报告题目：Large-Scale Numerical Modeling in Geotechnical Earthquake Engineering
报告人：Prof. Ahmed Elgamal, University of California, San Diego (UCSD)
时 间：2013年1月21日上午10:00-11:30
地 点：浙江大学紫金港校区安中大楼A-420
报告摘要：Calibration, on the basis of data from centrifuge and shake table experiments, continues to promote the development of more accurate computational models. Capabilities such as coupled solid–fluid formulations and nonlinear incremental-plasticity approaches allow for more realistic representations of the involved static and dynamic/seismic responses. In addition, contemporary high-performance parallel computing environments are permitting new insights, gained from analyses of entire ground-foundation-structural systems. On this basis, the horizon is expanding for large-scale numerical simulations to further contribute toward the evolution of more accurate analysis and design strategies. The studies presented in this paper address this issue through recently conducted three-dimensional (3D) representative research efforts that simulate the seismic response of (1) a shallow-foundation liquefaction countermeasure, (2) a pile-supported wharf, and (3) a full bridge-ground system. A discussion of enabling tools for routine usage of such 3D simulation environments is also presented, as an important element in support of wider adoption and practical applications. In this regard, graphical user interfaces and visualization approaches can play a critical role.
报告人简介：Ahmed Elgamal博士，加州大学圣地亚哥分校岩土工程教授，结构工程系主任(2003-2007)，工学院院长。1984年普林斯顿大学获得博士学位。1997年加入加州大学圣地亚哥分校担任教授，之前曾在加州理工学院(1985-1986）、伦斯勒理工学院（1986-1996）和哥伦比亚大学（1996-1997）任教。他曾担任美国国家科学基金会地震工程模拟网络（NEES）信息技术项目首席科学家（2006-2007）、加州大学伯克利分校太平洋地震工程研究中心PEER岩土工程重点领域带头人（2001-2007）。Elgamal教授研究领域主要包括大尺度岩土力学及土结相互作用的实验与计算模拟，信息技术在土木工程及岩土力学中的应用，以及通过系统识别和数据挖掘方法分析岩土系统响应等。研究成果已发表超过250篇学术论文，目前担任国际期刊Soil Dynamics and Earthquake Engineering主编。