Dynamic Identification for Representative Building Typologies: Three Case Studies from Bucharest Area

Tiganescu, Alexandru; Grecu, Bogdan; Craifaleanu, Iolanda‐Gabriela

doi:10.28991/cej-2020-03091480

Cited by 13 publications

(8 citation statements)

References 19 publications

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“…The second building, located in Magurele city, is the headquarters of the Institute of Atomic Physics (IAP). It is an office building retrofitted after the Vrancea 1977 earthquake and instrumented with three accelerometers installed in the basement (TURN1), sixth floor (TURN2), and 10th floor (TURN3; see Tiganescu et al, 2019Tiganescu et al, , 2020. The third instrumented building is Unirea Hotel in Focsani, where stations are deployed in the basement of the structure (FOCR1), the fourth floor (FOCR2), and the eighth floor (FOCR3).…”

Section: Stations In Buildings Used For Structural Monitoringmentioning

confidence: 99%

“…Recent studies have shown a significant reduction of the noise level due to the restrictions imposed by authorities at local, regional, and national scales to prevent the spread of COVID-19. The noise reduction was noticed at stations located inside cities (e.g., Tokyo, Barcelona, Milano, Verona, Florence, Catania, Auckland, Querétaro; see Yabe et al, 2020;Diaz et al, 2021;Poli et al, 2020;Cannata et al, 2021;van Wijk et al, 2021;De Plaen et al, 2021), but it has also been reported at stations far from populated areas (e.g., the Black Forest; see Lecocq et al, 2020a). The observed drop in the seismic noise is not uniform, it varies from one place to another depending on the characteristics of the noise sources in the area and the way they were affected by the different societal responses to activity restrictions (Xiao et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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The effect of 2020 COVID-19 lockdown measures on seismic noise recorded in Romania

et al. 2021

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Abstract. After the World Health Organization declared COVID-19 a pandemic in March 2020, Romania followed the example of many other countries and imposed a series of restrictive measures, including restricting people's mobility and closing social, cultural, and industrial activities to prevent the spread of the disease. In this study, we analyze continuous vertical component recordings from the stations of the Romanian Seismic Network – one of the largest networks in Europe, consisting of 148 stations – to explore the seismic noise variation associated with the reduced human mobility and activity due to the Romanian measures against COVID-19 in detail. We focused our investigation on four frequency bands – 2–8, 4–14, 15–25 and 25–40 Hz – and found that the largest reductions in seismic noise associated with the lockdown correspond to the high-frequency range of 15–40 Hz. We found that all the stations with large reductions in seismic noise (>∼ 40 %) are located inside and near schools or in buildings, indicating that at these frequencies the drop is related to the drastic reduction of human activity in these edifices. In the lower-frequency range (2–8 and 4–14 Hz) the variability of the noise reduction among the stations is lower than in the high-frequency range, corresponding to about 35 % on average. This drop is due to reduced traffic during the lockdown, as most of the stations showing such changes in seismic noise in these bands are located within cities and near main or side streets. In addition to the noise reduction observed at stations located in populated areas, we also found seismic noise lockdown-related changes at several stations located far from urban areas, with movement of people in the vicinity of the station explaining the noise reductions.

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Section: Stations In Buildings Used For Structural Monitoringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of 2020 COVID-19 lockdown measures on seismic noise recorded in Romania

et al. 2021

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“…e present research aimed to study how strain and loading manner would affect characteristics related seismic resistance of the under study plate panel. Experiments suggest how behavior of shear panels built with LYP steel changes under different loading speeds and incremental displacements [18].…”

Section: Seismic Characteristics Of Lyp Sswsmentioning

confidence: 99%

Dynamic Performance Evaluation of Concrete Building Using Low‐Yield Point Steel Shear Panels

Marzban¹,

Nesheli

2021

Shock and Vibration

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Steel shear walls are a novel component in the field of construction. It has been of special interest to structural engineers for the reinforcement of steel buildings for the recent decades. Its unique features have attracted more attention, and its features are economical, easy to implement, light weight compared to similar systems, high ductility, fast installation, high energy absorption, and a significant reduction in residual stress in the structure. All the reasons made researchers think about studying its use in the repair of concrete buildings. Because this system has a low weight, it does not add extra load to the structure, and even with its connections, it strengthens the beams and columns around it. The design of this system in concrete buildings does not seem to be economical except in the case of restoration. In this paper, preliminary explanations of the steel shear wall are presented for more familiarity, and in the following sections, the study of reinforcement and repair of concrete structures will be studied and its difference with the low-yield point will be considered. Finally, the test results will be reviewed. The results of this study show that LYP steel shear panels cause a lot of energy loss and absorption, which is very useful in the safety of buildings exposed to severe earthquakes.

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“…We live in a world in which the branding culture is obviously seen in all human behaviors and places [25]. City branding is an issue that governments pay special attention to it now.…”

Section: Introductionmentioning

confidence: 99%

Explain the Components of Urban Branding, Emphasizing the Dimensions of Tourism

Vahabian

Ghanbari

Nori

et al. 2021

Shock and Vibration

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Currently, change in cities is advancing due to technological advances, information floods, increasing awareness, and raising living standards. Although the development of a city depends on the activation of urban marketing, an important and well-known city stands out as a brand. One of the strategies of urban management in order to progress in the competitive world market is to plan for sustainable urban branding for the city, which introducing the capabilities of the city, the most important factors in achieving economic benefits of urban branding are tourism and physical space. The metropolis of Hamadan has been selected for this purpose, including urban tourism destinations with historical and touristic species and the capital of Iran’s history and civilization. The measurement tool in this study is a questionnaire that will be designed based on the conceptual framework of the research as well as related studies. For this purpose, the components and indicators of urban branding have been identified with emphasis on social, economic, cultural, and physical dimensions and have been used with the opinion of 30 urban experts and specialists and using SPSS25 software analysis at a significant level. It can be concluded that according to the respondents, these variables have a great impact on branding the metropolis of Hamadan.

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Dynamic Identification for Representative Building Typologies: Three Case Studies from Bucharest Area

Cited by 13 publications

References 19 publications

The effect of 2020 COVID-19 lockdown measures on seismic noise recorded in Romania

The effect of 2020 COVID-19 lockdown measures on seismic noise recorded in Romania

Dynamic Performance Evaluation of Concrete Building Using Low‐Yield Point Steel Shear Panels

Explain the Components of Urban Branding, Emphasizing the Dimensions of Tourism

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