|Table of Contents|

Influence Analysis of Fiber Synergistic Equivalent Effect of Textile Reinforced Concrete on Confined Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2021年04期
Page:
110-117
Research Field:
Publishing date:

Info

Title:
Influence Analysis of Fiber Synergistic Equivalent Effect of Textile Reinforced Concrete on Confined Concrete
Author(s):
ZHAI Meng-chao;  WANG Jing-quan;  YAO Yi-ming
(School of Civil Engineering, Southeast University, Nanjing 211100, Jiangsu, China)
Keywords:
fiber fabric;  ECC;  UHPC;  axial compression property;  numerical analysis
PACS:
TU528.58
DOI:
10.19815/j.jace.2020.09073
Abstract:
ABAQUS was used to analyze the tensile properties of textile reinforced concrete(TRC)and the axial compression performance of concrete columns strengthened with TRC permanent formwork, the effects of short fiber content and fabric layers on the tensile properties of engineered cementitious composite(ECC)and ultra high performance concrete(UHPC)were studied. At the structural level, the restraint efficiency of TRC formwork to different strength core concrete and the substitution relationship between textile and short fiber were studied. The results show that the reasonable substitution of textile for short fiber can further improve the tensile properties of the material. For the appropriate amount of short fiber, the dispersion degree of fiber is better, the cracking strength is higher, and the synergistic effect with fabric is better. At the same time, the existence of fabric can significantly enhance the strain hardening of matrix, bring higher ultimate strength, and significantly improve the ductility of UHPC. The material performance is reflected in the improvement of structural performance. With the increase of fabric layers, the TRC formwork can significantly improve the bearing capacity and ductility of the reinforced column. While under the same conditions, the efficiency of the formwork to restrain the high-strength concrete is reduced. For the research model, 2-layer CFRP fabric can fully replace 5% volume fraction of steel fiber, and achieve better performance in strengthening concrete columns.

References:

