基于ANSYS的新型乡村抗震防灾适宜性规划模型分析

A Novel Suitability Planning Model for Rural Earthquake Disaster Prevention Based on ANSYS

摘要:

当前新型乡村抗震防灾适宜性规划分析中通常采用地质分区方法对勘测点进行分析，在分析过程中忽略了GIS空间的复杂性，且未对评价指标加权分析，导致抗震适宜性评价指标量化过程过于主观，存在计算结果与实际结果拟合度低的问题。据此，提出基于ANSYS的新型乡村抗震防灾适宜性规划模型分析。考虑到GIS的空间复杂性，采用ANSYS在GIS空间进行有限元结构场修正操作，结合Logistic非线性回归模型，对乡村土地抗震防灾适宜性规划中的二分类变量数据进行非线性回归分析。为了防止计算数值过于主观，采用组合熵系数模型对Logistic方程计算得来的评价指标加权，由此完成基于ANSYS的新型乡村抗震防灾适宜性规划模型分析。经过实例分析证明，所提方法求出的计算结果与实际结果拟合度较高，能成功完成评价指标的量化，对乡村抗震防灾适宜性规划分析更加客观。

Abstract:

At present, the analysis of the suitability of earthquake resistance and disaster prevention in new rural areas usually adopts the geological zoning method for the survey points. The complexity of the GIS space is neglected in the analysis process, and the weighted analysis of the evaluation indicators is not carried out, resulting in the low fitting degree of the calculated and actual results. Based on this, a new rural earthquake disaster prevention suitability planning model based on ANSYS is proposed. Considering the spatial complexity of GIS, the ANSYS is used to modify the finite-element structure field in GIS space. Combined with the logistic nonlinear regression model, a nonlinear regression analysis is carried out on the binary variable data in the earthquake disaster prevention suitability planning of rural land. To prevent the calculation value from being too subjective, the combined entropy coefficient model is used to weight the evaluation index calculated by the logistic equation, and the new rural earthquake disaster prevention suitability planning model based on ANSYS is completed. The case study proves that the calculated results obtained by the proposed method have a high degree of fitting with the actual results, can successfully complete the quantification of the evaluation indicators, and can objectively complete the rural earthquake disaster prevention suitability planning analysis.