Assessment and Improvement of the Seismic Safety of the “<i>Bastione Farnesiano</i>”, in the Central Archeological Area of Rome: A Calculation Method Between Need to Preserve and Uncertainties

Miceli, Enrica Di; Monti, Giorgio; Bianco, Vincenzo; Filetici, Maria Grazia

doi:10.1080/15583058.2015.1124154

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…An integrated approach to disaster risk management of CH considers the possibilities of multiple hazards occurring in parallel or as result of interactions between various natural and human-induced events (Kappes et al, 2012;Alexander, 2001). With reference to the built environment, risk is commonly evaluated as a mathematical probability that is a function of three main factors: hazard, vulnerability and exposure (Alexander, 2001;Covello and Mumpower, 1985;Di Miceli et al, 2017). The complexity of a disaster situation is influenced by the combination of those three measures: hazards on the site can be either natural or humaninduced; vulnerabilities are associated to the susceptibility to damaging and are categorised in physical, functional, socio-economic and political (Michalski and Pedersoli, 2016); exposure refers to all the human and material elements present in hazard zones that are thereby subject to potential losses.…”

Section: Methodsmentioning

confidence: 99%

A risk-reduction framework for urban cultural heritage: a comparative study on Italian historic centres

Giuliani

Paoli

Miceli³

2021

JCHMSD

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PurposeThe purpose of this paper is to present and validate a large-scale methodology for risk assessment and management in cultural heritage sites, taking into account their specific tangible or intangible values. Emphasis is given to historic centres that are key resources in building resilience to disasters but are also highly vulnerable due to several factors, such as the characteristics of the built environment, the community and social life, the lack of risk awareness and maintenance and finally the poor regulatory framework for their management and valorisation.Design/methodology/approachThe multi-step procedure starts from the assessment of the attributes of cultural heritage in order to identify priorities and address the analysis. Then, it evaluates the primary and secondary hazards in the area, the vulnerabilities and threats of the site and the impacts of the chain of events. Finally, it allows for calibrating a site-specific set of mitigation, preparedness, response and recovery measures.FindingsThe application to two case studies in the Italian peninsula, the historic centres of San Gimignano and Reggio Calabria, allows for identifying research gaps and practical opportunities towards the adoption of common guidelines for the selection of safety measures.Originality/valueBy providing a qualitative assessment of risks, the research points out the potentialities of the methodology in the disaster risk management of cultural heritage due to its capacity to be comprehensive and inclusive towards disciplines and professionals.

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Section: Methodsmentioning

confidence: 99%

A risk-reduction framework for urban cultural heritage: a comparative study on Italian historic centres

Giuliani

Paoli

Miceli³

2021

JCHMSD

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“…Therefore, the seismic assessment of archaeological structures can be carried out either through the study of equivalent static equilibrium of masonry walls [13,14], i.e., limit analysis, or by considering the rocking behavior as a response to a dynamic input on detailed numerical models, e.g., discrete element (DE) ones [15][16][17]. As DE modeling is better suited to block-based structures, where friction governs block-to-block contact [18], its widespread application to masonry structures may be not feasible, especially in the case of random rubble masonry walls [19].…”

Section: Introductionmentioning

confidence: 99%

Dynamic-Based Limit Analysis for Seismic Assessment of Free-Standing Walls of San Giovanni Church in Castelseprio UNESCO World Heritage Site

Sbrogiò,

Tavano,

Saretta

et al. 2024

Heritage

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Free-standing archaeological walls are significantly exposed to horizontal actions (e.g., earthquakes) as they lack connections provided by floors or roofs. In such cases, the dynamic response governs the activation of local mechanisms of collapse, determining the shape of the macroblocks and their position. Engineering models of archaeological walls are developed according to the results of extensive visual inspections and on-site testing, including modal identification for calibration purposes. A modal response spectrum analysis on the calibrated model identifies the zones where the tensile stress is exceeded, which are more likely to detach as rigid macroblocks and subsequently overturn due to the expected ground spectra. The macroblocks are then assessed according to limit analysis. The case studies are the north and the apse walls of the church of San Giovanni Evangelista in Castelseprio (Varese, Lombardy), a 5th century Longobard fortified settlement, a part of UNESCO World Heritage. The construction quality of the apse was poorer than the north wall, but the masonry of both is very compact thanks to the good mortar. The macroblocks are identified mostly in the upper crests of the walls, and their acceleration of activation is two to six times larger than the demand (considering the dynamic amplification that the structure applies to the ground motion); therefore, no particular intervention is needed. The proposed method will require additional calibration, e.g., through nonlinear dynamic analyses, and a more precise treatment of uncertainties in masonry mechanical properties to determine the shape of the macroblocks.

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“…Miceli et al [11] discussed the rehabilitation of a historical masonry retaining wall by evaluating its seismic safety. In the study, both material and deterioration analyses in such structures, as well as some structural features and difficulties encountered in determining the geometry necessary to comment on the safety of the structure, are discussed.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of the Geotechnical and Structural Strengthening of Quay Structures with a Case Study

Bildik

2023

Applied Sciences

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With developments in maritime trade, the need to increase port capacities has emerged. It is important that the reconstruction of such port structures be carried out without disrupting the activities of the existing port and without damaging the old structures. However, the reconstruction and strengthening of these structures require significant engineering work. Especially in the design of such structures, geotechnical and structural engineering theories and practices need to be considered together. The most important challenge in this type of engineering design is to ensure harmony in geotechnical and structural analyses. In this study, the strengthening of a port structure in Guinea is taken as a case study. First, the existing quay wall was evaluated, and then the geotechnical and structural design of the new structure to be built for capacity increase was discussed. A geotechnical design was made with the Plaxis 2D program, and the structural design was made with the Sap2000 program. The soil behavior was analyzed nonlinearly with the Plaxis program and was modeled with the same accuracy as the Sap2000 program. In addition, pile capacities were confirmed by loading tests performed on the piles. The results show that complex hybrid solutions consisting of reinforced and unreinforced piles can be modeled with the finite element method. As seen from this case study, the capacities of existing port structures can be safely increased, provided that necessary geotechnical precautions are taken.

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Assessment and Improvement of the Seismic Safety of the “Bastione Farnesiano”, in the Central Archeological Area of Rome: A Calculation Method Between Need to Preserve and Uncertainties

Cited by 7 publications

References 15 publications

A risk-reduction framework for urban cultural heritage: a comparative study on Italian historic centres

A risk-reduction framework for urban cultural heritage: a comparative study on Italian historic centres

Dynamic-Based Limit Analysis for Seismic Assessment of Free-Standing Walls of San Giovanni Church in Castelseprio UNESCO World Heritage Site

Numerical Modeling of the Geotechnical and Structural Strengthening of Quay Structures with a Case Study

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