水力发电学报2011，Vol.30Issue(6)：117-121,5.
官地重力坝极限抗震能力初探
Preliminary study on limit aseismic ability of Guandi gravity dam
摘要
Abstract
The ultimate aseismic ability of Guandi concrete gravity dam is preliminarily studied to improve the design of non-overflow monoliths.Nonlinear behaviors of various contacts under strong earthquakes are examined,including contacts of roller-compacted layers at the head of dam,dam foundation surface and deep slip surface.Foundation damping is considered to reflect energy dissipation of seismic ground motion through radiation outwards to the surounding foundation.Various effects on grout curtain are comprehensively analyzed,the effects of relative streamwise displacement at the dam crest,contacts opening and closing and opening range.Results show that relative to the design earthquake,the overloading safety factor of Guandi gravity dam is about 1.3.关键词
水工结构/极限抗震能力/接触非线性/混凝土重力坝/地基辐射阻尼Key words
hydraulic structure/ultimate aseismic ability/contact nonlinear/concrete gravity dam/radiation damping of foundation分类
建筑与水利引用本文复制引用
李德玉,张伯艳,何建涛..官地重力坝极限抗震能力初探[J].水力发电学报,2011,30(6):117-121,5.基金项目
水科院科研专项 （）
水利部公益性行业科研专项 （）
