Results 191 to 200 of about 6,903,650 (214)

Probabilistic seismic safety assessment of bridges with random pier scouring

Proceedings of the Institution of Civil Engineers - Structures and Buildings
Foundation scour has been a reason for several cases of river-bridge earthquake-induced failure during recent decades. However, practising engineers often do not consider its direct effect on the seismic design procedure of such structures. The cavity around a bridge foundation is a random phenomenon depending on several uncertain parameters.
Ali Raoof Mehrpour Hosseini, Mehran S. Razzaghi, Nasser Shamskia   +2 more
openaire   +1 more source

Probabilistic Models to Assess the Seismic Safety of Rigid Block-Like Elements and the Effectiveness of Two Safety Devices

Journal of Structural Engineering, 2019
AbstractWhen subject to earthquakes, some objects and structures, such as statues, obelisks, storage systems, and transformers, show a dynamic behavior that can be modeled considering the object/st...
Contento A., Gardoni P., Di Egidio A., De Leo A.   +3 more
openaire   +1 more source

Options for the treatment of uncertainty in seismic probabilistic safety assessment of nuclear power plants

Pollack Periodica, 2010
One of the most complex cases for assessing the nuclear power plant safety is the evaluation of the response of the plant to an earthquake and calculation of the core damage frequency related with this. Plant level fragilities are convolved with the seismic hazard curves to obtain a set of doublets for the plant damage state.
openaire   +2 more sources

Probabilistic Seismic Safety Assessment of Chinese RC Frame Structures Using Fragility Curves

Vulnerability, Uncertainty, and Risk, 2014
A simulation-based procedure was adopted to generate fragility curves for five Chinese-code conforming reinforced concrete (RC) frame structures with increasing design-based earthquake (DBE) intensities. Two important elements, namely probabilistic seismic demand analysis (PSDA) and probabilistic seismic capacity analysis (PSCA), were involved in the ...
Xiaohui Yu, Dagang Lu
openaire   +1 more source

Failure Probability of Degraded Pipes Based on Probabilistic Fracture Mechanics for Seismic Safety Margin Assessment on NPP

ASME 2010 Pressure Vessels and Piping Conference: Volume 1, 2010
The Niigata-ken Chuetsu-oki Earthquake happened in July 2007. Although the observed seismic ground motions of Kashiwazaki-Kariwa nuclear power plants greatly exceeded their design values, the important functions of the plants such as “shutdown”, “cooling”, and “confinement” were successfully ensured.
Yinsheng Li, Masaki Nakagawa, Katsumi Ebisawa, Shinobu Yoshimura, Hiroyuki Kameda   +4 more
openaire   +1 more source

Probabilistic seismic safety assessment of a CANDU 6 nuclear power plant including ambient vibration tests: Case study

Nuclear Engineering and Design, 2016
Abstract Following the 2011 Fukushima Daiichi nuclear accident in Japan there is a worldwide interest in reducing uncertainties in seismic safety assessment of existing nuclear power plant (NPP). Within the scope of a Canadian refurbishment project of a CANDU 6 (NPP) put in service in 1983, structures and equipment must sustain a new seismic demand ...
Ali Nour, Abdelhalim Cherfaoui, Vladimir Gocevski, Pierre Léger   +3 more
openaire   +2 more sources

The Effect of Full Seismic Correlation Assumption in Seismic Probabilistic Safety Assessment

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference, 2020
Woo Sik Jung, Geon Gyu Choi
openaire   +1 more source

Comparison of Two Approaches for Seismic Probabilistic Safety Assessment

Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference, 2020
Ji Suk Kim, Man Cheol Kim
openaire   +1 more source

On the Concept of Inherent Core Damage Frequency: a Framework for Residual Risk Floors in Seismic Probabilistic Safety Assessment

Risk Analysis
ABSTRACT In seismic probabilistic safety assessment (SPSA), ongoing efforts to reduce core damage frequency (CDF) encounter fundamental limitations due to modeling saturation, epistemic uncertainties, and the diminishing contribution of extremely low‐probability events.
openaire   +2 more sources

Fault Displacement Hazard Analysis Based on Probabilistic Seismic Hazard Analysis for Specific Nuclear Sites

Applied Sciences (Switzerland), 2021
Tamás János Katona, Gyori Erzsébet
exaly