Bond-slip model of GFRP bars/ECC interface in alkaline-saline or freeze-thaw environments

WU Lili; WANG Hui; XU Xiang; LIN Zhibin

doi:10.13801/j.cnki.fhclxb.20220706.001

Volume 40 Issue 5

May 2023

Turn off MathJax

Article Contents

Article Navigation > Acta Materiae Compositae Sinica > 2023 > 40(5): 2859-2875

WU Lili, WANG Hui, XU Xiang, et al. Bond-slip model of GFRP bars/ECC interface in alkaline-saline or freeze-thaw environments[J]. Acta Materiae Compositae Sinica, 2023, 40(5): 2859-2875. doi: 10.13801/j.cnki.fhclxb.20220706.001

Citation:

WU Lili, WANG Hui, XU Xiang, et al. Bond-slip model of GFRP bars/ECC interface in alkaline-saline or freeze-thaw environments[J]. Acta Materiae Compositae Sinica, 2023, 40(5): 2859-2875. doi: 10.13801/j.cnki.fhclxb.20220706.001

Citation:

PDF( 8406 KB)

Bond-slip model of GFRP bars/ECC interface in alkaline-saline or freeze-thaw environments

doi: 10.13801/j.cnki.fhclxb.20220706.001

WU Lili^{1
,
,},
WANG Hui¹,
XU Xiang¹,
LIN Zhibin²

1.
School of Mechanics and Civil Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
2.
Department of Civil and Environmental Engineering, North Dakota State University, Fargo ND, 58108-6050, USA

Received Date: 2022-05-19
Accepted Date: 2022-06-23
Rev Recd Date: 2022-06-19

Available Online: 2022-07-06

Publish Date: 2023-05-15

Abstract

Abstract

The bond-slip constitutive model is often used to describe the interface behavior of glass fiber reinforced polymer (GFRP) bars to engineered cementitious composite (ECC). Although significant efforts have been made on the bond-slip relation of GFRP bar to normal concrete, few studies have focused on GFRP bar/ECC interface, particularly in the exposure of some special environments, including alkaline-saline conditions or freeze-thaw cycling. Therefore, this study aims to derive the bond-slip model for GFRP bar to ECC material in these environments through experimental and analytical study. 66 GFRP bar/concrete specimens were designed to gain an understanding of critical factors, including surface treatment of GFRP bars, matrix types and concrete strength, under three different conditions (i.e., ambient environment, alkaline-saline solution, and freeze-thaw cycles), on how to affect the failure modes, bond mechanism and bond-slip curves. The test results show that the pullout failures with cracks mainly occur on ribbed GFRP bar/ECC specimens. After freeze-thaw cycles, ribbed GFRP bar/normal concrete specimens change from splitting failure to pullout failure with cracks; The slope of bond-slip curves decreases. The residual branch curves of the specimens destroyed by pullout failure or pullout failure with crack attenuate in wave mode, and the difference of slips between the peak residual stresses is about a rib spacing of GFRP bar. And the difference of slips between the peak residual stresses is about a rib spacing of GFRP bar. In addition, the bond-slip curves were fitted with the existing bond-slip models. According to the fitting results and the actual bond-slip characteristics of GFRP bar/ECC interface under three different environments, a bond-slip model containing parameters A, B and α was proposed, and the fitting correlation coefficient R² was above 0.9, and the values of parameters A, B and α were concentrated in the range of −0.6-0.2, −0.1-0.1 and −0.6-−0.3, respectively. In addition, the accuracy and effectiveness of the proposed model were further verified using previous data from the literature.
- engineered cementitious composite,
- glass fiber reinforced polymer bar,
- freeze-thaw cycle,
- alkaline-saline erosion,
- bond mechanism,
- bond-slip model
Long Abstrsct
Innovation Points

FullText(HTML)

References(36)

