Earthquake resistance analysis of structural systems of multi-storey civil buildings

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Abstract


Relevance. Increasing the density of urban population requires the use of optimal structural systems of multi-storey civil buildings, however, despite a large number of studies on the rationality of their application, the question of choosing an assessment of seismic resistance of structural systems of multi-storey civil buildings is still open. The aim of the study. This study aims to determine advantages and disadvantages of structural systems of multi-storey buildings in seismic areas. Methods. The results of comparison analysis of five structural systems (columns grid - 6×6 m, storey height - 3 m, number of storeys - 20) are presented in this article. The structural systems are: frame & tube, frame & core, core & walls, framed core & walls, framed core & tube. The calculation were done according to Building Code 14.13330.2018 for an earthquake of 8 points intensity of MSK-64 intensity scale. The SCAD Office software package was used for modeling and analyzing. The sum of the effective modal masses taken in the calculation was at least 90% of the total mass of the system excited in the direction of the seismic action for horizontal impacts and at least 75% - for vertical impacts. Results. The comparison was carried out according to the following criteria: maximum displacements, maximum compressive and tensile stresses, maximum periods of natural oscillations, maximum accelerations.


About the authors

Zaurbek K. Abaev

North Caucasian Institute of Mining and Metallurgy

Author for correspondence.
Email: abaich@yandex.ru
SPIN-code: 2843-1586
44 Nikolaeva St., Vladikavkaz, 362021, Republic of North Ossetia - Alania, Russian Federation

Candidate of Technical Sciences, Associate Professor of the Civil Engineering Department

Marat Yu. Kodzaev

North Caucasian Institute of Mining and Metallurgy

Email: abaich@yandex.ru
SPIN-code: 7389-8508
44 Nikolaeva St., Vladikavkaz, 362021, Republic of North Ossetia - Alania, Russian Federation

Candidate of Technical Sciences, Associate Professor of the Department of Theoretical and Applied Mechanics

Aleksandr A. Bigulaev

North Caucasian Institute of Mining and Metallurgy

Email: abaich@yandex.ru
SPIN-code: 8764-6513
44 Nikolaeva St., Vladikavkaz, 362021, Republic of North Ossetia - Alania, Russian Federation

Candidate of Technical Sciences, Associate Professor of the Department of Theoretical and Applied Mechanics

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Copyright (c) 2020 Abaev Z.K., Kodzaev M.Y., Bigulaev A.A.

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