Petascale Research in Earthquake System Science on Blue Waters (PressOnBlueWaters)

蓝色水域地震系统科学的千万亿次研究 (PressOnBlueWaters)

• 批准号: 0832698
• 负责人: Thomas Jordan
• 金额: $ 4万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2014-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0832698&HistoricalAwards=false
• 关键词: Petascale; Research; Earthquake; System; Science

This award facilitates scientific research using the large new computational resource named Blue Waters being developed by IBM and scheduled to be deployed at the University of Illinois in 2011. It provides travel funds to support technical coordination between the principal investigators, the Blue Waters project team and vendor technical team and a provisional allocation of supercomputing time on the system.The project involves the preparation, by the research team, of three seismic and engineering modeling codes. These model fault rupture, propagate seismic energy through a detailed structural model of Southern California, predict ground motion, and model building response to broadband ground motions. The goal is to combine the use of these codes to understand building damage likely to result from realistic, strong earthquakes. The researchers will attempt to predict likely damage from major earthquakes in the Greater Los Angeles Basin (GLAB) as follows. For a given fault rupture scenario, a regional earthquake simulation will be performed. The GLAB will be divided into sub-regions. In each sub-region, a simulation will be made of ground motion and the resulting deformation of structures such as buildings and bridges, including the nonlinear effects of different types of soils and feedback in the interactions between ground motions and built structures. The potential for structural damage will be determined from calculations of inter-story drift and local deformation in buildings, and the damage potential for buried pipelines will be determined from predictions of soil deformation, lateral spreading and liquefaction along pipelines.Improved simulation of earthquakes, the associated ground motion, and its impact on buildings will provide better seismic hazard assessment and inform the design of safer building codes.

该奖项利用 IBM 开发的名为 Blue Waters 的大型新型计算资源促进科学研究，计划于 2011 年在伊利诺伊大学部署。它提供差旅费，以支持主要研究人员、Blue Waters 项目团队和供应商技术团队和系统上超级计算时间的临时分配。该项目涉及研究团队准备三个地震和工程建模代码。 这些模型断层破裂，通过南加州的详细结构模型传播地震能量，预测地面运动，并建立对宽带地面运动响应的模型。 目标是结合使用这些规范来了解现实的强地震可能造成的建筑损坏。 研究人员将尝试如下预测大洛杉矶盆地（GLAB）大地震可能造成的损害。 对于给定的断层破裂场景，将进行区域地震模拟。 GLAB 将分为多个子区域。 在每个子区域中，将对地面运动以及由此产生的建筑物和桥梁等结构的变形进行模拟，包括不同类型土壤的非线性效应以及地面运动与建筑结构之间相互作用的反馈。 结构损坏的可能性将通过计算建筑物的层间位移和局部变形来确定，埋地管道的损坏可能性将通过预测管道沿线的土壤变形、横向扩展和液化来确定。相关的地面运动及其对建筑物的影响将提供更好的地震危害评估，并为更安全的建筑规范的设计提供信息。