References

[1]	ZHANG P, SU Y L, LIU Y, et al. Flexural behavior of GFRP reinforced concrete beams with CFRP grid-reinforced ECC stay-in-place formworks[J]. Composite Structures,2021,277:114653. doi: 10.1016/j.compstruct.2021.114653
[2]	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. doi: 10.3321/j.issn:1000-131X.2006.03.004 YE Lieping, FENG Peng. Applications and development of fiber-reinforced polymer in engineering structures[J]. China Civil Engineering Journal,2006(3):24-36(in Chinese). doi: 10.3321/j.issn:1000-131X.2006.03.004
[3]	宣广宇, 陆春华, 徐可, 等. 不同侵蚀环境下GFRP筋抗拉性能退化试验[J]. 哈尔滨工业大学学报, 2020, 52(8):161-168. doi: 10.11918/201908057 XUAN Guangyu, LU Chunhua, XU Ke, et al. Experiment on tensile properties of GFRP bars exposed to different aggres-sive environments[J]. Journal of Harbin Institute of Technology,2020,52(8):161-168(in Chinese). doi: 10.11918/201908057
[4]	吕西林, 周长东, 金叶. 火灾高温下GFRP筋和混凝土粘结性能试验研究[J]. 建筑结构学报, 2007(5):32-39, 88. doi: 10.3321/j.issn:1000-6869.2007.05.004 LYU Xilin, ZHOU Changdong, JIN Ye. Test study on bond behavior between GFRP bar and concrete in high temperature[J]. Journal of Building Structures,2007(5):32-39, 88(in Chinese). doi: 10.3321/j.issn:1000-6869.2007.05.004
[5]	王磊, 李威, 陈爽, 等. 海水浸泡对FRP筋-珊瑚混凝土粘结性能的影响[J]. 复合材料学报, 2018, 35(12):3458-3465. WANG Lei, LI Wei, CHEN Shuang, et al. Effects of sea water soaking on the bonding properties of FRP bars-coral concrete[J]. Acta Materiae Compositae Sinica,2018,35(12):3458-3465(in Chinese).
[6]	陆新征, 叶列平, 滕锦光, 等. FRP-混凝土界面粘结滑移本构模型[J]. 建筑结构学报, 2005(4):10-18. doi: 10.3321/j.issn:1000-6869.2005.04.002 LU Xinzheng, YE Lieping, TENG Jinguang, et al. Bond-slip model for FRP-to-concrete interface[J]. Journal of Building Structures,2005(4):10-18(in Chinese). doi: 10.3321/j.issn:1000-6869.2005.04.002
[7]	WU L L, XU X, WANG H, et al. Experimental study on bond properties between GFRP bars and self-compacting concrete[J]. Construction and Building Materials,2022,320:126186. doi: 10.1016/j.conbuildmat.2021.126186
[8]	郝庆多, 王言磊, 侯吉林, 等. GFRP带肋筋粘结性能试验研究[J]. 工程力学, 2008(10):158-165, 179. HAO Qingduo, WANG Yanlei, HOU Jilin, et al. Experimental study on bond behavior of GFRP ribbed rebars[J]. Engineering Mechanics,2008(10):158-165, 179(in Chinese).
[9]	张黎飞, 郑愚, 胡少伟, 等. 玻璃纤维复材筋与水泥基复合材料界面力学性能试验研究及精细化有限元仿真[J]. 工业建筑, 2019, 49(9):10-17. ZHANG Lifei, ZHENG Yu, HU Shaowei, et al. Investigation of mechanical properties of GFRP and ECC interface and refined finite element simulation[J]. Industrial Construction,2019,49(9):10-17(in Chinese).
[10]	MAZAHERIPOUR H, BARROS J, SENA-CRUZ J M, et al. Experimental study on bond performance of GFRP bars in self-compacting steel fiber reinforced concrete[J]. Composite Structures,2013,95(1):202-212.
[11]	FAHMY M, AHMED S, WU Z. Bar surface treatment effect on the bond-slip behavior and mechanism of basalt FRP bars embedded in concrete[J]. Construction and Building Materials,2021,289:122844. doi: 10.1016/j.conbuildmat.2021.122844
