Wind Load Combinations of Atypical Supertall Buildings

Yong Chul Kim, Yukio Tamura, Sangdae Kim

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Wind loads are generally divided into along-wind, across-wind, and torsional loads, but in reality they occur simultaneously in time and space. Furthermore, because they do not show their maximums at the same instant, they need to be combined appropriately. In this study, pressure measurements were conducted on atypical supertall buildings to investigate wind load combinations. Using a simplified reference model with four columns, analyses in the time domain were conducted, and this paper proposes combination rules based on the concept of combination factor that can be applied to atypical supertall buildings. The combination factor for a square model is approximately 0.5, and those for atypical models differ depending on building shape. Two methods are discussed in the determination of combination factors, and comparisons between peak normal stresses by analysis and combination factor show relatively good agreement, ranging mostly within ±5%.

Original languageEnglish
Article number04015103
JournalJournal of Structural Engineering (United States)
Issue number1
Publication statusPublished - 2016 Jan 1

Bibliographical note

Funding Information:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2013R1A6A3A01064632). And this study was partly funded by the Ministry of Education, Culture, Sports, Science and Technology, Japan, through the Global Center of Excellence Program, 2008-2012. The authors also thank Hideyuki Tanaka, Kazuo Ohtake, and Masayosi Nakai at Takenaka Corporation in Japan.

Publisher Copyright:
© 2015 American Society of Civil Engineers.


  • Atypical supertall building
  • Combination factor
  • Peak normal stress
  • Tip displacement
  • Wind effects
  • Wind load combination
  • Wind tunnel test

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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