Results 21 to 30 of about 43,293 (223)

A SURVEY OF MATLAB EFFICIENCY IN DAMAGE DETECTION OF CONCRETE GRAVITY IN CONCRETE GRAVITY DAMS

open access: yesIIUM Engineering Journal, 2019
 Detection of damage in concrete gravity dams (CGDs) is one of the challenges that need to be overcome since dam failure may lead to irreversible consequences. This research aims to detect structural damage within CGDs by wavelet analysis. From a structural point of view, stiffness is an important factor in the dynamic behaviour of concrete gravity dam
Sajad Esmaielzadeh   +2 more
openaire   +3 more sources

Nonlinear analysis of concrete gravity dams under normal fault motion [PDF]

open access: yesJournal of Structural and Construction Engineering, 2016
The importance of the seismic behavior of concrete gravity dams in their safety evaluation and stability is inevitable. Many factors affect the prediction of the behavior of concrete dams such as dam-foundation-reservoir interaction, dam and foundation ...
Mehdi Alijani Ardeshir   +2 more
doaj  

Research and Application of a Seismic Damage Classification Method of Concrete Gravity Dams Using Displacement in the Crest

open access: yesApplied Sciences, 2020
Concrete gravity dams are one of the most common water retention structures, some of which are located in seismically active regions. Determination of damage level after earthquakes plays an important role in assessing the safety behavior of concrete ...
Xiang Lu   +4 more
doaj   +1 more source

A Novel Method for Constructing Main-Aftershock Sequences and Its Application in the Global Damage Accumulation Effects Analysis of Gravity Dams

open access: yesShock and Vibration, 2021
The traditional linear elastic and Drucker–Prager (DP) models cannot truly reflect the strong nonlinear characteristics of the concrete and rock foundation of the dam under earthquake.
Liaojun Zhang   +4 more
doaj   +1 more source

Optimization of the Temperature and Thermo-Stressed State of a Concrete Dam Constructed from Particularly Lean Roller-Compacted Concrete

open access: yesBuildings, 2023
In this paper, we consider the optimization of temperature conditions and the thermo-stressed state of a concrete gravity dam made of extra lean roller-compacted concrete constructed in climate conditions corresponding to the Pskem HPP in the Republic of
Nikolai Alekseevich Aniskin   +1 more
doaj   +1 more source

Thermal-stress behaviour of RCC gravity dams [PDF]

open access: yesFME Transactions, 2015
Roller Compacted Concrete (RCC) is a special concrete mixture with low cement content, frequently used for concrete gravity dams. This paper deals with the 3D finite element model for unsteady phased thermal-stress analysis of RCC dams. Model calibration
Kuzmanović Vladan   +2 more
doaj  

The damage to model concrete gravity dams subjected to water explosions

open access: yesDefence Technology, 2023
Over the past century, the safety of dams has gradually attracted attention from all parties. Research on the dynamic response and damage evolution of dams under extreme loads is the basis of dam safety issues.
Shang Ma   +5 more
doaj   +1 more source

DAM MOVEMENT MODELING BY USING MULTIPLE LINEAR REGRESSION AND ARIMA MODELS [PDF]

open access: yesGeodetski Glasnik, 2020
Structural health monitoring of the large infrastructural objects (high buildings, bridges, tunnels, dams, etc.) is in the domain of civil and geodetic engineers who use different methods and instruments for this task.
Adis Hamzić, Dina Kamber Hamzić
doaj   +1 more source

Fracture analysis of concrete gravity dam under earthquake induced loads

open access: yesJournal of Applied Sciences and Environmental Management, 2011
In this paper, seismic fracture behavior of the concrete gravity dam using finite element (2D) theory has been studied. Bazant model which is non-linear fracture mechanics criteria as a measure of growth and smeared crack was chosen to develop profiles ...
A Mansouri, MAL Neshaei, R Aghajany
doaj   +1 more source

Blast-Resistance and Damage Behavior of Underwater Explosion for Concrete Gravity Dam Considering Concrete Strength Partition

open access: yesBuildings, 2023
The consequences of dam damage caused by explosions, wars, and terrorist attacks are extremely serious, and they can cause casualties among downstream residents.
Wenlong Huo
doaj   +1 more source

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