Research on Shear and Bending Performance of Novel LCP-Fiber-Braided Reinforced CFRP Tendons

JIA Ruixin; LIU Yue

doi:10.3724/j.gyjzG24091101

Volume 54 Issue 12

Dec. 2024

Turn off MathJax

Article Contents

Article Navigation > INDUSTRIAL CONSTRUCTION > 2024 > 54(12): 238-245

JIA Ruixin, LIU Yue. Research on Shear and Bending Performance of Novel LCP-Fiber-Braided Reinforced CFRP Tendons[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(12): 238-245. doi: 10.3724/j.gyjzG24091101

Citation:

JIA Ruixin, LIU Yue. Research on Shear and Bending Performance of Novel LCP-Fiber-Braided Reinforced CFRP Tendons[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(12): 238-245. doi: 10.3724/j.gyjzG24091101

JIA Ruixin, LIU Yue. Research on Shear and Bending Performance of Novel LCP-Fiber-Braided Reinforced CFRP Tendons[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(12): 238-245. doi: 10.3724/j.gyjzG24091101

Citation:

JIA Ruixin, LIU Yue. Research on Shear and Bending Performance of Novel LCP-Fiber-Braided Reinforced CFRP Tendons[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(12): 238-245. doi: 10.3724/j.gyjzG24091101

PDF( 13659 KB)

Research on Shear and Bending Performance of Novel LCP-Fiber-Braided Reinforced CFRP Tendons

doi: 10.3724/j.gyjzG24091101

JIA Ruixin¹,
LIU Yue^{2
,
,}

1. The College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;
2. School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2024-09-11
Available Online: 2025-01-04
Publish Date: 2024-12-20

Abstract

Abstract

Carbon fiber reinforced polymer composites (CFRP) are candidates for prestressing tendons due to their advantages over rebars, such as lighter weight, higher strength, and resistance to corrosion, fatigue, and creep. However, the transverse shear and bending properties of pultruded CFRP tendons are insufficient for their widespread application in prestressed structures. Liquid crystal polyarylate (LCP) fibers, known for their excellent mechanical properties and dimensional stability, particularly in shear and cut resistance, are used in various industries including protective clothing, sports equipment, and aerospace. This study aimed to enhance the shear and flexural properties of pultruded CFRP tendons by incorporating braided LCP fibers in the outer layer, thereby improving their suitability for prestressed structures. Shear and three-point bending tests were conducted on CFRP tendons with different fiber volumes (55% and 65%) reinforced with braided LCP fibers. The goal was to assess the impact of the LCP material and the pultrusion-braiding process on the shear and bending characteristics of CFRP tendons. The findings indicate that the braided LCP fibers significantly improved the shear and flexural strength and ductility of pultruded CFRP bars. The shear strengths of the braided CFRP tendons with 55% and 65% fiber content increased by 54.6% and 55.0%, respectively, and the shear peak deformations increased by 10.4% and 38.5%, respectively. Similarly, the flexural strengths increased by 26.6% and 14.9%, and the bending peak deformations increased by 13.1% and 38.8%, respectively. In general, the performance enhancement achieved through braiding with an increase in the volume content of CFRP reinforcement fibers. This research offers valuable insights for the use of LCP-fiber-braided reinforced CFRP tendons in prestressed concrete applications.
- carbon fiber reinforced polymer composite,
- liquid crystal polyarylate fiber,
- pultrusion-braiding,
- mechanical properties,
- experimental study

FullText(HTML)

References(23)

