SECOND ORDER STRUCTURAL THEORY FOR THE STABILITY ANALYSIS OF COLUMNS

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Abstract

Stability analysis in civil engineering is traditionally centred on the stability of individual components of a structure, rather than on the stability of the assemblage of structural components. This may be explained by the lack of adequate tools for the stability analysis of complete structures in the past. Recently, the necessity of the development of general rational methods of stability analysis with a model of the complex structure is widely recognized. These methods should reliably predict the overall stability of the structure, the interaction between the components of the structure in providing restraint against instability of individual members, and the local stability of each individual member. Development of such theories and corresponding algorithms require a thorough investigation. The aim of this paper is to investigate the instability of single columns without large deflections by means of the second order structural theory and to study the influence of imperfections on the behaviour of such structural elements.

About the authors

Vera V Galishnikova

Peoples' Friendship University of Russia (RUDN University)

Email: galishni@gmail.com
Professor, Director of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples’ Friendship University of Russia (RUDN University). Research interests: computational civil engineering, building information modeling, topological computer models of buildings, computational geometry, computational mechanics of complex steel structural systems - latticed plates and shells, thin-walled plate and plate-rod structures. nonlinear finite element analysis of space frames, nonlinear stability of structures 6 Mikluho-Maklaya St., Moscow, 117198, Russia

Tesfaldet Hadgembes Gebre

Peoples' Friendship University of Russia (RUDN University)

Email: tesfaldethg@gmail.com
Master of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples’ Friendship University of Russia (RUDN University). Research interests: questions of the stability of multi-story buildings elements 6 Mikluho-Maklaya St., Moscow, 117198, Russia

Sahar Mohammed Al-Sabri

Peoples' Friendship University of Russia (RUDN University)

Email: sahar.alsabri@mail.ru
Master of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples’ Friendship University of Russia (RUDN University). Research interests: metal constructions, computational civil engineering, building information modeling, computational mechanics of complex steel structural systems 6 Mikluho-Maklaya St., Moscow, 117198, Russia

Osman Saffia-Doe

Peoples' Friendship University of Russia (RUDN University)

Email: osmadoe@yahoo.com
Master of the Department of Architecture and Civil Engineering, Engineering Academy, Peoples’ Friendship University of Russia (RUDN University). Research interests: design of steel structure, structure mechanics, stability analysis 6 Mikluho-Maklaya St., Moscow, 117198, Russia

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