Results 61 to 70 of about 2,124 (305)

Development of Seismic Fragility Function for Underground Railway Station Structures in Korea

Buildings
This study describes the methodology employed to construct a seismic fragility function based on a pre-existing numerical model tailored for underground stations.
Sun Yong Kwon, Jongkwan Kim, Dongyoup Kwak, Seunghoon Yang, Mintaek Yoo   +4 more
doaj   +1 more source

Vertical Seismic Effect on the Seismic Fragility of Large-Space Underground Structures

Advances in Civil Engineering, 2019
The measured vertical peak ground acceleration was larger than the horizontal peak ground acceleration. It is essential to consider the vertical seismic effect in seismic fragility evaluation of large-space underground structures.
Zhiming He, Qingjun Chen
doaj   +1 more source

Cost Analysis Insights for Offshore CCS Hubs: A Case Study of the Santos Basin, Brazil

Greenhouse Gases: Science and Technology, EarlyView.
ABSTRACT The reuse of decommissioned offshore platforms for geological carbon storage offers a cost‐effective and technically feasible strategy to reduce greenhouse gas emissions in emerging economies. This study presents a comprehensive techno‐economic assessment of offshore carbon capture and storage (CCS) hubs in Brazil, with a focus on the Merluza ...
Norah A. Ordoñez, Mariana Ciotta, Hirdan Katarina de Medeiros Costa, Livia Koch Sposito, Daniel Alkmin   +4 more
wiley   +1 more source

Mainshock-Integrated Aftershock Vulnerability Assessment of Bridge Structures

Applied Sciences, 2020
Seismic fragility analysis is often conducted to quantify the vulnerability of civil structures under earthquake excitation. In recent years, besides mainshocks, strong aftershocks have been often witnessed to induce structural damage to engineered ...
Xuan Guo, Zheyu Zhang, ZhiQiang Chen
doaj   +1 more source

A Coupled Extended Finite Element–Cohesive Zone Model for Hydraulic Fracture Propagation Under Poroelastic Effects Across Different Propagation Regimes

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Numerical simulation of hydraulic fracturing remains challenging due to the strong coupling between geomechanics and fluid flow when modelling multiple physical mechanisms of rock deformation, fracture evolution and fluid leak‐off. This study develops a coupled hydraulic fracture propagation framework that combines the extended finite element ...
Ran Tao, Juliana Y. Leung, Samer Adeeb
wiley   +1 more source

Fragility Assessment of Single Concrete Pier and Pile-Soil Interaction Impact under Near and Far-Fault Earthquakes

Proceedings of the International Conference of Contemporary Affairs in Architecture and Urbanism-ICCAUA
Civil engineers face a significant challenge in assessing seismic vulnerability due to the complex of soil-pile-structure interaction system. This research aims to evaluate the seismic vulnerability of individual piers under various seismic ground ...
Foudhil Lemsara, Tayeb Bouzid, Djarir Yahiaoui, Mohamed Saadi   +3 more
doaj   +1 more source

A LMM-based seismic fragility analysis method for bridges

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The common seismic fragility analysis methods are mainly inaccurate due to assumptions made in derivation process or time consuming because of large sample analysis. A new approach based on lognormal mixture model (LMM) is presented for seismic fragility analysis of long-span bridges, where LMM is used to calculate the ...
openaire   +1 more source

Numerical Modeling of Geological Fault Reactivation Using Sequential Coupling Strategies

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The interaction between fluid flow and mechanical deformation in fault zones can lead to processes of fault reactivation, triggering potential geomechanical problems such as seismicity, well collapse, fluid migration to shallower layers, and aggravated surface subsidence.
Julio Rueda, Cristian Mejia, Roberto Quevedo, Deane Roehl   +3 more
wiley   +1 more source

Analytical Seismic Fragility Curves for Reinforced Concrete Wall pier using Shape Memory Alloys considering maximum drift

MATEC Web of Conferences, 2019
Fragility curves express the seismic vulnerability of bridge piers for different damage states at various earthquake intensities. A fragility curve typically gives a physical understanding of repair costs and functionally levels of a bridge pier.
Ahmad Nursafarina, Ibrahim Azmi, Alam Shahria   +2 more
doaj   +1 more source

Seismic fragility evaluation of the base-isolated nuclear power plant piping system using the failure criterion based on stress-strain

Nuclear Engineering and Technology, 2019
In the design criterion for the nuclear power plant piping system, the limit state of the piping against an earthquake is assumed to be plastic collapse. The failure of a common piping system, however, means the leakage caused by the cracks.
Sung-Wan Kim, Bub-Gyu Jeon, Dae-Gi Hahm, Min-Kyu Kim   +3 more
doaj   +1 more source