The role of input energy in assessing seismic hazard and damage following the Turkey earthquakes

输入能量在评估土耳其地震后地震灾害和损害中的作用

• 批准号: 0085301
• 负责人: Lance Manuel
• 金额: $ 7.04万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0085301&HistoricalAwards=false
• 关键词: role; input; energy; assessing; seismic

CMS-0085301ManuelThe Role of Input Energy in Assessing Seismic Hazard and Damage following the 1999 Turkey EarthquakesThe main focus of this study is to examine the extent of correlation of energy-based descriptors of ground motion with the observed spatial distribution of damage during the recent 1999 earthquakes in Turkey. Of secondary interest is a comparison between more conventional strength-based descriptors (such as spectral acceleration) and these energy-based descriptors.Probabilistic seismic hazard analyses will be performed using both of these frequency-dependent ground motion parameters. Revised attenuation models including data from the recent earthquakes (with emphasis on recorded near-fault motions) will enhance the current database and reduce uncertainty in hazard estimates. Whenever soil profile information is available, attempts will be made to include site effects in the hazard estimates.Damage data for short-period industrial structures and for residential and office buildings will be collected from various regions and will also be correlated spatially with input energy and spectral acceleration demands.Products of this study will include new predictive attenuation models as well as an understanding of the importance of energy-based ground motion descriptors and of the role of site effects on seismic hazard and on damage to short- and long-period structures.

输入能量在评估1999年土耳其地震后地震危险和破坏中的作用本研究的主要重点是研究1999年土耳其地震中基于能量的地面运动描述符与观测到的破坏空间分布的相关性程度。第二感兴趣的是比较更传统的基于强度的描述符（如谱加速）和这些基于能量的描述符。概率地震危害分析将使用这两种频率相关的地面运动参数进行。修订后的衰减模型包括最近地震的数据（重点是记录的近断层运动），将增强当前的数据库并减少危险估计的不确定性。只要有土壤剖面资料，就会设法在危害估计中包括场地影响。短期工业结构、住宅和办公楼的损坏数据将从各个地区收集，并将在空间上与输入能量和频谱加速度需求相关联。这项研究的成果将包括新的预测衰减模型，以及对基于能量的地面运动描述符的重要性的理解，以及对地震危险和对短期和长期结构破坏的场地影响的作用。