| Author | Thawatchai Danwangkhaw |
| Call Number | AIT Thesis no.ST-11-04 |
| Subject(s) | Aerodynamic load
|
| 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-11-04 |
| Abstract | The methods that used in wind tunnel model tests vary widely, and the selection of the
method for a project is typically produced based on judgment and experience of engineering.
In this study, the procedures that used to determine the overall wind forces on billboard
structures are the High Frequency Force Balance Method (HFFB) and the High Frequency
Pressure Integration Method (HFPI). The High Frequency Force Balance Method (HFFB), it
is a direct measurement method at the base of billboard model tests of overall wind loads
meanwhile, the High Frequency Pressure Integration Method (HFPI) is based on the
simultaneous local pressure measurements at many locations on billboard panel and local
pressure can be converted to be load and can be integrated from all local loads to determine
the overall wind loads at the base of a model. The HFPI method can be measured wind loads
by using pressure measurement.
A restricted-tube system is used to transmit fluctuating pressure on billboard panel by
plastic tubing to a pressure transducer for pressure measurement of the HFPI method.
Moreover, the prediction of dynamic response for a restricted-tube system can be determined
by theoretical and experimental methods. Theory of Bergh and Tijdeman (1965) is used to
determine the dynamic response of theoretical method. The frequency requirements of a
restricted-tube system were checked found to be acceptable and according to The
Australasian Wind Engineering Society (A WES-QAM-1-2001, 2001 ).
The load and response results between the HFFB method and the HFPI method are in
good agreement which load and response results are mean aerodynamic coefficients,
horizontal and vertical eccentricity and wind-force spectra.
Dynamic pressure distribution can be identified by the HFPI method and can be
varied with wind attacking angles. |
| Year | 2011 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-11-04 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pennung Warnitchai |
| Examination Committee(s) | Park, Kyung-Ho;
Chiu, Gregory |
| Scholarship Donor(s) | HM King |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2011 |