| Title |
Evaluation of Amplitude-Dependent Damping Ratio and Natural Frequency of a Tall RC Building based on Long Term Measurement Data |
| Authors |
Jung, Hee-Kyung ; Kim, Hong-Jin ; Choi, Sun-Young |
| DOI |
http://dx.doi.org/10.5659/JAIK_SC.2015.31.1.11 |
| Keywords |
Tall Building ; Natrual Period ; Damping Ratio ; Natural Frequency ; Long Term Measurement |
| Abstract |
The amplitude dependence of the natural frequency and damping ratio of tall RC building is investigated based on the long term measurement data. In order to verify the identified dynamic properties, the time domain and frequency domain methods are used and the results are compared. It was found that the natural frequency decreases as the response increases clearly. On the other hand, there is no noticeable response dependancy of damping ratio even though the damping ratio increases slightly as the response increases. |