Local site amplification maps for the volcanic area of Trecastagni, south-eastern Sicily (Italy)

Cavallaro, Antonio; Fiamingo, Angela; Grasso, Salvatore; Massimino, Maria Rossella; Sammito, Maria Stella Vanessa

doi:10.1007/s10518-023-01834-4

Cited by 9 publications

(4 citation statements)

References 55 publications

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“…Eastern Sicily (Italy) has suffered numerous catastrophic earthquakes in the past (1169,1693,1783,1818,1908) [5]. Moreover, this area is prone to the additional risk of a damaging tsunami, as well as, liquefaction phenomena [17].…”

Section: Seismicity Of the Areamentioning

confidence: 99%

“…Numerical analyses were performed using a deterministic approach. Although the application of a probabilistic approach can provide valuable help in selecting sets of accelerograms [5], a deterministic approach is preferred in areas with moderate to high seismic risk [10].…”

Section: Selected Seismic Inputmentioning

confidence: 99%

“…The first fundamental aspect of assessing SSI is the analysis of all available geo-physical and dynamic data to define the subsoil model and the geotechnical characterization of the area under study. The geometry and the geophysical and dynamic properties of the superficial layers strongly modify the ground motion in terms of amplitude, duration and wavefield composition [5]. Therefore, for retrofitting and/or improving an existing structure, it is important evaluate the modified ground motion at the surface on which the building is situated; this is the free field (FF) condition [6].…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear 3D Finite Element Analysis of a Coupled Soil–Structure System by a Deterministic Approach

Castelli,

Grasso,

Lentini

et al. 2024

Geosciences

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Fully coupled soil–structure analyses were performed for a building of strategic importance located in the city of Messina (Sicily, Italy). The structure was built after the destructive 1908 earthquake, also known as the ‘Messina and Reggio Calabria earthquake’, which caused severe ground shaking. A parametric study considering three seismograms of this earthquake was performed. Deep in situ and laboratory investigations allowed the definition of the geometric and geotechnical model of the subsoil. Numerical analyses were performed with PLAXIS3D finite element software (Version 21.01.00.479). The Hardening Soil model with small-strain stiffness was accurately calibrated using laboratory and field data. The dynamic response was investigated in terms of accelerations, response spectra, amplification functions, displacements and stress–strain hysteretic loops. The findings show that many aspects must be investigated for the retrofitting of buildings with shallow foundation in areas characterized by a medium to high level of seismic risk: (i) a key role is played by an accurate investigation of the soil; taking into account the specific conditions of the soil, it was possible to investigate its filtering effects; (ii) the dynamic response of the fully-coupled soil–structure system deviates from the free field-site response analysis; (iii) the results reveal the importance of considering the soil nonlinearity in seismic soil–structure interaction problems.

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Section: Seismicity Of the Areamentioning

confidence: 99%

Section: Selected Seismic Inputmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nonlinear 3D Finite Element Analysis of a Coupled Soil–Structure System by a Deterministic Approach

Castelli,

Grasso,

Lentini

et al. 2024

Geosciences

Self Cite

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“…Damage assessments at this stage should be carried out as quickly and practically as possible. In this work, observational evaluations were made [1][2][3][4][5]. Each of these and similar studies carried out or to be carried out after an earthquake is considered a case study and can significantly contribute to both practice and academia.…”

Section: Introductionmentioning

confidence: 99%

Field Reconnaissance and Earthquake Vulnerability of the RC Buildings in Adıyaman during 2023 Türkiye Earthquakes

Işık,

Avcil,

İzol

et al. 2024

Applied Sciences

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The 6th February 2023 Pazarcık and Elbistan earthquakes (Mw = 7.7 and Mw = 7.6) caused great destruction in many cities and were the disaster of the century for Türkiye. The greatest destruction was caused in the provinces of Hatay, Kahramanmaraş, and Adıyaman during these earthquakes, which were independent of each other and occurred on the same day. Information about earthquakes and strong ground motion records is given within the scope of this study. Reinforced concrete (RC) structures which constitute a large part of the urban building stock in the earthquake region were exposed to structural damage at different levels. The structural damage in the RC structures in the city center, Gölbaşı, and Kahta districts of the province of Adıyaman was evaluated within the scope of earthquake and civil engineering after field investigations. Insufficient RC, low-strength concrete reinforcement problems, RC frame failure, heavy overhang, short columns, soft story, and pounding effect are the main causes of the earthquake damage. The presence of these factors that reduce the earthquake resistance of RC structures increased the damage level. In addition, the fact that the earthquakes occurred nine hours apart and the continuation of aftershocks during that period negatively affected the damage levels. It has been observed that structures that receive the necessary engineering services during the construction and project phases ensure the safety of life and property, even if the structure is slightly damaged. In this study, we also tried to reveal whether the target displacements were satisfactorily represented by numerical analysis for a sample RC structure.

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Post-earthquake spatiotemporal evolution characteristics of typical landslide sources in the Jiuzhaigou meizoseismal area

Huang,

Hu,

Cai

et al. 2024

Bull Eng Geol Environ

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Local site amplification maps for the volcanic area of Trecastagni, south-eastern Sicily (Italy)

Cited by 9 publications

References 55 publications

Nonlinear 3D Finite Element Analysis of a Coupled Soil–Structure System by a Deterministic Approach

Nonlinear 3D Finite Element Analysis of a Coupled Soil–Structure System by a Deterministic Approach

Field Reconnaissance and Earthquake Vulnerability of the RC Buildings in Adıyaman during 2023 Türkiye Earthquakes

Post-earthquake spatiotemporal evolution characteristics of typical landslide sources in the Jiuzhaigou meizoseismal area

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