The Effects of Dam-Reservoir Interaction on the Nonlinear Seismic Response of Earth Dams

被引：20

作者：

Pelecanos, Loizos ^{[1
,2
]}

Kontoe, Stavroula ^{[2
]}

Zdravkovic, Lidija ^{[2
]}

机构：

[1] Univ Bath, Dept Architecture & Civil Engn, Bath, Avon, England

[2] Imperial Coll London, Dept Civil & Environm Engn, London, England

来源：

JOURNAL OF EARTHQUAKE ENGINEERING | 2020年 / 24卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

Earth dam; Reservoir; earthquake; dynamic analysis; finite elements; dam-reservoir interaction; FLUID-STRUCTURE INTERACTION; DOMAIN REDUCTION METHOD; FINITE-ELEMENT-METHOD; HYDRODYNAMIC PRESSURES; DYNAMIC-RESPONSE; TRANSIENT ANALYSIS; CONCRETE GRAVITY; BOUNDARY-CONDITION; SLOPING DAMS; ARCH DAMS;

D O I：

10.1080/13632469.2018.1453409

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The objective of this study is to investigate the effects of dam-reservoir interaction (DRI) on the nonlinear seismic response of earth dams. Although DRI effects have for long been considered as insignificant for earth dams, that conclusion was mainly based on linear elastic investigations which focused only on the acceleration response of the crest without examining the seismic shear stresses and strains within the dam body. The present study explores further the impact of DRI focusing on the nonlinear behavior of earth dams. The effects of reservoir hydrodynamic pressures are investigated in terms of both seismic dam accelerations and nonlinear dynamic soil behavior (seismic shear stresses and strains). It is shown that although dam crest accelerations are indeed insensitive to DRI, the stress and strain development within the dam body can be significantly underestimated if DRI is ignored.

引用

页码：1034 / 1056

页数：23

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