[12]	NEPOMUCENO E, SENA-CRUZ J, CORREIA L, et al. Review on the bond behavior and durability of FRP bars to concrete[J]. Construction and Building Materials,2021,287:123042. doi: 10.1016/j.conbuildmat.2021.123042
[13]	ALACHEK I, REBOUL N, JURKIEWIEZ B. Bond strength’s degradation of GFRP-concrete elements under aggressive exposure conditions[J]. Construction and Building Materials,2018,179:512-525. doi: 10.1016/j.conbuildmat.2018.05.249
[14]	BAZLI M, ASHRAFI H, OSKOUEI A V. Experiments and probabilistic models of bond strength between GFRP bar and different types of concrete under aggressive environments[J]. Construction and Building Materials,2017,148:429-443. doi: 10.1016/j.conbuildmat.2017.05.046
[15]	张海霞, 朱天泽, 黄妍. 盐腐蚀环境下内嵌FRP筋加固混凝土界面黏结性能试验研究[J]. 建筑结构学报, 2021, 42(S1):433-441. ZHANG Haixia, ZHU Tianze, HUANG Yan. Experimental study on interface bond behavior of concrete strengthened with NSM FRP bars under salt corrosion environment[J]. Journal of Building Structures,2021,42(S1):433-441(in Chinese).
[16]	ZHOU Y W, FU H K, LI P D, et al. Bond behavior between steel bar and engineered cementitious composite (ECC) considering lateral FRP confinement: Test and modeling[J]. Composite Structures,2019,226(C):111206.
[17]	SINGH M, SAINI B, CHALAK H D. Performance and composition analysis of engineered cementitious composite (ECC) – A review[J]. Journal of Building Engineering,2019,26:100851. doi: 10.1016/j.jobe.2019.100851
[18]	陈剑. GFRP筋与纤维混凝土粘结滑移试验研究[D]. 大连: 大连理工大学, 2008. CHEN Jian. The experimental research on bond-slip performance of GFRP bars embedded in fiber reinforced concrete[D]. Dalian: Dalian University of Technology, 2008(in Chinese).
[19]	吴丽丽, 琚祥凯, 丛琪明, 等. 冻融循环后GFRP筋与ECC粘结性能试验研究[J]. 华南理工大学学报(自然科学版), 2019, 47(12):53-61. WU Lili, JU Xiangkai, CONG Qiming, et al. Experimental study of bonding properties between GFRP bars and ECC after freezing-melting circulation[J]. Journal of South China University of Technology (Natural Science Edition),2019,47(12):53-61(in Chinese).
[20]	郝润奇. GFRP筋与纤维混凝土粘结性能研究[D]. 西安: 长安大学, 2019. HAO Runqi. Study on bond properties of GFRP bars and fiber concrete[D]. Xi'an: Chang'an University, 2019(in Chinese).
[21]	孙丽, 杨泽宇, 朱春阳, 等. GFRP筋纤维混凝土黏结滑移性能试验研究[J]. 土木工程学报, 2020, 53(S2):259-264. doi: 10.15951/j.tmgcxb.2020.s2.039 SUN Li, YANG Zeyu, ZHU Chunyang, et al. Study on bonding properties of reinforced composite concrete structure with fiber materials[J]. China Civil Engineering Journal,2020,53(S2):259-264(in Chinese). doi: 10.15951/j.tmgcxb.2020.s2.039
[22]	吴丽丽, 王云飞, 谢灵慧, 等. 玻璃纤维增强聚合物复合材料筋与工程水泥基复合材料黏结性能[J]. 复合材料学报, 2020, 37(3):696-706. doi: 10.13801/j.cnki.fhclxb.20190729.001 WU Lili, WANG Yunfei, XIE Linghui, et al. Bonding behavior between glass fiber reinforced polymer composite bars and engineered cementitious composite[J]. Acta Materiae Compositae Sinica,2020,37(3):696-706(in Chinese). doi: 10.13801/j.cnki.fhclxb.20190729.001
