Regression analysis of shear strength of FRP beams without web reinforcement

doi:10.19936/j.cnki.2096-8000.20220228.006

Abstract

Abstract: The difference in the properties between fiber reinforced polymer (FRP) bars and ordinary steel bars increases the complexity of the shear performance of concrete beams. For the evaluation approaches of the shear strength of FRP reinforced concrete beams without web reinforcements, the current different countries′ design codes differ in the influencing variables concerned and the influence degree of each variable. Thus, the evaluation results based on each design code differ a lot, and in addition, are generally conservative compared with that of the test results. To this end, based on a quantitative regression analysis on the test data of 184 FRP beams from published literature, this paper proposes a new evaluation formula for the shear strength of FRP beams without web reinforcement. This new formula systematically evaluate the effects of the influencing variables, and the evaluation results are more reasonable and accurate than that of the current code design formulas.

Key words: FRP bars, beams without web reinforcement, shear strength, regression analysis

CLC Number:

TB332

CUI Jun-qiang, XUE Xin. Regression analysis of shear strength of FRP beams without web reinforcement[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(2): 38-44.

References

[1] 中国科学院海洋研究所. 国内腐蚀状况及控制战略研究成果发布[J]. 石油化工腐蚀与防护, 2016, 33(5): 12.
[2] 陈辉, 杨彦克, 王传波. 纤维增强聚合物筋混凝土的研究与应用[J]. 混凝土, 2007(1): 47-50.
[3] 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.
[4] 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.
[5] 张晓亮, 屈文俊. 无腹筋GFRP筋混凝土梁抗剪性能试验[J]. 中国公路学报, 2010, 23(5): 51-57.
[6] 徐新生, 纪涛, 郑永峰. FRP筋混凝土梁挠度的特点及计算方法[J]. 工程力学, 2009, 26(s1): 171-175.
[7] 朱虹, 董志强, 吴刚, 等. FRP筋混凝土梁的刚度试验研究和理论计算[J]. 土木工程学报, 2015, 48(11): 44-53.
[8] YOST J R, GROSS S P, DINEHART D W. Shear strength of normal strength concrete beams reinforced with deformed GFRP bars[J]. Journal of Composites for Construction, 2001, 5(4): 268-275.
[9] RAZAQPUR A G, ISGOR B O, GREENAWAY S, et al. Concrete contribution to the shear resistance of fiber reinforced polymer reinforced concrete members[J]. Journal of Composites for Construction, 2004, 8(5): 452-460.
[10] TUREYEN A K, FROSCH R J. Shear tests of FRP-reinforced concrete beams without stirrups[J]. Aci Structural Journal, 2002, 99(4):427-434.
[11] ALAM M S, HUSSEIN A. Size effect on shear strength of FRP reinforced concrete beams without stirrups[J]. Journal of Composites for Construction, 2013, 17(4): 507-516.
[12] ASHOUR A F, KARA I F. Size effect on shear strength of FRP reinforced concrete beams[J]. Composites Part B: Engineering, 2014, 60: 612-620.
[13] 二羽淳一郎, 崔益暢, 三島徹也, 等. 格子モデルによるFRP補強コンクリートはりのせん断耐荷力の定量的評価[J]. 土木学会論文集, 1996(538): 105-114.
[14] 崔益暢, 鈴木顕彰, 三島徹也, 等. 鉄筋およびFRPロッドを補強材としたコンクリートはりのせん断耐荷性状に関する研究[J]. 土木学会論文集, 1997(599): 23-33.
[15] 中村关, 檜貝勇. 連続繊維で補強したコンクリートはりのせん断耐荷力の評価[J]. 土木学会論文集, 1995(508): 89-100.
[16] ABED F, EL-CHABIB H, ABDALLA S. Experimental and finite element investigation of the shear performance of BFRP-RC short beams[J]. Structures, 2019, 20(C): 689-701.
[17] 刘华新, 柳根金, 王学志, 等. BFRP筋再生混凝土无腹筋深梁抗剪承载力[J]. 四川大学学报(工程科学版), 2015, 47(5): 17-22.
[18] RAZAQPUR A G, SPADEA S. Shear strength of FRP reinforced concrete members with stirrups[J]. Journal of Composites for Construction, 2015, 19(1): 04014025.1-04014025.15.
[19] 纤维增强复合材料工程应用技术标准: GB50608-2020[S]. 北京: 中国计划出版社, 2020.
[20] Guide for the design and construction of structural concrete reinforced with FRP bars: ACI 440.1R—15[S]. Famington Hills: ACI Committee 440, 2015.
[21] Interim guidance on the design of reinforced concrete structures using fiber composite reinforcement: BISE 1999[S]. London: British Institution of Structural Engineers, 1999.
[22] Recommendation for design and construction of concrete structures using continuous fiber reinforcing materials: JSCE 1997[S]. Tokyo: Japan Society of Civil Engineers, 1997.
