Results 31 to 40 of about 110 (90)

Innovation and modernization of Gabčíkovo lock chambers

Structural Concrete, Volume 26, Issue 4, Page 4015-4029, August 2025.
Abstract From 2019 to 2023, extensive innovation and modernization took place at the lock chambers of the Gabčíkovo waterworks to increase the safety and intensity of the water transport. The waterworks is located on the Danube River about 60 km southeast of Bratislava—the capital of Slovakia.
Miloš Zich, Michael Trnka, Ondřej Šimek   +2 more
wiley   +1 more source

Analysis of the Dynamic Impact Mechanical Characteristics of Prestressed Saturated Fractured Coal and Rock

Advances in Civil Engineering, Volume 2019, Issue 1, 2019., 2019
The natural and water‐saturated states of coal samples under static and static‐dynamic loads were tested using the Split‐Hopkinson pressure bar (SHPB) method and RMT‐150 system, respectively. The differences in the strength reduction coefficient and elastic modulus reduction coefficient of water‐saturated coal samples under static and static‐dynamic ...
Wen Wang, Shiwei Zhang, Huamin Li, Shuang Gong, Zhumeng Liu, Gaofeng Zhao   +5 more
wiley   +1 more source

Investigation on structural failure criteria and material property uncertainties of prestressed concrete containment structure

Nuclear Engineering and Technology
This study is to examine load-carrying capacity of a prestressed concrete containment vessel under the structural failure mode test via non-linear finite element (FE) analyses.
Woo-Min Cho, Han-Sang Woo, Yoon-Suk Chang   +2 more
doaj   +1 more source

Stress corrosion tests for prestressing steels—Part 1: The influence of surface condition and test solution composition on hydrogen charging

Materials and Corrosion, Volume 75, Issue 11, Page 1506-1518, November 2024.
Stress corrosion tests, according to ISO 15630‐3, are mandatory in approvals and continuous surveillance of prestressing steels. This experimental paper deals with the technical problem of high scattering of the stress corrosion test results and focuses on the test parameters solution composition, surface condition, and temperature in electrochemical ...
Lando Seifert, Andreas Grunewald, Thoralf Müller, Gino Ebell   +3 more
wiley   +1 more source

A Parameter Sensitivity Analysis of the Effect of Rebar Corrosion on the Stress Field in the Surrounding Concrete

Advances in Materials Science and Engineering, Volume 2017, Issue 1, 2017., 2017
Rebar corrosion results in a change in the stress field in the surrounding concrete, which in turn accelerates the deterioration of the concrete structure. In addition to the protective layer, the compressive stress under which concrete is prestressed also affects the effect of corrosion‐induced rebar expansion on the stress field in the concrete.
Fangyuan Li, Wenya Ye, Wei Zhou
wiley   +1 more source

An Approach for Performance-Based Capacity Assessment of Prestressed Concrete Containment Vessels for Internal Accidents Application to VVER 1000 Containment Vessel

Journal of Disaster Research, 2010
A direct procedure is proposed for capacity assessment of prestressed concrete containment structures subjected to internal accident loads. The assessment procedure is based on graphical comparison between the structural capacity and the load intensity by plotting both parameters in the same “temperature gradient – overpressure” coordinate system ...
Anton Andonov, Dimitar Stefanov, Marin Kostov   +2 more
openaire   +1 more source

Delayed deformation of confinement buildings: 30‐Year in situ measured data and prediction with the next‐generation Eurocode‐2

Structural Concrete, Volume 25, Issue 3, Page 1702-1712, June 2024.
Abstract Biaxially prestressed large concrete structures of the confinement building in nuclear power plants (NPPs) should meet the safety requirement for the extension of the service time. Long‐term delayed strains of concrete are one of the key factors determining the safety factor in these structures.
Abudushalamu Aili, Jean‐Michel Torrenti, Francis Barre, Ludovic Caba   +3 more
wiley   +1 more source

A Review on Radiation Damage in Concrete for Nuclear Facilities: From Experiments to Modeling

Modelling and Simulation in Engineering, Volume 2016, Issue 1, 2016., 2016
Concrete is a relatively cheap material and easy to be cast into variously shaped structures. Its good shielding properties against neutrons and gamma‐rays, due to its intrinsic water content and relatively high‐density, respectively, make it the most widely used material for radiation shielding also.
Beatrice Pomaro, Anna Pandolfi
wiley   +1 more source

Effects of No Stiffness Inside Unbonded Tendon Ducts on the Behavior of Prestressed Concrete Containment Vessels

Nuclear Engineering and Technology, 2016
AbstractThe numerical simulation methodologies to evaluate the structural behaviors of prestressed concrete containment vessels (PCCVs) have been substantially developed in recent decades. However, there remain several issues to be investigated more closely to narrow the gap between test results and numerical simulations.
Sang-Hoon Noh, Hyo-Gyong Kwak, Raeyoung Jung   +2 more
openaire   +2 more sources

Enhanced Stochastic Approaches of 1 : 4 PCCV in Nuclear Power Plant: Uncertainty Quantification and Fragility Assessment

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
Probabilistic evaluation of the internal pressure capacity before excessive leakage is essential for ensuring preemptive response in case of a severe accident in a prestressed concrete containment vessel (PCCV) subjected to internal pressure in a nuclear power plant.
Bu-Seog Ju, Ho-Young Son, Paolo Castaldo
wiley   +1 more source