Qinglin Z.,Dalian Architectural Design and Research Institute Co. |
Lichang W.,Dalian Architectural Design and Research Institute Co. |
Dahai J.,Dalian Architectural Design and Research Institute Co.
Applied Mechanics and Materials | Year: 2012
With the study of the 3rd conference hall of Dalian International Conference Center, test and relevant calculation are applied to the structural natural frequency and floor vibration due to human excitations. The Monte Carlo stochastic analysis is applied to the cases in which the comfort for vibration due to crowd excitations may exceed the limit. The results show that the Monte Carlo stochastic method and load curves of excitations are reliable, but in the actual test the high-order harmonic effect of walking excitation is not obvious. In the stochastic analysis with the closer frequency and phase of crowd excitations or the greater population density, the discreteness of results is smaller. Compared with the population density, the differences of frequency and phase of crowd excitations lead to a bigger discreteness of results. With the bigger discreteness of frequency and phase of excitations, the peak accelerations of stochastic model are significantly smaller than the simplified model with the same frequency and phase. © (2012) Trans Tech Publications, Switzerland. Source