THE EFFECTIVE LENGTH OF BENT-COLUMNS BASED ON SECOND-ORDER EFFECTS

he conventional method is the major structural design method considering second-order effects of reinforced concrete bent-columns, and its accuracy mostly depends on the rationality of effective length . The disadvantage of the initial-parameter method deriving the effective length of bent-columns in Chinese Standard is pointed out, and according to the improved initial-parameter method, a more rational effective length of bent-columns is suggested in the paper.