| Title |
Performance Based Wind Design of a Slender Tall Building |
| Authors |
황지우(Hwang, Ji-Woo) ; 김종호(Kim, Jong-Ho) ; 주석준(Joo, Sukjun) ; 김경태(Kim, Kyungtae) |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.4.347 |
| Keywords |
Performance-Based Wind Design (PBWD); Time-History Wind Load; Slender Tall Building; Resonant Response Reduction |
| Abstract |
This study investigates a performance-based wind design (PBWD) approach applied to a super-tall building with a slenderness ratio of H:B:D
= 240 m : 72 m : 24 m (10 : 3 : 1), located in Seoul, Korea, under Exposure Category B. To allow limited inelastic behavior of structural
members, design models incorporating wind response modification factor of ?? = 1.0, 1.5, and 2.0 were developed. For each model, linear
and nonlinear time-history analyses were conducted to evaluate changes in structural response characteristics and to verify compliance with
performance criteria. The proposed PBWD methodology was applied to a practical design example to assess the adequacy of occupant
comfort evaluation procedures, the inelastic member behavior, and related design constraints. Analysis results indicate that the top-story
displacement and acceleration responses satisfied the PBWD requirements for all cases, validating the proposed approach in ensuring building
serviceability. In addition, the reduction of the wind resonant component resulted in a partial decrease in the required flexural reinforcement
of coupling beams, which led to the development of limited inelastic behavior in selected coupling beams in the nonlinear time-history
analyses. However, in this example, the overall reduction in reinforcement quantity was limited, primarily due to increased uplift forces in
shear walls and the dominance of minimum shear reinforcement requirements in coupling beams. |