Behavior Investigation of Reinforced Concrete Members with Flexural Strengthening Using Strain-Hardening Cementitious Composite

被引：20
|
作者：
Zhang, Yongxing [1 ]
Ueda, Naoshi [2 ]
Nakamura, Hikaru [3 ]
Kunieda, Minoru [4 ]
机构：
[1] Nanjing Forestry Univ, Dept Civil Engn, Nanjing, Jiangsu, Peoples R China
[2] Kansai Univ, Dept Civil Environm & Appl Syst Engn, Suita, Osaka, Japan
[3] Nagoya Univ, Dept Civil Engn, Nagoya, Aichi 4648601, Japan
[4] Gifu Univ, Dept Civil Engn, Gifu, Japan
来源：
ACI STRUCTURAL JOURNAL | 2017年 / 114卷 / 02期
基金：
中国国家自然科学基金;
关键词：
flexural behavior; numerical approach; reinforced concrete; strain-hardening cementitious composite; strength; zero-span tensile model; FAILURE BEHAVIOR; REPAIR; PERFORMANCE;
D O I：
10.14359/51689436
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Strain-hardening cementitious composite (SHCC) has been increasingly used in strengthening reinforced concrete (RC) structures, whereas the behavior of an RC member with flexural strengthening using SHCC has not been clearly understood because it is affected by varied factors. This paper aims to clarify the aforementioned behavior by experimental and numerical investigations in which the numerical result is accurately verified using a newly developed numerical approach considering the influence of the tensile strain capacity of SHCC, presence of localized concrete cracks, and varying SHCC layer thickness. In the numerical approach, a zero-span tensile model with fictitious material is adopted to obtain the average tensile behavior of the SHCC layer for strengthening an RC member with cracks.
引用
收藏
页码：417 / 426
页数：10
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