Development of Prototype of Integrated Earthquake Disaster Simulator Using Digital City and Strong Ground Motion Simulator with High-resolution

An analysis method called macro-micro analysis method has been proposed to compute strong ground motion distribution with highest spatial and temporal resolution, which is based on multi-scale analysis. Strong ground motion (SGM) simulator with high-resolution is developed using this analysis method. Basic validity is verified by comparison with measured data. Prototype of Integrated Earthquake Disaster Simulator (IEDS) is also developed using this SGM simulator and digital city for realistic earthquake disaster simulation of possible earthquake. Computed SGM distribution is used to shake a computer model of a virtual town, which consists of various structure models. The model is constructed by using data, which are stored in Geographical Information System and CAD. Dynamic responses are computed for all structures subjected to the SGM at each site. All resulting dynamic responses are stored in computer system and earthquake disaster of this virtual town is estimated by various indexes.