苏州混凝土水泥制品研究院有限公司

头部文案

发布时间:2020-01-06 00:00:00
全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊(光盘版)全文收录期刊
华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊
CFRP与BFRP加固RC柱抗震性能比较研究
Comparative Study on the Seismic Performance of Reinforced Concrete Columns Strengthened with CFRP and BFRP
2019年第9期
ABAQUS;FRP;RC柱;抗震性能;结构加固
ABAQUS; FRP; RC column; Seismic performance; Structural reinforcement
2019年第9期
10.19761/j.1000-4637.2019.09.070.06
尚 聪,马江霖,王崇革,罗思颖
山东科技大学山东省土木工程防灾减灾重点实验室,青岛 266590

尚 聪,马江霖,王崇革,罗思颖

尚聪,马江霖,王崇革,等.CFRP与BFRP加固RC柱抗震性能比较研究[J].混凝土与水泥制品,2019(9):70-75.

SHANG C,MA J L,WANG C G,et al.Comparative Study on the Seismic Performance of Reinforced Concrete Columns Strengthened with CFRP and BFRP[J].China Concrete and Cement Products,2019

浏览量:
1000
摘 要:采用有限元软件ABAQUS建立CFRP与BFRP加固RC柱的数值模型,比较研究了两种FRP材料加固RC柱的抗震性能,并系统地讨论了FRP材料类型、长细比、轴压比、FRP加固层数等参数对RC柱抗震性能的影响。研究结果表明,模型可以较好地模拟FRP加固钢筋混凝土圆柱的抗震性能,与试验结果吻合。随着FRP包裹层数增加,试件的承载力逐渐提高,但存在最佳加固层数;随着轴压比的增加,试件承载力有一定提高,但延性降低。在长细比一定范围内,试件的承载力及延性得到较大提高。相同工况下,两种FRP加固RC柱在承载力、延性、耗能能力方面相近,但考虑到价格优势及较好的力学性能,BFRP在混凝土结构抗震加固领域有较好的应用前景。 Abstract: The numerical model of CFRP and BFRP-reinforced RC columns was established by finite element software ABAQUS. The seismic behavior of two kinds of FRP-reinforced RC columns was studied. The FRP material type, slenderness ratio, axial compression ratio and FRP reinforcement layer on the seismic performance of the RC column were systematically analyzed. The results show that the model can better simulate the seismic performance of FRP-reinforced reinforced concrete columns, which is in good agreement with the experimental results. With the increase of the number of FRP wraps, the bearing capacity of the test piece is gradually increased, but the optimal number of layers is present. With the increase of the axial compression ratio, the bearing capacity of the test piece is improved, but the ductility is reduced. In a certain range of slenderness ratio, the bearing capacity and ductility of the test piece are greatly improved. Under the same working conditions, the two FRP-reinforced RC columns are similar in bearing capacity, ductility and energy consumption. However, considering the price advantage and good mechanical properties, BFRP has a good application prospect in the field of seismic strengthening of concrete structures.
英文名 : Comparative Study on the Seismic Performance of Reinforced Concrete Columns Strengthened with CFRP and BFRP
刊期 : 2019年第9期
关键词 : ABAQUS;FRP;RC柱;抗震性能;结构加固
Key words : ABAQUS; FRP; RC column; Seismic performance; Structural reinforcement
刊期 : 2019年第9期
DOI : 10.19761/j.1000-4637.2019.09.070.06
文章编号 :
基金项目 :
作者 : 尚 聪,马江霖,王崇革,罗思颖
单位 : 山东科技大学山东省土木工程防灾减灾重点实验室,青岛 266590

尚 聪,马江霖,王崇革,罗思颖

尚聪,马江霖,王崇革,等.CFRP与BFRP加固RC柱抗震性能比较研究[J].混凝土与水泥制品,2019(9):70-75.

SHANG C,MA J L,WANG C G,et al.Comparative Study on the Seismic Performance of Reinforced Concrete Columns Strengthened with CFRP and BFRP[J].China Concrete and Cement Products,2019

