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Article
Engineering, Geological
Ebrahim Afsar Dizaj et al.
Summary: This paper investigates the seismic performance and vulnerability of multi-span Reinforced Concrete (RC) bridges with unequal height piers exposed to varied corrosion damage scenarios. An advanced three-dimensional nonlinear finite element modeling technique is developed and verified with experimental results. Several nonlinear analyses are performed to evaluate the seismic behavior and vulnerability of hypothetical RC bridge specimens. The influence of corrosion scenarios on the dynamic behavior and failure mechanism of studied bridges is discussed. Time-dependent fragility curves are developed using the results of incremental dynamic analysis. The analyses reveal that the seismic vulnerability of a deteriorated RC bridge depends on the corrosion scenario of its piers, and certain corrosion scenarios can result in near-synchronized failure of unequal height piers.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2023)
Article
Construction & Building Technology
Dario De Domenico et al.
Summary: Reinforced concrete structures in aggressive environments, like bridge piers near the sea experiencing chloride attacks, may have increased seismic vulnerability. A phenomenological model is developed to describe the seismic behavior of corroded RC elements, taking into account the mechanical degradation of concrete and steel caused by corrosion. The model is validated and then used for the seismic vulnerability assessment of a specific bridge in Italy, where the RC bridge piers are exposed to carbonation and chloride-induced corrosion. The proposed approach is computationally efficient and applicable to other existing RC bridges in corrosive environments.
STRUCTURAL CONCRETE
(2023)
Article
Engineering, Civil
Marco Zucca et al.
Summary: Considering recent collapses of RC motorway bridges, the maintenance planning of these infrastructures has become increasingly important for ensuring safety under seismic loads. Corrosion of steel reinforcement, particularly due to carbonation, is a key factor affecting the structural performance of these bridges. This study evaluates the seismic vulnerability of three RC motorway bridges using non-linear time history analysis, considering different corrosion scenarios. Risk indices are calculated to optimize maintenance interventions for the motorway networks.
Article
Engineering, Civil
Jian Zhong et al.
Summary: Friction isolation bearings are commonly used in engineering structures and have good seismic isolation effects. The peak displacement of these bearings is crucial in assessing the damage of frictional isolated bridges, with excessive displacement leading to serious earthquake damage. Previous studies on the impact of vertical ground motion on the peak displacement have mostly been deterministic, with limited probabilistic research. In this study, a statistical approach is used to explore the probabilistic distribution of displacement errors caused by neglecting vertical ground motions. The results show that the mean value of the error is close to zero, while the standard deviation significantly increases with the intensity of ground motions, indicating that vertical ground motion has little impact on the mean seismic demand but strongly affects the dispersion. Empirical formulas are proposed to predict the value of the increment coefficient, providing a convenient method for designers and ensuring the safety of bridge structures.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Dario De Domenico et al.
Summary: In this study, an easy-to-use phenomenological model is developed to describe the seismic behavior of corroded reinforced concrete (RC) elements. By validating the model through experimental tests and conducting numerical analyses, the seismic vulnerability of RC bridges in corrosive environments is assessed.
STRUCTURAL CONCRETE
(2023)
Article
Engineering, Civil
Nicola Scattarreggia et al.
Summary: This study investigated the potential reasons behind the collapse of the 260 m-long reinforced concrete arch bridge in Caprigliola, Italy in April 2020. The numerical models developed showed good agreement between predicted and observed damage and debris distribution for one of the scenarios, suggesting it may be more plausible than others.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
Daniele Perrone et al.
Summary: This paper presents a framework for quantifying seismic performance factors for non-structural elements (NSEs) and provides a case study example for calibrating the behavior factor for suspended piping seismic restraint installations.
JOURNAL OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Civil
Pedro Alexandre Conde Bandini et al.
