Current state of integrated earthquake simulation for earthquake hazard and disaster
Current state of integrated earthquake simulation for earthquake hazard and disaster
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DOI：
10.1007/s10950-007-9083-x
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发表时间：
2008-02
影响因子：
1.6
通讯作者：
M. Hori;T. Ichimura
中科院分区：
文献类型：
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作者：
M. Hori;T. Ichimura
本文介绍了地震灾害综合模拟的现状。该模拟利用了宏观-微观分析方法；该方法利用边界介质理论得到预期强震分布的乐观和悲观估计，并利用奇异摄动展开得到有效的多尺度分析，从而获得高时空分辨率的地震强震估计。综合地震模拟计算目标区域内所有结构的地震反应，将模拟的强地震动输入到结构分析方法中，该方法通过封装器插入系统；根据结构的类型选择合适的线性或非线性方法。所有模拟的结果都是可视化的，这样居民和政府官员就可以对地震的危害和灾难有一个共同的认识。给出了两个综合地震模拟实例；一种是将非线性结构分析方法引入到系统中，另一种是针对一个实际城市，利用现有的地理信息系统建立城市的计算机模型。
This paper presents the current state of integrated simulation for earthquake hazard and disaster. This simulation takes advantage of the macro–micro analysis method; this method estimates an earthquake’s strong motion with high spatial and temporal resolution, using the bounding medium theory to obtain optimistic and pessimistic estimates of expected strong motion distribution and the singular perturbation expansion that results in an efficient multi-scale analysis. Integrated earthquake simulation calculates seismic responses for all structures in a target area, inputting simulated strong ground motion to a structure analysis method that is plugged into the system by means of a wrapper; a suitable method, linear or nonlinear, is chosen depending on the type of the structure. The results of all simulations are visualized so that residences and government officials can share a common recognition of earthquake hazard and disaster. Two examples of this integrated earthquake simulations are presented; one is made by plugging nonlinear structure analysis methods into the system, and the other is made for an actual city, the computer model of which is constructed with the help of available geographical information systems.