摘要
参数
结论
参考文献
引用本文

摘   要:采用有限元软件ABAQUS建立CFRP与BFRP加固RC柱的数值模型,比较研究了两种FRP材料加固RC柱的抗震性能,并系统地讨论了FRP材料类型、长细比、轴压比、FRP加固层数等参数对RC柱抗震性能的影响。研究结果表明,模型可以较好地模拟FRP加固钢筋混凝土圆柱的抗震性能,与试验结果吻合。随着FRP包裹层数增加,试件的承载力逐渐提高,但存在最佳加固层数;随着轴压比的增加,试件承载力有一定提高,但延性降低。在长细比一定范围内,试件的承载力及延性得到较大提高。相同工况下,两种FRP加固RC柱在承载力、延性、耗能能力方面相近,但考虑到价格优势及较好的力学性能,BFRP在混凝土结构抗震加固领域有较好的应用前景。
Abstract: The numerical model of CFRP and BFRP-reinforced RC columns was established by finite element software ABAQUS. The seismic behavior of two kinds of FRP-reinforced RC columns was studied. The FRP material type, slenderness ratio, axial compression ratio and FRP reinforcement layer on the seismic performance of the RC column were systematically analyzed. The results show that the model can better simulate the seismic performance of FRP-reinforced reinforced concrete columns, which is in good agreement with the experimental results. With the increase of the number of FRP wraps, the bearing capacity of the test piece is gradually increased, but the optimal number of layers is present. With the increase of the axial compression ratio, the bearing capacity of the test piece is improved, but the ductility is reduced. In a certain range of slenderness ratio, the bearing capacity and ductility of the test piece are greatly improved. Under the same working conditions, the two FRP-reinforced RC columns are similar in bearing capacity, ductility and energy consumption. However, considering the price advantage and good mechanical properties, BFRP has a good application prospect in the field of seismic strengthening of concrete structures.

 

关键词:
ABAQUS;FRP;RC柱;抗震性能;结构加固
扫二维码用手机看
未找到相应参数组,请于后台属性模板中添加

(1)与未加固试件相比,除长细比过大或过小试件,采用FRP加固后的试件其滞回曲线均较饱满。
(2)随着FRP加固层数的增加,滞回曲线愈加饱满,变形能力增强,且峰值荷载过后有着较长且平缓的下降段,延性更好。 

(3)相同工况下,BFRP加固试件较CFRP加固试件可提供更好的延性及耗能能力,但承载力提升幅度略低于后者。
(4)综合考虑BFRP生产自主化、国产化及较高的性价比,BFRP在混凝土结构抗震加固领域有较好的应用前景。

[1] TENG J G,CHEN J F,SMITH S T,et al.Behaviour and strength of FRP-strengthened RC structures: a state-of-the-art review[J].Proceedings of the Institution of Civil Engineers-structures Buildings,2003,156(1):51-62.
[2] XIAO Y.Applications of FRP composites in concrete columns[J].Advances in Structural Engineering,2004(4):335-343.
[3] HOLLAWAY L C,TENG J G.Strengthening and rehabilitation of civil infrastructures using fibre-reinforced polymer (FRP) composites[M].Woodhead Publishing,2008.
[4] 吴刚,胡显奇,蒋剑彪,等.连续玄武岩纤维在墩柱抗震加固中的应用研究[C].2005年全国FRP与结构加固学术会议论文集,2005.
[5] 许成祥,卢梦潇,炳杨,等.碳纤维布加固震损型钢混凝土柱抗震性能试验研究[J].土木工程学报,2016,48(S2):51-56.
[6] 毅潘,吴晓飞,曹双寅,等.长期轴压下有初应力的CFRP约束混凝土柱应力-应变关系分析[J].土木工程学报,2016(9):9-19.
[7] 麻胜兰,姜绍飞.CFRP-PVC管混凝土轴压中长柱承载力研究[J].土木工程学报,2014,47(1):99-106.
[8] 陈艳华,张鹏飞,梅杨,等.CFRP加固锈蚀钢筋混凝土柱抗震性能研究[J].土木工程学报,2013,46(S2):196-200.
[9] 王庆利,阳薛,邵永波,等.CFRP约束方钢管混凝土轴压短柱的静力性能研究[J].土木工程学报,2009,44(3):24-31.
[10] 范向前,刘决丁,胡少伟,等.增强混凝土结构断裂力学特性研究[J].混凝土与水泥制品,2018(4):18-21.
[11] 王代,段向攀,王勇智.FRP-混凝土-钢管组合方柱轴心抗压试验研究[J].混凝土与水泥制品,2013(10):39-42.
[12] OUYANG L J,GAO W Y,ZHEN B,et al.Seismic retrofit of square reinforced concrete columns using basalt and carbon fiber-reinforced polymer sheets: A comparative study[J].Composite Structures,2017,162:294-307.
[13] REALFONZO R,NAPOLI A.Cyclic Behavior of RC Columns Strengthened by FRP and Steel Devices[J].Journal of Structural Engineering,2009,135(10):1164-1176.
 

尚聪,马江霖,王崇革,.CFRPBFRP加固RC柱抗震性能比较研究[J].混凝土与水泥制品,2019(9):70-75.

SHANG C,MA J L,WANG C G,et al.Comparative Study on the Seismic Performance of Reinforced Concrete Columns Strengthened with CFRP and BFRP[J].China Concrete and Cement Products,2019

 

相关文件

暂时没有内容信息显示
请先在网站后台添加数据记录。

关注《混凝土与水泥制品》

总访问量 468,401   网站统计

官方微信公众号关闭
苏州混凝土水泥制品研究院有限公司

关于我们    |    联系我们    |    订购杂志    |    回到顶部

版权所有:中国混凝土与水泥制品网  苏ICP备10086386号   网站建设:中企动力 苏州

版权所有:中国混凝土与水泥制品网

苏ICP备10086386号

网站建设:中企动力 苏州