Ultimate resisting capacity of slender RC columns

effect of slender RC columns under seismic load

“…(1). Further details regarding the solution algorithms from the construction of an element stiffness matrix to the convergence at each time step can be found in the literature [12,15,25,26].…”

Elastic Design of Slender High-Strength RC Circular Columns Confined with External Tensioned Steel Straps

“…To account for the effect of slenderness in the design, the procedure uses a capacity reduction factor, C, analogue to that proposed by Kwak and Kim (2004). From the analyses and results shown in this paper, the following conclusions are drawn:…”

“…A new approach is proposed to predict the ultimate capacity of slender SSTT-confined HSC columns, based on the direct capacity reduction method proposed by Kwak and Kim (2004). In this method, the column is initially assumed as "short", and its load-moment (P-M) interaction diagram is calculated using section analysis based on force equilibrium and compatibility conditions.…”

“…The approach is based on results from segmental analyses of slender SSTT-confined circular columns subjected to eccentric loads. A capacity reduction factor analogue to that proposed by Kwak and Kim (2004) accounts for the effect of slenderness in design. P-M interaction diagrams computed using rigorous nonlinear Panalyses are compared to those calculated by the proposed approach to assess its accuracy.…”

“…the capacity of columns with L/r≥70 in comparison to the "amplification factor" method used by ACI 318 (Kwak and Kim 2004).…”