Presidential Young Investigators Award - Soil-Structure Interaction Under Earthquake Loading

这一行动是为了支持总统青年调查员奖。研究了地震和一般动力荷载作用下的土-结构相互作用。例如，建筑物或桥梁基础(基座或桩)与其所在的土壤之间的相互作用，或隧道、管道、电力或通信电缆之间的相互作用，以及它所经过的地面。这种相互作用可能会对结构造成破坏。对于小地震动的情况，这一现象的分析是一个困难的问题：对于发生在大地震地表断层附近的大的地面位移，问题变得困难得多。这个项目的目标是通过一个协调的研究计划来发展对这个主题的坚定的理解，该计划涉及(1)在弹性和塑性理论的背景下，(2)用有限元和边界积分方程法进行弹塑性本构关系的数值模拟；(3)用实验来了解潜在的物理现象。

This action is for support of a Presidential Young Investigator award. The research addresses soil-structure interaction under conditions of earthquake and general dynamic loading. Examples include the interaction between a building or bridge foundation (footings or piles) and the soil on which it rests, or the interaction between a tunnel, pipeline, power or communication cable, and the ground through which it runs. This interaction may result in damage to the structure. The analysis of this phenomenon for the case of small ground motions is a difficult problem: for the large ground displacements that occur near the surface fault of a large earthquake, the problem becomes much more difficult. The goal of this project is to develop a firm understanding of the subject through a coordinated research program involving (1) an investigation of the corresponding fundamental problems in the context of the theory of elasticity and plasticity, (2) numerical modeling using elasto-plastic constitutive theories by finite element and boundary integral equation methods, and (3) experiments to understand the underlying physical phenomena.