Summary: An approach combining multiple-stripe analysis and Gaussian mixture models is developed to build multivariate probabilistic seismic demand models for multicomponent structures. This flexible methodology improves the fitting of correlated response data and has significant implications for decision making in performance-based seismic engineering. The impact of this approach is demonstrated through an application on a classic highway bridge in Eastern Canada.
EARTHQUAKE SPECTRA
(2022)
Article
Engineering, Civil
Andrea Franchini et al.
Summary: This paper proposes a probabilistic performance-based design strategy for cable-stayed bridges, using parameterised fragility functions for sensitivity analysis and optimisation. The proposed strategy improves the ability to predict dynamic behaviour and optimises the probability of seismic damage and repair cost.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
Yeo Hoon Yoon et al.
Summary: Probabilistic Damage Control Application (PDCA) is a method used for seismic design of highway bridge structures. It utilizes a total risk model to conduct life-cycle cost analysis, helping designers balance performance and cost. This paper introduces an enhanced total risk model and demonstrates its application through a case study on life-cycle cost analysis using the PDCA framework.
JOURNAL OF BRIDGE ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Anna Karatzetzou et al.
Summary: Transportation networks play a crucial role in the economic prosperity of modern societies, but they are vulnerable to natural hazards. Current risk assessment studies mainly focus on the impact of a single hazard, ignoring the combined effects of multiple hazards in a multi-hazard environment. Therefore, there is a need for a reasonable and practical approach to evaluate the multi-hazard risk of transportation infrastructure.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2022)
Article
Engineering, Civil
Sunil Thapa et al.
Summary: Himalayan highways do not consider near field excitation effects in bridge design. Vertical shaking can have significant consequences in bridges, particularly at higher damage states.
Article
Engineering, Civil
Mengge Wang et al.
Summary: This study proposes a method to improve the efficiency of seismic fragility analysis by utilizing deep learning technology, transforming the analysis into a binary classification problem, and introducing a new activation function, with the accuracy and robustness of the new method demonstrated through examples.
Article
Engineering, Civil
Van-Toan Nguyen et al.
Summary: The study proposed an efficient procedure to evaluate the seismic performance of a three-hinge MUAB using fragility-based analysis. The collapse probability considering stratum-uncertainty characteristics was specified for seismic intensity and probability levels, enabling reasonable prediction of the seismic performance of MUABs.
Article
Engineering, Multidisciplinary
Veby Citra Simanjuntak et al.
Summary: To accommodate increased seismic hazards in Indonesia, provisions regarding structural details on seismic regulations have been tightened. This paper examines the variations in seismic hazard and detailing requirements for bridges from before 1990 to the present. The analysis shows that older bridges generally have lower performance compared to recently designed structures. However, the existing bridges in Indonesia still have adequate capacity under the current seismic load, although seismic vulnerability assessments need to be conducted for older bridges to ensure their safety.
JOURNAL OF ENGINEERING AND TECHNOLOGICAL SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Shaheryar Ahmed et al.
Summary: This study presents an RVS procedure for large-scale seismic vulnerability assessment and applies it to a case study province in Northern Algeria. Using data collection and parameter study, the method estimates the seismic vulnerability of buildings and assists decision-makers in planning earthquake risk reduction strategies.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2022)
Article
Engineering, Civil
Giovanni Crisci et al.
Summary: This study focuses on a specific type of arch bridge, known as the Maillart-Type Arch Bridges or Deck-Stiffened Arch Bridges. Through simulated design and structural analysis, the behavior and safety of this bridge type under static and dynamic actions are investigated. The research reveals the seismic behavior of Maillart-Type Arch Bridges and develops fragility curves for assessing their seismic vulnerability and planning mitigation measures.
ENGINEERING STRUCTURES
(2022)
Article
Construction & Building Technology
Lucia Minnucci et al.
Summary: This paper proposes a probabilistic methodology to evaluate the fragility of bridges, aiming to reveal the potential failure mechanisms and the evolution and extent of structural damage. By applying this methodology to a reinforced concrete bridge case study, the applicability of the approach is demonstrated.
