Base Isolation and Translation of a Strategic Building Under a Preservation Order

Monti, Giorgio; Vailati, Marco; Marnetto, Roberto

doi:10.1007/978-3-319-21753-6_16

Cited by 4 publications

(2 citation statements)

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“…Such phenomenon may also yield significant change of the dynamic characteristics of the colliding buildings and structural damages. The necessary dimension of these technical joints was estimated to be equal to at least 100 mm on each side of the central building [30].…”

Section: Structural Weaknessesmentioning

confidence: 99%

Integrated Solution-Base Isolation and Repositioning-for the Seismic Rehabilitation of a Preserved Strategic Building

2021

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This paper deals with the design of the seismic rehabilitation of a case-study building located in Florence, Italy. The particular reinforced concrete building hosts an important operational center of the main company that manages the Italian highway network. It is composed of the juxtaposition of three reinforced concrete edifices standing out from a common basement. The design of the interventions for the seismic rehabilitation of this case study posed different challenges, some even in contrast with each other. The main design challenge was to reach the seismic retrofitting, due to the strategic role of the activities hosted herein, safeguarding as much as possible the peculiarity of the architectural elements. Moreover, the design was made harder by the presence of existing thermal joints between adjacent edifices which were inadequate to prevent the latter from pounding upon each other during an earthquake. This outcome yielded the need to intervene by enlarging the gap between the adjacent buildings. This latter intervention was in stark contrast with the explicit request of the client to bring the least possible disturbance to the strategic activities carried out within it; in fact, the joints are crossed by optical fibers and other technological systems which can be damaged easily. The need to fulfill all these design constraints brought the development of an original design strategy based on the employment of base-isolation in a rather unusual configuration. The details of the design procedure, along with the innovative aspects and the designed devices, are presented. With the objective to refine the adopted strategy in view of its possible repeatability by colleague engineers, the paper also presents a fair discussion of every aspect with regards to both the design and the realization phases. Possible ideas for new research and developments are also highlighted.

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Section: Structural Weaknessesmentioning

confidence: 99%

Integrated Solution-Base Isolation and Repositioning-for the Seismic Rehabilitation of a Preserved Strategic Building

2021

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“…Therefore, the safety of some facilities due to the increased relative displacement must be evaluated. In particular, the crossover piping system that connects isolated and nonisolated structures must be able to encounter large relative displacements [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Seismic Fragility Evaluation of Main Steam Piping of Isolated APR1400 NPP Considering the Actual Failure Mode

Jeon

Kim²,

Yun³

et al. 2022

Sustainability

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An isolation system installed in a nuclear power plant (NPP) could increase seismic safety during seismic events. On the other hand, a more significant relative displacement may occur due to the isolation system. The seismic risk could be increased in the case of an interface piping system that connects isolated and nonisolated structures. Therefore, it is necessary to consider the piping systems when evaluating the safety of isolated-NPPs. This study performed seismic fragility analysis with isolated APR1400 nuclear power plants with the main steam piping. The main steam piping is the interface pipe connecting the isolated auxiliary building and the turbine building. The failure mode for seismic fragility analysis was defined as cracks caused by leakage. The experimental and numerical analysis results quantified the leak-through crack point as a damage index. The seismic fragility curves are suggested based on peak ground acceleration and the relative displacement between the isolated and nonisolated buildings.

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Earthquake-Safe and Energy-Efficient Infill Panels for Modern Buildings

Vailati

Monti

Gangi

2017

Earthquake Engineering and Structural Dynamics in Memory of Ragnar Sigbjörnsson

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Base Isolation and Translation of a Strategic Building Under a Preservation Order

Cited by 4 publications

References 0 publications

Integrated Solution-Base Isolation and Repositioning-for the Seismic Rehabilitation of a Preserved Strategic Building

Integrated Solution-Base Isolation and Repositioning-for the Seismic Rehabilitation of a Preserved Strategic Building

Seismic Fragility Evaluation of Main Steam Piping of Isolated APR1400 NPP Considering the Actual Failure Mode

Earthquake-Safe and Energy-Efficient Infill Panels for Modern Buildings

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