钢-连续纤维复合筋珊瑚混凝土梁式拉拔粘结应力分布研究

硅酸盐通报 ›› 2024, Vol. 43 ›› Issue (7): 2461-2469.

所属专题：水泥混凝土

钢-连续纤维复合筋珊瑚混凝土梁式拉拔粘结应力分布研究

王磊^1,2, 余涵¹, 章明明³, 谷健¹, 卢家慧¹, 朱得祥¹

1.桂林理工大学土木工程学院,桂林 541004;
2.广西绿色建材与建筑工业化重点实验室,桂林 541004;
3.中国矿业大学力学与土木工程学院,徐州 221116

收稿日期:2023-12-29 修订日期:2024-03-18 出版日期:2024-07-15 发布日期:2024-07-24
作者简介:王磊(1977—),男,博士,教授。主要从事湿热海洋环境下结构耐久性及结构加固技术、珊瑚碎屑混凝土结构、绿色建材及节能技术等的研究。E-mail:tianmu77@163.com
基金资助:
国家自然科学基金(52178194)

Bond Stress Distribution of Steel-FRP Composite Bar Coral Concrete Beam Drawing

WANG Lei^1,2, YU Han¹, ZHANG Mingming³, GU Jian¹, LU Jiahui¹, ZHU Dexiang¹

1. College of Civil Engineering, Guilin University of Technology, Guilin 541004, China;
2. Guangxi Key Laboratory of Green Building Materials and Construction Industrialization, Guilin 541004, China;
3. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China

Received:2023-12-29 Revised:2024-03-18 Online:2024-07-15 Published:2024-07-24

摘要/Abstract

摘要： 为探究钢-连续纤维复合筋(SFCB)在珊瑚混凝土中的粘结应力分布,使用梁式拉拔试验方法,对碳纤维增强复合材料(CFRP)筋和不同直径SFCB珊瑚混凝土进行拉拔,并采用光纤Bragg光栅(FBG)传感技术对筋材应力分布变化动态监测。研究结果表明:SFCB直径和钢芯直径均会影响荷载-滑移曲线形状;箍筋对筋材初始粘结刚度和SFCB纤维层加载端应变有明显提升;箍筋一定程度可以增强螺纹钢芯的粘结,对光圆钢芯粘结影响不大;SFCB屈服后的粘结应力分布与屈服前有明显差异,钢芯屈服后应力传递现象更明显;由于钢芯具有较高的弹性模量,在相同荷载下SFCB纤维层粘结段各处粘结应力均要大于CFRP筋。

关键词: SFCB, 珊瑚混凝土, 梁式拉拔试验, 粘结应力分布, SFCB应变, 光纤光栅传感技术

Abstract: To study the bond stress distribution of steel-fiber reinforced polymer (FRP) composite bar (SFCB) in coral concrete, a beam pull-out test method was adopted to pull out different diameters of SFCB and carbon fiber reforced polymer (CFRP) reinforced coral concrete, and used fiber Bragg grating (FBG) sensing technology to dynamically monitor the stress distribution changes of the reinforcement material. The results of the study show that both SFCB diameter and steel core diameter affect the shape of load-slip curves. The stirrup reinforcement significantly improves the initial bonding stiffness of the reinforcement material and the strain at the loading end of the SFCB fiber layer. Stirrups to a certain extent enhance the bonding of threaded steel cores, but have little effect on the bonding of smooth round steel cores. The distribution of bond stress after SFCB yielding differs significantly from that before yielding, and the stress transfer phenomenon is more pronounced after the steel core is yielded. Due to the high elastic modulus of the steel core, the bonding stress at all points of the SFCB fiber layer bonding section is greater than that of the CFRP reinforcement under the same load.

Key words: SFCB, coral concrete, beam drawing test, bond stress distribution, SFCB strain, fiber bragg grating sensing technology

中图分类号:

TU528.59

王磊, 余涵, 章明明, 谷健, 卢家慧, 朱得祥. 钢-连续纤维复合筋珊瑚混凝土梁式拉拔粘结应力分布研究[J]. 硅酸盐通报, 2024, 43(7): 2461-2469.

WANG Lei, YU Han, ZHANG Mingming, GU Jian, LU Jiahui, ZHU Dexiang. Bond Stress Distribution of Steel-FRP Composite Bar Coral Concrete Beam Drawing[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(7): 2461-2469.

