| Author | Boworn Chutipatwipa |
| Call Number | AIT Thesis no.ST-13-07 |
| Subject(s) | Tall buildings - Aerodynamics
|
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering in
Structural Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. ST-13-07 |
| Abstract | The effect of aerodynamic interference on a standard tall building was investigated by using wind tunnel model tests. The standard tall building is the well-known CAARC building. The model was tested in a boundary layer wind tunnel that simulated a sub-urban turbulent wind condition. The High Frequency Force Balance (HFFB) technique was employed for identifying modal forces for fundamental sway modes and torsional mode. The interfering building has the same geometry with the principal (CAARC) building. The effect of wind attack angle on the response of the principal building was also examined. Unlike most other studies in the past where the aerodynamic interference effect was presented in terms of the interference factor for mean or fluctuating response, in this study the effects on mean, background, and resonant responses were separately identified, and their associated interference factors were determined and plotted as IF contour maps. This approach allows us to gain more insight into the aerodynamic interference effect. The standard code formulas typically developed for computing wind-induced responses of isolated tall buildings can also be modified to account for the aerodynamic interference effect by using this set of separated interference factors. The obtained IF contour maps show some critical zones in both upstream and downstream of the principal building where the aerodynamic interference could significantly increase the total response (by a factor of more than 2 in some cases). The increase is mainly caused by a great increase in the resonant response. Similar findings were also found for other wind attack angles |
| Year | 2013 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-13-07 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai; |
| Examination Committee(s) | Punchet Thammarak ;Thanakorn Pheeraphan; |
| Scholarship Donor(s) | Royal Thai Government Fellowship; |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2013 |