Punching Shear Characterization of Steel Fiber-Reinforced Concrete Flat Slabs

被引：1

作者：

Mohammed A.H. ^{[1
]}

Mubarak H.M. ^{[1
]}

Hussein A.K. ^{[2
]}

Abulghafour T.Z. ^{[2
]}

Nassani D.E. ^{[3
]}

机构：

[1] Civil Engineering Department, University of Diyala, Diyala

[2] Civil Engineering Department, Bilad Alrafidain University College, Diyala

[3] Civil Engineering Department, Hasan Kalyoncu University, Gaziantep

来源：

HighTech and Innovation Journal | 2022年 / 3卷 / 04期

关键词：

Concrete Structures; Crack; Flat Slab; Punching Shear Resistance; Steel Fiber Reinforced Concrete;

D O I：

10.28991/HIJ-2022-03-04-08

中图分类号：

学科分类号：

摘要：

Punching shear failure in thin slabs under concentrated loads can cause shear stresses near columns. The use of steel fiber is a practical way to improve a slab-column connection's punching strength and deformation capacity. In this study, the capacity and behavior of steel fiber-reinforced concrete flat slabs are examined under punching shear force. Ten small-scale flat slabs were tested, eight of which had steel fiber and two without. Two parameters are studied in this paper, which are the fiber volume ratio (from 0% to 2%) and the stub column load shape (circle and square). The test results include the concrete compressive strength, crack patterns, punching shear, and load-defection behavior of the slabs. Based on the experimental results, it was found that the punching shear capacity of slabs with steel fiber (S5) increased by 21.8% compared to slabs without steel fiber (S1), and the slabs with steel fiber had more ductility compared to the slabs without fiber. © Authors retain all copyrights.

引用

页码：483 / 490

页数：7

共 26 条

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