[1] 刘 赛,朱德举,李安令.织物增强混凝土的研究与应用进展[J].建筑科学与工程学报,2017,34(5):134-146.
LIU Sai,ZHU De-jiu,LI Ai-ling.Research and Application Progress of Textile Reinforced Concrete[J].Journal of Architecture and Civil Engineering,2017,34(5):134-146.
[2]DU Y,ZHANG X,LIU L,et al.Flexural Behaviour of Carbon Textile-reinforced Concrete with Prestress and Steel Fibres[J].Polymers,2018,10(1):10010098.
[3]BARHUM R,MECHTCHERINE V.Effect of Short,Dispersed Glass and Carbon Fibres on the Behaviour of Textile-reinforced Concrete Under Tensile Loading[J].Engineering Fracture Mechanics,2012,92:56-71.
[4]ZHU D,LIU S,YAO Y,et al.Effects of Short Fiber and Pre-tension on the Tensile Behavior of Basalt Textile Reinforced Concrete[J].Cement and Concrete Composites,2019,96:33-45.
[5]LI B B,XIONG H B,JIANG J F,et al.Tensile Behavior of Basalt Textile Grid Reinforced Engineering Cementitious Composite[J].Composites Part B:Engineering,2018,156:185-200.
[6]AL-GEMEEL A N,YAN Z.Experimental Investigation of Textile Reinforced Engineered Cementitious Composite(ECC)for Square Concrete Column Confinement[J].Construction and Building Materials,2018,174:594-602.
[7]ORTLEPP R,ORTLEPP S.Textile Reinforced Concrete for Strengthening of RC Columns:A Contribution to Resource Conservation Through the Preservation of Structures[J].Construction and Building Materials,2017,132:150-160.
[8]尹世平,彭 驰,艾珊霞.纤维编织网增强混凝土加固混凝土柱轴压性能的研究[J].四川大学学报:工程科学版,2016,48(4):85-92.
YIN Shi-ping,PENG Chi,AI Shan-xia.Research on the Axial Compression Properties of Concrete Columns Strengthened with Textile Reinforced Concrete[J].Journal of Sichuan University:Engineering Science Edition,2016,48(4):85-92.
[9]江佳斐,隋 凯.纤维网格增强超高韧性水泥复合材料加固混凝土圆柱受压性能试验[J].复合材料学报,2019,36(8):1957-1967.
JIANG Jia-fei,SUI Kai.Experimental Study of Compression Performance of Concrete Cylinder Strengthened by Textile Reinforced Engineering Cement Composites[J].Acta Materiae Compositae Sinica,2019,36(8):1957-1967.
[10]荀 勇,徐业辉,尹红宇.织物增强混凝土永久模板叠合混凝土圆形短柱轴压性能试验研究[J].混凝土,2016(1):25-28,33.
XUN Yong,XU Ye-hui,YIN Hong-yu.Experimental Study on the Axial Compression Performance of the Composite Circular Concrete Short Columns of Textile Reinforced Concrete Stay-in-place Formwork[J].Concrete,2016(1):25-28,33.
[11]王新玲,苏会晓,李 可,等.FRP网格增强ECC加固素混凝土柱受压性能数值分析[J].建筑科学,2018,34(3):22-29.
WANG Xin-ling,SU Hui-xiao,LI Ke,et al.Numerical Analysis of Compressive Performance of Plain Concrete Columns Strengthened with FRP Grid and ECC[J].Building Science,2018,34(3):22-29.
[12]陆新征,冯 鹏,叶列平.FRP布约束混凝土方柱轴心受压性能的有限元分析[J].土木工程学报,2003,36(2):46-51.
LU Xin-zheng,FENG Peng,YE Lie-ping.Behavior of FRP-confined Concrete Square Columns Under Uniaxial Loading[J].China Civil Engineering Journal,2003,36(2):46-51.
[13]戎 芹,曾宇声,侯晓萌,等.圆钢管RPC轴压短柱有限元分析与承载力计算[J].哈尔滨工业大学学报,2018,50(12):61-66.
RONG Qin,ZENG Yu-sheng,HOU Xiao-meng,et al.Finite Element Analysis and Bearing Capacity Calculation for RPC-filled Circular Steel Tube Columns Under Axial Compression[J].Journal of Harbin Institute of Technology,2018,50(12):61-66.
[14]KANDA T,LIN Z,LI V C.Tensile Stress-strain Modeling of Pseudostrain Hardening Cementitious Composites[J].Journal of Materials in Civil Engineering,2000,12(2):147-156.
[15]WANG Y,LIU F,YU J,et al.Effect of Polyethylene Fiber Content on Physical and Mechanical Properties of Engineered Cementitious Composites[J].Construction and Building Materials,2020,251:118917.
[16]WILLE K,KIM D J,NAAMAN A E,et al.Strain-hardening UHP-FRC with Low Fiber Contents[J].Materials and Structures,2011,44(3):583-598.
[17]徐世烺,闫轶群.低配网率纤维编织网增强混凝土轴拉力学性能[J].复合材料学报,2011,28(5):206-213.
XU Shi-lang,YAN Yi-qun.Mechanical Properties of Textile Reinforced Concrete Plate at Low Textile Ratios[J].Acta Materiae Compositae Sinica,2011,28(5):206-213.
[18]AL-GEMEEL A N,YAN Z.Using Textile Reinforced Engineered Cementitious Composite for Concrete Columns Confinement[J].Composite Structures,2019,210:695-706.
[19]GB 50010—2010,混凝土结构设计规范[S].
GB 50010—2010,Code for Design of Concrete Structures[S].
[20]XIE J,FU Q,YAN J,et al.Compressive Behaviour of Stub Concrete Column Strengthened with Ultra-high Performance Concrete Jacket[J].Construction and Building Materials,2019,204:643-658.
[21]TENG J G,HUANG Y L,LAM L,et al.Theoretical Model for Fiber-reinforced Polymer-confined Concrete[J].Journal of Composites for Construction,2007,11(2):201-210.

Memo

Memo:
-
Last Update: 2021-07-10