摘要
通过40根横向粘贴FRP布加固实心黏土砖方柱及4根对比柱的轴心受压试验和理论分析的结果,比较分析不同FRP材料、不同长细比和不同FRP加固量等参数对加固砖柱的承载力、延性和破坏形态的影响,确定FRP布约束实心黏土砖方柱在轴心受压作用下的计算模型,并提出FRP布约束实心黏土砖方柱的承载力计算方法,计算结果与试验结果吻合较好,研究结果可供工程应用参考。
40 square-section columns made of solid clay bricks with Fiber Reinforced Plastic (FRP) confinements and 4 other columns for comparison were tested under axial compression. The effects of different FRP materials, different length/width ratios, the amount of FRP and other parameters on the bearing capacity, ductility, and failure mode of the strengthened columns were analyzed. Theoretical analysis was performed, and a calculation model was presented for predicting the ultimate strength of square-section solid clay brick columns confined with FRP, which is shown to be in good agreement with the experimental data.
出处
《土木工程学报》
EI
CSCD
北大核心
2009年第10期1-7,共7页
China Civil Engineering Journal
基金
辽宁省自然科学基金(20022005)
国家科技支撑计划课题(2006BAJ03A01-05)
关键词
FRP
轴心受压
短柱
承载力
延性
fiber reinforced plastic
axial compressing
short column
bearing capacity
ductility