types, W i is the weight coefficient of the i-th influencing factor, U ij U ij is the weight coefficient of the jth influencing factor among the i-th regional influencing factors, V jk V jk为 The weight coefficient of the kth influencing factor among the jth influencing factors.

[0132] S45. Classify the lethality resistance level into different levels to more intuitively display the distribution of buildings within different lethality resistance levels. This will help decision makers understand the overall earthquake resistance level of buildings and formulate corresponding response strategies for different levels.

[0133] S46. Through the above calculations and analysis, the actual anti-lethal level matrix of the building is obtained and localized, so that the earthquake resistance data across the country can be converted into earthquake resistance capacity assessment data for specific regions, providing a scientific basis for regional earthquake preparedness and disaster prevention planning;

[0134] In this step, the obtained data can be tabulated as shown in the following table:

[0135]

[0136]

[0137] In summary: According to the specific characteristics and influencing factors of each type of building, the anti-lethal level of the building is calculated and localized. Through the localization of the anti-lethal level of the building, we can better understand the seismic performance and seismic resistance of various types of buildings, and provide a decision-making basis for subsequent reinforcement and renovation.

[0138] The step S5 can be refined as follows:

[0139] S51. The weights of different factors affecting the regional anti-lethality level were calculated by applying the analytic hierarchy process (AHP). Different factors were divided into different levels according to their importance and compared in pairs. The weights were calculated by the algorithm to ensure that the weights of different factors were logical and consistent in the overall model.

[0140] Using the AHP hierarchical analysis method, a judgment matrix was constructed and the weights of each factor were calculated after the experts scored. The consistency test was met: the maximum characteristic root λmax=7.138, the average randomness CI=0.023, and the consistency CR=0.0708 (when CR<0.1 or λmax=n, CI=0, the weights were considered to have satisfactory consistency). The weights of the influencing factors of each structural building and the weight coefficient of its construction type can be determined. The weights of the influencing factors of the building's anti-lethal level are determined as shown in the following chart:

[0141]

[0142]

[0143] S52. Based on the building characteristic data obtained from the field survey and other relevant survey data, determine the range of anti-lethal levels of different types of buildings, and calculate the 95% confidence interval by using statistical methods to provide a reliability estimate of the anti-lethal level;

[0144] S53. Calculate the regional lethality resistance level by summarizing the area share of different types of buildings and the distribution of lethality resistance levels of each type of building, taking into account the number of buildings and the distribution of seismic capacity to form a comprehensive assessment of the regional lethality resistance level;

[0145] In summary: The effectiveness and accuracy of the regional anti-lethal level model were evaluated through the AHP hierarchical analysis method. By evaluating and comparing the anti-lethal level models of different regions, the problems and improvement space in the model can be discovered, which is conducive to improving the reliability and practicality of the model.

[0146] The step S6 can be refined as follows:

[0147] S61. The anti-lethality level is divided into 11 levels, with each level interval being 10%, so as to classify and compare different anti-lethality levels;

[0148] S62. Allocate the building to a corresponding level of lethality resistance based on the building's level of lethality resistance, determined by comparing the building's level of lethality resistance with the limits of each level of the levels;

[0149] S63. Count and count the buildings in each level of anti-lethality to obtain the number of buildings in each level;

[0150] S64. Display the number of buildings at each level of lethality resistance in a graphical form, such as a bar chart or pie chart, to clearly show the distribution of different levels of lethality resistance, so that the safety distribution of buildings can be more intuitively understood;

[0151] To sum up: dividing the building's anti-lethal level into grades is convenient for statistics and comparison, and for evaluating the building's earthquake resistance and safety. Through the building's anti-lethal level distribution map, we can understand the building's earthquake resistance and safety more intuitively and specifically, which is conducive to further improving the building's earthquake-resistant design and construction quality.

[0152] The step S7 can be broken down into:

[0153] S71. Based on the lethality resistance level of buildings and the earthquake intensity, the lethality level of each region can be calculated and determined by comparing the relationship between the lethality resistance level of buildings and the earthquake intensity;

[0154] S72. Evaluate the distribution of fatalities in each region. Based on the lethality level and population size of each region, the distribution of fatalities in each region can be evaluated by comparing the lethality level with the population size.

