STRESS-STRAIN STATE CALCULATIONS FOR THE SOIL BASE OF THE SLAB FOUNDATION OF A HIGH-RISE BUILDING
Dossaliev K.S. Karabaev M.I. Aubakirova F.K. Karabaeva A.M. Kunanbayeva Y.B.
2025National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2025#2025Issue 339 - 54 pp.
One of the important challenges in the design of high-rise buildings is the accurate assessment of deformations in foundation structures that transmit heavy loads to the underlying soils. These loads engage soil layers at considerable depths, often with significantly different physical and mechanical characteristics. Slab foundations for high-rise buildings represent a complex engineering structure with a large footprint and deep embedment. The load from the building is not only massive but also highly non-uniformly distributed across the foundation area. To analyze the interaction between the slab foundation and the underlying soil, design studies were conducted using GEO-MIGG software. The stress-strain behavior of the soil foundation was simulated in a three-dimensional spatial formulation (3D). For detailed analysis, solid-state and finite-element models of the “soil foundation – slab foundation” system were developed using the ANSYS software package. The results of simulations showed that the settlement of the foundation slab occurs unevenly during construction. The maximum settlement (S = 53 mm) is predicted in the central zone of the slab. However, the calculated values of total settlement (53 mm) and relative differential settlement (4.23×10⁻⁴) do not exceed the allowable limits for such structural systems (100 mm and 0.002, respectively). The proposed design methodology can be effectively applied for analysis and design of foundations for high-rise buildings in complex geotechnical conditions.
design modeling , heterogeneous geological structure , slab foundation , soil deformation nonlinearity , the ground
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Department “Industrial, civil and road construction”, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Moscow Geomechanics Engineering Group (MGEG) LLC, Moscow, Russian Federation
TOO “Archcon”, Astana, Kazakhstan
Department “Industrial
Moscow Geomechanics Engineering Group (MGEG) LLC
TOO “Archcon”
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