CFRP加固实心黏土砖柱研究

采用碳纤维布分别对未加载及加载至破坏的实心黏土砖柱进行了加固，通过试验研究了碳纤维环箍加固对实心黏土砖柱极限承栽力的提高程度及其受力性能，并对碳纤维布加固的砖柱的受力特点及影响承载力、延性的因素作了分析。结果表明：碳纤维布提供的紧箍力使实心黏土砖柱的强度和延性都得到较大提高。根据试验结果的分析，提出了粘贴CFRP环箍加固的轴压及偏压黏土砖柱的正截面承载力计算方法，计算结果与试验结果吻合良好。

Research on Brick Columns Strengthened by CFRP

The results of experiment and analytical studies of the performance of uncracked and cracked brick columns confined with CFRP were presented.Confined brick columns were instrumented and tested under axial and eccentric compressive load.Test variables include eccentricity of brick columns,spacing,width and layer of CFRP strips.The results show that external confinement of masonry by CFRP can significantly enhance the strength,ductility and energy absorption capacity of masonry.Equations to predict the compressive strength of CFRP confined masonry columns were developed.A comparison between the experimental results and those of analytical results indicate that the proposed model provides satisfactory prediction of ultimate compressive strength.