Monitoring of Technical Condition of Buildings by Seismic Method

The research object is the natural resonance frequencies of the buildings of the Ural Branch of the Russian Academy of Sciences (UB RAS) located in Ekaterinburg and their distribution at observation points. The method of spectral ratios (HVSR or the Nakamura method), which allows hidden construction...

Full description

Saved in:
Bibliographic Details
Main Authors: Alena A. Kurdanova, Mikhail N. Voskresenskiy, Elena A. Kosorotova, Gennadiy I. Parygin
Format: Article
Language:English
Published: Peoples’ Friendship University of Russia (RUDN University) 2024-12-01
Series:Structural Mechanics of Engineering Constructions and Buildings
Subjects:
Online Access:https://journals.rudn.ru/structural-mechanics/article/viewFile/42703/24462
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832542221876854784
author Alena A. Kurdanova
Mikhail N. Voskresenskiy
Elena A. Kosorotova
Gennadiy I. Parygin
author_facet Alena A. Kurdanova
Mikhail N. Voskresenskiy
Elena A. Kosorotova
Gennadiy I. Parygin
author_sort Alena A. Kurdanova
collection DOAJ
description The research object is the natural resonance frequencies of the buildings of the Ural Branch of the Russian Academy of Sciences (UB RAS) located in Ekaterinburg and their distribution at observation points. The method of spectral ratios (HVSR or the Nakamura method), which allows hidden construction defects to be identified, is applied to analyze the resonance characteristics. Periodic monitoring of technical condition allows to calculate and evaluate changes in dynamic characteristics over time. Equal values of the amplitude extrema of the spectral ratio curve and uniform distribution of the values throughout the building indicate a normal operational state of the structure. The presence of abnormally high values at some points may be due to hidden defects and requires additional study. A method for calculating vulnerability coefficient is demonstrated. According to the results of annual monitoring (since 2017), the stable state of the Institute of Geophysics building of UB RAS is demonstrated, and a comparison with resonant frequencies obtained from the standard project (Institute of Geology Geochemistry of UB RAS) is presented. This article presents a method for assessing seismic stability by calculating horizontal acceleration ( ) at observation points. Acceleration is calculated at the maximum possible seismic event in the studied region (44 cm/s²). The possible maximum acceleration is calculated, taking into account the characteristics of the soil, for the observation point with the highest , = 30.6 cm/s², which corresponds to an earthquake intensity of 5.6.
format Article
id doaj-art-2361fd0968ab4e74ad8687e1f49b3ecb
institution Kabale University
issn 1815-5235
2587-8700
language English
publishDate 2024-12-01
publisher Peoples’ Friendship University of Russia (RUDN University)
record_format Article
series Structural Mechanics of Engineering Constructions and Buildings
spelling doaj-art-2361fd0968ab4e74ad8687e1f49b3ecb2025-02-04T07:23:34ZengPeoples’ Friendship University of Russia (RUDN University)Structural Mechanics of Engineering Constructions and Buildings1815-52352587-87002024-12-0120547949010.22363/1815-5235-2024-20-5-479-49021056Monitoring of Technical Condition of Buildings by Seismic MethodAlena A. Kurdanova0https://orcid.org/0000-0002-1582-8113Mikhail N. Voskresenskiy1https://orcid.org/0000-0002-6222-7265Elena A. Kosorotova2https://orcid.org/0000-0002-1445-7250Gennadiy I. Parygin3https://orcid.org/0009-0009-8401-3450Institute of Geophysics, Ural Branch of the Russian Academy of ScienceInstitute of Geophysics, Ural Branch of the Russian Academy of ScienceInstitute of Geophysics, Ural Branch of the Russian Academy of ScienceInstitute of Geophysics, Ural Branch of the Russian Academy of ScienceThe research object is the natural resonance frequencies of the buildings of the Ural Branch of the Russian Academy of Sciences (UB RAS) located in Ekaterinburg and their distribution at observation points. The method of spectral ratios (HVSR or the Nakamura method), which allows hidden construction defects to be identified, is applied to analyze the resonance characteristics. Periodic monitoring of technical condition allows to calculate and evaluate changes in dynamic characteristics over time. Equal values of the amplitude extrema of the spectral ratio curve and uniform distribution of the values throughout the building indicate a normal operational state of the structure. The presence of abnormally high values at some points may be due to hidden defects and requires additional study. A method for calculating vulnerability coefficient is demonstrated. According to the results of annual monitoring (since 2017), the stable state of the Institute of Geophysics building of UB RAS is demonstrated, and a comparison with resonant frequencies obtained from the standard project (Institute of Geology Geochemistry of UB RAS) is presented. This article presents a method for assessing seismic stability by calculating horizontal acceleration ( ) at observation points. Acceleration is calculated at the maximum possible seismic event in the studied region (44 cm/s²). The possible maximum acceleration is calculated, taking into account the characteristics of the soil, for the observation point with the highest , = 30.6 cm/s², which corresponds to an earthquake intensity of 5.6.https://journals.rudn.ru/structural-mechanics/article/viewFile/42703/24462seismic stabilityresonancespectrummonitoringbuildingvulnerabilityaccelerationnatural vibrationsnakamura’s method
spellingShingle Alena A. Kurdanova
Mikhail N. Voskresenskiy
Elena A. Kosorotova
Gennadiy I. Parygin
Monitoring of Technical Condition of Buildings by Seismic Method
Structural Mechanics of Engineering Constructions and Buildings
seismic stability
resonance
spectrum
monitoring
building
vulnerability
acceleration
natural vibrations
nakamura’s method
title Monitoring of Technical Condition of Buildings by Seismic Method
title_full Monitoring of Technical Condition of Buildings by Seismic Method
title_fullStr Monitoring of Technical Condition of Buildings by Seismic Method
title_full_unstemmed Monitoring of Technical Condition of Buildings by Seismic Method
title_short Monitoring of Technical Condition of Buildings by Seismic Method
title_sort monitoring of technical condition of buildings by seismic method
topic seismic stability
resonance
spectrum
monitoring
building
vulnerability
acceleration
natural vibrations
nakamura’s method
url https://journals.rudn.ru/structural-mechanics/article/viewFile/42703/24462
work_keys_str_mv AT alenaakurdanova monitoringoftechnicalconditionofbuildingsbyseismicmethod
AT mikhailnvoskresenskiy monitoringoftechnicalconditionofbuildingsbyseismicmethod
AT elenaakosorotova monitoringoftechnicalconditionofbuildingsbyseismicmethod
AT gennadiyiparygin monitoringoftechnicalconditionofbuildingsbyseismicmethod