钢骨-钢管混凝土柱抗震性能试验研究  

EXPERIMENTAL STUDY ON SEISMIC BEHAVIOR OF STEEL TUBULAR COLUMN FILLED WITH STEEL-REINFORCED CONCRETE

作　　者：杨德山[1] 

机构地区：[1]内蒙古科技大学建筑与土木工程学院,内蒙古包头014010

出　　处：《钢结构》2015年第11期10-13,共4页Steel Construction

基　　金：内蒙古科技大学创新基金(2012NCL041)

摘　　要：通过4根钢骨-钢管混凝土柱试件在高轴向压力和低周反复水平荷载作用下的试验,研究钢骨-钢管混凝土柱的抗震性能。设计时主要考虑轴压比、含骨率对试件抗震性能的影响。根据采集的荷载、位移等数据,绘制出试件的滞回曲线和骨架曲线。试验结果表明,该组合柱滞回曲线饱满,具有良好的耗能能力。随含骨率的增大,试件刚度衰减速度减缓,构件承载力和延性有明显的提高,耗能能力增加。随着轴压比的增加,试件刚度衰减速度加快,其骨架曲线下降段越陡,相应的构件延性越差,耗能能力减小。The seismic behavior of steel tubular column filled with steel-reinforced concrete under high axial compressive force and low-cycle repeated horizontal load was investigated through 4specimens.The effects of axial compression ratio and steel ratio on the seismic performance were discussed.The hysteretic curves and skeleton curves were draw by the data of loads,displacement and so on.The experimental results showed that the hysteresis curves of the columns were plump,which indicated the columns had good energy dissipation capacity.Stiffness deterioration decreased and the hysteretic energy dissipation capacity increased with the increasing of steel ratio.With the increase of steel ratio,the ductility and the bearing capacity of columns had been significantly improved.The stiffness deterioration was accelerated and the hysteretic energy dissipation capacity decreased with the increase of axial compression ratio.In addition,the ductility of the specimens decreased with the increase of axial compression ratio.

关 键 词：组合柱 抗震性能 轴压比 含骨率 

分 类 号：TU398.9[建筑科学—结构工程] TU352.11