References

[1]	AGRA-KOOIJMAN D M, ROBB C, GUAN Y, et al. Liquid crystal core polymer fiber mat electronic gas sensors [J]. Liquid Crystals, 2021, 48(13): 1880-1887.
[2]	梅葵花, 吕志涛, 张继文. CFRP筋黏结型锚具试验研究及实桥应用分析[J]. 中国公路学报, 2016, 29(1): 53-60.
[3]	高婧, 范凌云. CFRP筋与海水海砂混凝土粘结性能试验与机制分析[J]. 复合材料学报, 2022, 39(3): 1194-1204.
[4]	HOLLAWAY L. A review of the present and future utilisation of FRP composites in the civil infrastructure with reference to their important in-service properties [J]. Construction and Building Materials, 2010, 24(12): 2419-2445.
[5]	RASHID K, LI X, DENG J, et al. Experimental and analytical study on the flexural performance of CFRP-strengthened RC beams at various pre-stressing levels [J]. Composite Structures, 2019,227, 111323.
[6]	ZHAO J, MEI K, WU J. Long-term mechanical properties of FRP tendon-anchor systems: a review [J]. Construction and Building Materials, 2020,230, 117017.
[7]	杨亚强. 轻量化FRP拉索超大跨桥梁研究[D]. 南京:东南大学, 2017.
[8]	《中国公路学报》编辑部. 中国桥梁工程学术研究综述·2014[J]. 中国公路学报, 2014, 27(5): 1-96.
[9]	黄泽华, 朱尚清, 荚瑞馨, 等.纤维增强复合材料(FRP)配筋混凝土结构研究综述[J].市政技术,2024,42(6):160-173.
[10]	王安妮, 刘晓刚, 岳清瑞. 碳纤维增强树脂基复合材料及其拉索抗低速冲击性能综述[J]. 复合材料学报, 2022, 39(11): 5049-5061.
[11]	PRITA A M, RINO Y, YUICHI M, et al. Improvement of lateral property of unidirectional-strengthened CFRP laminates using recycled carbon fiber[J]. Scientific Reports, 2023, 13(1),13697.
[12]	ZHU L, CAO S, ZHANG X, et al. Bending failure behavior of the glass fiber reinforced composite i-beams formed by a novel bending pultrusion processing technique [J]. Autex Research Journal, 2022,22: 172-176.
[13]	ZHENYU W, SHUANG Q, PANYOU Z, et al. Damage evolution in braided composite tubes under axial compression studied by combining infrared thermography and X-ray computed tomography[J]. Composite Structures, 2023, 307,116634.
[14]	QUEK S C, WAAS A M, SHAHWAN K W, et al. Failure mechanics of triaxially braided carbon composites under combined bending-compression loading [J]. Composites Science and Technology, 2006,66: 2548-2556.
[15]	XI L,WEI S,JINCUN F, et al. A novel pultrusion method and axial compression behavior of 3-D braiding-winding-pultrusion composite tubes at different temperatures [J]. Composites Science and Technology, 2024, 245,110340.
[16]	SAITO H, CHIRWA E C, INAI R, et al. Energy absorption of braiding pultrusion process composite rods [J]. Composite Structures, 2002,55: 407-417.
[17]	HAMADA H, KAMEO K, SAKAGUCHI M, et al. Energy-absorption properties of braided composite rods [J]. Composites Science and Technology, 2000,60: 723-729.
[18]	HIERMER T, SCHMITT-THOMAS K G, YANG Z G. Mechanical properties and failure behaviour of cylindrical CFRP-implant-rods under torsion load [J]. Composites Part A: Applied Science and Manufacturing, 1998, 29(11): 1453-1461.
[19]	AHMADI M S. An experimental study on mechanical properties of GFRP braid-pultruded composite rods[J]. Express Polymer Letters, 2009, 3(9):560-568.
[20]	谷元慧, 张典堂, 贾明皓, 等. 碳纤维增强编织复合材料圆管制备及其压缩性能[J]. 纺织学报, 2019, 40(7): 71-77.
[21]	王烨然, 刘君妹, 郑美悦, 等. 纤维增强复合管材的力学性能研究[J]. 棉纺织技术, 2022, 50(7):14-18.
[22]	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, 2013.
[23]	ASTM. Standard test method for flexural properties of fiber reinforced pultruded plastic rods: ASTM D4476/D4476M—14[S]. West Conshohocken: American Society for Testing and Materials, 2014.