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.

快速响应研究（RAPID）研究地球科学和结构工程研究社区的低成本，强运动仪器，以提供一种新的跨学科数据类型：基于高速率全球定位系统（GPS）和极高速率加速度计数据的最佳组合的实时，全谱位移。 这些新的数据都充分捕捉动态和静态近场强运动，并使其分析和表征在真实的时间。以毫米级精度获得三维全频谱波形的能力也是快速和全面估计大型工程结构（例如桥梁，建筑物和水坝）在全周期范围内响应的突破。这种方法通过一个数量级提高了地震表征的及时性，并通过跨越从非常高的频率一直到直流（DC）偏移的地面变形的全频谱来提高其完整性。 该项目将从五个原型传感器包中收集易损坏的结构响应数据，这些传感器包放置在五层楼高的建筑测试样本上，根据NSF奖项CMMI 0936505建造，该测试样本将于2012年初在加州大学圣地亚哥分校的NEES室外振动台上进行强烈地震运动。传感器通过整合更充分地利用地震和大地测量仪器，从而提供了一种新的数据观测类型，从而为研究大地震过程及其造成的危害提供了一种新的技术范式。 传感器设备在地震学、海啸和结构工程领域有应用，这些领域需要早期检测、预警或损害评估。 该设备收集和处理的信息可供当局和第一反应人员在强烈地震后立即使用。该项目还促进合作和跨学科研究，技术先进的研究生和本科生的教育，加强多样性，以支持劳动力发展，并通过参与具有直接社会影响的综合数据集来加强课程。