摘要
为了解钢管混凝土框架结构抗震性能,推广在地震区的应用,进行了八层钢管混凝土柱-H钢梁框架结构模型振动台试验和有限元模拟分析,研究了结构在El-Centro波、天津波(N-S)和武汉人工地震波激励下的最大地震作用、层间剪力、应变和位移反应.试验结果与数值模拟结果符合较好,结构位移受低阶振型影响较大,结构变形呈弯剪型,随着地震波峰值加速度增大,高阶振型主导作用加强.研究表明,钢管混凝土框架结构具有较好的抗震性能,ANSYS8.1可以较好地模拟钢管混凝土框架结构地震反应.
In order to analyze the seismic behavior of tubular frame of concrete filled steel and popularize this type of structure in seismic areas,shaking table test and finite element analysis were carried out on an eightstory concrete filled steel tube（CFST） column frame model structure.The model responses of the largest earthquake force,story shear force,deformation and strain under different earthquake waves（El-Centro wave,Tianjin wave and Wuhan artificial wave） were measured.The experimental data agree well
with those of ANSYS. The deformation of this structure presents a shear - flexural type, and the low mode has a great influence on the displacement of structure, while the high mode plays a leading role with the increasing acceleration of the peak value of earthquake wave. It is indicated that the CFST column frame has a good seismic behavior, and ANSYS8. 1 can simulate the seismic responses of this structure well.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2009年第10期123-128,共6页
Journal of Harbin Institute of Technology
基金
湖北省教育厅科学研究计划资助项目(Q20091210)
关键词
钢管混凝土
振动台
有限元分析
地震反应
oncrete filled steel tube
shaking table
finite element analysis
earthquake response
