| Title |
The Wind Load Evaluation on Building Considering Vertical Profile of Fluctuating Wind Force |
| Authors |
Ryu, Hye-Jin ; Shin, Dong-Hyeon ; Ha, Young-Cheol |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.7.157 |
| Keywords |
Wind Resistance Design; Wind Load; Vertical Profile of Fluctuating Wind Force; Wind Load Evaluation Method |
| Abstract |
The wind tunnel test makes it possible to predict the wind loads for the wind resistant design. There are many methods to evaluate wind
loads from data obtained from the wind tunnel test and these methods have advantages and disadvantages. In this study, two of these
methods were analyzed and compared. One is the wind load evaluation method by fluctuating displacement and the other is the wind load
evaluation method considering vertical profile of fluctuating wind force. The former method is evaluated as the sum of the mean wind load
of the average wind force and the maximum value of the fluctuating wind load. The latter method is evaluated as the sum of the mean
wind load and maximum value of the background wind load, and the maximum value of the resonant wind load. Two methods were applied
to the wind tunnel test to compare the evaluated wind loads according to the two methods, with a maximum difference of about 1.2 times.
The wind load evaluated by the method considering vertical profile of the fluctuating wind force (VPFWF) was larger than the wind load
evaluated by the method by fluctuating displacement (FD). Especially, the difference of the wind load according to the two methods is large
in the lower part of the building and the wind load is reversed at a specific height of the building. VPFWF of evaluating resonant wind
loads and background wind loads separately is more reasonable. |