3D effects of seismic ground motion in the Taipei Basin and implications for hazard and risk

台北，台湾的台湾的省会，在过去的几十年里经历了几次破坏性的地震。台北盆地拥有观测到的加速度记录、岩土参数和盆地几何信息的综合数据库，是世界上研究浅、中深度地震的盆地和场地效应的最佳范例之一。本研究的主要目的为：（1）了解台北盆地二维-三维弹性模型的响应;（2）将计算结果与许多仪器记录进行比较，包括分析二维-三维模型的优点和局限性;（3）将结果纳入灾害评估程序（确定性和概率性）。台北盆地的场地相关地震危险性评估的结果将是至关重要的重新评估的建筑规范的要求，地震损失估计和评估的地震可靠性的现有结构。在一个相对较小的沉积盆地中波的传播对地震动特性的影响的洞察力，应可转移到可比的地区与欠发达的数据库。

Taipei, the capital of Taiwan, experienced several damaging earthquakes in the past decades. With a comprehensive data base of observed accelerograms, geotechnical parameters, and information on basin geometry, the Taipei basin represents one of the best examples in the world where basin and site effects for shallow and intermediate depth earthquakes can be studied. The main goals of the proposed research are: (1) understanding of the Taipei basin response by 2D-3D elastic modeling; (2) comparison of computational results with the many instrumental records including the analysis of advantages and limitations of the 2D-3D modeling; (3) incorporation of the results into hazard assessment procedures (deterministic and probabilistic). The results of site-dependent seismic hazard estimates for the Taipei basin will be critical for a re-evaluation of the Building Code requirements, earthquake loss estimation and evaluation of seismic reliability of existing structures. The insight into the influence of wave propagation in a relatively small sedimentary basin on ground motion characteristics should be transferable to comparable regions with a less developed data base.