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In recent times, numerous powerful earthquakes have struck across the globe, with intensities exceeding standard design values by 1 … 2 points, resulting in widespread destruction of buildings and infrastructure. These events underscore the urgent need to revise current regulatory frameworks, particularly by increasing the prescribed seismic design loads. Consequently, it becomes essential to reassess the seismic performance of existing buildings that were originally designed according to outdated codes. This article explores the critical issue of evaluating and enhancing the earthquake resilience of such structures in light of evolving seismic realities.This article presents the results of a seismic resistance assessment for a nine-story reinforced concrete frame building with stiffening diaphragms, subjected to seismic loads exceeding the original design values. To evaluate the seismic performance of the existing structure, a numerical analysis was carried out using a static nonlinear (pushover) method. As a failure criterion, the maximum seismic load corresponding to the complete loss of the building’s load-bearing capacity was selected. The seismic resistance was assessed by considering the maximum values of seismic impact from two horizontal components, applied independently along each principal direction of the building. According to the adopted methodology, the structural model of the building frame, subjected to vertical loads, was incrementally loaded with the horizontal component of seismic action using displacement-controlled nonlinear static analysis. The horizontal load was gradually increased until the structure reached its maximum seismic capacity. The building under study was originally designed in accordance with the outdated seismic code SNiP RK 2.03-30-2006, which specified a seismic load corresponding to a site acceleration of 0.125g. However, under current seismic design standards—SP RK 2.03-30-2017*—the same site is classified for a seismic acceleration of 0.2g. Therefore, the existing structure is now expected to resist a seismic load that is 1.6 times greater than the load considered in its original design (0.2g vs. 0.125g). The study revealed that complete loss of the building's load-bearing capacity occurs under a special load combination when the seismic load is applied in the direction of the Y-axis. It was determined that structural failure takes place at the thirteenth loading stage, corresponding to a horizontal seismic acceleration of 0.163g. This value is lower than the required acceleration of 0.2g as specified by the current seismic code SP RK 2.03-30-2017*. This finding indicates that the building is incapable of withstanding the seismic demands outlined in the updated standards, highlighting its insufficient seismic resistance under the revised design requirements. Based on the results of the conducted research, it was proposed to strengthen the structural system of the building, which was originally designed and constructed in accordance with the outdated standards SNiP RK 2.03-30-2006, in order to enhance its seismic resistance and ensure compliance with current seismic safety requirements.
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2. Akbiev R.T., Abakanov M.S. Operativnaya otsenka posledstviy razrushitel'nogo zemletryaseniya v Turtsii. Geology and the environment. 2023. 3 (1). P. 35 – 51. DOI: 10.26516/2541-9641.2023.1.35
3. Kulikova E.Yu., Balovtsev S.V. Risk control system for the construction of urban underground structures. IOP Conference Series. Materials Science and Engineering. 2020. 962 (4). 042020.
4. Kulikova E.Yu., Balovtsev S.V., Skopintseva O.V. Complex estimation of geotechnical risks in mine and underground construction. Sustainable Development of Mountain Territories. 2023. 15 (1). P. 7 – 16.
5. Belov N.N., Kabantsev O.V., Kopanitsa D.G., Yugov N.T. Raschetno‑eksperimental'nyy metod analiza dinamicheskoy prochnosti elementov zhelezobetonnykh konstruktsiy. Tomsk. STT. 2008. 292 p.
6. Zhidkova S.V., Mayorov V.I. Inzhenernyy analiz posledstviy zemletryaseniy. Earthquake‑resistant construction. Safety of structures. 2008. 2. P. 51 – 53.
7. Zhangabay N., Suleimenov U., Utelbayeva A., Baibolov K., Imanaliyev K., Moldagaliyev A., Karshyga G., Duissenbekov B., Fediuk R., et al. Analysis of a stress‑strain state of a cylindrical tank wall vertical field joint zone. Buildings. 2022. 12. 1445.
8. Volokitina I., Bychkov A., Volokitin A. Natural aging of aluminum alloy 2024 after severe plastic deformation. Metallography Microstructure and Analysis. 2023. 12 (3). P. 564 – 566.
