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Safety Aspects of Sustainable Storage Dams and Earthquake Safety of Existing Dams

Martin Wieland

Engineering 2016, Volume 2, Issue 3,   Pages 325-331 doi: 10.1016/J.ENG.2016.03.011

Abstract: The special features of the seismic safety of dams are discussed.Large dams were the first structures to be systematically designed against earthquakes, starting in theTherefore, we need to reevaluate the seismic safety of existing dams based on current state-of-the-artpractices and rehabilitate deficient dams.For large dams, a site-specific seismic hazard analysis is usually recommended.

Keywords： Dams     Earthquake design     Earthquake safety     Existing dams     Design criteria     Seismic hazard     Sustainability    

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A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

Frontiers of Engineering Management 2014, Volume 1, Issue 4,   Pages 341-347 doi: 10.15302/J-FEM-2014060

Abstract: The healthy and stable development of energy efficiencies in existing buildings cannot be separated fromsystem and a grey comprehensive evaluation model for policy effectiveness for energy efficiency in existing

Keywords： grey comprehensive evaluation     existing buildings     energy efficiency     policies effectiveness    

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Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 37-52 doi: 10.1007/s11709-022-0920-3

Abstract: An analytical model is proposed to estimate the discontinuous mechanical behavior of an existing shieldThe existing shield tunnel is regarded as a Timoshenko beam with longitudinal joints.indicate that our proposed method is suitable for simulating the discontinuous mechanical behaviors of existingand their abrupt changes at vulnerable sections must be monitored to ensure the structural safety of existing

Keywords： tunnel–soil interaction     discontinuous analysis     longitudinal joints     existing shield tunnel     Timoshenko    

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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 taking

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

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removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration, pH, and co-existing

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 428-433 doi: 10.1007/s11783-009-0146-9

Abstract: Moreover, a negative relationship was observed between the co-existing ions of Cl, Na, SO, and Ca and

Keywords： nanofiltration (NF)     rejection rate     co-existing ion     co-ion     counter-ion    

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Seismic retrofit of existing SRC frames using rocking walls and steel dampers

Akira WADA, Zhe QU, Shojiro MOTOYUI, Hiroyasu SAKATA

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 259-266 doi: 10.1007/s11709-011-0114-x

Abstract: A retrofit of an existing 11-story steel reinforced concrete frame that features the innovative use ofThe retrofitting system is expected to effectively control the deformation pattern of the existing structureand significantly reduce damage to the existing structure during major earthquakes.

Keywords： building structure     seismic retrofit     rocking wall     steel damper    

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Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 111-116 doi: 10.1007/s11709-009-0022-5

Abstract: In this paper, a novel “composite reaching law” was explained in details: 1) the equation of discrete motion for a control system; 2) the design of discrete-time variable structure control. In addition, the model of a three-storey shear-type building structure was used to verify the effectiveness of the discrete variable structure control method. The results of numerical example analysis of the model show that the control law can effectively reduce the peak value of seismic response of the building structure and the chattering effect of the control system.

Keywords： discrete-time variable structure control     composite reaching law     chattering effect     saturated control law    

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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    

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Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Eduardo E. ALONSO, Rafaela CARDOSO,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 1-39 doi: 10.1007/s11709-010-0013-6

Abstract: The basis of the design of earth and rockfill dams is focused on ensuring the stability of the structurehydro-mechanical behavior of traditional and non-traditional materials used in the construction of damsthe current level of knowledge on the behavior of traditional materials used in the construction of dams

Keywords： dams     unsaturated soil mechanics     suction     rockfill     clayey soil     mixture    

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Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1581-0

Abstract:

● The co-existing metals in WPCBs has positive catalytic influence

Keywords： Waste printed circuit board     Catalyst     Pyrolysis     Kinetics    

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Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element

Farhoud KALATEH

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 15-37 doi: 10.1007/s11709-018-0465-7

Abstract: In this study, the air blast response of the concrete dams including dam-reservoir interaction and acousticelement (FE) developed code are used to build three-dimensional (3D) finite element models of concrete damsNumerical results revealed that 1) concrete arch dams are more vulnerable to air blast loading than concretegravity dams; 2) reservoir has mitigation effect on the response of concrete dams; 3) acoustic cavitationintensify crest displacement of concrete dams.

Keywords： air blast loading     concrete dams     finite element     dam-reservoir interaction     cavitation     concrete damage model    

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Study on Externality and Its Calculation Method of Existing Commercial Residential Buildings Energy Saving

Zhao Yan,Liu Xiaojun

Strategic Study of CAE 2014, Volume 16, Issue 10,   Pages 100-105

Abstract:

Externality exists in the field of existing commercial residential buildings

Keywords： existing commercial residential buildings     energy saving retrofit     externality     calculation    

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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 means

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

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Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges

Yang LIU, Jing LIU

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 376-384 doi: 10.1007/s11465-012-0352-1

Abstract:

This article is dedicated to present a review on existing challenges and latest developments in surgicalWhile endeavors to deal with existing strategies still need to be made, attentions should be paid to

Keywords： minimally invasive surgery     surgical robotics     haptic feedback     miniaturization     bio-inspiration     bionics    

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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: interaction plays an important role in the design of earthquake-resistant concrete arch and gravity damsIn this paper, the effect of foundation inhomogeneity on the seismic response of arch and gravity damsstiffness discontinuity and with weak interlayer strata on the earthquake response of concrete arch damsas well as gravity dams were analyzed.effect of foundation inhomogeneity for the earthquake safety assessment of concrete arch and gravity dams

Keywords： selection     interlayer     damfoundation interaction     Geological     computational    

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Title Author Date Type Operation

Safety Aspects of Sustainable Storage Dams and Earthquake Safety of Existing Dams

Martin Wieland

Journal Article

A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

Journal Article

Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Journal Article

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

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

Journal Article

removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration, pH, and co-existing

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

Journal Article

Seismic retrofit of existing SRC frames using rocking walls and steel dampers

Akira WADA, Zhe QU, Shojiro MOTOYUI, Hiroyasu SAKATA

Journal Article

Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

Journal Article

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

Herbert LINSBAUER

Journal Article

Behavior of materials for earth and rockfill dams: Perspective from unsaturated soil mechanics

Eduardo E. ALONSO, Rafaela CARDOSO,

Journal Article

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

Journal Article

Dynamic failure analysis of concrete dams under air blast using coupled Euler-Lagrange finite element

Farhoud KALATEH

Journal Article

Study on Externality and Its Calculation Method of Existing Commercial Residential Buildings Energy Saving

Zhao Yan,Liu Xiaojun

Journal Article

Shape design of arch dams under load uncertainties with robust optimization

Fengjie TAN, Tom LAHMER

Journal Article

Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges

Yang LIU, Jing LIU

Journal Article

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

LIN Gao, DU Jianguo, HU Zhiqiang

Journal Article