| Title |
Horizontal Vibration Tests for Occupants' Comfort with Their Postures |
| Authors |
Cho Kang-Pyo ; Kim Sun-Hee |
| Keywords |
Posture ; Occupant ; Horizontal Vibration ; Human Comfort ; Natural Frequency ; Tall Buildings |
| Abstract |
The purpose of this study is to estimate occupant's acceptability-grade for horizontal vibrations of tall buildings by posture of occupants, of which human comfort criteria are not currently included in the Korean building code. A one-dimensional shaking table was used for horizontal vibration experience of young people group. And a container-room with similar to a living space in residental house was prepared on the shaking table. The horizontal vibration experience test was performed by people sit or lie on the floor of the container-room. They experienced by increasing acceleration in the specified frequency range of from 0.2Hz through 1.2Hz. The feeling of testee was examined using a questionnaire based on human comfort criteria of foreign countries. From the results of the horizontal vibration experience test, cumulative percentage of allowable acceleration amplitude by each frequency was computed for the two postures. It was shown from analyzing trend lines of allowable acceleration by posture for horizontal vibrations that as the natural frequency of a building becomes higher, testee in a lying posture experienced less shaking than those in a sitting posture and the slopes of the trend lines were generally gentle. It was observed from investigating the feeling of testee that as the natural frequency of a building becomes higher, they experienced intense shaking and testee in a lying posture felt less displeasure for vibrations than those in a sitting posture did. |