Effects of close proximity underwater explosion on the nonlinear dynamic response of concrete gravity dams with orifices
Sign Up to like & getrecommendations! Published in 2018 at "Engineering Failure Analysis"
DOI: 10.1016/j.engfailanal.2018.06.016
Abstract: Abstract In order to meet the demand for power, irrigation, flood control, drinking water, etc., many orifices are usually designed on the dam body. This paper is aimed to evaluate the close proximity underwater explosion… read more here.
Keywords: gravity dams; close proximity; underwater explosion; proximity underwater ... See more keywords
Blast-induced damage and evaluation method of concrete gravity dam subjected to near-field underwater explosion
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Structures"
DOI: 10.1016/j.engstruct.2019.109996
Abstract: Abstract Bomb attacks from terrorists have become potential risks to important infrastructures, most of which were built without considering their vulnerability to such events. This paper focuses on the blast-induced damage to concrete gravity dams… read more here.
Keywords: dam; evaluation method; damage; damage evaluation ... See more keywords
Influence of Reservoir Water Levels on the Protective Performance of Concrete Gravity Dams Subjected to Underwater Explosions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Structural Engineering"
DOI: 10.1061/(asce)st.1943-541x.0002143
Abstract: AbstractBlast loads would cause serious damage to concrete gravity dams, and a possible dam break can lead to a catastrophe in downstream populated areas. Preventing damage to dam structures is of ... read more here.
Keywords: water levels; gravity dams; influence reservoir; reservoir water ... See more keywords
Comparison of homogenous and random fields of tensile strength effects on the nonlinear dynamical response of Guandi concrete gravity dams under strong earthquake waves
Sign Up to like & getrecommendations! Published in 2020 at "Structure and Infrastructure Engineering"
DOI: 10.1080/15732479.2020.1832534
Abstract: Abstract Spatial variability of tensile strength, widely existing in concrete gravity dams due to the influence of long construction period and heterogeneous construction quality, has a profound impact on the nonlinear behaviour of structures. In… read more here.
Keywords: tensile strength; strength; random fields; gravity dams ... See more keywords
The Failure Mechanism of Concrete Gravity Dams considering Different Nonlinear Models under Strong Earthquakes
Sign Up to like & getrecommendations! Published in 2021 at "Shock and Vibration"
DOI: 10.1155/2021/5558284
Abstract: The paper focuses on the failure process and mechanism of the concrete gravity dam considering different nonlinear models under strong earthquakes. By taking a typical monolith of a concrete gravity dam as a case study,… read more here.
Keywords: failure; mechanism concrete; nonlinear models; concrete gravity ... See more keywords
Evaluation of Hydrodynamic Pressure Distribution in Reservoir of Concrete Gravity Dam under Vertical Vibration Using an Analytical Solution
Sign Up to like & getrecommendations! Published in 2021 at "Mathematical Problems in Engineering"
DOI: 10.1155/2021/6669366
Abstract: Fluid-structure interaction causes a hydrodynamic force, which can be exerted to the dam and affects its response. The effect of vertical excitation of ground motion on dynamic behavior of concrete gravity dam is the most… read more here.
Keywords: vertical vibration; gravity dam; reservoir; vibration ... See more keywords
Risk Assessment of Aged Concrete Gravity Dam Subjected to Material Deterioration Under Seismic Excitation
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Concrete Structures and Materials"
DOI: 10.1186/s40069-020-00430-z
Abstract: This paper proposes an approach to assess and predict the seismic risk of existing concrete gravity dams (CGDs) considering the ageing effect. The combination of fragility function and cumulative absolute velocity (CAV) depending on two… read more here.
Keywords: gravity dam; seismic excitation; dam; time ... See more keywords
New explicit formulas for optimum design of concrete gravity dams
Sign Up to like & getrecommendations! Published in 2021 at "Computers and Concrete"
DOI: 10.12989/cac.2021.27.2.143
Abstract: Large dams are a part of the infrastructure of any society, and a huge amount of resources are consumed to build them. Among the various types of dams, the optimum design of concrete gravity dams… read more here.
Keywords: concrete gravity; gravity dams; optimum design; gravity ... See more keywords
Damage index based seismic risk generalization for concrete gravity dams considering FFDI
Sign Up to like & getrecommendations! Published in 2021 at "Structural Engineering and Mechanics"
DOI: 10.12989/sem.2021.78.1.053
Abstract: The determination of the damage index to reveal the performance level of a structure can constitute the seismic risk generalization approach based on the parametric analysis. This study implemented this concept to one kind of… read more here.
Keywords: concrete gravity; seismic risk; damage index; gravity ... See more keywords
Damage detection in concrete gravity dams using signal processing algorithms based on earthquake vibrations
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Vibroengineering"
DOI: 10.21595/jve.2019.20202
Abstract: In structural engineering, damage detection in concrete gravity dams (CGDS) is a practical problem. Dam destruction can have severe financial consequences and may even lead to fatalities. Therefore, structural health monitoring in advance is crucial.… read more here.
Keywords: damage detection; detection; gravity dams; detection concrete ... See more keywords
Calculation and Analysis of Temperature Damage of Shimantan Concrete Gravity Dam Based on Macro–Meso Model
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15207138
Abstract: Considering that ANSYS software will automatically quit or the computer will freeze when generating random aggregate models of concrete by using some existing methods that are based on the ANSYS parametric design language (APDL), a… read more here.
Keywords: damage; dam; temperature damage; model ... See more keywords