运动学震源模型对近断层长周期地震动模拟研究综述

Review of long period strong ground motion simulations at near-field based on kinematic source models

初步分析了运动学震源模型对近断层长周期地震动模拟的研究现状、分析方法和模拟验证思路,运动学震源模型最新成果的运用对该研究至关重要,包括使用经验性的全局和局部震源模型参数,来设定地震震源破裂过程,以及使用已发生的特大地震的确定性复杂破裂过程两类。着重从这两类震源破裂过程的使用方式入手,综述了其对该研究的重要影响。由于未来的发展趋势向震源理论发展与应用,大地震震后快速产出、城市活断层灾害评估和特大地震地震危险性分析等方面集中,因此,从长周期工程结构的防震减灾来看,更多以及更细致的震源模型产出将有助于长周期强地震地面运动的模拟和预测。

This paper preliminary analyzed the study of kinematic source model, summarized its impacts on the long period ground motion of near - fault, discussed the current status of this study, analytic technique and results verifi- cation. It is essential to apply the latest achievements of the kinematic source models to ground motion research. The usage of source rupture process include two modes ： one is using empirical outer and inner source model parame- ters to set source rupture process, the other is using the deterministic complex source rupture processes of actual major earthquakes that have happened. We focused on these two modes and reviewed their significant influences on this study. The future trends will focus on the applications of the latest achievements of source theory, the fast re- sponse as well as disaster management, urban active fault hazard assessments and seismic hazard analysis. There- fore, it is desirable, also from the disaster prevention viewpoints on long period of engineering structures, to deter- mine multiple cases in order to identify the extent of differences in the strong ground motion prediction results de- pending on the source models.