EXPERIMENTAL STUDY ON DYNAMIC BEHAVIOR AND SEISMIC RESPONSE OF CONCRETE FILLED SQUARE STEEL TUBULAR COLUMN FRAME STRUCTURE
In order to analyze the dynamic behavior and the seismic response of the concrete filledsquare steel tubular (CFSST) column frame structure, a 1/5 scaled CFSST column frame structure model was designed and manufactured. From carrying out the model test and the shaking table test,dynamic parameters (frequency, vibration model and damping ratio) of the CFST frame were obtined,and the frame model responses of acceleration, displacement and strain under different earthquake waves (E1-Centro wave, Tianjin wave and Wuhan artificial wave) were measured. It can be indicated from the tests that: Single point Input Single point Output (SISO) method is the better way to investigate the dynamic behavior of the CFSST frame structure; the maximum displacement and acceleration amplification coefficient of the model under three earthquake waves are 17.50mm and 2.46 respectively; the deformation of this structure under the magnitude 8 earthquake presents a bending type, in addition, beam ends and column ends are still in elastic state; the maximum inter-storey drift angle is 1/70, they dont exceed the plastoelastic limit value in the specifications.
Concrete-Filled square steel tube Shaking table Earthquake response Model test
Cheng-Xiang Xu Guo-Feng Du Juan Chen Lu-Tao Zhu Xiao-Jun Zhou
School of Urban Construction, Yangtze University, Jingzhou 434023,P.R. China Department of Civil Engineering, Xiangfan University, Xiangfan 441053, P. R. China petrochina Huabei oilfiled Company, XinJi 052360,P.R.China
国际会议
第十届国际结构工程青年学者研讨会(The Tenth International Symposium on Structural Engineering for Young Experts)
长沙
英文
705-709
2008-10-19（万方平台首次上网日期，不代表论文的发表时间）