INFLUENCE OF ADDITIONAL Al-RIBS ON LONG-TERM STIFFNESS OF PRE-TENSIONED CONCRETE BEAM REINFORCED WITH PRESTRESSED FRP BARS

SUN Yu; WANG Qiang; TONG Yixuan; ZHU Hong

doi:10.13204/j.gyjzG21042510

Volume 51 Issue 10

Feb. 2022

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(10): 9-13

SUN Yu, WANG Qiang, TONG Yixuan, ZHU Hong. INFLUENCE OF ADDITIONAL Al-RIBS ON LONG-TERM STIFFNESS OF PRE-TENSIONED CONCRETE BEAM REINFORCED WITH PRESTRESSED FRP BARS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 9-13. doi: 10.13204/j.gyjzG21042510

Citation:

SUN Yu, WANG Qiang, TONG Yixuan, ZHU Hong. INFLUENCE OF ADDITIONAL Al-RIBS ON LONG-TERM STIFFNESS OF PRE-TENSIONED CONCRETE BEAM REINFORCED WITH PRESTRESSED FRP BARS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(10): 9-13. doi: 10.13204/j.gyjzG21042510

Citation:

PDF( 4273 KB)

INFLUENCE OF ADDITIONAL Al-RIBS ON LONG-TERM STIFFNESS OF PRE-TENSIONED CONCRETE BEAM REINFORCED WITH PRESTRESSED FRP BARS

doi: 10.13204/j.gyjzG21042510

SUN Yu¹,
WANG Qiang¹,
TONG Yixuan^1,2,
ZHU Hong^{1
,
,}

1. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 211189, China;
2. Dreaming Information Technology Corporation of Shanghai, Shanghai 200051, China

Received Date: 2021-04-25
Available Online: 2022-02-21

Abstract

Abstract

Degradation of long-term bonding performance will cause uncontrollable slippage between FRP bars and concrete. The additional Al-ribs are effective ways to improve bonding performance. In order to study the effect of Al-ribs on restraining the long-term stiffness degradation of prestressed concrete beams reinforced with FRP bars, 6 specimens were designed and fabricated, and short-term and long-term loading tests were carried out in sequence. By comparing the specimens without Al-ribs at the beam ends, the influence of Al-ribs on long-term deflection, slippage of FRP bars and development of crack width was comprehensively studied. The results showed that the additional Al-ribs could significantly inhibit the development of long-term deflection of the members, so that the prestressed concrete beams reinforced with FRP bars maintained good long-term performance. The maximum slippage of the specimens with short Al-ribs(SA) and long Al-ribs(LA) was reduced by 81.3% and 86.7%, respectively, and the slippage of the ribs was significantly suppressed. The crack width near the fixed end of the specimens without Al-ribs was increased by 323.53%, which was much larger than that of the specimens with Al-ribs. The additional Al-ribs had a significant effect on restraining the development of concrete cracks in the shear span area.
- pre-tensioned prestress,
- FRP bar,
- additional Al-rib,
- long-term stiffness

FullText(HTML)

References(18)

References

[1]	尹世平, 华云涛, 徐世烺.FRP配筋混凝土结构研究进展及其应用[J].建筑结构学报, 2021, 42(1):134-150.
[2]	SEN R, MULLINS G.Application of FRP Composites for Underwater Piles Repair[J].Compos.Part B:Eng., 2007, 38(5/6):751-758.
[3]	叶列平, 冯鹏.FRP在工程结构中的应用与发展[J].土木工程学报, 2006(3):24-36.
[4]	于钦鹏.折线先张法预应力混凝土T梁受力性能及工程应用研究[D].哈尔滨:哈尔滨工业大学, 2019.
[5]	薛伟辰, 郑乔文, 杨雨.黏砂变形GFRP筋黏结性能研究[J].土木工程学报, 2007(12):59-68.
[6]	郑乔文, 薛伟辰.粘砂变形GFRP筋的粘结滑移本构关系[J].工程力学, 2008(9):162-169.
[7]	黎健.复材筋附加肋的成型方法及对锚固性能的影响研究[D].南京:东南大学, 2017.
[8]	苏伟强.先张法预应力复材筋混凝土梁受力性能试验研究[D].南京:东南大学, 2019.
[9]	ZHANG B, ZHU H, WU G, et al.Improvement of Bond Performance Between Concrete and CFRP Bars with Optimized Additional Aluminum Ribs Anchorage[J/OL].Construction and Building Materials.2020, 241.https://doi.org/10.1016/j.conbuildmat.2020.118012.
[10]	胡修秀.复材筋嵌入式加固体系界面粘结性能研究[D].南京:东南大学, 2017.
[11]	LI T, ZHU H, WANG Q, et al.Experimental Study on the Enhancement of Additional Ribs to the Bond Performance of FRP Bars in Concrete[J].Construction and Building Materials, 2018, 185(10):545-554.
[12]	WANG Q, ZHU H, LI T, et al.Bond Performance of NSM FRP Bars in Concrete with an Innovative Additional Ribs Anchorage System:An Experimental Study[J].Construction and Building Materials, 2019, 207(5):572-584.
[13]	WANG Q, LI T, ZHU H, et al.Bond Enhancement for NSM FRP Bars in Concrete Using Different Anchorage Systems[J/OL].Construction and Building Materials.2020, 246.https://doi.org/10.1016/j.conbuildmat.2020.118316.
[14]	黎健, 李婷, 朱虹, 等.附加肋提升复材筋锚固性能的试验研究[J].南京工业大学学报(自然科学版), 2017, 39(5):51-56.
[15]	苏伟强, 李婷, 朱虹, 等.钢丝网砂浆层和附加肋提升嵌入式复材筋锚固性能试验研究[J].东南大学学报(自然科学版), 2018, 48(4):692-698.
[16]	郭小农, 沈祖炎, 李元齐, 等.国产结构用铝合金材料本构关系及物理力学性能研究[J].建筑结构学报, 2007, 28(6):110-117.
[17]	ZOU P X W.Long-Term Properties and Transfer Length of Fiber-Reinforced Polymers[J].Journal of Composites for Construction, 2003, 7(1):10-19.
[18]	中国冶金建设协会.纤维增强复合材料建设工程应用技术规范:GB 50608-2010[S].北京:中国计划出版社, 2011.

