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Safety Evaluation of Concert Hall Floor Vibration Using Numerical Analysis Model

수치해석모델을 이용한 콘서트 홀 바닥진동 안전성 평가

  • Received : 2017.08.25
  • Accepted : 2017.10.27
  • Published : 2017.12.29

Abstract

In this paper, the floor vibration of an example concert hall building was measured and floor safety criteria were analytically checked through comparison between experimental and analytical results. The floor bottom plate model was constructed considering the composite effect and the analytical model was modified to have the natural frequency identical to the measured one. Also, time history analysis was conducted using the dynamic loads induced by human rhythmic movement during a musical performance, and the analytically calculated floor accelerations were similar to the measured one. Based on this model, the floor vibration level due to the group activities of about 400 persons, maximum available persons for the concert hall, was estimated. It was confirmed that the human induced dynamic loads applied to the column and beam would be much lower than the design strength. In addition, the horizontal acceleration level is just 2% of the design seismic load, so the concert hall is safe in both vertical and horizontal excitations by human rhythmic movements.

Acknowledgement

Supported by : 국토교통과학기술진흥원

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