[0155] In this step, the calculation formula can be used:

[0156]

[0157] ATL actual is the actual anti-lethal level value of a certain type of building;

[0158] ATL max It is the upper limit of the range of anti-lethal levels for a certain type of building;

[0159] ATL min It is the minimum lower limit of the anti-lethal level range of a certain type of building;

[0160] n is the type of factors affecting the lethality level of a certain type of building, which is selected according to the actual conditions of different types of buildings;

[0161] W is the weight ratio coefficient of the i-th type of influencing factors in the building, which is selected based on the actual situation of the building;

[0162] V i is the weight ratio coefficient of the j-th building structure among the i-th type of influencing factors in the building, and is selected based on the actual situation of the building.

[0163] S73. Count the number of deaths in each region and the proportion of the total population. By counting the number of deaths and the total population in each region, the proportion of the number of deaths in each region to the total population can be calculated, which can be used to assess the risk level of each region;

[0164] In this step, the calculation formula can be used:

[0165]

[0166] i is the level of anti-lethality, ranging from 0 to 1, with a total of 11 levels;

[0167] j is the intensity, from VI to XI, with 6 levels in total;

[0168] Lij is the death rate of personnel in the area with the level of resistance to lethality i and the intensity j;

[0169] Pij is the population in the area with resistance level i and severity j;

[0170] Tab is the correction factor of the earthquake occurrence time.

[0171] S74. Draw a mortality distribution map and present the mortality level and population ratio of each region in a graphical form, such as a map or a bar chart, so as to clearly show the distribution of mortality levels in different regions and provide a more intuitive understanding of the risk situation in different regions.

[0172] To sum up: Based on the seismic resistance of buildings and the intensity of earthquakes, the distribution of deaths in various regions is evaluated to further understand the impact of earthquakes on regional populations. Through the mortality level distribution map, the mortality and proportion of earthquakes in different regions can be seen, so as to more intuitively understand the impact of earthquakes on the population and provide reference and basis for earthquake disaster relief and post-disaster reconstruction.

[0173] The step S8 can be refined as follows:

[0174] S81. Compare the anti-lethal level of the building with the lethal level to assess the safety of the building. By comparing the anti-lethal level of the building with the lethal level of the corresponding area, the safety of the building can be assessed. If the anti-lethal level of the building is higher than the lethal level of the corresponding area, it means that the building has a higher earthquake resistance and is relatively safe; conversely, if the anti-lethal level of the building is lower than the lethal level of the corresponding area, it means that the earthquake resistance of the building is weak and there is a higher risk.

[0175] S82. Analyze the relationship between the anti-lethal level of a building and the influencing factors, and find out the main factors that affect the safety of the building. By analyzing the anti-lethal level of a building and related influencing factors, it is possible to determine which factors play a key role in the earthquake resistance of the building. For example, factors such as the structural type, construction age, and foundation type of a building may all have an impact on the anti-lethal level. By deeply analyzing the relationship between these factors, the main factors that affect the safety of the building can be found, providing a basis for improving the earthquake resistance of the building.

[0176] S83. Propose suggestions and measures to improve the building's anti-lethal level. Based on the results of the building's anti-lethal level analysis, corresponding improvement suggestions and measures can be proposed to enhance the building's earthquake resistance. These suggestions and measures may include but are not limited to strengthening weak structures, improving construction technology, using better materials, etc., aiming to improve the overall earthquake resistance of the building and reduce earthquake risks;

[0177] S84. Output the anti-lethality assessment report. Through analysis and assessment, an anti-lethality assessment report is generated. The report includes the anti-lethality assessment results of the building, analysis of influencing factors, improvement suggestions and measures, etc. This report can serve as an important reference for decision makers, planners, architects and other relevant personnel when formulating disaster prevention and mitigation policies, planning and designing buildings.

[0178] To sum up: by comparing and evaluating the anti-lethality level of buildings with the lethality level, analyzing the main factors affecting the safety of buildings, and proposing suggestions and measures to improve the anti-lethality level of buildings, through result evaluation and analysis, the main factors affecting the safety of buildings can be discovered, and suggestions and measures to improve the anti-lethality level of buildings can be proposed. At the same time, it can also provide reference and basis for earthquake disaster prevention and mitigation and safety construction, thereby improving the ability to respond to earthquake disasters.