Relative Articles

[1]	LI Xingyu, WANG Xiaofeng, ZHAO Guangjun, WANG Shaoqin, JIA Yue. Research on Crack Calculation Method of Pretensioning Prestressed Concrete Composite Beams[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(10): 46-52. doi: 10.13204/j.gyjzG22122906
[2]	YI Ju, WANG Lei, LEI Ming, HU Zhuo, TU Ronghui. Research on Transfer Length of Pretensioned Prestressed Concrete Members Under Corrosion[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 44-50. doi: 10.13204/j.gyjzG22042520
[3]	HUANG Teng, ZHANG Dongdong, HUANG Yaxin, LIN Yuan, ZHANG Fukai, YUAN Jiaxin. RESEARCH ON METHODS FOR PREDICTING BEARING PERFORMANCE OF CFRP-ALUMINUM LAMINATE BEAM WITH DOUBLE-CHANNEL CROSS SECTION[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(6): 198-205,197. doi: 10.13204/j.gyjzG20111816
[4]	LU Chunling, ZHANG Zheming, LI Bolin, WANG Peng. EXPERIMENTAL RESEARCH ON STRESS LOSS OF LARGE-SIZED CONCRETE COLUMNS STRENGTHENED WITH PRESTRESSED CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(6): 175-182. doi: 10.13204/j.gyjz202006028
[5]	CHEN Hua, CHEN Yaojia, XIE Bin, DENG Langni. STUDY OF BENDING BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH NEAR-SURFACE-MOUNTED PRESTRESSED CFRP RODS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(9): 168-173. doi: 10.13204/j.gyjz201908210007
[12]	Li Xiaofen Liu Lixin Zhang Huipeng, . EXPERIMENTAL STUDY OF FATIGUE BEHAVIOR OF THE PRESTRESSED CONCRETE BEAMS WITH PRETENSIONED BENT-UP TENDONS[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(7): 95-101. doi: 10.13204/j.gyjz201507020
[13]	Chen Meng, Fu Ruijia, Wang Baochao, Liu Lixin. AN EXPERIMENTAL STUDY ON PRESTRESSED TRANSIMISSION LENGTH FOR PRESTRESSED HELICAL RIBBED BAR[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(7): 39-42. doi: 10.13204/j.gyjz201307010
[14]	Huan Xianbin, En Wenhai. STUDY ON HOLLOW BEAM TECHNOLOGY OF THE PRETENSIONED PRESTRESSING CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(5): 68-70. doi: 10.13204/j.gyjz200905014
[15]	Pan Yudi. THE EXPERIMENTAL RESEARCH ON THE STIFFNESS OF PRESTRESSED CONCRETE BEAMS UNDER LONG-TERM VARIABLE LOADS[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(5): 50-53. doi: 10.13204/j.gyjz200805011
[16]	Wang Cheng, Ling Daosheng. ANALYSIS OF INFLUENCE OF THE RAFT RIGIDITY ON THE SUBSTRATUM'S ADDITIONAL STRESS OF THE PILED RAFT FOUNDATION[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(5): 5-9,15. doi: 10.13204/j.gyjz200505002
[17]	Tang Guanzuo, Wang Qing, Yu Qi. DISCUSSION ON CALCULATING METHOD OF CRACKING RESISTANCE AND ULTIMATE BENDING MOMENT OF PRETENSIONED SPUN CONCRETE PILES[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(1): 57-59. doi: 10.13204/j.gyjz200401016

Supplements(0)

Cited By

Cited by

Periodical cited type(2)

1.	毕超豪，赖华铭，张耿斌，颜天佑，何瑞，肖淑华，刘润安，卓柯先，蔡培德，郭永昌. 地聚物混凝土-玻璃纤维增强复合材料筋界面黏结行为的梁式试验研究. 工业建筑. 2024(06): 46-53 . 本站查看
2.	栾喜象，臧健，刘琼，李媛媛. 钢筋混凝土梁持续荷载下的疲劳性能分析. 混凝土世界. 2024(09): 56-60 .