Some Remarks Regarding Seismic Vulnerability for Orthodox Churches

Budescu, Mihai; Soveja, Lucian; Olteanu, Ioana

doi:10.1007/978-3-319-29844-3_29

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…Figure 5a presents a statistic regarding the construction period of the buildings, having as reference the year 2006, when a seismic code considered the European norm was implemented in Romania. In this code, the ductility concept was widely discussed, along with the necessary measures that should be taken into consideration in order to reduce the earthquake effect, considering the lessons learned from previous events at the national and international level [41]. 66% of the investigated houses were built before 2006 without following any seismic specifications.…”

Section: Seismic Hazardmentioning

confidence: 99%

Sustainable Approach of a Multi-Hazard Risk Assessment Using GIS Customized for Ungheni Areal Situated in the Metropolitan Area of Iasi

Olteanu,

Crenganiș,

Diac

et al. 2024

Sustainability

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Hazards associated with natural factors annually result in significant human and economic losses. An accurate and up-to-date assessment of various hazards can limit their impact and bring benefits both in the modeling phase and mostly in the risk mitigation plan stage. The article presents the results of a multi-hazard analysis that considers floods, landslides, and earthquakes carried out in the Ungheni area, located in the eastern part of Romania at the border with the Republic of Moldova. The research focused on producing harmonized hazard maps for the two countries since the area spreads jointly between the two countries. Common geospatial data were used for modeling and risk assessment, such as airborne laser scanners, global navigation satellite systems, rasters, and vectors from analog and digital sources. Among hazards, the flood maps for the studied area, Ungheni, were designed using 2D hydraulic modeling in HECRAS software (version 6.3.1); the landslide maps considered the ArcGis platform following Romanian methodology; and the seismic analysis collected onsite measurements on the built environment. The shared use of geospatial data in modeling the three hazards led to high accuracy of the results and determined their spatial homogeneity. It was observed that only two areas, Mînzătești and Coada Stîncii villages from Ungheni Areal, are highly vulnerable to all three hazards. The research findings, along with mitigation recommendations, have contributed to the development of a more precise action plan for natural hazards events by local authorities and decision-makers.

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Section: Seismic Hazardmentioning

confidence: 99%

Sustainable Approach of a Multi-Hazard Risk Assessment Using GIS Customized for Ungheni Areal Situated in the Metropolitan Area of Iasi

Olteanu,

Crenganiș,

Diac

et al. 2024

Sustainability

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“…The dimensions of the main structural elements are: 25x45 cmxcm beams, 35x45 cmxcm columns and slabs of 13 cm thickness. In case of the seismic force, the literature review showed that the seismic norms had improved along the building lifecycle [5,7]. If initially the building was designed after a code which considered the seismic force a percentage from the building weight, the today evaluation is performed according to P100-2013, which is based on Eurocode 8, improved by the recent research results in the field [1,3,6].…”

mentioning

confidence: 99%

Case study on reinforced concrete frame structure adaptability

Olteanu,

Anton,

Țăranu

2024

IOP Conf. Ser.: Mater. Sci. Eng.

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The limited space to build from scratch significantly increased the need to rehabilitate for the re-functionalization of different buildings. The reinforced concrete frame structure is easily adaptable and has several advantages in this direction. When changing the function of a building an evaluation of the existing damages is done as well as a numerical simulation with the new loads. The article presents the case of changing a neighbourhood clinic into a kindergarten. The seismic risk coefficients are computed (R1, R2 and R3) in order to establish the seismic risk class for the existing building and also an evaluation of the damage state. A comparison between the seismic force computed when the building was designed and according to current codes is performed. In order to identify the failure mechanism pushover analysis was performed in both X and Y direction.

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Determination of Internal Forces Using Artificial Neural Networks

Pandelea

Budescu

Soveja

et al. 2017

AEF

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Design and verification of engineering structures require knowing the numerical values of sectional internal forces as close to reality, considering that the intervention construction works are correlated with these values.Most of the computer programs are working with finite element method, which was designed by engineers and founded by mathematicians. After running the computer program, stresses and deformations maps are generated as results.Considering these results, using artificial neural networks, a computer program has been designed, which is able to determine internal forces of a section, namely axial force, shear force and bending moment.Neural network input parameters consist of color maps resulted from numerical modeling, numerical values of the normal and tangential tensions and dimensions of the structural element.This procedure is particularly useful when using finite element programs that do not have the ability to determine sectional internal forces.

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Some Remarks Regarding Seismic Vulnerability for Orthodox Churches

Cited by 3 publications

References 5 publications

Sustainable Approach of a Multi-Hazard Risk Assessment Using GIS Customized for Ungheni Areal Situated in the Metropolitan Area of Iasi

Sustainable Approach of a Multi-Hazard Risk Assessment Using GIS Customized for Ungheni Areal Situated in the Metropolitan Area of Iasi

Case study on reinforced concrete frame structure adaptability

Determination of Internal Forces Using Artificial Neural Networks

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