Seismic Isolation for Protecting Historical Buildings: A Case Study

D’Amato, Michele; Gigliotti, Rosario; Laguardia, Raffaele

doi:10.3389/fbuil.2019.00087

Cited by 18 publications

(11 citation statements)

References 25 publications

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“…Extending the natural period of the structure from the prevailing frequency of ground movements is based on the principle of significantly reducing the acceleration transmitted to the superstructure. The separation of the superstructure and the foundation via sliding and flexible systems placed on the base forms the basis of seismic isolation [17][18][19][20][21][22][23]. This application gives the building a base period much higher than the fixed-base duration.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Usta

2021

Buildings

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The earthquake performance of structures with seismic isolation is much better than that of fixed-base structures, and the application of seismic insulation ensures both structural integrity and the protection of the items present in the structures. The base-isolation system is used to extend the fundamental period of vibration of the structure and to obtain higher value from base-isolated structures relative to the fixed-base structure. Historical masonry mosques could be strengthened using a base-isolation technique. In this study, a historical masonry mosque was organized and modelled using SAP2000 software. Nonlinear Time History analyses were carried out for the historical masonry structure, firstly for the fixed-base mosque and secondly for the base-isolated mosque with lead rubber bearing (LRB). The use of a base-isolator system caused an increase in the historical mosque’s period, reducing the displacements, acceleration, and force applied on the mosque and the resulting structural deformation; the results of the analysis indicate a significant improvement in the seismic behavior. The modelling results show that such historical masonry buildings (especially those with high and delicate minarets) can be vulnerable to major earthquakes, and it may be useful to examine strengthening strategies for these buildings.

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Section: Introductionmentioning

confidence: 99%

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Usta

2021

Buildings

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“…In order to reuse this important Heritage, the seismic update is mandatory while a more functional architectonic project is attended. erefore, the structural analysis involves many action steps: geometrical and structural survey (diagnostic), global analysis ante-operam, choice of the strengthening interventions, design, global analysis post-operam and monitoring according to the ISCARSAH's Recommendations and many other cases study, [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A Multiplex Conversion of a Historical Cinema

Cascardi

Verre

Sportillo

et al. 2022

Advances in Civil Engineering

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The cultural building Heritage is a valuable trace of the past social life in a city. One peculiar typology of building is the theatre or, more recently, the cinema. Within this indoor space, the community of people actively live an emotional feeling over the time causing memories linked to not only the show itself, but also to the place. Furthermore, cinemas are often located in city centers where buildings are historical-oriented form the architectural point of view and, for this reason, their added-value needs to be recognized. Currently, the modernization and the improvement of old cinemas is becoming an interesting topic in the field of civil engineering. In order to empathize this aspect, the structural strengthening for a multiplex conversion of an historical cinema is herein reported. The studied structure required a seismic joint (separating the masonry to the reinforced concrete structural bodies) and a severe strengthening of a very long span beam due to a relevant overloading (in seismic loads combination) caused by the new architectonical project. The numerical simulations demonstrated the validity of two bending strengthening systems (i.e. Fiber Reinforced Polymer-plate and Beton Plaquè) in terms of both load bearing capacity and maximum deflection. This overview is a part of a larger study in the way of a global structural interventions which will also involve the masonry members.

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“…A seismically isolated structure is a structure in which an isolation layer is installed at the foundation level or at an intermediate story level of the building (AIJ, 2016;Charleson and Guisasola, 2017). Seismic isolation has been applied to newly constructed buildings and in the seismic rehabilitation of existing buildings in earthquake-prone countries (e.g., Seki et al, 2000;Kashima et al, 2008;Cardone and Gesualdi, 2014;D'Amato et al, 2019;Terenzi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Influence of the Angle of Seismic Incidence of Long-Period Pulse-like Ground Motion on an Irregular Base-Isolated Building

Fujii¹

2022

Preprint

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In general, isolators and dampers used in seismically isolated buildings are designed to be isotropic in any horizontal direction. However, in the case of buildings with plan irregularities, their nonlinear responses depend on the direction of seismic loading. To discuss the influence of the angle of seismic incidence (ASI) on the nonlinear response of irregular building structures, it is important to define the angle of the critical axis of the horizontal ground motion. One possible choice is the “principal axis of ground motion” proposed by Arias (1970). However, because this principal axis is independent of the natural period of a structure, it could be complicated to use for seismically isolated structures with long natural periods. In this study, the influence of the ASI of long-period pulse-like seismic input on an irregular base-isolated building is investigated. First, the angle of the principal axis of ground motion is defined in terms of the cumulative energy input. Then, a nonlinear time-history analysis of a five-story irregular base-isolated building is performed using 10 long-period pulse-like ground motion records considering various ASIs. The results show that, compared with the principal axis of ground motion proposed by Arias, defining the principal axis of ground motion in terms of the cumulative energy input is more suitable for discussions concerning the influence of the ASI on the response of an irregular base-isolated building.

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Seismic Isolation for Protecting Historical Buildings: A Case Study

Cited by 18 publications

References 25 publications

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

Investigation of a Base-Isolator System’s Effects on the Seismic Behavior of a Historical Structure

A Multiplex Conversion of a Historical Cinema

Influence of the Angle of Seismic Incidence of Long-Period Pulse-like Ground Motion on an Irregular Base-Isolated Building

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