中文摘要：

利用三维动作捕捉技术结合固定测力板,分两阶段开展了100人次5种跳跃频率的单人跳跃荷载实验.利用22 921条有效单次跳跃荷载曲线,研究了跳跃频率、脉冲系数及接触率3个控制参数的变化范围与规律,并提出了单次跳跃的修正半正弦平方荷载模型.在参数相关性研究基础上给出了模型参数的取值方法,以及仿真生成连续跳跃荷载时程的计算步骤.通过仿真生成的跳跃荷载曲线与实测曲线的时程特征对比,以及单自由体系结构响应对比说明了所建议荷载模型的合理性,可用于结构振动舒适度设计问题.

英文摘要：

The load curves of 100 test subjects with five different jumping rates are measured using the three-dimensional motion capture technique in conjunction with the fixed force plates.The variation ranges and statistical properties of the three key load parameters,namely,the jumping frequency,the impact factor and the contact ratio,are summarized based on the 22 921 valid jumping load curves.A modified half-sine-square load model is proposed to simulate the jumping load,in which the jumping frequency and the contact ratio are independent parameters whilst the impact factor needs to be determined by frequency and contact ratio.The applicability and feasibility of the proposed model has been validated by comparison of the simulated load curves with the measured curves and by comparison of the acceleration response of the single-degree-of-freedom system subjected to the simulated jumping loads with the response to the measured ones.The suggested model can be adopted for vibration comfortability assessment of long span structures.