9. Sapargaliyeva B.O., Bychkov A.Yu., Alferyeva Ya.O., Syrlybekkyzy S., Altybaeva Zh.K., Nurshakhanova L.K., Seidaliyeva L.K., Suleimenova B.S., Zhidebayeva A.E., Zhanikulov N.N., Zhakipbaev B.Ye., Suleimenova T.N., Koshkarbayeva Sh.K., Suigenbayeva A.Zh. Thermodynamic modeling of the formation of the main minerals of cement clinker and zinc fumes in the processing of toxic technogenic waste of the metallurgical industry. Rasayan Journal of Chemistry. 2022. 15 (3). P. 2181 – 2187. DOI: 10.31788/RJC.2022.1536230.
10. Muratov B., Shapalov S., Syrlybekkyzy S., Volokitina I., Zhunisbekova D., Takibayeva G., Nurbaeva F., Aubakirova T., Nurshakhanova L., et al. Physico‑chemical study of the possibility of utilization of coal ash by processing as secondary raw materials to obtain a composite cement clinker. Journal of Composites Science. 2023. 7. P. 234.
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12. Suleimenov U., Abshenov K., Utelbayeva A., Baibolov K., Fediuk R., Arinova D., Seitkhanov A., Amran M. Analysis of stress‑strain state for a cylindrical tank wall defected zone. Materials. 2022. 15 (16). 5732. https://doi.org/10.3390/ma15165732
13. Ussenkulov Z.A., Orazbayev Z.I., Aldiyarov Z.A. Seysmostoykost' mnogoetazhnykh zhelezobetonnykh stenovykh karkasnykh konstruktsiy pri razrushitel'nykh zemletryaseniyakh. Periodicals of Engineering and Natural Sciences. 2019. 7 (4). P. 1582 – 1598. https://doi.org/10.21533/pen.v7i4.841
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15. Kunanbayeva Y., Yerimbetov B., Chalabayev B., Aubakirova F., Duissenbekov B. Primeneniye nesushchikh konstruktsiy so smeshannoy nagruzkoy v seysmostoykom stroitel'stve. Geotechnical and Geological Engineering. 2022. 40. P. 5527 – 5537. https://doi.org/10.1007/s10706-022-02230-6
16. Satzhanov O.I. Issledovaniye raboty karkasnogo zdaniya regulyarnoy formy v plane na deystviye nagruzok osobogo sochetaniya s uchetom seysmicheskogo vozdeystviya. Scientific works of M. Auezov SKSU. 2020. 2 (54). P. 44 – 54.
17. Otegen E.D., Kosbarmakova J.A. Issledovaniye raboty zdaniya krutil'no‑podatlivoy sistemy na deystviye nagruzok osobogo sochetaniya s uchetom seysmicheskogo vozdeystviya. Scientific works of M. Auezov SKSU. 2020. 2 (54). P. 34 – 44.
18. Taskaraeva D.Zh., Sychev D.V. Izucheniye nelineynoy raboty staticheski neopredelimykh zhelezobetonnykh karkasnykh sistem. International scientific and practical conference “Auezov readings‑10: Ways of innovative development of science, education and culture in the new decade”. Shymkent. 2012. 9. P. 131 – 135.
19. Yerimbetov B.T. K postroyeniyu uprugoplasticheskoy diagrammy deformirovaniya zhelezobetonnykh elementov «sila‑peremeshcheniye». Seventh International scientific and practical conference “Key issues in modern science‑2011”. Sofia. 2011. 40. P. 14 – 16.
20. Taskaraeva D.J. Issledovaniye raboty konsol'nykh vnetsentrenno‑szhatykh elementov s uchetom uprugo‑plastichnykh svoystv materialov betona i armatury. International scientific and practical conference “Auezov readings‑9: Ways of innovative development of science, education and culture in the new decade”. Shymkent. 2010. 6. P. 272 – 275.
Nurseitov Sh., Yerimbetov B., Duissenbekov B., Chalabayev B., Kolesnikov A., Dossaliyev K., Kunanbayeva Ya., Aubakirova F. Capabilities of existing frame buildings with shear diaphragms to resist seismic effects of destructive earthquakes. Construction Materials and Products. 2025. 8 (2). 10. https://doi.org/10.58224/2618-7183-2025-8-2-10