摘要
对3根损坏的钢骨混凝土L形截面柱和1根损坏的钢筋混凝土L形截面柱进行外包角钢加固,并对加固后的试件进行低周反复加载试验,考察了加固后L形截面柱的破坏形态、滞回曲线、耗能能力、延性和退化刚度。结果表明,加固试件均呈现为腹板自由端混凝土被压碎的破坏形式,滞回曲线相对饱满,具有良好的抗震性能。
This paper describes an experimental research on 3 damaged steel reinforced L shape section concrete columns and a damaged normal L shape section concrete column strengthened by steel encasement under horizontal low cyclic loading. Based on the test results, failure mode, the hysteretic curves, energy dissipation, ductility and stiffness degradation were examined. The results indicated that, the failure mode of the column enhanced by steel encasement was concrete crush of the web of the columns, and their hysteretic curves were plump, and they performed good seismic performance.
出处
《工业建筑》
CSCD
北大核心
2012年第6期60-64,130,共6页
Industrial Construction
关键词
外包钢加固柱
抗震性能
滞回曲线
column enhanced by steel encasement
seismic performance
hysteretic curves
