Results 41 to 50 of about 2,588 (226)

Time‐Variant Seismic Fragility of Reinforced Concrete Bridge Piers Considering Degradation Phenomena

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Aging and environmental exposure progressively deteriorate the physical and mechanical properties of construction materials, thereby affecting the safety and functionality of existing infrastructure. Corrosion of steel rebars in reinforced concrete structures is widely acknowledged as the most common and detrimental degradation phenomenon, as ...
Paolo Andrea Miglietta, Gianni Blasi, Daniele Perrone, Francesco Micelli, Maria Antonietta Aiello   +4 more
wiley   +1 more source

Evaluation of Seismic Condition and Physical and Demographic Vulnerability in Rafsanjan City [PDF]

مخاطرات محیط طبیعی, 2019
Evaluation of Seismic Condition and Physical and Demographic Vulnerability in Rafsanjan CityAbstract Today, only the urban problems are not limited in the social, economic, political, cultural issues, but natural factors which constitute the substrate of
Hosain Ghazanfarpour, Mohsen Pourkhosravani, Mahdiyeh Soleimani Sardo   +2 more
doaj   +1 more source

Models for Seismic Vulnerability Analysis of Power Networks: Comparative Assessment

Computer-Aided Civil and Infrastructure Engineering, 2014
Electric power networks are spatially distributed systems, subject to different magnitude and recurrence of earthquakes, that play a fundamental role in the well-being and safety of communities. Therefore, identification of critical components is of paramount importance in retrofit prioritization.
CAVALIERI, FRANCESCO, FRANCHIN, Paolo, J. Buritica, Solomon Tesfamariam   +3 more
openaire   +1 more source

Directionality Scaling of Scalar and Vector Ground Motion Intensity Measures

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The azimuthal directionality of earthquake ground‐motion intensity measures (IMs) is conventionally described by the ratios between the orientation‐independent maximum (RotD100) and median (RotD50) values over the horizontal plane. This study presents a refined characterization of the directionality of 31 IMs, including spectral accelerations (
Mao‐Xin Wang, Gang Wang
wiley   +1 more source

An Intensity Measure‐Based Methodology for Ground Motion Orientation in Seismic Structural Assessment

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT In current dynamic time history assessment protocols, ground motion recordings are mostly oriented along fixed sensor directions. Consequently, the orientation of the principal resultant of rupture energy, which may control the maximum structural demand, remains undefined, precluding consistent correlation with physically detrimental ...
Santiago Londono‐Lopez, Raffaele Cucuzza, Fabrizio Mollaioli, Giuseppe Carlo Marano, Marco Domaneschi   +4 more
wiley   +1 more source

A Novel Approach for Evaluating Seismic Performance of Frame-Type Underground Structures

Buildings
This paper examines the seismic performance evaluation methodology for underground structures. Through analysis of seismic damage and failure characteristics of underground structures, this study proposes a novel evaluation approach for frame-type ...
Zhong-Yang Yu, Jing-Kun Zhang, Zheng-Quan Yang, Jing-Jun Li, Kai-Bin Zhu, Jian-Ming Zhao   +5 more
doaj   +1 more source

Three‐Dimensional Analytical Model of a Podium Structure With Rocking Columns of Square Cross Section

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Allowing structural systems to uplift and rock during seismic excitation has emerged as an effective and inherently self‑centering form of seismic isolation. This paper develops a computationally efficient 3D analytical model suitable for the understanding of the behavior of rocking bridges.
Dimitra Adamopoulou, Michalis F. Vassiliou   +1 more
wiley   +1 more source

Enhancing the Seismic Resilience of Masonry‐Infilled RC Structures Using Rubber Joints: Full‐Scale 3D Shaking Table Tests

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Masonry infills in reinforced concrete (RC) frames are highly vulnerable to seismic damage, often sustaining severe cracking even under moderate ground motion, which in turn leads to considerable economic losses and safety risks. To address this issue, this study experimentally evaluates the effectiveness of two innovative rubber‐based joints ...
Enrico Tubaldi, Marko Marinković, Simone Galano, Alessandro Lotti, Fabio Freddi, Daniele Losanno, Hamid Ahmadi, Matija Gams, Nemanja Krtinić, Matija Bošković, Christoph Butenweg, Prateek Kumar Dhir, Filip Manojlovski, Aleksandra Bogdanovic, Zoran Rakicevic, Vlatko Sheshov, Julijana Bojadjieva   +16 more
wiley   +1 more source

Two methodological approaches to assess the seismic vulnerability of masonry bridges

Journal of Traffic and Transportation Engineering (English ed. Online), 2019
This work describes the seismic vulnerability assessment of a railway masonry arch bridge. Its conservation state is initially investigated by means of a thorough field and laboratory test campaign, comprising destructive and non-destructive tests.
Diego Maria Barbieri
doaj   +1 more source

Seismic Vulnerability of Segmental Bridges with Drop-In Span by Pushover Analysis

Applied Sciences, 2023
Insight into the application of pushover analysis to prestressed concrete segmental bridges built in the 1950s–1970s by cantilevering with medium-large span length is provided.
Piero Colajanni, Michele Fabio Granata, Lidia La Mendola   +2 more
doaj   +1 more source