[23]	回祥硕. GFRP筋与纤维混凝土的粘结性能研究[D]. 沈阳: 沈阳建筑大学, 2018. HUI Xiangshuo. Research on bond behavior of GFRP bar and fiber reinforced concrete[D]. Shenyang: Shenyang Jianzhu University, 2018(in Chinese).
[24]	MALVAR L J. Bond stress-slip characteristics of FRP rebars, Rep TR 2012-SHR[R]. Port Hueneme: Naval Facilities Engineering Service Center, 1994.
[25]	ELIGEHAUSEN R, POPOV E P, BERTERO V V. Local bond stress-slip relationships of deformed bars under genera-lized excitations: Experimental results and analytical model[R]. Berkeley: Earthquake Engineering Research Center, University of California, 1983.
[26]	COSENZA E, MANFREDI G, REALFONZO R. Analytical modelling of bond between FRP reinforcing bars and concrete[C]//“Non-Metallic (FRP) Reinforcement for Concrete Structures”-Proceedings of the Second International RILEM Symposium (FRPRCS-2). Ghent: RILEM Publications, 1995.
[27]	COSENZA E, MANFREDI G, REALFONZO R. Behavior and modeling of bond of FRP rebars to concrete[J]. Journal of Composites for Construction,1997,1(2):40-51. doi: 10.1061/(ASCE)1090-0268(1997)1:2(40)
[28]	高丹盈, 朱海堂, 谢晶晶. 纤维增强塑料筋混凝土粘结滑移本构模型[J]. 工业建筑, 2003, 33(7): 41-43, 82. GAO Danying, ZHU Haitang, XIE Jingjing. The constitutive models for bond slip relation between FRP rebars and concrete[J]. Industrial Construction, 2003, 33(7): 41-43, 82(in Chinese).
[29]	YAN F, LIN Z, ZHANG D, et al. Experimental study on bond durability of glass fiber reinforced polymer bars in concrete exposed to harsh environmental agents: Freeze-thaw cycles and alkaline-saline solution[J]. Composites Part B: Engineering ,2016,116:406-421.
[30]	大连理工大学. 纤维混凝土试验方法标准: CECS 13: 2009[S]. 北京: 中国计划出版社, 2009. Dalian University of Technology. Standard test methods for fiber reinforced concrete: CECS 13: 2009[S]. Beijing: China Planning Press, 2009(in Chinese).
[31]	ASTM. Standard test method for bond strength of fiber reinforced polymer matrix composite bars to concrete by pullout testing: ASTM D7913/D7913 M[S]. West Conshohocken: ASTM International, 2020.
[32]	American Concrete Institute. Guide test methods for fiber-reinforced polymer (FRP) composites for reinforcing or strengthening concrete and masonry structures: ACI 440.3 R[S]. United States: American Concrete Institute, 2012.
[33]	牛全林. 预防盐碱环境中混凝土结构耐久性病害的研究及应用[D]. 北京: 清华大学, 2004. NIU Quanlin. Studies and application of the technology to prevent danger of concrete structure subjected to alkaline saline corrosions[D]. Beijing: Tsinghua University, 2004(in Chinese).
[34]	米向乾. GFRP筋及GFRP筋混凝土柱受压性能研究[D]. 沈阳: 沈阳建筑大学, 2012. MI Xiangqian. Study on the compressive behavior of GFRP bars and GFRP reinforced concrete columns[D]. Shenyang: Shenyang Jianzhu University, 2012(in Chinese).
[35]	KATZ A. Bond mechanism of FRP rebars to concrete[J]. Materials and Structures,1999,32(224):761-768.
[36]	BELARBI A, WANG H. Bond durability of FRP bars embedded in fiber-reinforced concrete[J]. Journal of Composites for Construction,2012,16(4):371-380. doi: 10.1061/(ASCE)CC.1943-5614.0000270