参考文献

[1] 王磊, 赵艳林, 吕海波. 珊瑚骨料混凝土的基础性能及研究应用前景[J]. 混凝土, 2012(2): 99-100+113.
WANG L, ZHAO Y L, LYU H B. Prospect on the properties and application situation of coral aggregate concrete[J]. Concrete, 2012(2): 99-100+113 (in Chinese).
[2] ZHOU L L, GUO S C, ZHANG Z H, et al. Mechanical behavior and durability of coral aggregate concrete and bonding performance with fiber-reinforced polymer (FRP) bars: a critical review[J]. Journal of Cleaner Production, 2021, 289: 125652.
[3] YU H F, DA B, MA H Y, et al. Service life prediction of coral aggregate concrete structure under island reef environment[J]. Construction and Building Materials, 2020, 246: 118390.
[4] CAO Y L, BAO J W, ZHANG P, et al. A state-of-the-art review on the durability of seawater coral aggregate concrete exposed to marine environment[J]. Journal of Building Engineering, 2022, 60: 105199.
[5] ZHOU Y W, ZHENG B W, SUI L L, et al. Effects of external confinement on steel reinforcement corrosion products monitored by X-ray microcomputer tomography[J]. Construction and Building Materials, 2019, 222: 531-543.
[6] DONG Z Q, WU G, ZHAO X L, et al. Bond durability of steel-FRP composite bars embedded in seawater sea-sand concrete under constant bending and shearing stress[J]. Construction and Building Materials, 2018, 192: 808-817.
[7] 吴刚, 罗云标, 吴智深, 等. 钢-连续纤维复合筋(SFCB)力学性能试验研究与理论分析[J]. 土木工程学报, 2010, 43(3): 53-61.
WU G, LUO Y B, WU Z S, et al. Experimental and theoretical studies on the mechanical properties of steel-FRP composite bars[J]. China Civil Engineering Journal, 2010, 43(3): 53-61 (in Chinese).
[8] 孙泽阳, 吴刚, 吴智深, 等. 钢-连续纤维复合筋(SFCB)与混凝土粘结性能试验研究[J]. 工程抗震与加固改造, 2009, 31(1): 21-27.
SUN Z Y, WU G, WU Z S, et al. Experimental study on the bond behavior between steel fiber composite bar (SFCB) and concrete[J]. Earthquake Resistant Engineering and Retrofitting, 2009, 31(1): 21-27 (in Chinese).
[9] 郑忆, 孙泽阳, 孙运楼, 等. 钢-连续纤维复合筋与灌浆套筒粘结性能试验研究[J]. 江苏建筑, 2021(增刊1): 33-35.
ZHENG Y, SUN Z Y, SUN Y L, et al. Experimental study on bond performance between steel-continuous fiber composite reinforcement and grouting sleeve[J]. Jiangsu Construction, 2021(supplement 1): 33-35 (in Chinese).
[10] MA G W, HUANG Y M, ASLANI F, et al. Tensile and bonding behaviours of hybridized BFRP-steel bars as concrete reinforcement[J]. Construction and Building Materials, 2019, 201: 62-71.
[11] ZHAO D B, PAN J, ZHOU Y W, et al. New types of steel-FRP composite bar with round steel bar inner core: mechanical properties and bonding performances in concrete[J]. Construction and Building Materials, 2020, 242: 118062.
[12] WANG L, SHEN N, ZHANG M M, et al. Bond performance of Steel-CFRP bar reinforced coral concrete beams[J]. Construction and Building Materials, 2020, 245: 118456.
[13] HILL K O, MELTZ G. Fiber Bragg grating technology fundamentals and overview[J]. Journal of Lightwave Technology, 1997, 15(8): 1263-1276.
[14] HUANG X, JIN Z K, SHEN Q. New method of temperature and strain decoupling based on directivity of fiber Bragg grating sensing[J]. Journal of Physics: Conference Series, 2021, 2101(1): 012023.
[15] 唐广宁. 适用于船体结构健康监测的FBG传感器应用研究[D]. 武汉: 武汉理工大学, 2013.
TANG G N. Application study on FBG sensor applied to hull structural health monitoring[D]. Wuhan: Wuhan University of Technology, 2013 (in Chinese).
[16] WANG L, CHEN J W, SHEN N, et al. Fibre Bragg grating sensor investigation on bond stress of steel-carbon fibre reinforced concrete[J]. Proceedings of the Institution of Civil Engineers-Structures and Buildings, 2023: 1-12.
[17] 中国工程建设标准化协会. 混凝土用珊瑚骨料: T/CECS 10090—2020[S]. 北京: 中国标准出版社, 2020.
China Engineering Construction Standardization Association. Coral aggregate for concrete: T/CECS 10090—2020[S]. Beijing: China Standard Publishing House, 2020 (in Chinese).
[18] 中国工程建设标准化协会. 珊瑚骨料混凝土应用技术规程: T/CECS 694—2020[S]. 北京: 中国计划出版社, 2020.
China Engineering Construction Standardization Association. Technical specification for application of coral aggregate concrete: T/CECS 694—2020[S]. Beijing: China Planning Press, 2020 (in Chinese).
[19] 国家质量监督检验检疫总局, 中国国家标准化管理委员会. 纤维增强复合材料筋基本力学性能试验方法: GB/T 30022—2013[S]. 北京: 中国标准出版社, 2014.
General Administration of Quality Supervision, Inspection and Quarantine of China, National Standardization Administration of China. Test method for basic mechanical properties of fiber-reinforced composite reinforcement bars: GB/T 30022—2013[S]. Beijing: China Standard Publishing House, 2014 (in Chinese).
[20] RILEM T C. Tentative recommendation: bond test for reinforcing steel[J]. Materials and Structures, 1973, 6(32): 97-10.
[21] 过镇海. 钢筋混凝土原理[M]. 3版. 北京: 清华大学出版社, 2013: 139.
GUO Z H. Principles of reinforced concrete[M]. 3rd ed. Beijing: Tsinghua University Press, 2013: 139 (in Chinese).
[22] 李宏, 付恒菁. 钢筋混凝土框架边节点粘结锚固试验研究[J]. 西安建筑科技大学学报(自然科学版), 1998, 30(1): 16-19+32.
LI H, FU H J. Experimental study on bonding and anchorage of edge joints of reinforced concrete frame[J]. Journal of Xi’an University of Architecture & Technology (Natural Science Edition), 1998, 30(1): 16-19+32 (in Chinese).
[23] LEES J M, BURGOYNE C J. Transfer bond stresses generated between FRP tendons and concrete[J]. Magazine of Concrete Research, 1999, 51(4): 229-239.
[24] 易伟建, 郑明明. 屈服后钢筋黏结锚固性能试验研究[J]. 湖南大学学报(自然科学版), 2022, 49(3): 79-89.
YI W J, ZHENG M M. Experimental study on bond anchorage properties of steel bar after yielding[J]. Journal of Hunan University (Natural Sciences), 2022, 49(3): 79-89 (in Chinese).
[25] 王博, 白国良, 李坚, 等. 钢筋与再生混凝土粘结应力分布的试验研究及理论分析[J]. 工业建筑, 2012, 42(4): 10-14.
WANG B, BAI G L, LI J, et al. Experimental and theoretical analysis of bond stress distribution between the rebar and the recycled concrete[J]. Industrial Construction, 2012, 42(4): 10-14 (in Chinese).

