The Shear Capacity Estimation of Reinforced Concrete Short Beams with Steel Fiber by Digital Image Correlation Approach

被引：0
|
作者：
Hemstapat, Narawit [1 ]
Okubo, Kazumasa [1 ]
Niwa, Junichiro [1 ]
Iwanami, Mitsuyasu [1 ]
机构：
[1] Tokyo Inst Technol, Dept Civil & Environm Engn, 2-12-1 Ookayama,Meguro ku, Tokyo 1528552, Japan
来源：
INTERNATIONAL JOURNAL OF CONCRETE STRUCTURES AND MATERIALS | 2023年 / 17卷 / 01期
关键词：
Compressive strut; DIC; Short beam; Steel fiber; Shear; STRENGTH; BEHAVIOR; CRACKS; SIZE; DEEP;
D O I：
10.1186/s40069-023-00597-1
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This research aimed to estimate the shear capacity of reinforced concrete short beams with steel fiber (RSF short beams) using DIC (digital image correlation). Four-point bending tests of RSF short beams with shear span ratio (a/d) of 1.0, 1.5, and 2.0 were conducted. 0.5% or 1.0% volume fraction of steel fiber was used. The distribution of minimum principal strain (sigma(2)) was obtained from DIC then the width of compressive strut was evaluated. The effects of volume fraction of steel fiber and shear span ratio were investigated. Finally, the shear capacity of RSF short beams was estimated with the help of DIC.
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页数：12
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