RAPID: Low-Cost, Strong-Motion Sensor Packages to Obtain Full Spectrum Waveforms for Earthquake Early Warning and Structural Monitoring Applications

RAPID：低成本、强运动传感器套件，可获取地震预警和结构监测应用的全频谱波形

• 批准号: 1208729
• 负责人: Yehuda Bock
• 金额: $ 8.55万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-02-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1208729&HistoricalAwards=false
• 关键词: RAPID; Low; Cost; Strong; Motion

This Grant for Rapid Response Research (RAPID) investigates low-cost, strong-motion instrumentation for the earth sciences and structural engineering research communities to provide a new interdisciplinary data type: real-time, full spectrum displacements based on an optimal combination of high-rate global positioning system (GPS) and very high-rate accelerometer data. These new data both fully capture dynamic and static near-field strong motion and enable its analysis and characterization in real time. The ability to obtain full spectrum waveforms in three dimensions with millimeter precision is also a breakthrough for rapidly and fully estimating the response of large engineered structures (for example, bridges, buildings, and dams) at the full range of periods. This approach improves the timeliness of earthquake characterization by an order of magnitude and improves its fullness by spanning the full spectrum of ground deformation from the very high frequencies all the way through to direct current (DC) offsets. The project will gather perishable structural response data from five prototype sensor packages placed on the five-story building test specimen, constructed under NSF award CMMI 0936505, that will undergo strong seismic motion on the NEES outdoor shake table at the University of California, San Diego in early 2012. The sensors enable a new technological paradigm for studying the processes of large earthquakes and the hazards they pose by taking fuller advantage of seismic and geodetic instrumentation through integration, thereby providing a new data observation type. The sensor devices have applications in the fields of seismology, tsunamis, and structural engineering, where early detection, warning or damage assessment is needed. Information gathered and processed with the device could be used by authorities and first responders in the very immediate aftermath of a strong earthquake. This project also promotes collaborative and interdisciplinary research, education of technologically sophisticated graduate and undergraduate students, strengthening of diversity in support of workforce development, and enhancement of curricula through engagement with integrated data sets that have direct societal impact.

这项用于快速响应研究的赠款（快速）研究了地球科学和结构工程研究社区的低成本，强运动仪器，以提供新的跨学科数据类型：基于高速公路全球定位系统（GPS）和非常高的加速仪数据的最佳组合，实时，全光谱位移。 这些新数据都完全捕获动态和静态近场强运动，并实现其分析和表征。以毫米精度获得三个维度的全光谱波形的能力也是快速并充分估计在整个时期范围内大型工程结构（例如，桥梁，建筑物和大坝）响应的突破。这种方法通过数量级的顺序提高了地震表征的及时性，并通过跨越了从非常高的频率到直流电流（DC）偏移量的整个地面变形来改善其饱满度。 该项目将从五个原型传感器套件中收集可腐烂的结构响应数据，放置在NSF奖CMMI 0936505下构建的五层建筑测试样品上，该标本将在加利福尼亚大学的NEES户外摇桌上进行强烈的地震运动，该动作在加利福尼亚大学，圣地亚哥分校，2012年早期，该传感器启用了新的技术范围。地震和大地测量仪器通过整合，从而提供新的数据观察类型。 传感器设备在需要早期检测，警告或损害评估的地震学，海啸和结构工程领域中有应用。 在强烈地震发生后，当局和第一响应者可以使用该设备收集和处理的信息。该项目还促进了合作和跨学科研究，对技术成熟的毕业生和本科生的教育，增强支持劳动力发展的多样性以及通过参与具有直接社会影响的综合数据集来增强课程。