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

该奖项促进了使用IBM开发的名为Blue沃茨的大型新计算资源的科学研究，并计划于2011年在伊利诺伊大学部署。 它提供旅费，以支助主要调查员、蓝色沃茨项目小组和供应商技术小组之间的技术协调，并临时分配该系统的超级计算时间，该项目涉及由研究小组编写三个地震和工程模拟代码。 这些模型断层破裂，传播地震能量通过一个详细的结构模型南加州，预测地面运动，并模拟建筑物的宽带地面运动的反应。 目标是联合收割机使用这些代码来了解建筑物损坏可能导致现实的，强烈的地震。 研究人员将试图预测大洛杉矶盆地（GLAB）大地震可能造成的损害，如下所示。 对于给定的断层破裂情景，将进行区域地震模拟。 GLAB将分为若干次区域。 在每个分区，将模拟地面运动和建筑物和桥梁等结构的变形，包括不同类型土壤的非线性效应和地面运动与建筑物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土壤变形、沿沿着的侧向扩展和液化来确定。改进地震模拟、相关地面运动及其对建筑物的影响将提供更好的地震危险评估，并为更安全的建筑规范设计提供信息。

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.