面板堆石坝地震易损性评价

IF 0.4 Q4 ENGINEERING, GEOLOGICAL
Jongmin Baeg, Duhee Park, Jinam Yoon, B. Choi
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引用次数: 1

摘要

本研究导出了CFRD大坝的易损性曲线,用于估计其随地震动强度的概率损伤。坝顶沉降是一种广泛使用的损伤指标,可分为轻度、中度和广泛性损伤状态。采用非线性动力数值模拟方法计算沉降量。通过与离心机试验的比较,验证了数值模型的准确性。脆弱性曲线表示为对数正态分布函数,并表示为峰值地面加速度的函数。本研究建立的易损性曲线可用于大坝损伤的实时评估。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluation of Seismic Fragility of Concrete Faced Rockfill Dam
The fragility curves for CFRD dams are derived in this study for probabilistic damage estimation as a function of a ground motion intensity. The dam crest settlement, which is a widely used damage index, is used for minor, moderate, and extensive damage states. The settlement is calculated from nonlinear dynamic numerical simulations. The accuracy of the numerical model is validated through comparison with a centrifuge test. The fragility curve is represented as a log normal distribution function and presented as a function of the peak ground acceleration. The fragility curves developed in this study can be utilized for real time assessment of the damage of dams.
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