The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms
Introduction. Research was carried out on the performance of monolithic reinforced concrete buildings of varying heights with and without a seismic isolating sliding belt when subjected to the most unfavourable earthquake accelerograms. The objective of the study is to assess the effectiveness of se...
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Moscow State University of Civil Engineering (MGSU)
2024-07-01
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| Online Access: | https://www.vestnikmgsu.ru/jour/article/view/309 |
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| author | O. V. Mkrtychev S. R. Mingazova |
| author_facet | O. V. Mkrtychev S. R. Mingazova |
| author_sort | O. V. Mkrtychev |
| collection | DOAJ |
| description | Introduction. Research was carried out on the performance of monolithic reinforced concrete buildings of varying heights with and without a seismic isolating sliding belt when subjected to the most unfavourable earthquake accelerograms. The objective of the study is to assess the effectiveness of seismic isolation in the form of a sliding belt at the foundation level under the action of the most unfavourable earthquake accelerograms using a direct nonlinear dynamic method.Materials and methods. The study employed a direct dynamic method based on an explicit integration scheme of the equation of motion (the central difference method). To determine the most unfavourable earthquake accelerograms, a method was used that accounted for all the most significant natural frequencies of the building under consideration.Results. Based on the calculations conducted, relative displacements and stress intensities for the building as a whole and in detail for the most loaded floor were determined. The analysis of the obtained results showed a significant reduction in shear displacements and stress intensities with the use of seismic isolation in the form of a sliding belt at the foundation level.Conclusions. When selecting the type of seismic isolation, its cost, as well as the labour intensity of manufacturing and installation, must be considered. It is necessary for the seismic isolation systems used to be available for mass construction, less complex, and maximally effective. Proven materials and technologies for the installation of these systems, which do not require specific skills and qualifications, should be used. Seismic isolation should provide comprehensive protection against the most likely seismic impacts. Conducted research shows that the seismic isolating sliding belt meets the above requirements. Unlike widely used rubber-metallic and pendulum sliding bearings, seismic isolation in the form of a sliding belt at the foundation level does not require factory manufacturing and can be implemented directly at the construction site. |
| format | Article |
| id | doaj-art-c9dccd4fa187443f992487b17e71be39 |
| institution | Kabale University |
| issn | 1997-0935 2304-6600 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Moscow State University of Civil Engineering (MGSU) |
| record_format | Article |
| series | Vestnik MGSU |
| spelling | doaj-art-c9dccd4fa187443f992487b17e71be392025-01-09T08:22:50ZengMoscow State University of Civil Engineering (MGSU)Vestnik MGSU1997-09352304-66002024-07-011971104111510.22227/1997-0935.2024.7.1104-1115142The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerogramsO. V. Mkrtychev0S. R. Mingazova1Moscow State University of Civil Engineering (National Research University) (MGSU)Moscow State University of Civil Engineering (National Research University) (MGSU)Introduction. Research was carried out on the performance of monolithic reinforced concrete buildings of varying heights with and without a seismic isolating sliding belt when subjected to the most unfavourable earthquake accelerograms. The objective of the study is to assess the effectiveness of seismic isolation in the form of a sliding belt at the foundation level under the action of the most unfavourable earthquake accelerograms using a direct nonlinear dynamic method.Materials and methods. The study employed a direct dynamic method based on an explicit integration scheme of the equation of motion (the central difference method). To determine the most unfavourable earthquake accelerograms, a method was used that accounted for all the most significant natural frequencies of the building under consideration.Results. Based on the calculations conducted, relative displacements and stress intensities for the building as a whole and in detail for the most loaded floor were determined. The analysis of the obtained results showed a significant reduction in shear displacements and stress intensities with the use of seismic isolation in the form of a sliding belt at the foundation level.Conclusions. When selecting the type of seismic isolation, its cost, as well as the labour intensity of manufacturing and installation, must be considered. It is necessary for the seismic isolation systems used to be available for mass construction, less complex, and maximally effective. Proven materials and technologies for the installation of these systems, which do not require specific skills and qualifications, should be used. Seismic isolation should provide comprehensive protection against the most likely seismic impacts. Conducted research shows that the seismic isolating sliding belt meets the above requirements. Unlike widely used rubber-metallic and pendulum sliding bearings, seismic isolation in the form of a sliding belt at the foundation level does not require factory manufacturing and can be implemented directly at the construction site.https://www.vestnikmgsu.ru/jour/article/view/309seismic resistanceactive seismic protectionseismic isolationseismic isolating sliding beltfluoroplasticdirect dynamic methodaccelerogram of earthquake |
| spellingShingle | O. V. Mkrtychev S. R. Mingazova The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms Vestnik MGSU seismic resistance active seismic protection seismic isolation seismic isolating sliding belt fluoroplastic direct dynamic method accelerogram of earthquake |
| title | The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms |
| title_full | The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms |
| title_fullStr | The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms |
| title_full_unstemmed | The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms |
| title_short | The efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms |
| title_sort | efficiency of the seismic isolating sliding belt under the impact of the most unfavourable earthquake accelerograms |
| topic | seismic resistance active seismic protection seismic isolation seismic isolating sliding belt fluoroplastic direct dynamic method accelerogram of earthquake |
| url | https://www.vestnikmgsu.ru/jour/article/view/309 |
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