钢-连续纤维复合筋珊瑚混凝土梁式拉拔粘结应力分布研究

Bond Stress Distribution of Steel-FRP Composite Bar Coral Concrete Beam Drawing

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 8

编辑推荐

Metrics

本文评价

[1]	邓潇, 吴庆. 弯曲应力作用下不同钢筋种类和保护层厚度珊瑚混凝土的钢筋锈蚀研究[J]. 硅酸盐通报, 2023, 42(3): 898-907.
[2]	张继旺, 黄满锋, 苏仕参, 易金, 覃庆龙, 王磊. 高强珊瑚混凝土(HSCC)单轴受压性能试验研究[J]. 硅酸盐通报, 2022, 41(7): 2275-2282.
[3]	陈红梅, 刘玉涛, 关纪文. BFRP筋增强珊瑚混凝土耐久性研究进展[J]. 硅酸盐通报, 2021, 40(11): 3544-3555.
[4]	邓志恒;刘兵;盛军;温小艳;周敬凯. 珊瑚混凝土研究进展[J]. 硅酸盐通报, 2020, 39(4): 1026-1034.
[5]	吴彰钰;余红发;麻海燕;达波;谭永山. 岛礁珊瑚混凝土结构寿命影响因素分析[J]. 硅酸盐通报, 2019, 38(8): 2347-235.
[6]	王磊;谷文慧;汪稔;刘超. 碳纤维增强珊瑚混凝土抗冲击性能试验研究[J]. 硅酸盐通报, 2019, 38(10): 3339-334.
[7]	马林建;李增;陈欣星;高康华;吴家文. 珊瑚混凝土基本特性及工程应用研究进展[J]. 硅酸盐通报, 2018, 37(8): 2471-2477.
[8]	窦雪梅;余红发;麻海燕;达波;袁银峰;糜人杰;朱海威. 海洋环境下珊瑚混凝土的表面氯离子浓度规律[J]. 硅酸盐通报, 2016, 35(9): 2695-2700.