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SHEAR STRENGTH BEHAVIOR OF HIGH STRENGTH CONCRETE BEAMS WITH STEEL FIBERS ADDED TO THE MIX

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Last updated: 13 Dec 2022

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Steel fiber
High Strength
Crack Pattern
Volume fraction
SHEAR STRENGTH BEHAVIOR OF HIGH STRENGTH CONCRETE BEAMS WITH STEEL FIBERS ADDED TO THE MIX
ICASGE'23

Abstract

Some of concrete structures may be subjected to very high loads, and these loads affect the behavior and safety of the various structure elements, so lot of researches and studies conducted to study the behavior of these structure elements, and enhancing, specially its beam shear strength. One of these studies, use steel fiber in concrete structure elements mix for enhancing flexure and shear strength. In this study, High strength reinforced concrete beams with steel fiber added to the mix studied for enhancing beam shear strength behavior. Twelve beams casted using high strength reinforced concrete mix of rectangular cross section with dimensions of 120 mm width and 250 mm depth. The length of all beams is 1500 mm from support to support. Statically applied load on two point loads. Specimens divided into three groups A, B and C, with different applied load location apart from edge support as a ratio of depth of the beam to (a/d), this ratio taken as 1.5, 1.7 and 2.2 according to the previous group A, B and C respectively. Each group contains four beam specimens one as control beam without any steel fiber in the mix, and the other three beams specimens have different volume fraction of steel fiber added to the concrete mix, which is, 0.25%, 0.5% and 0.75% respectively. The results such as crack patterns, failure modes, loads deflection curves, steel strains, ductility, energy absorption, and stiffness degradation for the beams studied in this program.

Keywords

Steel fiber, High Strength, Crack Pattern, Volume fraction

Authors

First Name

Nasr

Last Name

Z. Hassan

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First Name

Mostafa

Last Name

A. Osman

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First Name

Ata

Last Name

E. Shoaib and Ahmed M. Yosry

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Volume

ICASGE2017

Issue Date

1 Jan 2017

Publish Date

29 May 2022

Link

https://icasge.conferences.ekb.eg/article_1489.html

Order

218

Publication Type

Conference

Publication Title

ICASGE'23

Publication Link

https://icasge.conferences.ekb.eg/

Details

Type

Article

Locale

en

Created At

13 Dec 2022