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为研究人员运动荷载下大跨度楼盖的振动特性,以内蒙古伊旗全民健身体育中心大跨度张弦梁楼盖体系为背景,采用生物力学测力平台进行人员行走、跑步、跳跃、起立等运动荷载实测和相关分析研究.考虑可能出现的各种运动荷载工况,对大跨度张弦梁楼盖区振动开展有限元分析和现场实测.分析表明:行走、跑步及跳跃荷载工况下,人员动力放大系数分别约为1.2、2.4及4.9,大跨度楼盖在人员运动荷载数值模型激励下,所得有限元分析结果与现场实测竖向加速度峰值及理论计算值吻合较好.
In order to study the vibration characteristics of long-span floor under exercise load of researchers, taking the long-span floor-sill floor system of Yiqian National Fitness Center in Inner Mongolia as the background, the biomechanical force measurement platform was used to measure the walking load such as walking, running, jumping and standing And related analysis and research.According to the possible conditions of various kinds of sports loads, the finite element analysis and on-site measurement of floor vibration of long-span beam string girders are carried out.The analysis shows that under the condition of walking, running and jumping loads, About 1.2, 2.4 and 4.9, the finite element analysis results of the long-span floor under the excitation of the numerical model of the movement load of human beings are in good agreement with the measured vertical acceleration and the calculated value of the field.