Mechanics and Slenderness Limits of Sway-Restricted Reinforced Concrete Columns

摘要: Several aspects of nonslender (short) column limits are considered. Such limits, below which it is acceptable to ignore local second-order effects that may cause a maximum moment develop between member ends, generally confined columns braced frames, but also relevant for sway-restricted unbraced frames. Local and global reviewed in this context, the effect (sway-modified moments) discussed, concluded end ratios approximate magnifier expressions slenderness should be expressed terms sway-modified moments. The need providing separate such as ACI 318-05 code, nonsway sway questioned. critically several inconsistencies pointed out with respect their differences different basis on they were derived. They compared more comprehensive limit replace both comparisons made summary nonlinear analysis results.