CAREER: Determination of Performance-Based Earthquake Engineering Parameters using Paleoseismic Techniques

职业:使用古地震技术确定基于性能的地震工程参数

基本信息

项目摘要

The objective of this project is to develop and validate a framework for assessing seismic hazard parameters for regions where moderate-to-large earthquakes are high-consequence, low-probability events so that performance-based earthquake engineering (PBEE) can be properly implemented. The implementation of PBEE requires both the fragility of structural systems and the probabilistically quantified seismic hazard to be known in order to establish the annual probability of specific losses due to seismic events. However, the probabilistic quantification of the seismic hazard is highly uncertain in regions where the return period of moderate-to-large earthquakes is significantly longer than the historic earthquake record, such as in the Pacific Northwest (PNW) and the central/eastern United States (CEUS) -- we know moderate-to-large earthquakes occurred in these regions, we just do not know how large the events were or how often they occur. Paleoseismic techniques, particularly paleoliquefaction investigations (i.e., the study of liquefaction features from pre-instrumental earthquakes), are the most plausible way to extend the earthquake record into prehistoric times. Such techniques allow both the recurrence time and characteristics of moderate-to-large earthquakes to be established and, thus, remove a major impediment to implementing PBEE in these regions. The impact of the project will be the significant reduction of the seismic risk of newly designed and constructed standard and hazardous facilities. The project is particularly timely as the nation (as well as the world) renews their interest in the construction of nuclear power plants, which if to be realized safely requires proper quantification of seismic hazard. For regions of the US where the new plants are likely to be located (e.g., CEUS), reliable paleoseismic data are absolutely essential for assessing seismic hazard. In addition to graduate students from the University of Michigan (UM), undergraduate students from both UM and Valparaiso University will participate in a demonstration exercise in which a paleoseismic investigation of the Wabash Valley Seismic Zone will be performed. Also, as part of this project, the PI is initiating an outreach program for military veterans. The reason for establishing this outreach is that veterans tend to possess many of life's skills that will enable them to succeed in academics. The vast majority of enlisted veterans come from the lower socio-economic echelons in the US, and a large percentage of veterans are underrepresented minorities, as compared to the general population.
该项目的目标是开发和验证一个框架,用于评估中到大地震是高后果、低概率事件的地区的地震危险性参数,以便能够正确实施基于性能的地震工程(PBEE)。PBEE的实施需要了解结构系统的脆弱性和概率量化的地震危害,以便建立地震事件造成的特定损失的年概率。然而,地震灾害的概率量化在中至大地震的重现期明显长于历史地震记录的地区是高度不确定的,例如太平洋西北地区(PNW)和美国中部/东部地区(CEUS)——我们知道这些地区发生了中至大地震,我们只是不知道事件有多大或发生的频率。古地震技术,特别是古液化研究(即对仪器前地震液化特征的研究),是将地震记录延伸到史前时代的最合理的方法。这些技术可以确定中大型地震的重现时间和特征,从而消除了在这些地区实施PBEE的主要障碍。该项目的影响将是显著降低新设计和建造的标准和危险设施的地震风险。这个项目是特别及时的,因为国家(以及世界)重新燃起了他们对核电站建设的兴趣,如果要安全实现,就需要对地震危险进行适当的量化。对于美国可能有新核电站的地区(例如CEUS),可靠的古地震数据对于评估地震危险性是绝对必要的。除了密歇根大学(University of Michigan)的研究生外,密歇根大学和瓦尔帕莱索大学(Valparaiso University)的本科生将参加演示演习,其中将进行沃巴什谷地震带的古地震调查。此外,作为该项目的一部分,PI正在为退伍军人发起一项外展计划。建立这种联系的原因是,退伍军人往往拥有许多生活技能,使他们能够在学术上取得成功。绝大多数退伍军人来自美国较低的社会经济阶层,与普通人口相比,很大一部分退伍军人是代表性不足的少数民族。

项目成果

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Russell Green其他文献

Russell Green的其他文献

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{{ truncateString('Russell Green', 18)}}的其他基金

Evaluating Liquefaction Potential of Challenging Soil Sites: Linking Geomorphological Controls and Novel Approaches for Site Characterization
评估具有挑战性的土壤场地的液化潜力:将地貌控制与场地表征新方法联系起来
  • 批准号:
    1825189
  • 财政年份:
    2019
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant
RAPID/Collaborative Research: Advanced Site Characterization of Key Ground Motion and Ground Failure Case Histories Resulting from the Mw7.8 Kaikoura, New Zealand, Earthquake
RAPID/协作研究:新西兰凯库拉 Mw7.8 地震造成的关键地震动和地面故障案例历史的高级现场表征
  • 批准号:
    1724575
  • 财政年份:
    2017
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant
Evaluation of Earthquake-Induced Liquefaction Damage Potential to Infrastructure
地震引起的基础设施液化损坏潜力评估
  • 批准号:
    1435494
  • 财政年份:
    2015
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant
RAPID/Collaborative Research: Liquefaction Triggering & Consequences for Low-Plasticity Silty Soils, Christchurch, New Zealand
RAPID/协作研究:液化触发
  • 批准号:
    1407428
  • 财政年份:
    2014
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant
RAPID: Liquefaction and its Effects on Buildings and Lifelines in the 2010-2011 Canterbury, New Zealand Earthquake Sequence
RAPID:2010-2011 年新西兰坎特伯雷地震序列中的液化及其对建筑物和生命线的影响
  • 批准号:
    1306261
  • 财政年份:
    2013
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant
Energy-based Approach for Evaluating and Mitigating Liquefaction Potential
用于评估和缓解液化潜力的基于能量的方法
  • 批准号:
    1030564
  • 财政年份:
    2010
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant
CAREER: Determination of Performance-Based Earthquake Engineering Parameters using Paleoseismic Techniques
职业:使用古地震技术确定基于性能的地震工程参数
  • 批准号:
    0644580
  • 财政年份:
    2007
  • 资助金额:
    $ 36.71万
  • 项目类别:
    Standard Grant

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