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
超高强钢筋ECC柱轴心受压试验研究
Experimental Study on Axial Compression of ECC Columns with Ultra-high Strength Reinforced Steel
2020年第10期
超高强钢筋;高延性水泥基复合材料;轴心受压;应力-应变曲线;泊松比
Ultra-high strength reinforcement bar; ECC; Axial compression; Stress-strain curve; Poisson′s ratio
2020年第10期
10.19761/j.1000-4637.2020.10.051.05
国家自然科学基金项目(51678379)。
汪知文1,李碧雄1,游 杨1,廖 桥1,饶 丹2,余 弦2
1.四川大学 建筑与环境学院,四川 成都 610065;2.成都建工集团有限公司,四川 成都 610031

汪知文1,李碧雄1,游 杨1,廖 桥1,饶 丹2,余 弦2

摘   要:对超高强钢筋HRB500与高延性水泥基复合材料(ECC)矩形截面短柱进行了轴心受压试验,研究了配筋率为1.13%、2.26%的超高强钢筋对ECC应力-应变曲线的影响。结果表明:ECC柱在破坏后依然能保持良好的整体性,且裂缝宽度明显低于普通混凝土柱;超高强钢筋ECC柱的纵向钢筋均达到屈服强度,极限承载力和极限竖向应变均大于普通混凝土试件;超高强钢筋与ECC混凝土之间的协同性明显优于普通混凝土;ECC柱的泊松比随着加载的进行先逐渐变小,然后有一定程度的增加。

Abstract: The axial compression test of HRB500 and ECC rectangular section short column was carried out, and the effect of HRB500 with reinforcement ratio of 1.13% and 2.26% on the stress-strain curve of ECC column was studied. The results show that the ECC column can still maintain good integrity after failure, and the crack width is obviously lower than that of ordinary concrete column. The longitudinal reinforcement of ultra-high strength steel bar ECC column can reach yield strength, and the ultimate bearing capacity and ultimate vertical strain of ECC column are larger than those of ordinary concrete column. The synergy between ultra-high strength steel bar and ECC concrete is obviously better than that of ordinary concrete. The Poisson′s ratio of ECC column gradually decreases as the loading progresses, and then increases to some extent.

汪知文,李碧雄,游杨,等.超高强钢筋ECC柱轴心受压试验研究[J].混凝土与水泥制品,2020(10):51-54.

WANG Z W,LI B X,YOU Y,et al.Experimental Study on Axial Compression of ECC Columns with Ultra-high Strength Reinforced Steel[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):51-54.

浏览量:
1000
摘   要:对超高强钢筋HRB500与高延性水泥基复合材料(ECC)矩形截面短柱进行了轴心受压试验,研究了配筋率为1.13%、2.26%的超高强钢筋对ECC应力-应变曲线的影响。结果表明:ECC柱在破坏后依然能保持良好的整体性,且裂缝宽度明显低于普通混凝土柱;超高强钢筋ECC柱的纵向钢筋均达到屈服强度,极限承载力和极限竖向应变均大于普通混凝土试件;超高强钢筋与ECC混凝土之间的协同性明显优于普通混凝土;ECC柱的泊松比随着加载的进行先逐渐变小,然后有一定程度的增加。 Abstract: The axial compression test of HRB500 and ECC rectangular section short column was carried out, and the effect of HRB500 with reinforcement ratio of 1.13% and 2.26% on the stress-strain curve of ECC column was studied. The results show that the ECC column can still maintain good integrity after failure, and the crack width is obviously lower than that of ordinary concrete column. The longitudinal reinforcement of ultra-high strength steel bar ECC column can reach yield strength, and the ultimate bearing capacity and ultimate vertical strain of ECC column are larger than those of ordinary concrete column. The synergy between ultra-high strength steel bar and ECC concrete is obviously better than that of ordinary concrete. The Poisson′s ratio of ECC column gradually decreases as the loading progresses, and then increases to some extent.
英文名 : Experimental Study on Axial Compression of ECC Columns with Ultra-high Strength Reinforced Steel
刊期 : 2020年第10期
关键词 : 超高强钢筋;高延性水泥基复合材料;轴心受压;应力-应变曲线;泊松比
Key words : Ultra-high strength reinforcement bar; ECC; Axial compression; Stress-strain curve; Poisson′s ratio
刊期 : 2020年第10期
DOI : 10.19761/j.1000-4637.2020.10.051.05
文章编号 :
基金项目 : 国家自然科学基金项目(51678379)。
作者 : 汪知文1,李碧雄1,游 杨1,廖 桥1,饶 丹2,余 弦2
单位 : 1.四川大学 建筑与环境学院,四川 成都 610065;2.成都建工集团有限公司,四川 成都 610031

