Some questions of stability of multi-span continuous rods
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2016, Vol 1, Issue 65
Abstract
The paper is devoted to some problems of stability of straight continuous rods simply supported at the ends and having one or more intermediate rigid or elastic roller supports compressed by axial force constant along the length. Some qualitative features of the buckling modes associated to their main critical forces: nodes, points of inflection, and several others were studied. In addition, some features of the behaviour of the buckling modes and the corresponding critical forces depending on the position and stiffness of intermediate supports were researched. Some conditions under which buckling modes are semi-curved, i.e. include rectilinear fragments are determined, and the relationship of these modes with the problem of improving stability is marked. The study presents the most qualitative results of the theory of elastic rod systems, which determine the effect of setting constraints on the critical forces and corresponding buckling modes. The obtained results can be used to solve problems related to the design and operation of engineering structures containing the compressed elements.
Authors and Affiliations
S. Ya. Bekshaev
Keywords
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