PREDICTION OF COLLAPSED LOAD OF STEEL COLUMNS USING FINITE STRIP METHOD

Ofuyatan, Olatokunbo M. and Olawale, Simon and Ede, A. N. and Oyebisi, S.O and Oluwafemi, John and Alayande, T (2018) PREDICTION OF COLLAPSED LOAD OF STEEL COLUMNS USING FINITE STRIP METHOD. International Journal of Civil Engineering and Technology (IJCIET), 9 (8). pp. 347-357. ISSN 0976-6316

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Abstract

The solution of inelastic bifurcation of column is the eigenvalue and eigenvectors which can be solved by many methods such as Power Method and William-Wittrick algorithm which has been proven to be efficient. This study utilised a new method of solution algorithm that utilizes the decomposition of the net assembled structural global matrix into the lower and upper triangles leading to the calculation of the determinant of the decomposed matrix. The product of the squared leading diagonals is the determinant which is the error of the present calculation. This method has been demonstrated to be about 0.02% error. The conventional Finite Strip Method is programmed with the new solution algorithm using an object oriented programming concept (Java). The method is compared with the published work and the agreement between the current work and the reported experimental and numerical work is excellent. Residual stress is successfully implemented with the new solution algorithm.

Item Type:	Article
Uncontrolled Keywords:	Finite strip method, column, numerical, collapse, residual stress.
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment
Depositing User:	Mrs Hannah Akinwumi
Date Deposited:	28 Sep 2018 11:02
Last Modified:	28 Sep 2018 11:02
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/11941

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