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Reliability and variance-based sensitivity analysis of arch dams during construction and reservoir impoundment

M. Houshmand KHANEGHAHI, M. ALEMBAGHERI, N. SOLTANI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 526-541 doi: 10.1007/s11709-018-0495-1

Abstract: The static performance of arch dams during construction and reservoir impoundment is assessed takingDez arch dam is chosen as the case study; it is modeled along with its rock foundation using the finiteSince previous studies concentrated on simplified models and approaches, comprehensive study of the arch

Keywords： concrete arch dams reliability randomness improved Latin hypercube sampling variance-based sensitivity

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Shape design of arch dams under load uncertainties with robust optimization

Fengjie TAN, Tom LAHMER

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4, Pages 852-862 doi: 10.1007/s11709-019-0522-x

Abstract: need in hydro-electricity, water storage, and flood protection, it is assumed that a series of new damsThe focus of this paper is on the non-probabilistic-based design of new arch-type dams by applying meansThe optimization of an arch-type dam is realized here by a robust optimization method under load uncertaintyBy this means, the robust design can generate an improved arch dam structure that ensures both safety

Keywords： arch dam shape optimization robust optimization load uncertainty approximation model

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Earthquake analysis of arch and gravity dams including the effects of foundation inhomogeneity

LIN Gao, DU Jianguo, HU Zhiqiang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 1, Pages 41-50 doi: 10.1007/s11709-007-0004-4

Abstract: Dam-foundation interaction plays an important role in the design of earthquake-resistant concrete archand gravity dams.In this paper, the effect of foundation inhomogeneity on the seismic response of arch and gravity damsdams as well as gravity dams were analyzed.and gravity dams has great significance.

Keywords： selection interlayer damfoundation interaction Geological computational

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Risk-based probabilistic thermal-stress analysis of concrete arch dams

Narjes SOLTANI, Mohammad ALEMBAGHERI, Mohammad Houshmand KHANEGHAHI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5, Pages 1007-1019 doi: 10.1007/s11709-019-0521-y

Abstract: The probabilistic risk of arch dam failure under thermal loading is studied.Karaj arch dam is selected as case study.

Keywords： arch dams probabilistic analysis thermal stress sensitivity reliability

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Key Technologies in the Design and Construction of 300 m Ultra-High Arch Dams

Renkun Wang

Engineering 2016, Volume 2, Issue 3, Pages 350-359 doi: 10.1016/J.ENG.2016.03.012

Abstract: seven ultra-high arch dams over 200 m tall by the end of 2014.Among these, the Jinping I (305 m), Xiaowan (294.5m), and Xiluodu (285.5 m) arch dams have reached the300 m height level (i.e., near or over 300 m), making them the tallest arch dams in the world.The design and construction of these 300 m ultra-high arch dams posed significant challenges, due tom ultra-high arch dams, including the strength and stability of foundation rock, excavation of the dam

Keywords： Ultra-high arch dam Shape optimization Arch dam overall safety Seismic safety Concrete temperature control

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Analysis of foundation sliding of an arch dam considering the hydromechanical behavior

Maria Luísa Braga FARINHA, José Vieira de LEMOS, Emanuel MARANHA DAS NEVES

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1, Pages 35-43 doi: 10.1007/s11709-012-0142-1

Abstract: This paper presents the application of a methodology which can be used to assess arch dam foundationThe relevance of carrying out hydraulic analysis in arch dam foundation failure studies is highlighted

Keywords： concrete dams rock foundations hydromechanical behavior failure analysis

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China's High Dams Construction and Research on Science and Technology

Chen Zongliang

Strategic Study of CAE 2000, Volume 2, Issue 12, Pages 84-89

Abstract:

The development and characteristics of high dams construction in China are introduced.and technology of high dams are indicated.constructed, and there are 16 dams with height over 150 m to be completed or under construction.concrete gravity dam in the Three Gorges Project, the 240 m — high Ertan double curvature concrete archNo. 1 CFRD, the 182 m- high Hongjiadu CFRD, the 233 m~high Shuibuya CFRD, the 130 m- high Shapai RCC arch

Keywords： hydroelectric power high dam gravity dam arch dam roller compacted concrete dam (RC-CD) concrete face

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Modelling autogenous expansion for magnesia concrete in arch dams

JIN Feng, LUO Xiaoqing, ZHANG Chuhan, ZHANG Guoxin

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3, Pages 211-218 doi: 10.1007/s11709-008-0025-7

