配FRP矩形箍混凝土梁的受剪承载力研究现状

摘要/Abstract

摘要： 钢筋在恶劣环境中极易发生腐蚀,导致混凝土构件的力学性能退化,而采用纤维增强复合材料(FRP)箍代替钢筋能有效规避这个问题。但FRP箍较低的弹性模量使得梁易产生脆性的剪切破坏,同时其各向异性的特点使得FRP箍筋的弯折强度大大低于直线段强度,导致配FRP矩形箍混凝土梁的受剪承载力低于钢筋混凝土梁。近20年来,国内外学者为了探究配FRP矩形箍混凝土梁的实际应用价值,进行了一系列实验研究及理论推导,提出了受剪承载力以及FRP箍筋弯拉强度的计算方法。本文全面总结了上述有关研究成果,并对今后的研究方向进行了展望,以期为该类结构构件的应用发展提供参考。

关键词: FRP箍, 弯折强度, 受剪承载力, 灰度关联分析, 影响因素, 抗剪机理

Abstract: Steel bars are prone to corrosion in harsh environments, resulting in degradation of mechanical properties of concrete members. Replacing steel bars with fiber reinforced polymer (FRP) stirrup can effectively avoid this problem. However, the low elastic modulus of FRP stirrup makes the beams easy to produce brittle shear failure. And the anisotropy makes the bending strength of FRP stirrup much lower than that of the straight section, resulting in the shear capacity of concrete beams with FRP rectangular stirrup being lower than that of reinforced concrete beams. In the past 20 years, in order to explore the practical application value of concrete beams with FRP rectangular stirrup, domestic and foreign scholars have carried out a series of experimental research and theoretical derivation, and put forward the calculation methods of shear bearing capacity and bending strength of FRP stirrup. In this paper, the above research results are summarized comprehensively, and the future research direction is prospected, in order to provide reference for the application and development of this kind of structural members.

Key words: FRP stirrup, bending strength, shear capacity, gray correlation analysis, affecting factor, shear mechanism

中图分类号:

TU375

王锦辉, 陆春华, 冯晨阳, 朱学武. 配FRP矩形箍混凝土梁的受剪承载力研究现状[J]. 硅酸盐通报, 2024, 43(8): 2726-2736.

WANG Jinhui, LU Chunhua, FENG Chenyang, ZHU Xuewu. Research Status on Shear Capacity of Concrete Beams with FRP Rectangular Stirrup[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(8): 2726-2736.

参考文献

[1] TIAN Y, ZHANG G Y, YE H L, et al. Corrosion of steel rebar in concrete induced by chloride ions under natural environments[J]. Construction and Building Materials, 2023, 369: 130504.
[2] GUO X K, XIONG C S, JIN Z Q, et al. A review on mechanical properties of FRP bars subjected to seawater sea sand concrete environmental effects[J]. Journal of Building Engineering, 2022, 58: 105038.
[3] WANG Z H, XIE J H, MAI Z H, et al. Durability of GFRP bar-reinforced seawater-sea sand concrete beams: coupled effects of sustained loading and exposure to a chloride environment[J]. Engineering Structures, 2023, 283: 115814.
[4] LU Z Y, LI W K, ZENG X Y, et al. Durability of BFRP bars and BFRP reinforced seawater sea-sand concrete beams immersed in water and simulated seawater[J]. Construction and Building Materials, 2023, 363: 129845.
[5] ZHANG S, WU B. Effects of salt solution on the mechanical behavior of concrete beams externally strengthened with AFRP[J]. Construction and Building Materials, 2019, 229: 117044.
[6] EL REFAI A, ABED F. Concrete contribution to shear strength of beams reinforced with basalt fiber-reinforced bars[J]. Journal of Composites for Construction, 2016, 20(4).
[7] LIANG K, CHEN L J, SHAN Z W, et al. Experimental and theoretical study on bond behavior of helically wound FRP bars with different rib geometry embedded in ultra-high-performance concrete[J]. Engineering Structures, 2023, 281: 115769.
[8] FAKHARIFAR M, DALVAND A, SHARBATDAR M K, et al. Innovative hybrid reinforcement constituting conventional longitudinal steel and FRP stirrups for improved seismic strength and ductility of RC structures[J]. Frontiers of Structural and Civil Engineering, 2016, 10(1): 44-62.
[9] QIN R Y, ZHOU A, LAU D. Effect of reinforcement ratio on the flexural performance of hybrid FRP reinforced concrete beams[J]. Composites Part B: Engineering, 2017, 108: 200-209.
[10] JUMAA G B, YOUSIF A R, Size effect on the shear failure of high-strength concrete beams reinforced with basalt FRP bars and stirrups[J]. Construction and Building Materials, 2019, 209: 77-94.
[11] DONG H L, WANG D Y, WANG Z Y, et al. Axial compressive behavior of square concrete columns reinforced with innovative closed-type winding GFRP stirrups[J]. Composite Structures, 2018, 192: 115-125.
[12] YUAN Y, WANG Z Y. Shear behavior of large-scale concrete beams reinforced with CFRP bars and handmade strip stirrups[J]. Composite Structures, 2019, 227: 111253.
[13] HADHOOD A, GOUDA M G, AGAMY M H, et al. Torsion in concrete beams reinforced with GFRP spirals[J]. Engineering Structures, 2020, 206: 110174.
[14] 魏星, 刘水, 汪昕, 等. BFRP网格增强水泥砂浆永久模板力学与协同工作性能试验研究[J]. 南京工业大学学报(自然科学版), 2023, 45(2): 202-210.
WEI X, LIU S, WANG X, et al. Experimental study on mechanical and cooperative work performance of BFRP grid reinforced cement mortar permanent formwork[J]. Journal of Nanjing Tech University (Natural Science Edition), 2023, 45(2): 202-210 (in Chinese).
[15] LIANG X Z, PENG J Z, REN R B. A state-of-the-art review: shear performance of the concrete beams reinforced with FRP bars[J]. Construction and Building Materials, 2023, 364: 129996.
[16] LEE C, KO M, LEE Y. Bend strength of complete closed-type carbon fiber-reinforced polymer stirrups with rectangular section[J]. Journal of Composites for Construction, 2014, 18(1): 04013022.
[17] 刘宗全, 岳清瑞, 李荣, 等. 全FRP筋混凝土梁斜截面承载力研究进展[J]. 玻璃钢/复合材料, 2017(1): 109-115+35.
LIU Z Q, YUE Q R, LI R, et al. Research progress on shear strength of concrete beams reinforced with frp rebars and stirrups[J]. Fiber Reinforced Plastics/Composites, 2017(1): 109-115+35 (in Chinese).
[18] 中华人民共和国住房和城乡建设部. 纤维增强复合材料建设工程应用技术规范: GB 50608—2020[S]. 北京: 中国计划出版社, 2011.
Ministry of Housing and Urban Rural Development of the People’s Republic of China. Technical specification for construction engineering application of fiber reinforced composite materials: GB 50608—2020[S]. Beijing: China Planning Press, 2011 (in Chinese).
[19] ACI Committee 440. Guide for the design and construction of structural concrete reinforced with FRP bars: ACI 440.1R—15[S]. Farmington Hills: ACI Committee, 2015.
[20] Japan Society of Civil Engineers. Recommendation for design and construction of concrete structures using continuous fiber reinforcing materials: JSCE 1997[S]. Tokyo: Japan Society of Civil Engineers, 1997.
[21] Canadian Standards Association. Canadian highway bridge design code: CSA S6—06[S]. Toronto: Canadian Standards Association, 2006.
[22] ACI Committee 440. Guide test methods for fiber-reinforced polymer (FRP) composites for reinforcing or strengthening concrete and masonry structures: ACI 440-3R—12[S]. Farmington Hills: ACI Committee, 2012.
[23] AHMED E A, EL-SAYED A K, EL-SALAKAWY E, et al. Bend strength of FRP stirrups: comparison and evaluation of testing methods[J]. Journal of Composites for Construction, 2010, 14(1): 3-10.
[24] JEONG C Y, KIM H G, KIM S W, et al. Size effect on concrete shear strength in beams reinforced with fiber-reinforced polymer bars[J]. ACI Structural Journal, 2013, 110(4): 582-594.
[25] RAZAQPUR A G, SHEDID M, ISGOR B. Shear strength of fiber-reinforced polymer reinforced concrete beams subject to unsymmetric loading[J]. Journal of Composites for Construction, 2011, 15(4): 500-512.
[26] AL-HAMRANI A, ALNAHHAL W, ELAHTEM A. Shear behavior of green concrete beams reinforced with basalt FRP bars and stirrups[J]. Composite Structures, 2021, 277: 114619.
[27] 宋守坛, 曹天, 端宁, 等. CFRP筋增强钢纤维混凝土梁受剪承载力试验与分析[J]. 防灾减灾工程学报, 2021, 41(5): 1012-1019.
SONG S T, CAO T, DUAN N, et al. Experiment and analysis on shear capacity of CFRP reinforced steel fiber concerte beams[J]. Journal of Disaster Prevention and Mitigation Engineering, 2021, 41(5): 1012-1019 (in Chinese).
[28] 原野, 王震宇, 王代玉. 配置新型封闭缠绕式GFRP箍筋混凝土梁的受剪性能试验[J]. 复合材料学报, 2022, 39(11): 5074-5085.
YUAN Y, WANG Z Y, WANG D Y. Experimental study on the shear performance of concrete beams reinforced with new type closed winding GFRP stirrups[J]. Acta Materiae Compositae Sinica, 2022, 39(11): 5074-5085 (in Chinese).
[29] 李树旺. BFRP筋海砂混凝土梁受剪性能试验研究[D]. 广州: 广东工业大学, 2014.
LI S W. Experiment studies on the shear performance of sea sand concrete beam with BFRP tendons[D]. Guangzhou: Guangdong University of Technology, 2014 (in Chinese).
[30] AHMED E A, EL-SALAKAWY E F, BENMOKRANE B. Shear performance of RC bridge girders reinforced with carbon FRP stirrups[J]. Journal of Bridge Engineering, 2010, 15(1): 44-54.
[31] THOMAS J, RAMADASS S. Prediction of the load and deflection response of concrete deep beams reinforced with FRP bars[J]. Mechanics of Advanced Materials and Structures, 2021, 28(1): 43-66.
[32] SAID M, ADAM M A, MAHMOUD A A, et al. Experimental and analytical shear evaluation of concrete beams reinforced with glass fiber reinforced polymers bars[J]. Construction and Building Materials, 2016, 102: 574-591.
[33] EL-SAYED A K, EL-SALAKAWY E F, BENMOKRANE B. Shear capacity of high-strength concrete beams reinforced with FRP bars[J]. ACI STRUCTURAL JOURNAL, 2006, 103(3): 383-389.
[34] DHAHIR M K, NADIR W. A compression field based model to assess the shear strength of concrete beams reinforced with longitudinal FRP bars[J]. Construction and Building Materials, 2018, 191: 736-751.
[35] 杜修力, 金浏, 李冬. 混凝土与混凝土结构尺寸效应述评(Ⅱ): 构件层次[J]. 土木工程学报, 2017, 50(11): 24-44.
DU X L, JIN L, LI D. A state-of-the-art review on the size effect of concretes and concrete structures(Ⅱ): RC members[J]. China Civil Engineering Journal, 2017, 50(11): 24-44 (in Chinese).
[36] SYROKA-KOROL E, TEJCHMAN J, MRÓZ Z. FE analysis of size effects in reinforced concrete beams without shear reinforcement based on stochastic elasto-plasticity with non-local softening[J]. Finite Elements in Analysis and Design, 2014, 88: 25-41.
[37] 金浏, 陆凯, 宋博, 等. FRP筋混凝土梁受剪承载力计算方法[J]. 建筑结构学报, 2023, 44(7): 183-195.
JIN L, LU K, SONG B, et al. A method of calculating shear capacity of FRP reinforced concrete beams[J]. Journal of Building Structures, 2023, 44(7): 183-195 (in Chinese).
[38] 张智梅, 陈刚, 王卓. FRP筋混凝土梁的抗剪承载力[J]. 上海大学学报(自然科学版), 2020, 26(2): 301-310.
ZHANG Z M, CHEN G, WANG Z. Shear bearing capacity for concrete beams with FRP reinforcement[J]. Journal of Shanghai University (Natural Science Edition), 2020, 26(2): 301-310 (in Chinese).
[39] CHEN C, LI X, LI C W, et al. Optimized flax FRP stirrup in reinforced concrete beam: material property and shear performance[J]. Composite Structures, 2022, 302: 116219.
[40] HAN S W, FAN C, ZHOU A, et al. Shear behavior of concrete beams reinforced with corrosion-resistant and ductile longitudinal steel-FRP composite bars and FRP stirrups[J]. Engineering Structures, 2023, 278: 115520.
[41] YOUNIS A, EL-SHERIF H, EBEAD U. Shear strength of recycled-aggregate concrete beams with glass-FRP stirrups[J]. Composites Part C: Open Access, 2022, 8: 100257.
[42] AL-HAMRANI A, ALNAHHAL W. Shear behavior of basalt FRC beams reinforced with basalt FRP bars and glass FRP stirrups: experimental and analytical investigations[J]. Engineering Structures, 2021, 242: 112612.
[43] LI W L, HUANG W, FANG Y, et al. Experimental and theoretical analysis on shear behavior of RC beams reinforced with GFRP stirrups[J]. Structures, 2022, 46: 1753-1763.
[44] 周芬, 陈亚曼, 朱德举. FRP筋超高性能海水海砂混凝土梁抗剪性能研究[J]. 湖南大学学报(自然科学版), 2023, 50(11): 159-168.
ZHOU F, CHEN Y M, ZHU D J. Study on shear behavior of ultra-high performance seawater sea-sand concrete beams with FRP bars[J]. Journal of Hunan University (Natural Sciences), 2023, 50(11): 159-168 (in Chinese).
[45] 吕家美, 潘建荣, 邸博, 等. 全GFRP筋海水海砂自密实混凝土梁抗剪性能试验研究[J]. 混凝土, 2021(11): 53-57.
LÜ J M, PAN J R, DI B, et al. Experimental study on shear capacity of seawater sea-sand and self-compacting concrete beams with GFRP bars and stirrups[J]. Concrete, 2021(11): 53-57 (in Chinese).
[46] BISE 1999. Interim guidance on the design of reinforced concrete structures using fiber composite reinforcement[S]. London: British Institution of Structural Engineers, 1999.
[47] Canadian Network of Centers of Excellence. Reinforced concrete structures with fiber-reinforced polymers: Design Manual No.3 in ISIS M03—07[R]. Winnipeg, MB, Canada, 2007.
[48] Canadian Standards Association. Design and construction of buildings components with fiber reinforced polymers: CSA S806—12[S]. Toronto: Canadian Standards Association, 2012.
[49] HUNEGNAW C B, AURE T W. Effect of orientation of stirrups in combination with shear span to depth ratio on shear capacity of RC beams[J]. Heliyon, 2021, 7(10): e08193.
[50] JIN L, JIANG X A, LU K, et al. Tests on shear failure and size effect of CFRP-wrapped RC beams without stirrups: influence of CFRP ratio[J]. Composite Structures, 2022, 291: 115613.
[51] 李文龙. GFRP箍筋混凝土梁受剪承载力试验研究[D]. 马鞍山: 安徽工业大学, 2017.
LI W L. Experimental study on the shear capacity of concrete beams with GFRP stirrups[D]. Maanshan: Anhui Universit of Technology, 2017 (in Chinese).
[52] HOULT N A, SHERWOOD E G, BENTZ E C, et al. Does the use of FRP reinforcement change the one-way shear behavior of reinforced concrete slabs?[J]. Journal of Composites for Construction, 2008, 12(2): 125-133.
[53] ALI A H, MOHAMED H M, CHALIORIS C E, et al. Evaluating the shear design equations of FRP-reinforced concrete beams without shear reinforcement[J]. Engineering Structures, 2021, 235: 112017.