During the great Wenchuan earthquake, about 460 permanent free-field stations in National Strong Motion Observation Network System （NSMONS） of China captured the main shock acceleration records. These records can be...During the great Wenchuan earthquake, about 460 permanent free-field stations in National Strong Motion Observation Network System （NSMONS） of China captured the main shock acceleration records. These records can be applied to site effect analyses, and then the site classification of those permanent stations can be carried out firstly, which will served as the fundamental information for further research. In this paper, the site of near-fault stations is classified by horizontal-to-vertical spectral ratio （HVSR） method according to the site class description of Japan earthquake resistant design code and response spectral shapes （RSS） method following the site class description of the 1997 Uniform Building Code （UBC） provisions. Then based on the detailed borehole data of those free-field stations, the equivalent shear wave velocity and overburden thickness are calculated and the site classifications are given by Chinese code for seismic design of buildings. Furthermore, for the stations having successful microtremor test data, the site dominant periods are computed to verify the results of site classification. Finally, combined with all the above results, the recommended site classes of near-fault permanent free-field stations are given.展开更多
The catalogs of ground motion parameters for earthquake-prone regions of Kazakhstan used for modeling seismic effects in seismic hazard assessment and microzonation are presented.
为了提高地震观测台站的信息化管理水平,保障仪器装备高效稳定运行,促进台网数据交互共享,针对台站管理和装备保障业务关于省地震局—市县地震局—中心台的三级用户需求,以台站基础信息管理、仪器运行状态监控、技术保障信息管理为设计...为了提高地震观测台站的信息化管理水平,保障仪器装备高效稳定运行,促进台网数据交互共享,针对台站管理和装备保障业务关于省地震局—市县地震局—中心台的三级用户需求,以台站基础信息管理、仪器运行状态监控、技术保障信息管理为设计主线,利用ASP.NET 4.0和SQL Server 2008技术,以B/S模式采用Visual C#语言设计一套基于Web的地震台站和技术设备管理保障系统。用户根据不同权限,通过局域网即可实现对台站和仪器设备的基本信息管理、仪器安装运行管理、设备维护维修登记、实时设备运行监控、运行统计评估报表产出、信息展示等功能,具有较好的实用价值和推广前景。展开更多
基金supported by the projects from the Ministry of Science and Technology of China (No.2009BK55B00)China Earthquake Administration (CEA) (No. 200808026)Institute of Engineering Mechanics of CEA (No. 0618001)
文摘During the great Wenchuan earthquake, about 460 permanent free-field stations in National Strong Motion Observation Network System （NSMONS） of China captured the main shock acceleration records. These records can be applied to site effect analyses, and then the site classification of those permanent stations can be carried out firstly, which will served as the fundamental information for further research. In this paper, the site of near-fault stations is classified by horizontal-to-vertical spectral ratio （HVSR） method according to the site class description of Japan earthquake resistant design code and response spectral shapes （RSS） method following the site class description of the 1997 Uniform Building Code （UBC） provisions. Then based on the detailed borehole data of those free-field stations, the equivalent shear wave velocity and overburden thickness are calculated and the site classifications are given by Chinese code for seismic design of buildings. Furthermore, for the stations having successful microtremor test data, the site dominant periods are computed to verify the results of site classification. Finally, combined with all the above results, the recommended site classes of near-fault permanent free-field stations are given.
文摘The catalogs of ground motion parameters for earthquake-prone regions of Kazakhstan used for modeling seismic effects in seismic hazard assessment and microzonation are presented.
文摘为了提高地震观测台站的信息化管理水平,保障仪器装备高效稳定运行,促进台网数据交互共享,针对台站管理和装备保障业务关于省地震局—市县地震局—中心台的三级用户需求,以台站基础信息管理、仪器运行状态监控、技术保障信息管理为设计主线,利用ASP.NET 4.0和SQL Server 2008技术,以B/S模式采用Visual C#语言设计一套基于Web的地震台站和技术设备管理保障系统。用户根据不同权限,通过局域网即可实现对台站和仪器设备的基本信息管理、仪器安装运行管理、设备维护维修登记、实时设备运行监控、运行统计评估报表产出、信息展示等功能,具有较好的实用价值和推广前景。
