Stability of Three-Flight Bars
Abstract: The stability of centrally compressed elements is an urgent task of building mechanics and steel structures in the form of multi-span rods. The article proposes a methodology for solving a number of specific stability problems for three-span rods. In this case, the theoretical basis for calculating flexible rods in longitudinal-transverse bending is used. To do this, we used the differential equation of longitudinal-transverse bending, which is solved in a closed form by the method of initial parameters. The problems of determining the coefficient of reduction of length for three-span rods with a number of different ways of fixing in one plane of inertia are considered. A connection is established between the desired independent variable in the resolving functions of the differential equation and the length reduction coefficient. The presented technique can be applied to calculate these rods and under different fixing conditions in the main planes of inertia.
Keywords: longitudinal-transverse bending, stability, method of initial parameters, coefficient of reduction of length, critical force.
Pages: 75-81.
For citation:
For citation: Demidov, A. I.; Meh, D. I.; Parasyuk, K. V. Stability of Three-Flight Bars. – Text : electronic. – In: <em>Proceeding of the Donbas National Academy of Civil Engineering and Architecture</em>. – 2020. – Issue 2020-4(144) Scientific and technical achievements of students of the construction and architectural industry. – Р. 75-81. – URL: https://donnasa.ru/publish_house/journals/vestnik/2020/2020-4(144)/st_15_demidov_meh_parasyuk.pdf (date of access: 22.12.2024). – ISSN 2519-2817.
Issue 2020-4 (144)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture