碱冻耦合作用FRP加固混凝土性能损伤机理

doi:10.13229/j.cnki.jdxbgxb.20231016

摘要/Abstract

摘要：

探究了碳/玄武岩/玻璃/芳纶纤维增强混凝土在强碱溶液和冻融耦合作用下的劣化规律，对圆柱轴压构件采用纤维增强复合材料（FRP）全加固，棱柱受弯构件为局部加固，测试碱冻耦合作用下试件的质量损失率、动弹性模量、pH值变化、抗压和抗折强度。结果表明，碳纤维和芳纶纤维强化试件在质量损失率、动弹性模量、抗压强度损失和塑性、抗折承载力损失均优于玻璃纤维和玄武岩纤维强化试件。基于试验数据修正了碱冻耦合作用FRP加固混凝土的Lam-Teng本构模型。

关键词: 结构工程, 纤维复合材料, 混凝土, 耐久性

Abstract:

The degradation law of carbon/basalt/glass/aramid fiber-reinforced concrete under strong alkali solution and freeze-thaw coupling was explored. Fiber reinforced polymer （FRP） was used for full reinforcement of cylindrical axial compression members， and local reinforcement was used for prismatic bending members. The mass loss rate， dynamic elastic modulus， pH value change， compressive and flexural strength of the specimens under alkali frost coupling were tested. The results show that carbon fiber and aramid fiber reinforced specimens have better quality loss rate， dynamic elastic modulus， compressive strength loss， plasticity， and flexural bearing capacity loss than glass fiber and basalt fiber reinforced specimens. Based on experimental data， the Lam Teng constitutive model of FRP reinforced concrete with alkali frost coupling effect was modified.

Key words: structural engineering, fiber composite materials, concrete, durability

中图分类号:

TU375

徐文远,李微,王大洋,纪泳丞. 碱冻耦合作用FRP加固混凝土性能损伤机理[J]. 吉林大学学报(工学版), 2025, 55(6): 2050-2062.

Wen-yuan XU,Wei LI,Da-yang WANG,Yong-cheng JI. Damage mechanism of FRP reinforced concrete under alkali freezing coupling effect[J]. Journal of Jilin University(Engineering and Technology Edition), 2025, 55(6): 2050-2062.

图/表 27

图1

表1

表2

表3

图2

图3

图4

图5

图6

表4

图7

表5

图8

图9

表6

图10

图11

图12

表7

图13

图14

表8

图15

图16

表9

图17

表10

修正Lam-Teng模型方程"

编号	应力应变曲线
P-C	$σ c = E c ε c - (E c ε c c - f C + f 0) 2 4 f 0 ε c 2$ ， $0 ≤ ε c < ε t$ ； $σ c = f 0 + ε c f C - f 0 ε c c 1$ ， $ε t ≤ ε c ≤ ε c c 1$
P-B	$σ c = E c ε c - (E c ε c c - f B + f 0) 2 4 f 0 ε c 2$ ， $0 ≤ ε c < ε t$ ； $σ c = f 0 + ε c f B - f 0 ε c c 2$ ， $ε t ≤ ε c ≤ ε c c 2$
P-G	$σ c = E c ε c - (E c ε c c - f G + f 0) 2 4 f 0 ε c 2$ ， $0 ≤ ε c < ε t$ ； $σ c = f 0 + ε c f G - f 0 ε c c 3$ ， $ε t ≤ ε c ≤ ε c c 3$
P-A	$σ c = E c ε c - (E c ε c c - f A + f 0) 2 4 f 0 ε c 2$ ， $0 ≤ ε c < ε t$ ； $σ c = f 0 + ε c f A - f 0 ε c c 4$ ， $ε t ≤ ε c ≤ ε c c 4$

表10

参考文献 19

[1]	魏亚, 孔维康, 万成, 等. 比色法检测受火后混凝土损伤程度[J]. 吉林大学学报: 工学版, 2021, 51(1):233-244.
	Wei Ya, Kong Wei-kang, Wan Cheng, et al. Colorimetry method in assessing fire-damaged concrete [J]. Journal of Jilin University (Engineering and Technology Edition), 2021,51 (1): 233-244.
[2]	李艺, 姬胜鹏. 冬期施工混杂纤维混凝土宏观性能及微观结构[J]. 吉林大学学报: 工学版, 2019, 49(3): 781-787.
	Li Yi, Ji Sheng-peng. Macro‑properties and microstructure of hybrid fiber reinforced concrete in winter construction [J]. Journal of Jilin University (Engineering and Technology Edition), 2019,49 (3): 781-787.
[3]	Yi Y, Guo S, Li S, et al. Effect of alkalinity on the shear performance degradation of basalt fiber-reinforced polymer bars in simulated seawater sea sand concrete environment[J]. Construction and Building Materials, 2021, 299: No.123957.
[4]	Kim H Y, Park Y H, You Y J, et al. Short-term durability test for GFRP rods under various environmental conditions[J]. Composite Structures, 2008, 83(1): 37-47.
[5]	D'Antino T, Pisani M A, Poggi C. Effect of the environment on the performance of GFRP reinforcing bars[J]. Composites Part B: Engineering, 2018, 141: 123-136.
[6]	宋萌萌, 吴文飞, 周恒. 不同应变率下碳纤维布约束混凝土单轴压缩力学性能试验研究[J]. 复合材料科学与工程, 2023(6): 80-87.
	Song Meng-meng, Wu Wen-fei, Zhou Heng. Experimental study on the mechanical properties of concrete confined by carbon fiber cloth under uniaxial compression at different strain rates [J]. Composites Science and Engineering, 2023(6): 80-87.
[7]	Golham M A, Al-Ahmed A H A. Behavior of GFRP reinforced concrete slabs with openings strengthened by CFRP strips[J]. Results in Engineering, 2023, 18: No.101033.
[8]	Elwakkad N Y, Heiza K M, Mansour W. Experimental study and finite element modelling of the torsional behavior of self-compacting reinforced concrete (SCRC) beams strengthened by GFRP[J]. Case Studies in Construction Materials, 2023, 18: e02123.
[9]	王海良, 王博, 杨新磊, 等. 酸、碱、氯盐对玄武岩纤维布加固钢筋混凝土梁抗弯性能的影响[J]. 建筑结构, 2015, 45(9): 81-85, 55.
	Wang Hai-liang, Wang Bo, Yang Xin-lei, et al. Effect of acid, alkaline, and chlorine salt on the flexural behavior of reinforced concrete beams strengthened by basalt fiber cloth [J]. Building Structure, 2015,45(9): 81-85, 55.
[10]	李江林, 谢建和, 陆中宇, 等. 氯盐环境下碳纤维布加固受损钢筋混凝土构件界面耐久性研究[J]. 工业建筑, 2019, 49(9): 124-129.
	Li Jiang-lin, Xie Jian-he, Lu Zhong-yu, et al. Durability of interface between CFRP and damaged RC members under chloride environment [J]. Industrial Construction, 2019, 49 (9): 124-129.
[11]	Bonacci J F, Maalej M. Externally bonded fiber-reinforced polymer for rehabilitation of corrosion damaged concrete beams[J]. Structural Journal, 2000, 97(5): 703-711.
[12]	Alzeebaree R, Gülsan M E, Nis A, et al. Performance of FRP confined and unconfined geopolymer concrete exposed to sulfate attacks[J]. Steel and Composite Structures, 2018, 29(2): 201-218.
[13]	Kuroda T, Inoue S, Yoshino A, et al. Effects of accelerated test conditions on ASR expansion of concrete core[J]. Bulletin of the Graduate School of Engineering/Faculty of Engineering, Tottori University, 2012, 42: 31-39.
[14]	Guo F, Al-Saadi S, Raman R K S, et al. Durability of fiber reinforced polymer (FRP) in simulated seawater sea sand concrete (SWSSC) environment[J]. Corrosion Science, 2018, 141: 1-13.
[15]	Rybin V A, Utkin А V, Baklanova N I. Corrosion of uncoated and oxide-coated basalt fibre in different alkaline media[J]. Corrosion Science,2016, 102: 503-509.
[16]	Scheffler C, Förster T, Mäder E, et al. Aging of alkali-resistant glass and basalt fibers in alkaline solutions: evaluation of the failure stress by Weibull distribution function[J]. Journal of Non-Crystalline Solids, 2009, 355(52-54): 2588-2595.
[17]	鲁丽华, 陈四利, 宁宝宽, 等. 酸碱和冻融双重腐蚀下混凝土力学效应的试验研究[J]. 公路, 2006(8):154-158.
	Lu Li-hua, Chen Si-li, Ning Bao-kuan, et al. Experimental study on mechanical effects of concrete under acid-base and freeze-thaw dual corrosion [J]. Highway, 2006(8): 154-158.
[18]	Ji Y, Wang D. Durability of recycled aggregate concrete in cold regions[J]. Case Studies in Construction Materials, 2022, 17: e01475.
[19]	Lam L, Teng J G. Strength models for fiber-reinforced plastic-confined concrete[J]. Journal of Structural Engineering,2002, 128(5): 612-623.

相关文章 15

[1]	樊学平,杨渡,李九谕,赵启凡,刘月飞. 温度和车辆荷载耦合产生的桥梁极值应力预测[J]. 吉林大学学报(工学版), 2025, 55(5): 1588-1594.
[2]	梅生启,刘晓东,王兴举,李旭峰,武腾,程相旭. 基于参数相关性分析和机器学习算法的高强混凝土徐变预测[J]. 吉林大学学报(工学版), 2025, 55(5): 1595-1603.
[3]	何子明,申爱琴,王路生,郭寅川,何江飞. 再生骨料强化技术及对再生混凝土性能影响研究综述[J]. 吉林大学学报(工学版), 2025, 55(3): 790-810.
[4]	张亮亮,程桦,王晓健. 常规三轴压缩下高强混凝土能量演化和破坏准则[J]. 吉林大学学报(工学版), 2025, 55(3): 974-985.
[5]	袁杰,王军博,陈歆,黄馨,张傲翔,崔安琪. 人工智能在超高性能混凝土中的应用研究进展[J]. 吉林大学学报(工学版), 2025, 55(3): 771-789.
[6]	周宇,李萌,狄生奎,石贤增,陈东. 变截面两铰拱推力影响线解析解及损伤识别应用[J]. 吉林大学学报(工学版), 2025, 55(2): 664-672.
[7]	王羽岱,王斌,苗福生,马楠. 水热耦合变化下衬砌渠道冻胀响应[J]. 吉林大学学报(工学版), 2025, 55(1): 256-268.
[8]	姜浩,赵正文. 玄武岩纤维网格水泥基复合材料加固RC梁抗剪性能试验[J]. 吉林大学学报(工学版), 2025, 55(1): 211-220.
[9]	曲广雷,闫宗伟,郑木莲,刘红,袁月明. 基于神经网络与回归分析的多孔混凝土性能预测[J]. 吉林大学学报(工学版), 2025, 55(1): 269-282.
[10]	韦芳芳,李丽萍,徐庆鹏,赵有正,杨晶晶. 受火双钢板-混凝土组合剪力墙加固后抗震性能试验[J]. 吉林大学学报(工学版), 2025, 55(1): 230-244.
[11]	杨维国,苏英楠,邹剑强,马若辰,张庆亮. 预制钢管混凝土芯柱新型法兰连接试验与有限元分析[J]. 吉林大学学报(工学版), 2025, 55(1): 283-296.
[12]	王福成,赵欣荣,田家冰,解国梁,周立明. 水稻秸秆灰对混凝土抗压性能及微观结构的影响[J]. 吉林大学学报(工学版), 2024, 54(9): 2620-2630.
[13]	赵金全,周龙,丁永刚,朱熔基. 螺旋箍筋-波纹管浆锚连接锚固性能试验[J]. 吉林大学学报(工学版), 2024, 54(9): 2484-2494.
[14]	朱劲松,佟欣瑶,刘晓旭. 装配式小箱梁桥超高性能混凝土免支模湿接缝抗弯性能[J]. 吉林大学学报(工学版), 2024, 54(9): 2568-2580.
[15]	孙永新,蔺鹏臻,杨子江,冀伟. 考虑黏结-滑移效应的UHPC梁裂缝宽度计算方法[J]. 吉林大学学报(工学版), 2024, 54(9): 2600-2608.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

材料	强度/MPa	弹性模量/GPa	断裂伸长率/%
CFRP	3 520	267	1.78
BFRP	3 000	120	1.60
GFRP	2 500	80	2.3
AFRP	2 106	117.8	1.75
环氧树脂胶	54.3	2.7	2.25

材料	水	水泥	中砂	碎石
材料	水	水泥	中砂	5~10 mm	10~20 mm
含量	209.0	387.0	635.0	350.7	818.3

纤维布类型	碱冻0次	碱冻50次	碱冻100次
CFRP	P-C-F0	P-C-F50	P-C-F100
BFRP	P-B-F0	P-B-F50	P-B-F100
GFRP	P-G-F0	P-G-F50	P-G-F100
AFRP	P-A-F0	P-A-F50	P-G-F100
对照组	C-0	C-50	C-100

组别	质量/kg
组别	冻融0次	冻融50次	冻融100次
P-C	3.645	3.655	3.664
P-G	3.595	3.614	3.623
P-B	3.65	3.662	3.671
P-A	3.645	3.669	3.679
对照组	3.565	3.575	3.425

组别	质量/kg
组别	冻融0次	冻融50次	冻融100次
P-C	9.565	9.575	9.500
P-B	9.615	9.644	9.498
P-A	9.650	9.674	9.566
P-G	9.345	9.383	9.213
对照组	9.450	9.498	9.298