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上海交响乐团排演厅紧邻地铁线路,具有较高的隔振隔声要求,采取的隔振措施包括地铁轨道设置的浮置板道床和排演厅底板下的弹簧整体隔振,在排演厅底板下方共设置了108组弹簧。通过现场基础筏板的振动实测及排演厅整体动力计算分析,表明可以满足排演厅较高的振动和二次噪声控制要求。在此基础上,进行了排演厅结构优化重量减轻后的振动和噪声分析比较,得出了合理的弹簧刚度选取及布置的优化措施。
Shanghai Symphony Orchestra rehearsal hall close to the subway line, with high requirements of vibration isolation and sound insulation, vibration measures taken to include the installation of the subway track floating floor ballast bed and rehearsal hall floor under the spring overall vibration isolation, rehearsal hall floor below the total Set 108 groups of springs. According to the vibration measurement of the foundation raft and the overall dynamic calculation of the rehearsal hall, it shows that the rehearsal hall can meet the requirements of higher vibration and secondary noise control. On this basis, the vibration and noise analysis and comparison of the reorganization hall structure optimization and weight reduction are carried out, and the reasonable selection of spring stiffness and the optimization measures of arrangement are obtained.