Tension Stiffening and Synergistic Effect in Textile Reinforced Ultra-High Performance Concrete

被引：0
|
作者：
Yao Y. [1 ,2 ]
Zhai M. [1 ]
Dong L. [1 ]
Wang J. [1 ,2 ]
机构：
[1] School of Civil Engineering, Southeast University, Nanjing
[2] Engineering Research Center of Safety and Protection of Explosion & Impact of Ministry of Education, Southeast University, Nanjing
来源：
Wang, Jingquan (wangjingquan@seu.edu.cn); Wang, Jingquan (wangjingquan@seu.edu.cn) | 1600年 / Chinese Ceramic Society卷 / 49期
关键词：
Numerical analysis; Strain-hardening; Synergistic effect; Tension stiffening; Textile; Ultra-high performance concrete;
D O I：
10.14062/j.issn.0454-5648.20210298
中图分类号：
学科分类号：
摘要：
Textile reinforced ultra-high performance concrete (TR-UHPC) with carbon textile and steel fiber was prepared. The tension stiffening behavior of TR-UHPC and synergistic effects of textile and short fibers were investigated by means of experimental and numerical studies on the mechanical characteristics of textile, UHPC, interfacial bonding and TR-UHPC composites. The prepared TR-UHPC exhibits a pronounced strain-hardening behavior with multiple cracking. The tensile strength, post-crack stiffness and ductility are apparently improved. The tensile behavior of TR-UHPC is mainly affected by the bridging mechanism of steel fibers as the volume fraction of steel fiber is increased from 0.5% to 1.5%. The bonding characteristics between textile and UHPC governs as the fiber volume fraction further increases to 2.0%. The numerical model incorporates the primary mechanisms including tensile properties of textile, stress-crack width relationship of UHPC and interfacial bonding between textile and UHPC. It is indicated that the simulated data by the model are in reasonable agreement with the experimental results. © 2021, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：2364 / 2374
页数：10
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