On the Seismic Resilience

Sofronie, Ramiro

doi:10.17265/2328-2193/2019.04.003

JGRE

2019

DOI: 10.17265/2328-2193/2019.04.003

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On the Seismic Resilience

Ramiro Sofronie¹

Abstract: The paper deals with the self-defending capacity of buildings and structures against earthquakes. The idea of this concept comes from Hooke's Law of elasticity published in 1678. The original deterministic concept was converted, with the aid of reliability analysis, into a probalistic form. In this way seismic resilience covers a larger field of random phenomena and becomes directly involved in more engineering applications.

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Seismic Response of Three-Lobed Shape

Irimia

2021

Bulletin of the Polytechnic Institute of Iași. Construction. Architecture Section

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The paper deals with the three-lobed churches, the most representative creations of the ecclesiastic and monumental architecture preserved in the Carpathian-Danubian-Pontic area. Beginning with the fourteenth century, in Moldavia and Wallachia, the old wooden churches, often threatened by the fire, were replaced with stone or brick masonry ones. Unfortunately, strong and enduring earthquakes occur in this area. The stone and brick masonry, with clay or lime mortars, used for three-lobed churches, including their foundations and steeples, were often severely damaged by earthquakes. According to a legend, in the case of the Church of Arges Monastery, usually the damages occurred during the nights. To save the church, by the virtue of an old myth, the Manole Master has immolated his wife into one of the pronaos walls. By that occasion, the whole pronaos was enlarged and the church was no longer damaged. The later research has shown that by reshaping the pronaos, the relative positions of the weight center and the stiffness center have been reversed. Since then, that beautiful church, during its long service of 503 years, was never damaged again by earthquakes. The same happy fate has been experienced by the subsequent three-lobed churches which adopted the same enlarged pronaos.

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Seismic Response of Three-Lobed Shape

Irimia

2021

Bulletin of the Polytechnic Institute of Iași. Construction. Architecture Section

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On the Seismic Resilience of Interwar Buildings

Gruia

2022

Bulletin of the Polytechnic Institute of Iași. Construction. Architecture Section

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This paper deals with multi-story buildings erected mostly in interwar period in seismic areas and designed for gravitational actions only. The typical structural system is reinforced concrete frames and masonry infills. A usual multi-story interwar structure was chosen in order to evaluate its seismic resilience. There were made in situ measurements for its dynamic characteristics. The numerical model was calibrated according to in situ measurements. There were proposed two methods of increasing the seismic resilience. First method consists in improving the resilience by reshaping without reinforcing. The second method is additional to the first. It consists in reinforcing infilled frames in order to take over seismic loads.

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On the Seismic Resilience

Cited by 2 publications

References 0 publications

Seismic Response of Three-Lobed Shape

Seismic Response of Three-Lobed Shape

On the Seismic Resilience of Interwar Buildings

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