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Analysis of Tapered and Stepped Columns by Analogy to Cantilever Deflection

by Marius B. Wechsler,



Document Type: Proceeding Paper

Part of: Building Code Requirements for Masonry Structures (ACI 530-88/ASCE 5-88) and Specifications for Masonry Structures (ACI 530.1-88/ASCE 6-88) (ACI 530.1-88/ASCE 6-88)

Abstract:

An analysis is developed for handling the buckling design of tapered and stepped columns with the aid of the so called 'amplification factors'. When these factors are applied to the axial loads of tapered and stepped columns, then their axial stresses can be determined as for a prismatic column having the same height as the actual column, and a constant cross section equal to that of the cross section of its fixed end. This procedure is based on the fact that the shape of a buckled column resembles to that of a deflected cantilever beam.

Subject Headings: Beam columns | Buckling | Axial loads | Steel structures | Cantilevers | Steel frames | Steel construction

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