汪知文1,李碧雄1,游 杨1,廖 桥1,饶 丹2,余 弦2

摘   要:对超高强钢筋HRB500与高延性水泥基复合材料(ECC)矩形截面短柱进行了轴心受压试验,研究了配筋率为1.13%、2.26%的超高强钢筋对ECC应力-应变曲线的影响。结果表明:ECC柱在破坏后依然能保持良好的整体性,且裂缝宽度明显低于普通混凝土柱;超高强钢筋ECC柱的纵向钢筋均达到屈服强度,极限承载力和极限竖向应变均大于普通混凝土试件;超高强钢筋与ECC混凝土之间的协同性明显优于普通混凝土;ECC柱的泊松比随着加载的进行先逐渐变小,然后有一定程度的增加。

Abstract: The axial compression test of HRB500 and ECC rectangular section short column was carried out, and the effect of HRB500 with reinforcement ratio of 1.13% and 2.26% on the stress-strain curve of ECC column was studied. The results show that the ECC column can still maintain good integrity after failure, and the crack width is obviously lower than that of ordinary concrete column. The longitudinal reinforcement of ultra-high strength steel bar ECC column can reach yield strength, and the ultimate bearing capacity and ultimate vertical strain of ECC column are larger than those of ordinary concrete column. The synergy between ultra-high strength steel bar and ECC concrete is obviously better than that of ordinary concrete. The Poisson′s ratio of ECC column gradually decreases as the loading progresses, and then increases to some extent.

汪知文,李碧雄,游杨,等.超高强钢筋ECC柱轴心受压试验研究[J].混凝土与水泥制品,2020(10):51-54.

WANG Z W,LI B X,YOU Y,et al.Experimental Study on Axial Compression of ECC Columns with Ultra-high Strength Reinforced Steel[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):51-54.

摘要
参数
结论
参考文献
引用本文

摘   要:对超高强钢筋HRB500与高延性水泥基复合材料(ECC)矩形截面短柱进行了轴心受压试验,研究了配筋率为1.13%、2.26%的超高强钢筋对ECC应力-应变曲线的影响。结果表明:ECC柱在破坏后依然能保持良好的整体性,且裂缝宽度明显低于普通混凝土柱;超高强钢筋ECC柱的纵向钢筋均达到屈服强度,极限承载力和极限竖向应变均大于普通混凝土试件;超高强钢筋与ECC混凝土之间的协同性明显优于普通混凝土;ECC柱的泊松比随着加载的进行先逐渐变小,然后有一定程度的增加。

Abstract: The axial compression test of HRB500 and ECC rectangular section short column was carried out, and the effect of HRB500 with reinforcement ratio of 1.13% and 2.26% on the stress-strain curve of ECC column was studied. The results show that the ECC column can still maintain good integrity after failure, and the crack width is obviously lower than that of ordinary concrete column. The longitudinal reinforcement of ultra-high strength steel bar ECC column can reach yield strength, and the ultimate bearing capacity and ultimate vertical strain of ECC column are larger than those of ordinary concrete column. The synergy between ultra-high strength steel bar and ECC concrete is obviously better than that of ordinary concrete. The Poisson′s ratio of ECC column gradually decreases as the loading progresses, and then increases to some extent.

