Vibration test and analysis of Laoshan bicycle gymnasium for the Olympic Games under multi-support excitations  

作　　者：YE JiHong ZHOU ShuLu BAO Wei WEI Zheng LI ZhiJun 

机构地区：[1]School of Civil Engineering,Southeast University,Nanjing 210096,China

出　　处：《Science China(Technological Sciences)》2008年第9期1516-1529,共14页中国科学（技术科学英文版）

基　　金：the National Natural Science Foundation of China (Grant No.50108003)

摘　　要：The vibration tests of Laoshan bicycle gymnasium for the Olympic Games are performed under multi-support excitations in order to verify the effectiveness of multi-support time history method. The excitation sources come from the impact forces acting on the ring beam of the reticulated structure, on the basis of which the records of motions of each excited point and corresponding structural vibration responses are all collected. The theoretical analytical model of the structure is further established and the structural dynamic responses are obtained subjected to the same excitation case via multi-support time history method. The calculation results are generally in agreement with those of the test in both time domain and frequency domain, which verify the effectiveness of multi-support time history method. The vibration test can also provide references for long-span structures under multi-support excitations.The vibration tests of Laoshan bicycle gymnasium for the Olympic Games are performed under multi-support excitations in order to verify the effectiveness of multi-support time history method. The excitation sources come from the impact forces acting on the ring beam of the reticulated structure, on the basis of which the records of motions of each excited point and corresponding structural vibration responses are all collected. The theoretical analytical model of the structure is further established and the structural dynamic responses are obtained subjected to the same excitation case via multi-support time history method. The calculation results are generally in agreement with those of the test in both time domain and frequency domain, which verify the effectiveness of multi-support time history method. The vibration test can also provide references for long-span structures under multi-support excitations.

关 键 词：VIBRATION test multi-support EXCITATION multi-support TIME HISTORY method 

分 类 号：TB123[理学—工程力学]