碳纤维布加固震损砖柱受压性能研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
针对震损砌体结构的加固需求,提出采用碳纤维布(CFRP)加固震损砖柱的方法.通过轴心、偏心受压试验,对碳纤维布(CFRP)条带满包加固震损砖柱的受压性能展开研究,对加固前后砖柱的承载能力、变形能力及碳纤维布(CFRP)条带的应变等进行对比分析,讨论了碳纤维布(CFRP)在砖柱受力过程中发挥的作用,在此基础上提出碳纤维布(CFRP)加固砖柱承载力计算公式.研究表明,碳纤维布(CFRP)加固震损砖柱效果良好,提出的计算公式与试验结果吻合良好.
In order to meet the demands of reinforcement of earthquake-damaged masonry structures,a method for strengthening earthquake-damaged brick columns with carbon fiber reinforced plastics(CFRP)is proposed.Through the axial and eccentric compression tests,the compression behavior of earthquakedamaged brick columns strengthened by CFRP is studied.The bearing capacity,deformation capacity and strain of CFRP strip of the brick columns are compared with those of brick columns without strengthening.And the effect of CFRP under loading is analyzed.A formula for calculating the ultimate bearing capacity of earthquake-damaged brick column strengthened by CFRP is proposed based on experimental study.The research results show that the reinforcement effect of CFRP is very good and the proposed formula is reasonable.
引文
[1]余江滔,陆洲导,张克纯.震损钢筋混凝土框架节点修复后抗震性能试验研究[J].建筑结构学报,2010,31(12):64-73.
    [2]张超,翁大根.震损建筑抗震鉴定加固中地震作用取值研究[J].建筑结构学报,2013,34(2):61-68.
    [3]雷真,周德源,王继兵.BFRP加固严重震损砌体砖墙抗震性能[J].中南大学学报(自然科学版),2013,44(12):5084-5090.
    [4]周小龙.震损钢筋混凝土框架结构抗震性能评估方法研究[D].重庆:重庆大学,2014.
    [5]尹保江,肖疆,程绍革,赵向丽.RC框架结构楼梯震损后加固方法的试验研究及有限元分析[J].建筑结构,2014,44(5):17-20.
    [6]许成祥,彭威,许凯龙,周立.碳纤维布加固震损方钢管混凝土框架边节点抗震性能试验研究[J].建筑结构学报,2014,35(11):69-76.
    [7]Santa-Maria H,Alcaino P.Repair of in-plane shear damaged masonry walls with external FRP[J].Construction and Building Materials,2011,25(3):1172-1180.
    [8]Capaozucca R.Experimental analysis of historic masonry walls reinforced by CFRP under in-plane cyclic loading[J].Composite Structures,2011,94(1):277-289.
    [9]Parvin Azadeh,Wu Shanhong.Ply angle effect on fiber composite wrapped reinforced concrete beam-column connections under combined axial and cyclic loads[J].Composite Structures,2008,82(4):532-538.
    [10]GB 50003-2011砌体结构设计规范[S].北京:中国建筑工业出版社,2011.
    [11]GB 50702-2011砌体结构加固设计规范[S].北京:中国建筑工业出版社,2011.
    [12]GB 50608-2010纤维增强复合材料建设工程应用技术规范[S].北京:中国计划出版社,2010.
    [13]GB/T 21490-2008结构加固修复用碳纤维片材[S].北京:中国标准出版社,2008.
    [14]GB 50203-2011砌体结构工程施工质量验收规范[S].北京:中国建筑工业出版社,2011.
    [15]江见鲸,李杰,金伟良.高等混凝土结构理论[M].北京:中国建筑工业出版社,2007.

版权所有:© 2021 中国地质图书馆 中国地质调查局地学文献中心