Article
Construction & Building Technology
Homam Ghazal et al.
Summary: This study focuses on the vulnerability of bridges in earthquake-prone regions and the effectiveness of mitigation techniques. Through numerical modeling and experimental validation, it is found that existing bridges are vulnerable and require mitigation actions to reduce seismic losses. Based on a probabilistic assessment, retrofitting bridges with buckling restrained braces is identified as an effective measure to improve their seismic performance.
Article
Engineering, Geological
Caigui Huang et al.
Summary: This study examines the seismic behavior of bridges considering different failure modes and compares the seismic collapse risk of bridges with and without ductile detailing. Results show that the mean annual collapse rate of ductile girder bridges is significantly lower than that of non-ductile girder bridges, highlighting the importance of ductile detailing in mitigating the seismic risk of reinforced concrete bridges.
BULLETIN OF EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Civil
George Markou
Summary: Modeling, analysis, and design of retrofitting interventions is a common topic of research projects aimed at determining cost-effective strategies for improving structural seismic performance. This study proposes a hybrid modeling approach to address numerical and computational constraints in structural behavior assessment. Through numerical validation on full-scale multi-storey RC buildings and joints, the study concludes that the use of Aramid-FRP rebars in infill RC shear walls is the most cost-effective strengthening method in terms of strength and energy dissipation enhancement. Further numerical investigations are suggested to study the cost-effectiveness of additional strengthening methods and seismic isolation systems.
ENGINEERING STRUCTURES
(2021)
Article
Engineering, Civil
M. Salkhordeh et al.
Summary: The study investigates the seismic vulnerability of bridge models with different pier structures, including hybrid configuration and post-tensioned segmental piers. By establishing fragility curves, the probability of failure for each bridge model is determined, aiding in evaluating the impact of different piers on the seismic vulnerability of the bridge.
Article
Engineering, Civil
Hafsa Farooq
Summary: In this study, a finite element analysis was used to analyze the seismic response of a retrofitted RC bridge, demonstrating the effectiveness of the retrofitting method. Evaluation of dynamic parameters indicated improvements in dynamic characteristics.
INNOVATIVE INFRASTRUCTURE SOLUTIONS
(2021)
Article
Engineering, Civil
Adriano Reggia et al.
ENGINEERING STRUCTURES
(2020)
Article
Construction & Building Technology
Daniele Malomo et al.
JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES
(2020)
Article
Engineering, Geological
Mariano Angelo Zanini et al.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2020)
Article
Engineering, Civil
Yutao Pang et al.
Article
Engineering, Civil
K. Kildashti et al.
ENGINEERING STRUCTURES
(2020)
Article
Engineering, Multidisciplinary
Wendel Michael Sebastian et al.
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2019)
Article
Construction & Building Technology
Gian Michele Calvi et al.
STRUCTURAL ENGINEERING INTERNATIONAL
(2019)
Article
Engineering, Civil
Gianluca Nestovito et al.
ENGINEERING STRUCTURES
(2016)
Article
Engineering, Civil
F. Soner Alici et al.
EARTHQUAKE SPECTRA
(2015)
Article
Engineering, Civil
Y. F. Duan et al.
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2011)
Article
Engineering, Civil
Fatemeh Jalayer et al.
JOURNAL OF EARTHQUAKE ENGINEERING
(2011)
Article
Engineering, Geological
Iunio Iervolino et al.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2011)
Article
Engineering, Geological
Iunio Iervolino et al.
BULLETIN OF EARTHQUAKE ENGINEERING
(2010)
Article
Engineering, Civil
Kazuhiko Kawashima et al.
JOURNAL OF EARTHQUAKE ENGINEERING
(2009)
Article
Construction & Building Technology
K Wardhana et al.
JOURNAL OF PERFORMANCE OF CONSTRUCTED FACILITIES
(2003)
Article
Engineering, Civil
AK Chopra et al.
EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
(2002)
