Mutual seismic assessment and isolation of different art objects

Sorace, Stefano; Terenzi, Gloria; Bitossi, Camilla; Mori, Elena

doi:10.1016/j.soildyn.2016.03.014

Cited by 20 publications

(7 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the wake of the above-mentioned previous studies by the authors concerning the seismic retrofit of irregular structures by means of base isolation [5][6][7][8][9], DCSS devices are adopted for the intervention on the case study building. Indeed, for this type of sliders, the response of the isolation system results to be independent of the characteristics of the superstructure [5,[24][25][26][27][28][29].…”

Section: Base Isolation Retrofit Hypothesismentioning

confidence: 99%

“…In order to substantially improve the seismic performance of the structure without altering its architectural appearance, a base isolation retrofit hypothesis is developed here, as a preliminary study to a possible application on the building to be carried out in the near future. Due to the irregularities in plan and along the height of the building, double concave sliding surface (DCSS) devices are selected for the isolation system, which are similar to the ones adopted in previous retrofit studies carried out by the authors on ordinary R/C buildings [5][6][7][8], as well as in the design of new R/C ones [9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Seismic Retrofit of a Reinforced Concrete Building of Architectural Interest

et al. 2020

Self Cite

View full text Add to dashboard Cite

Modern heritage buildings designed in the 1950s and 1960s often feature poor seismic performance capacities and may require significant retrofit interventions. A representative case study in Florence, i.e., the edifice housing the Automobile Club Headquarters, is examined here. The building was designed in 1959 with an articulated reinforced concrete structure and presents some enterprising solutions for the time, including suspended floors accommodating large glazed curtain wall façades in the main halls. The original design documentation was collected with accurate record research and checked with detailed on-site surveys. Based on the information gained on the structural system by this preliminary investigation, a time-history assessment analysis was carried out. Remarkable strength deficiencies in most members and severe pounding conditions between the two constituting wings, which are separated by a narrow technical gap, were found. As a result, a base isolation retrofit hypothesis is proposed in order to improve the seismic response capacities of the building without altering its elegant architectural appearance, being characterized by large free internal spaces and well-balanced proportions of the main structural members. A substantial performance improvement is obtained thanks to this rehabilitation strategy, as assessed by the achievement of non-pounding response conditions and safe stress states for all members up to the maximum considered normative earthquake level. Furthermore, the very low peak inter-storey drifts evaluated in retrofitted conditions help in preventing damage to the glazed façades and the remaining drift-sensitive non-structural components.

show abstract

Section: Base Isolation Retrofit Hypothesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Seismic Retrofit of a Reinforced Concrete Building of Architectural Interest

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The finite element analyses with newly proposed constitutive laws and parameters were implemented to validate the efficiency of this strategy. After two years, Sorace et al [26] placed the same double-friction pendulum bearings at the base of the bearing floor where a semicircular marble column and an equestrian bronze sculpture are located. This strategy precludes any modification of foundations and pedestals of the objects, as well as easily moving them in case of future relocations, which significantly cuts the cost of the interventions.…”

Section: Introductionmentioning

confidence: 99%

Study on a Novel Variable-Frequency Rolling Pendulum Bearing

Pang

Tao

2022

Buildings

View full text Add to dashboard Cite

Seismic isolation is a technique that has been widely used around the world to decouple the superstructure from the ground motions during earthquakes. However, the attention of seismic isolation is mostly focused on the protection of the building structures. Acceleration-sensitive devices or equipment, which are in desperate need of seismic protection, are still not fully emphasized. Meanwhile, the stiffness and frequencies of the conventional rolling- and sliding-type isolation bearings demonstrate an upward trend as the isolation layer displacement increases, which may bring self-centering and resonance issues. Thus, a novel variable-frequency rolling pendulum bearing is developed for the protection of acceleration-sensitive equipment. The rolling-type isolation bearing is selected to enhance the self-centering capacity, and additional viscous dampers are incorporated to improve the system damping. Moreover, the theoretical formulas of several typical variable-frequency rolling pendulum bearings are derived and presented to figure out the dynamic characterization of the device. The isolation efficiency of the proposed device under different parameters is also validated using shake table tests. Test results demonstrate that the newly proposed devices show excellent isolation performance at reducing both acceleration and displacement responses. Finally, the numerical model of this isolation system is proposed in detail. The simulated results, including relative acceleration responses, relative displacement responses and movement locus of the upper plates, are consistent with test results, which demonstrates this simplified model could be used for further studies.

show abstract

“…Sorace and Terenzi (2015) and Sorace et al. (2016) focused on museums with floor isolation systems. The double‐friction pendulum isolators were used for the base‐isolated floor, whereas the museum contents were modeled with a finite element approach.…”

Section: Introductionmentioning

confidence: 99%

“…In the former case, the base isolation was applied to the building, whereas in the latter, the base isolation was implemented on the base of the statue. Sorace and Terenzi (2015) and Sorace et al (2016) focused on museums with floor isolation systems. The doublefriction pendulum isolators were used for the base-isolated floor, whereas the museum contents were modeled with a finite element approach.…”

Section: Introductionmentioning

confidence: 99%

A procedure to model and design elastomeric‐based isolation systems for the seismic protection of rocking art objects

Pellecchia

Feudo

Vaiana

et al. 2021

Computer aided Civil Eng

View full text Add to dashboard Cite

This paper investigates the rocking behavior of rigid bodies seismically protected by means of lead rubber bearings and high damping rubber bearings, which are the most popular kinds of elastomeric isolators in the market. The complex nonlinear force-displacement relationship displayed by such devices is predicted by a phenomenological model based on a small set of parameters having a clear mechanical meaning. The algebraic nature of the proposed hysteretic model makes it suitable for a design procedure, using an energy-based approach, that allows one to obtain the hysteretic model parameters on the basis of the mass and the isolation period. Overturning spectra are evaluated and discussed to illustrate the effect of the isolation devices on the rigid bodies' rocking behavior. Furthermore, nonlinear time history analyses associated with six real earthquakes are carried out on six of Michelangelo's sculptures, located in the Galleria dei Prigioni at the Accademia Gallery of Florence, in order to examine their actual behavior under real strong ground motions.

show abstract

Mutual seismic assessment and isolation of different art objects

Cited by 20 publications

References 27 publications

Enhanced Seismic Retrofit of a Reinforced Concrete Building of Architectural Interest

Enhanced Seismic Retrofit of a Reinforced Concrete Building of Architectural Interest

Study on a Novel Variable-Frequency Rolling Pendulum Bearing

A procedure to model and design elastomeric‐based isolation systems for the seismic protection of rocking art objects

Contact Info

Product

Resources

About