Results 21 to 30 of about 749 (182)

Near fault and far fault seismic analysis of concrete gravity dam [PDF]

open access: yesJournal of Hydraulic Structures, 2020
Ground motions records of the past higher magnitude (Mw>5) earthquakes have indicated that ground motions recorded at the closest distance of the near-fault are very different from those recorded from a higher distance from the site of the far-fault ...
Prince Pundrik   +2 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  

Seismic Performance Differences between Hardfill Dam and Gravity Dam [PDF]

open access: yes长江科学院院报
[Objective] To reveal the differences in seismic performance between hardfill dams and concrete gravity dams, this study investigates the nonlinear seismic response of the Oyuk dam (a typical hardfill dam) in Turkey and the non-overflow section of the ...
HE Wei-ping, SONG Jun-jie, PENG Yun-feng, HUANG Shi-bo, LIU Wang
doaj   +1 more source

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

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

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

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

Predicting seismic damage on concrete gravity dams: a review

open access: yesStructure and Infrastructure Engineering, 2022
The seismic assessment of concrete gravity dams is a problem of prediction of cracking and the corresponding consequences. With the widespread use of general-purpose finite element programs, the work in the field has shifted towards quantifying the behaviour in a framework for assessment.
Yalin Arici, Berat Feyza Soysal
openaire   +2 more sources

National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas

open access: yesSustainable Development, EarlyView.
ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne   +10 more
wiley   +1 more source

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

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