Computer Analysis for Slender Concrete Columns

by John Gaughan, Sr. Design Analyst; Ove Arup and Partners, Dublin, Ireland,

Serial Information: Journal of the Structural Division, 1974, Vol. 100, Issue 10, Pg. 2123-2141

Document Type: Journal Paper


A computerized finite difference method is presented for the analysis of slender reinforced concrete columns. The method is developed in detail for the particular case of columns fixed at the base and prevented from deflecting laterally at the top as compressive loading is applied. Columns may have variations of cross section along their lengths. A longitudinal plane of symmetry is assumed in which buckling takes place. Allowance is made for the effects of cracking of the concrete, initial lack of straightness, and initial deflection of the top of the column by cantilever action. Reduction in the capacity of the column arising from the creep of the concrete is examined.

Subject Headings: Computer analysis | Concrete columns | Reinforced concrete | Displacement (mechanics) | Finite difference method | Case studies | Compression | Lateral loads

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