| Author | Ding, Xiong |
| Call Number | AIT Thesis no. ST-94-7 |
| Subject(s) | Buildings--Earthquake effects
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
master of engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | An analytical model of liquid sloshing in the annular tank was formulated in
particular based on the potential flow theory and concept of generalized coordinates in
accompanying with Lagrange equation In this study.
Experimental verification of the analytical model was performed by the shaking
table test while the tests on the effect of the additional damping device, i.e., 4
wire-mesh screens, inserted into the annular tank model for increasing its damping
ratio was conducted. Considering the practical application of the annular TLD to the
TV tower model, the study was focused on the first sloshing mode. It was found that
analytical results agree well with the experimental one.
Shaking table experiment for investigating the effectiveness of annular TLD in
suppressing the dynamic response of the TV tower model was carried out using both
harmonic and earthquake excitations.
Dynamic properties of the TV tower model, such as the natural frequency, mode
shape and damping ratio were acquired. Dynamic response of the TV tower model
without annular TLD and with TLD were compared. The experimental results showed
that the annular TLD, whose 1st mode sloshing frequency was tuned to that of the TV
tower model, was very efficient in reducing the resonance responses and effective to
suppress the structural responses induced by the earthquake excitations. |
| Year | 1994 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Jiaru, Qian ;Pennung Warnitchai
|
| Examination Committee(s) | Worsak kanok-Nukulchai |
| Scholarship Donor(s) | German Academic and Cultural
Exchange Service( DAAD in Germany) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1994 |