[23] Design and construction of buildings components with fiber-reinforced polymers: CSA S806—12[S]. Toronto: Canadian Standards Association, 2012.
[24] 徐开铎. 无腹筋梁抗剪承载力参数耦合的研究[D]. 长沙: 湖南大学, 2018.
[25] 吕艳梅. 高强箍筋高强混凝土梁抗剪性能试验研究与理论分析[D]. 长沙: 湖南大学, 2008.
[26] TUREYEN A K, FROSCH R J. Concrete shear strength: Another perspective[J]. Aci Structural Journal, 2003, 100(5): 609-615.
[27] 混凝土结构设计规范: GB 50010—2010[S]. 北京: 中国建筑工业出版社, 2011.
[28] GONNERMAN H F. Effect of size and shape of test specimen on compressive strength of concrete[M]. West Conshohocken: ASTM, 1925.
[29] Building code requirements for structural concrete: ACI 318—19[S]. Famington Hills: ACI Committee 318, 2019.
[30] JUMAA G B, YOUSIF A R. Size effect in shear failure of high strength concrete beams without stirrup reinforced with basalt FRP bars[J]. KSCE journal of civil engineering, 2019, 23(4): 1636-1650.
[31] MATTA F, EL-SAYED A K, NANNI A, et al. Size effect on concrete shear strength in beams reinforced with fiber-reinforced polymer bars[J]. Aci Structural Journal, 2013, 110(4): 617-628.
[32] ALI I, THAMRIN R, SAMAD A A A, et al. Diagonal shear cracks and size effect in concrete beams reinforced with glass fiber reinforced polymer (GFRP) bars[J]. Applied Mechanics and Materials, 2014, 621: 113-119.
[33] ISSA M A, OVITIGALA T, IBRAHIM M. Shear behavior of basalt fiber reinforced concrete beams with and without basalt FRP stirrups[J]. Journal of Composites for Construction, 2016, 20(4): 04015083-1-04015083-11.
[34] KIM C H, JANG H S. Concrete shear strength of normal and lightweight concrete beams reinforced with FRP bars[J]. Journal of Composites for Construction, 2014, 18(2): 1090-1268.
[35] EL-SAYED A K, EL-SALAKAWY E F, BENMOKRANE B. Shear strength of FRP-reinforced concrete beams without transverse reinforcement[J]. Aci Structural Journal, 2006, 103(2): 235-243.
[36] BENTZ E C, MASSAM L, COLLINS M P. Shear strength of large concrete members with FRP reinforcement[J]. Journal of Composites for Construction, 2010, 14(6): 637-646.
[37] ALAM M S. Influence of different parameters on shear strength of FRP reinforced concrete beams without web reinforcement[D]. St. John′s: Memorial University of Newfoundland, 2010.
[38] ANDERMATT M F, LUBELL A S. Behavior of concrete deep beams reinforced with internal fiber-reinforced polymer-experimental study[J]. Aci Structural Journal, 2013, 110(4): 585-594.
[39] TOTTORI S, WAKUI H. Shear capacity of RC and PC beams using FRP reinforcement[J]. Aci Special Publication, 1993, 138: 615-632.
[40] GROSS S P, DINEHART D W, YOST J R, et al. Experimental tests of high-strength concrete beams reinforced with CFRP bars[C]//Proceedings of the 4th International Conference on Advanced Composite Materials in Bridges and Structures. Montreal: CSCE, 2004.
[41] TARIQ M, NEWHOOK J P. Shear testing of FRP reinforced concrete without transverse reinforcement[C]//Annual Conference of the Canadian Society for Civil Engineering. Montreal: CSCE, 2003.
[42] ABED F, EL-CHABIB H, ALHAMAYDEH M. Shear characteristics of GFRP-reinforced concrete deep beams without web reinforcement[J]. Journal of Reinforced Plastics & Composites, 2012, 31(16): 1063-1073.
[43] 张志金, 孙荣书, 刘华新, 等. BFRP筋混凝土无腹筋梁抗剪性能试验研究[J]. 硅酸盐通报, 2018, 37(10): 66-71.
[44] YANG K, CHUNG H S, LEE E T, et al. Shear characteristics of high-strength concrete deep beams without shear reinforcements[J]. Engineering Structures, 2003, 25(10): 1343-1352.
[45] KOROL E, TEJCHMAN J, MROZ Z. Experimental and numerical assessment of size effect in geometrically similar slender concrete beams with basalt reinforcement[J]. Engineering Structures, 2017, 141: 272-291.
[46] ZSUTTY T C. Beam shear strength prediction by analysis of existing data.[J]. Aci Journal Proceedings, 1968, 65(11): 943-951.
[47] 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.