摘要
2015年4月25日尼泊尔发生了M_S8.1级地震,给人们的提示是:在发生过强震的地方,有可能再次发生同样强度的地震。自上世纪20年代以来,台湾就发生过两次M_S8.0级大地震,遗憾的是对两次强震均未获得强震加速度记录。上海是目前世界上高层建筑最多的城市。本文用经验格林函数法合成台湾M_S8.0级大地震,通过合成得到加速度时程来估算对上海产生的地表面波强度。将来台湾一旦发生M_S8.0级大地震,其面波对上海高层建筑的影响也将最为显著,本文给出的估算强度旨在为地震应对和应急救援提供一定的参考。
A Ms8.1 earthquake occurred in Nepal on April 25, 2015, which implies to us that macro-earthquakes may occur at the same place with same intensity. Since the 1920s of last century, two Ms8.0 earthquakes occurred in Taiwan. However, no acceleration of the two earthquakes was recorded. Shanghai has the largest number of high-rise buildings. We apply empirical Green＇s function to synthesize Taiwan MsS.0 earthquake and to estimate the intensity of ground surface wave in shanghai. We found that if a Ms8.0 earthquake occurs in Taiwan, the impact of the surface wave on Shanghai high-rise buildings will be remarkable. The estimation value is aimed to be helpful in earthquake response and emergency rescue.
出处
《震灾防御技术》
CSCD
北大核心
2016年第2期360-366,共7页
Technology for Earthquake Disaster Prevention
基金
上海市科研计划项目资助课题(编号09231203700)
关键词
经验格林函数法
地震动
高层建筑
Empirical Green function
Ground motion
High-rise buildings
