Model Analysis of Axial Compressive Mechanical Properties of Concrete Column Constrained by Textile-Reinforced Engineered Cementitious Composites

MA Gao, College of Civil Engineering , Hunan University , Changsha , Hunan 410082 , China ;Hunan Provincial Key Laboratory on Damage Diagnosis for Engineering Structures (Hunan University ), Changsha , Hunan 410082 , China Follow
WANG Zhaoyang, College of Civil Engineering , Hunan University , Changsha , Hunan 410082 , China

Abstract

In order to avoid the problem of matrix cracking in textile-reinforced concrete (TRC ),a reinforcement method of textile-reinforced engineered cementitious composites (ECC ),namely TRECC composed of textile and high-performance ECC was proposed.However,the research on the axial compressive mechanical properties of TRECC-constrained concrete in China and abroad is still insufficient,and there is a lack of reliable strength and ultimate strain analysis models.A total of 116 axial compression test results of TRC-constrained concrete columns and 125 axial compression test results of TRECC-constrained concrete columns were collected.The confinement mechanisms and failure modes of TRECC and TRC-constrained concrete were compared.Then,the strength models and ultimate strain models of TRECC and TRC-constrained concrete were proposed.By taking into account the contributions of longitudinal and hoop reinforcement to the mechanical properties of the columns,the strength model and ultimate strain model for TRECC-constrained reinforced concrete columns were proposed.For the convenience of practical applications,strength and ultimate strain models were proposed for different types of mesh fabrics.The comparative analysis with the experimental results shows that the models have good prediction accuracy.

Publication Date

2-22-2025

DOI

10.14048/j.issn.1671-2579.2025.01.013

First Page

109

Last Page

118

Submission Date

March 2025

Recommended Citation

Gao, MA and Zhaoyang, WANG (2025) "Model Analysis of Axial Compressive Mechanical Properties of Concrete Column Constrained by Textile-Reinforced Engineered Cementitious Composites," Journal of China & Foreign Highway: Vol. 45: Iss. 1, Article 13.
DOI: 10.14048/j.issn.1671-2579.2025.01.013
Available at: https://zwgl1980.csust.edu.cn/journal/vol45/iss1/13

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