Elsevier

Computers & Structures

Volume 46, Issue 5, 3 March 1993, Pages 845-850
Computers & Structures

Buckling analysis of large and complex structures by using substructuring techniques

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Abstract

Over the past two decades, with the development in structural forms and the use of new materials, modern bridges and buildings have become light, high-rise, and large-span. Therefore, the buckling problems of these structures have become of increasing concern in structural design. This paper presents a method using substructuring techniques for buckling analysis of large and complex structures. The method has the advantage in the reduction of degrees of freedom by using buckling mode coordinates, thus buckling analyses of large and complex structures can be carried out on a microcomputer with high efficiency. The convergence of the present method is discussed. Two numerical examples are given to demonstrate the computational efficiency of the method. The comparison of the computed results ensures that the method is practical and sufficiently accurate.

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