Large-Scale Numerical Modeling in Geotechnical Earthquake Engineering
Large-Scale Numerical Modeling in Geotechnical Earthquake Engineering
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DOI：
10.1061/(asce)gm.1943-5622.0000042
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发表时间：
2011-12-01
影响因子：
3.7
通讯作者：
Conte, Joel P.
中科院分区：
文献类型：
--
作者：
Lu, Jinchi;Elgamal, Ahmed;Conte, Joel P.
在离心机和振动台实验数据的基础上，校准继续推动更精确的计算模型的发展。诸如耦合固流公式和非线性增量塑性方法等功能允许更真实地表示所涉及的静态和动态/地震响应。此外，当代高性能并行计算环境允许从整个地基基础结构系统的分析中获得新的见解。在此基础上，大规模数值模拟的视野正在扩大，以进一步促进更精确的分析和设计策略的发展。本文提出的研究通过最近进行的三维（3D）代表性研究工作来解决这个问题，这些研究工作模拟了(1)浅基础液化对策，(2)桩支撑码头和(3)全桥-地面系统的地震反应。此外，本文还讨论了使能3D模拟环境日常使用的工具，作为支持更广泛采用和实际应用的重要因素。在这方面，图形用户界面和可视化方法可以发挥关键作用。(C) 2011美国土木工程师学会。
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. (C) 2011 American Society of Civil Engineers.