Abstract: To evaluate the effects of autogenous expansion on the stresses of arch dams, a simple model of autogenousby some experimental data of autogenous expansion of Magnesia Concrete and field-measured data of an archEmbedded into finite element arch dam simulation software, this model is employed to simulate the effects

Keywords： field-measured irreversibility temperature irreversible element arch

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Analysis of arch dam deformations

Franz PERNER, Pius OBERNHUBER,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1, Pages 102-108 doi: 10.1007/s11709-010-0012-7

Abstract: an alarm is triggered in the case of larger deviations.The main contributors to the deformations of archdams are water loading and the fluctuation of concrete temperature.loading and the portion caused by temperature variation.The present article deals with the analysis of archproposed procedure is employed for the analysis of the deformations of the 186 m high Zillergruendl arch

Keywords： arch dam analysis Zillergruendl concrete temperature hybrid model

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Numerical simulation of damage in high arch dam due to earthquake

Hong ZHONG , Gao LIN , Hongjun LI

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3, Pages 316-322 doi: 10.1007/s11709-009-0039-9

Abstract: assumption that concrete is macroscopic homogeneous, the cracking evolution process and damage mode of high archdams are studied in consideration of the heterogeneity of concrete in mesoscale.combine with the Mohr-Coulomb criterion to investigate the crack development and fracture mode of high archdams under the action of an earthquake.The analysis result of a high arch dam in China under design shows that cracks that take place in concrete

Keywords： mesoscopic heterogeneity damage simulation in earthquakes arch dam

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Key problems and solutions in arch dam heightening

Zuoguang FU, Yunlong HE, Sheng SU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1, Pages 98-104 doi: 10.1007/s11709-010-0004-7

Abstract: Three problems should be dealt with when an arch dam needs to be heightened: stress state getting worseTaking Geba arch dam as an example, these problems are examined in details through simulation analysis

Keywords： arch dam heighten tensile stress finite element method

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Control mode selection for modal control of long-span arch bridge

Zhengying LI, Zhengliang LI,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4, Pages 401-406 doi: 10.1007/s11709-009-0052-z

Abstract: For seismic control of arch bridge, a model reduction of long-span arch bridge was implemented basedtime domain and frequency domain analysis method were used to verify the simplified model of the Nimu archThe numerical results show that the method of maximal modal displacement better analyze long-span arch

Keywords： selection reduced-order excitation long-span simplified

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Performance-based seismic assessment of a historical masonry arch bridge: Effect of pulse-like excitations

Frontiers of Structural and Civil Engineering Pages 855-869 doi: 10.1007/s11709-023-0972-z

Abstract: The masonry arch bridge investigated in this study was built during the Roman period and is on the island

Keywords： masonry arch bridges seismic behavior modal properties pulse-like records nonlinear time history

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Stability analysis and optimization of excavation method of double-arch tunnel with an extra-large span

Yiguo XUE, Huimin GONG, Fanmeng KONG, Weimin YANG, Daohong QIU, Binghua ZHOU

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1, Pages 136-146 doi: 10.1007/s11709-020-0710-8

Abstract: The Xiamen Haicang double-arch tunnel has a maximum span of 45.73 m and a minimum burial depth of 5.8It is therefore necessary to select a construction approach that is suitable for double-arch tunnel projectsIn this study, three construction methods for double-arch tunnels with extra-large spans were numericallyfindings can serve as the initial guidelines for the construction of ultra-shallowly buried double-arch

Keywords： double-arch tunnel triple-layer composite liner system numerical modeling stress analysis settlement

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Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1, Pages 90-97 doi: 10.1007/s11709-010-0008-3

Abstract: Dam constructions worldwide are designed and constructed in view of the strictest safety aspects for all static and dynamic load cases. As experience shows, however, formation of cracks in the “homogeneos concrete” as well as unsatisfactory compound behavior of lift joints are not to be excluded. These zones of weakness especially on the upstream side of the dam— exposed to high water pressure (static and dynamic)— represent an increased risk of safety. The main investigation, apart from the computation of the dynamic effects on the dam as a global structure, focuses on the stability analysis of a pressure-water filled crack configuration subjected to “dynamic loading” in the form of seismic action on the dam-reservoir-system and alternatively by “impact spot-loading” within sectors of the reservoir. A fracture mechanics based analysis shows an excessive potential of damage for the afflicted structure.

Keywords： dam-reservoir earthquake impact cracking fracture mechanics