机械振动引起的高层建筑共振与减振响应实测

刘佩,朱海鑫,杨维国,皇甫楠琦

Tests on resonance and vibration mitigation responses of high-rise building under machine excitations

Pei LIU,Hai-xin ZHU,Wei-guo YANG,Nan-qi HUANGFU

表 3 测试方案及各时段加速度均方根值和振动计权加速度级

Tab.3 Test plan and RMS accelerations and weighted acceleration levels for all time intervals

持时 nA nB RMSa/（10−3 m·s−2） VL/dB 0~1 020 s 4 3 11.1 75 1 020~1 800 s 3 3 9.3 73 1 800~3 000 s 0 3 1.5 57 3 000~4 500 s 0 0 1.3 56 4 500~5 400 s 2 0 1.9 59 5 400~6 000 s 4 0 8.0 72 6 000~7 200 s 3 3 8.5 73 7 200~8 100 s 1 3 2.1 60