Ambient Vibration Analysis for Structural Identification of High-rise Buildings
The performance of the buildings underenvironment excitation depends on stiffness and mass distribu tions along the structure especially on the distribution of shear walls and columns.Experience has shown the finite element (FE) models often fail to predict accurately the fundamental natural frequencies.The addi tional stiffness provided by the in-filled wall and the decreased stiffness caused by the structure-soil interac tion will cause the inconsistence of the analytical and experimental results.To understand of the dynamic performance of the structures, a project led by Hunan University together with Laibin Housing and Urban Rural Construction Committee were conducted.A series of ambient vibration tests were conducted on several high-rise buildings in Laibin city of Guangxi Zhuang Autonomous Region.One building was analyzed in de tail for example in this paper.Ambient vibration signals analysis was recorded by rational accelerometer in strumentations.CMIF method was used to identify the lateral and torsional modes after a series of signal pre processing of data.The analytical analysis was performed by SATWE in PKPM software, which was regarded as the most widely used structural designing software in Chinese Designing Institute.The analytical and ex perimental modal analysis results were compared.
Y.Zhou D.X.Tan L.M.Xie Y.Z.Jiang W.J.Yi
College of Civil Engineering, Hunan University, Yuelu Mountain, Changsha, Hunan, China Laibin Housing and Urban-Rural Construction Committee, Laibin, Guangxi, China
国际会议
哈尔滨
英文
612-619
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）