Title:
Dynamic Wind Response Analyses of Tall Concrete Core Wall Buildings
Author(s):
Sol-Gi Eun and Thomas H.-K. Kang
Publication:
Structural Journal
Volume:
123
Issue:
5
Appears on pages(s):
57-72
Keywords:
aerodynamic wind load; concrete core wall; high-rise building; mode shape; multi-degree-of-freedom (MDOF); spectral analysis (SA); structural response; tall building; time-history analysis (THA); wind
DOI:
10.14359/51750669
Date:
9/1/2026
Abstract:
With the recent increase in high-rise buildings with core walls, there has been a significant surge in research focused on advanced wind load assessment. Despite the availability of nonlinear analysis, linear methods remain prevalent in practice and research due to their computational efficiency and ease of implementation. This study investigates the wind-induced responses of tall concrete core wall buildings using two commonly adopted linear analytical approaches: spectral analysis (SA) and time-history analysis (THA). The agreement between SA and THA is examined, revealing noticeable discrepancies in roof displacement and acceleration responses, with SA yielding nonconservative estimations in certain cases. A comparative evaluation of these linear analysis methods remains of practical importance and provides useful insights that can serve as foundational information for establishing analytical frameworks for performance-based wind design. Because SA is extensively employed in current design standards, this study further reviews the provisions related to the mode shape assumptions and assesses their conservatism.
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