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)CON柱在轴心受压破坏时通常发生混凝土剥落情况,裂缝开展充分;而ECC柱在受压破坏时能保持良好的完整性,未出现混凝土剥落现象,且裂缝宽度明显小于CON柱。
(2)ECC柱中的纵向受力钢筋与混凝土表面的荷载-应变曲线几乎重合;相比于普通混凝土,ECC混凝土与超高强钢筋的协同性更好。
(3)CON柱在轴心受压加载过程中的泊松比保持在0.17左右;ECC柱的泊松比随着加载的进行逐渐变小,当试件接近破坏时,泊松比又有一定增加。

(4)ECC混凝土与高强钢筋组合时,纵向受力钢筋能达到屈服状态,实际抗压承载力超过计算极限承载力,可为高强钢筋与ECC混凝土结构设计及抗震设计提供参考。
 

[1]    LI V C,LEUNG C K Y.Steady-State and Multiple Cracking of Short Random Fiber Composites[J].Journal of Engineering Mechanics,1992,118(11):2246-2264.
[2] 徐世烺,李贺东.超高韧性水泥基复合材料研究进展及其工程应用[J].土木工程学报,2008(6):45-60.
[3] LI C Q.Initiation of Chloride-Induced Reinforcement Corrosion in Concrete Structural Members-Experimentation[J]. Aci Structural Journal,2001,98(4):502-510.
[4] 张君,公成旭.高韧性纤维增强水泥基复合材料单轴抗拉性能研究[C]//大连理工大学.第十一届全国纤维混凝土学术会议论文集.大连:大连理工大学出版社,2006.
[5] 陈伟康.国产PVA纤维增强水泥基复合材料制备及其力学性能研究[D].扬州:扬州大学,2016.
[6] 胡春红,高艳娥,丁万聪.超高韧性水泥基复合材料受压性能试验研究[J].建筑结构学报,2013,34(12):128-132.
[7] ZHOU J J,PAN J L,LEUNG C K Y.Mechanical Behavior of Fiber-Reinforced Engineered Cementitious Composites in Uniaxial Compression[J].Journal of Materials in Civil Engineering,2015,27(1):04014111.
[8] SAID S H,RAZAK H A,OTHMAN I.Flexural behavior of engineered cementitious composite (ECC) slabs with polyvinyl alcohol fibers[J].Construction and Building Materials,2015,75:176-188.
[9] 王玉清,孙亮,刘曙光,等.PVA-ECC受压弹性模量及泊松比试验研究[J].混凝土,2018(10):17-21.
[10] SIRIJAROONCHAI K,EL-TAWIL S,PARRA-MONTESINOS G.Behavior of high performance fiber reinforced cement composites under multi-axial compressive loading[J]. Cement and Concrete Composites,2010,32(1):62-72.
[11] 潘钻峰,汪卫,孟少平,等.混杂聚乙烯醇纤维增强水泥基复合材料力学性能[J].同济大学学报(自然科学版),2015,43(1):33-40.
[12] 李碧雄,廖桥,章一萍,等.超高强钢筋工程用水泥基复合材料梁受弯计算理论[J].吉林大学学报(工学版),2019,49(4):1153-1161.
[13] 中华人民共和国住房和城乡建设部.混凝土结构试验方法标准:GB/T 50152—2012[S].北京:建筑工业出版社,2012.
[14] 中华人民共和国住房和城乡建设部.混凝土结构设计规范(2015年版):GB 50010—2010[S].北京:建筑工业出版社,2010.

汪知文,李碧雄,游杨,.超高强钢筋ECC柱轴心受压试验研究[J].混凝土与水泥制品,2020(10):51-54.

WANG Z W,LI B X,YOU Y,et al.Experimental Study on Axial Compression of ECC Columns with Ultra-high Strength Reinforced Steel[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):51-54.

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