基于舒适度评价的篮球运动单人荷载简化模型研究OA

Multi-purpose sports arenas often incorporate basketball courts within interior floor slabs or rooftops.The human-induced loads generated by basketball activities can cause structural vibration discomfort and noise issues.However,current structural designs lack load models specific to basketball activities for conducting comfort analyses.To address this,floor vibration measurements and synchronized video recordings were conducted during a professional indoor basketball game.The most unfavorable load condition was identified as the impact load caused by rebounding under the basket.Time-history curves of foot-ground reaction force during basketball activities were obtained from force tests of an outdoor basketball court.Based on these load characteristics,four simplified load models were established.Research conclusions indicate that the power-linear-exponential segmented load model balances computational accuracy and parameter complexity.Structural response peak acceleration errors calculated using this model remain below 15％,and exhibit robust performance across multiple natural frequencies.