| Title |
Dynamic Assessment for Vertical Irregular Structures Considering Higher Mode Effects |
| Authors |
노경민(Ro, Kyoung Min) ; 김민숙(Kim, Min Sook) ; 이영학(Lee, Young Hak) |
| DOI |
https://doi.org/10.5659/JAIK.2020.36.12.233 |
| Keywords |
Vertical Irregularity; Higher Mode Effect; Nonlinear Static analysis; Nonlinear Dynamic analysis |
| Abstract |
The seismic performance evaluation procedure according to Korea infrastructure safety corporation is classified as nonlinear static procedure
and nonlinear dynamic procedure, if the structures were determined that the higher modes are significant, the nonlinear dynamic analysis is
required to supplement the nonlinear static procedure such as Pushover analysis. The nonlinear dynamic analysis has a disadvantage in that it
takes a lot of time for the analysis and complicated. Therefore, in this study, pushover analysis and nonlinear dynamic analysis were
performed to analyze the dynamic behavior of vertical irregular structures considering higher mode effects. In addition, this study was
determined whether if it is possible to modeling by replacing vertical irregular structures with regular structures using the story stiffness as a
variable. The results of study were confirmed that the higher mode effect can be significant not only for high rise building or vertical
irregular structures but also for regular structures. In addition, as a result of the study, it was confirmed that vertical irregular structures can
be replaced with regular structures based on the story stiffness. |