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Punching Shear Characterization of Steel Fiber-Reinforced Concrete Flat Slabs

Mohammed, Abbas H. / Mubarak, Huda M. / Hussein, Ali K. / Abulghafour, Taymour Z. / Nassani, Dia Eddin

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. Doi:10.28991/HIJ-2022-03-04-08 Full Text: PDF

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Punching Shear Characterization of Steel Fiber-Reinforced Concrete Flat Slabs

Mohammed, Abbas H. / Mubarak, Huda M. / Hussein, Ali K. / Abulghafour, Taymour Z. / Nassani, Dia Eddin

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. Doi:10.28991/HIJ-2022-03-04-08 Full Text: PDF

Punching Shear Characterization of Steel Fiber-Reinforced Concrete Flat Slabs

Mohammed, Abbas H. / Mubarak, Huda M. / Hussein, Ali K. / Abulghafour, Taymour Z. / Nassani, Dia Eddin

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. Doi:10.28991/HIJ-2022-03-04-08 Full Text: PDF

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Title:

Punching Shear Characterization of Steel Fiber-Reinforced Concrete Flat Slabs

Contributors:

Mohammed, Abbas H. (author) / Mubarak, Huda M. (author) / Hussein, Ali K. (author) / Abulghafour, Taymour Z. (author) / Nassani, Dia Eddin (author)

Publication date:

2022-12-01

Remarks:

doi:10.28991/HIJ-2022-03-04-08
HighTech and Innovation Journal; Vol 3, No 4 (2022): December; 483-490 ; 2723-9535

DOI:

https://doi.org/10.28991/HIJ-2022-03-04-08

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

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

Classification:

DDC: 690

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