基于GIS和BP神经网络耦合模型的建筑物震害预测
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摘要
采用COMGIS(组件式地理信息系统)技术开发了结合专业震害分析模型的建筑物震害评估系统,讨论了基于BP人工神经网络和GIS耦合模型的多层砖房震害预测.研究表明:水平成层土地震反应分析程序SHAKE91在VB菜单下可直接调用,实现地震动影响场计算的模块化;BP神经网络应用于建筑物震害预测中,能达到较理想的效果,其计算模型在系统菜单下可直接调用;系统的GIS空间分析功能可使震害预测结果与建筑物信息进行空间匹配,实现地震灾害损失快速评估.
Component Geography Information System(COMGIS) technique is used to develop the "seismic damage evaluation system for building"(SDESB) combined with BP Artificial Neural Network(ANN).The research indicates:1.SHAKE91(a commercial program to analyze the seismic effect of level stratified soil) can be called from the system menu and the earthquake influence field will be simulated.2.The relatively perfect results can be obtained when the BP ANN model is utilized to predict the seismic damage of building.3.By GIS technique,the BP ANN evaluated results can be perfectly matched spatially with the building information.Thus the critical seismic damage area can be identified.
Component Geography Information System(COMGIS) technique is used to develop the "seismic damage evaluation system for building"(SDESB) combined with BP Artificial Neural Network(ANN).The research indicates:1.SHAKE91(a commercial program to analyze the seismic effect of level stratified soil) can be called from the system menu and the earthquake influence field will be simulated.2.The relatively perfect results can be obtained when the BP ANN model is utilized to predict the seismic damage of building.3.By GIS technique,the BP ANN evaluated results can be perfectly matched spatially with the building information.Thus the critical seismic damage area can be identified.
引文
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[2]谭克坚,曹晖,毛沂.建筑体型抗震性能模糊评判专家系统[J].重庆建筑大学学报,1997,19(6):108-112.TAN Ke-jian,CAO Hui,MAO Yi.The Expert Systemof Fuzzy Evaluation on Aseismic Performance of BuildingStructure Type[J].Journal of Chongqing Jianzhu University,1997,19(6):108-112.
[3]TANG Hao,CHEN Guo-xin,LI Fu-rong.Hazard Evaluation System for Earthquake-induced Site LiquefactionBased on Coupling Model of ANNand GIS[C]∥2nd International Conference on Coupled Thermo-hydro-Mechani-cal-Chemical Processes in Geosystems and Engineering,Nanjing:China,2006:694-699.
[4]何萌,柴军瑞.VB与FORTRAN混合编程的两种方法及其比较[J].水电能源科学,2005,23(1):60-63.HE Men,CHAI Jun-rui.Two Kinds of Methods of Mixing VBand FORTRANin One Programand Their Compar-ison[J].Water Resources and Power,2005,23(1):60-63.
[5]魏晓莉,戚国强,刘海洋,等.利用ActiveX实现可视化的神经网络模型[J].东北农业大学学报,2005,36(1):78-81.WEI Xiao-li,QI Guo-qiang,LI U Hai-yang,et al.Realizing The Visual Neural Network by Using ActiveX Tech-nology[J].Journal of Northeast Agricultural University,2005,36(1):78-81.
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