Abstract
Recently, the remodeling projects of old low-rise buildings were launched in Korea. However, most of them were not satisfied with the value set forth by the KBC2005. Even though there are some research studies on how to improve the seismic performance of such buildings as newly constructed buildings, there is little research in measuring the actual vibrations on low old buildings to prove the effect of retrofit. There also has not been any in-depth research on the dynamic characteristics of full-scale structures using vibration measurements of the building that was damaged to failure. Using an actuator, the dynamic characteristics of reinforced three-storey concrete buildings were evaluated before and after they were damaged. After an 80-mm horizontal displacement by the actuator, frequency in the long and short directions were reduced to 20.85% and 5.77%respectively ; damping ratio was also reduced to 53.9% and 23.15% respectivly.
| Translated title of the contribution | Vibration Characteristics of a Building Before and After Damage by Actual Measurement |
|---|---|
| Original language | Korean |
| Pages (from-to) | 445-453 |
| Number of pages | 9 |
| Journal | 한국강구조학회 논문집 |
| Volume | 22 |
| Issue number | 5 |
| State | Published - Oct 2010 |