TY - JOUR
T1 - Wind Load Combinations of Atypical Supertall Buildings
AU - Kim, Yong Chul
AU - Tamura, Yukio
AU - Kim, Sangdae
N1 - 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.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - 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%.
AB - 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%.
KW - Atypical supertall building
KW - Combination factor
KW - Peak normal stress
KW - Tip displacement
KW - Wind effects
KW - Wind load combination
KW - Wind tunnel test
UR - http://www.scopus.com/inward/record.url?scp=84952690916&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)ST.1943-541X.0001359
DO - 10.1061/(ASCE)ST.1943-541X.0001359
M3 - Article
AN - SCOPUS:84952690916
VL - 142
JO - Journal of Structural Engineering (United States)
JF - Journal of Structural Engineering (United States)
SN - 0733-9445
IS - 1
M1 - 04015103
ER -