[0179] In addition, the applicant provided the following table through investigation and search:

[0180] This table contains the basic data and related descriptions required for implementation:

[0181]

[0182]

[0183] This table assigns ranges for the level of anti-lethality for various types of buildings:

[0184]

[0185]

[0186] This table shows the weights of factors affecting the lethality resistance level of various types of buildings and their construction type weight coefficients:

[0187]

[0188]

[0189]

[0190]

[0191] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for calculating the seismic capacity of buildings based on a localized anti-lethal model, characterized in that: The following steps are involved: S1. Data preparation and processing: Its purpose is to collect, organize and prepare data related to the earthquake resistance of buildings to provide basic data support for subsequent steps; S2. Localization of regional lethality resistance level models: Through field surveys and expert evaluations, localize the global or internationally used lethality resistance level models to adapt to the building seismic capacity requirements of specific regions; S3. Calculation of building anti-lethality level: Calculate the building's anti-lethality level based on building characteristics and weights of influencing factors, including the matching of building seismic resistance and intensity level; S4. Localization of building lethality resistance level: Based on the characteristics and weight parameters of each type of building, the calculation method of building lethality resistance level is localized to more accurately evaluate the earthquake resistance capacity of the building; S5. Regional anti-lethal level model evaluation: The accuracy and applicability of the regional anti-lethal level model are evaluated through methods such as the analytic hierarchy process to ensure that the model results are consistent with the actual situation; S6. Distribution of anti-lethal levels: Classify buildings according to their anti-lethal levels, and count and analyze the distribution of buildings at different levels to assess the overall safety of the buildings; S7. Distribution of lethality: Based on the earthquake resistance of buildings and earthquake intensity, assess the distribution of lethality in the region, count and analyze the distribution of fatalities, and understand the potential earthquake disaster risk; S8. Result evaluation and analysis: Based on the comparison between the anti-lethal level and the lethality level of the building, the safety of the building is evaluated, the influencing factors are analyzed, suggestions and measures to improve the anti-lethal level of the building are proposed, and finally an anti-lethal level assessment report is generated.

2. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S1 can be refined as follows: S11. Collect data related to building earthquake resistance, including building structure, materials, geological conditions, etc.; S12. Organize and clean data, including removing redundant data, processing missing values ​​and outliers, etc.; S13, performing data preprocessing, such as data standardization and normalization, to facilitate subsequent calculation and analysis; S14, perform spatial correlation analysis to correlate building data with geographic information system data, such as earthquake intensity data, geological and geomorphological data, etc.; S15. Establish a database or data table to store the organized data for subsequent model calculation and analysis.

3. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S2 can be subdivided into: S21. Conduct field investigations in the target area to understand the geological conditions, seismic activity, building types and structural characteristics of the area; S22. Collect historical earthquake data, earthquake disaster records, earthquake intensity data, etc. in relevant areas; S23. Invite earthquake engineering experts to conduct assessment and judgment based on the field survey and collected data to determine the anti-lethal level model applicable to the target area; S24. Based on expert evaluation and regional characteristics, localize and modify the global or internationally used lethality resistance level model to ensure that the model can better meet the building seismic requirements of the target area; S25. Verify the accuracy and applicability of the localized model based on historical earthquake events and measured data; S26. Regularly update and improve the anti-lethal level model based on new earthquake research results and measured data to ensure its scientificity and timeliness.

4. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S3 can be refined as follows: S31. Extract relevant features of the building from the data, including building structure type, main component materials, foundation type, etc.; S32. Based on the theory and practice of earthquake engineering, determine the key factors that affect the earthquake resistance of buildings, such as floor height, structural stiffness, and distribution of earthquake-resistant walls; S33. Assign weights to each influencing factor based on the importance and impact of the building features for subsequent calculation of the anti-lethality level; S34. Calculate the lethality resistance level of each building based on building characteristics and weight distribution, usually using quantitative analysis methods such as probability model, tolerance displacement model, etc.; S35. Match the building's anti-lethality level with the corresponding earthquake intensity to assess the building's safety under specific earthquake events; S36. Present the calculation results in a visual form, such as generating an anti-lethal level rating chart or a building safety assessment report.

5. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S4 can be refined as follows: S41. By determining the weights of the factors affecting the anti-lethality level of different types of buildings, the influence of each factor on the earthquake resistance of the building can be quantified, and the anti-lethality level of the building can be evaluated more accurately; S42. Based on field investigations and historical earthquake case calculations, determine the lethal resistance level ranges of various types of buildings, establish a classification method to divide different types of buildings into corresponding lethal resistance level ranges, and further refine the earthquake resistance assessment of buildings; S43. By combining the anti-lethal level interval of the building and the weight of the influencing factors, the actual anti-lethal level distribution of the building is calculated, so that the earthquake resistance of the building can be evaluated in a quantitative way, and the distribution of different buildings in different anti-lethal level intervals can be obtained; S44. Calculate the regional anti-lethal level by combining the number of buildings in the region and the distribution of anti-lethal levels of each building. This will help understand the level of earthquake resistance in the entire region and provide an important reference for further earthquake resistance preparation and planning. S45. Classify the lethality resistance level into different levels to more intuitively display the distribution of buildings within different lethality resistance levels. This will help decision makers understand the overall earthquake resistance level of buildings and formulate corresponding response strategies for different levels. S46. Through the above calculations and analysis, the actual anti-lethal level matrix of the building is obtained and localized, so that the nationwide earthquake resistance data can be converted into earthquake resistance capacity assessment data for specific regions, providing a scientific basis for regional earthquake preparedness and disaster prevention planning.

6. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S5 can be refined as follows: S51. The weights of different factors affecting the regional anti-lethality level were calculated by applying the analytic hierarchy process (AHP). Different factors were divided into different levels according to their importance and compared in pairs. The weights were calculated by the algorithm to ensure that the weights of different factors were logical and consistent in the overall model. S52. Based on the building characteristic data obtained from the field survey and other relevant survey data, determine the range of anti-lethal levels of different types of buildings, and calculate the 95% confidence interval by using statistical methods to provide a reliability estimate of the anti-lethal level; S53. The regional anti-lethal level is calculated by summarizing the area share of different types of buildings and the distribution of anti-lethal levels of each type of building, taking into account the number of buildings and the distribution of seismic capacity to form a comprehensive assessment of the regional anti-lethal level.

7. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S6 can be refined as follows: S61. The anti-lethality level is divided into 11 levels, with each level interval being 10%, so as to classify and compare different anti-lethality levels; S62. Allocate the building to a corresponding level of lethality resistance based on the building's level of lethality resistance, determined by comparing the building's level of lethality resistance with the limits of each level of the levels; S63. Count and count the buildings in each level of anti-lethality to obtain the number of buildings in each level; S64. Display the number of buildings at each level of lethality resistance in the form of a chart, such as a bar chart or pie chart, to clearly show the distribution of different levels of lethality resistance, so that the safety distribution of buildings can be more intuitively understood.

8. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized by: The step S7 can be broken down into: S71. Based on the lethality resistance level of buildings and the earthquake intensity, the lethality level of each region can be calculated and determined by comparing the relationship between the lethality resistance level of buildings and the earthquake intensity; S72. Evaluate the distribution of fatalities in each region. Based on the lethality level and population size of each region, the distribution of fatalities in each region can be evaluated by comparing the lethality level with the population size. S73. Count the number of deaths in each region and the proportion of the total population. By counting the number of deaths and the total population in each region, the proportion of the number of deaths in each region to the total population can be calculated, which can be used to assess the risk level of each region; S74. Draw a mortality distribution map and present the mortality level and population ratio of each region in a graphical form, such as a map or a bar chart, so as to clearly show the distribution of mortality levels in different regions and provide a more intuitive understanding of the risk situation in different regions.

9. The method for calculating the seismic capacity of buildings based on the localized anti-lethal model according to claim 1 is characterized in that: The step S8 can be refined as follows: S81. Compare the anti-lethality level of the building with the lethality level to assess the safety of the building. By comparing the anti-lethality level of the building with the lethality level of the corresponding area, the safety of the building can be assessed. If the anti-lethality level of the building is higher than the lethality level of the corresponding area, it means that the building has a higher earthquake resistance and is relatively safe. On the contrary, if the building's anti-lethal level is lower than the corresponding area's lethal level, it means that the building's earthquake resistance is weak and there is a higher risk; S82. Analyze the relationship between the anti-lethal level of a building and the influencing factors, and find out the main factors that affect the safety of the building. By analyzing the anti-lethal level of a building and related influencing factors, it is possible to determine which factors play a key role in the earthquake resistance of the building. For example, factors such as the structural type, construction age, and foundation type of a building may all have an impact on the anti-lethal level. By deeply analyzing the relationship between these factors, the main factors that affect the safety of the building can be found, providing a basis for improving the earthquake resistance of the building. S83. Propose suggestions and measures to improve the building's anti-lethal level. Based on the results of the building's anti-lethal level analysis, corresponding improvement suggestions and measures can be proposed to enhance the building's earthquake resistance. These suggestions and measures may include but are not limited to strengthening weak structures, improving construction technology, using better materials, etc., aiming to improve the overall earthquake resistance of the building and reduce earthquake risks; S84. Output anti-lethality level assessment report. Through analysis and evaluation, an anti-lethality level assessment report is generated. The report includes the anti-lethality level assessment results of the building, analysis of influencing factors, improvement suggestions and measures, etc. This report can serve as an important reference for decision makers, planners, architects and other relevant personnel when formulating disaster prevention and mitigation policies, planning and designing buildings.

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