舞蹈教室楼盖人致荷载振动舒适度分析

Vibration Serviceability Analysis of A Dance Classroom Under Human Induced Excitation

舞蹈活动可对楼盖产生较大的荷载激励,某舞蹈教室楼盖基频处于人致荷载的敏感频率范围。基于行走和舞蹈活动中可能出现的荷载类型,选择单人步行、人流自由行走、节奏性活动、舞蹈的跳跃、舞蹈中集体起立等人致荷载激励计算各楼板振动峰值加速度,计算结果表明,舞蹈教室的楼盖舒适度满足要求,舞蹈的跳跃、舞蹈中集体起立为舞蹈教室楼盖人致振动的不利工况。相关荷载模型和分析方法可为类似结构设计提供参考。

Dance activities may cause greater load excitation to the floor. The fundamental frequency of the floor of the dance classroom is in the sensitive frequency range of human-induced load. Based on the types of loadings that may occur in walking and dancing activities, the peak acceleration of each floor is calculated under single person walking, free walking, rhythmic activity, jump and collective stand in the dance. The computation results show that the vibration serviceability of the floor of the dance classroom meets the requirements. Jump and collective stand in the dance are the adverse conditions for the human-induced vibration of the classroom floor. Some relevant human-induced load models and analytical methods can provide reference for designing the similar structural.