Investigation of methods for increasing the stability of building structures under the combined effects of dynamic and static loads in conditions of complex soil foundations
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Abstract
The presented study is devoted to the analysis and development of complex methods for increasing the stability of building structures operating under the simultaneous effects of dynamic and static loads on complex ground foundations. The relevance of the work is due to the growing requirements for the safety of buildings and structures in seismically active regions with heterogeneous geological conditions. The methodological basis of the research includes numerical modeling using the finite element method, experimental tests on physical models and field surveys of existing structures. A multiparametric model of the "soil–foundation–structure" interaction has been developed, taking into account the nonlinear behavior of soils under various combinations of loads. The results of the study showed that the integrated use of a combination of damping elements, geosynthetic materials and modified pile foundation technologies increases the stability of structures by 28-35%, depending on the type of soil base. It was found that the dynamic gain coefficient under combined loads decreases by 42% when using the proposed solutions, and the total bearing capacity of the foundations increases 1.6 times. An analysis of the field test data revealed an increase in the vibration attenuation coefficient by 0.23, which corresponds to a 31% decrease in the vibration amplitude of structures compared to traditional solutions. The practical significance of the research lies in the development of recommendations for the design of building structures with increased stability on difficult soils, which helps to reduce material consumption and increase the reliability of buildings and structures. The results obtained open up prospects for the further development of adaptive structural systems capable of effectively resisting complex loads in difficult engineering and geological conditions.
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References
Allawi A.A., Mohammed Q.S. Numerical analysis of a concrete foundation under a combination of a dynamic and a seismic load // Journal of Engineering. 2022. № 28(2). рр. 18-39.
Avilеs J., Suаrez M., Sаnchez-Sesma F.J. Effects of wave passage on the relevant dynamic properties of structures with flexible foundation // Earthquake engineering & Structural dynamics. 2002. № 31(1). рр. 139–159.
Bapir B., Abrahamczyk L., Wichtmann T., Prada-Sarmiento L.F. Soil-structure interaction: A state-of-the-art review of modeling techniques and studies on seismic response of building structures // Frontiers in built environment. 2023. № 9. рр. 112-351.
Belinchon P., Sorensen K.K., Christensen R.A. A case study of the interaction between a pile and soft soil focusing on negative skin friction using finite element analysis // Proceedings of the 17th Nordic Geotechnical Meeting. 2016. рр. 513–522.
Benz T. Small-strain stiffness of soils and its numerical consequences: doct. diss. Stuttgart: University of Stuttgart, 2007.
El Hoseny M., Ma J., Dawoud W., Forcellini D. The role of soil structure interaction (SSI) on seismic response of tall buildings with variable embedded depths by experimental and numerical approaches // Soil dynamics and earthquake engineering. 2023. № 164. рр. 107-583.
El Hoseny M., Ma J., Josephine M. Effect of embedded basement stories on seismic response of low-rise building frames considering SSI via small shaking table tests // Sustainability. 2022. № 14(3). Р. 1275.
Eldar G., Singh B. Analysis of irregular multistoried buildings with and without floating columns under seismic loading // Materials today: proceedings. 2022. Vol. 56. pp. 2698-2702.
Far H. Advanced computation methods for soil-structure interaction analysis of structures resting on soft soils // International journal of geotechnical engineering. 2019. № 13(4). рр. 352-359.
Firoj M., Maheshwari B.K. Dynamic impedances of CPRF using coupled BEM-FEM approach: A parametric study and application // Engineering analysis with boundary elements. 2023. № 156. рр. 8-19.
Gao X., Duan P., Duan S. Simulated seismic response analysis of subway tunnels under complex geological conditions of obliquely incident seismic SV waves // Arabian journal of geosciences. 2021. № 14(11).
Jeong S.Y., Kang T.H.K., Yoon J.K., Klemencic R. Seismic performance evaluation of a tall building: practical modeling of surrounding basement structures // Journal of building engineering. 2020. № 31. рр.101-420.
Kim S., Roesset J.M. Effect of nonlinear soil behavior on inelastic seismic response of a structure // International journal of geomechanics. 2004. № 4(2). рр.104-114.
Tasleem M., Firoj M., Bahuguna A. Effect of open-ground storey on RC frame buildings incorporating soil-structure interaction // Asian journal of civil engineering. 2022. № 23(4). рр. 471-485.
Zhang X., Far H. Seismic behaviour of high-rise frame-core tube structures considering dynamic soil-structure interaction // Bulletin of earthquake engineering. 2022. № 20. рр. 5073-5105.
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