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Issue:
Effects of reservoir model and reservoir depth on dynamic responses of arch dams
Author(s):
CHEN Jiang
Pages:
131
-
136
Year:
2010
Issue:
2
Journal:
Earthquake Engineering and Engineering Vibration
Keyword:
arch dam
;
seismic response
;
fluid-solid coupling
;
transverse joint
;
reservoir model
;
Abstract:
基于接触非线性有限元模型,以锦屏一级拱坝为例,库水分别采用附加质量模型、可压缩流体有限元模型、不可压缩流体有限元模型计算了正常蓄水位及运行低水位时坝体的动力响应,结果表明:库水模型对拱坝动力响应有较大影响,随库水深度的增大,各模型计算结果差异增大;相比于流体可压缩模型,采用不可压缩流体模型所得动力响应普遍偏大;运行低水位工况,由于静水压力减小导致拱效应减弱,从而降低了拱坝的整体性,因此运行低水位工...
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