Analysis of concrete beams reinforced by GFRP bars with varying parameters

Shaysh Aziz Mohammed; AbdulMuttailb I. Said

doi:10.1515/jmbm-2022-0068

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Publication Date

Sat Jan 01 2022

Journal Name

Journal Of The Mechanical Behavior Of Materials

Volume

31

DOI

10.1515/jmbm-2022-0068

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Analysis of concrete beams reinforced by GFRP bars with varying parameters

Shaysh Aziz Mohammed

AbdulMuttailb I. Said

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Abstract<p>Structural buildings consist of concrete and steel, and these buildings have confronted many challenges from various aggressive environments against the materials manufactured from them. It contains high water levels and buildings whose concrete cover may be damaged and thus lead to the deterioration and corrosion of steel. It was important to have an alternative to steel, such as the glass fiber reinforced polymer (GFRP), which is distinguished by its great effectiveness in resisting corrosion, as well as its strong tensile resistance. Still, one of its drawbacks is that it has a low modulus of elasticity. This research article aims to conduct a numerical study using the nonlinear finite element ABAQUS program on eight beam models with various parameters such as stirrup spacing, compressive strength, reinforcement layer, and type of bar reinforcement under four-point bending. The result shows that the ultimate load capacity of the GFRP beam is higher than that of a beam reinforced with steel and the number and width of cracks are greater in the GFRP-reinforced beam than in the steel-reinforced beam. In general, the serviceability reflected by cracks and deflection is lower in GFRP-reinforced beams than in steel-reinforced beams with higher serviceability. The results, on either hand, showed the expected behavior of GFRP, which is linear elastic to the failure stage. These beams are divided into four groups of beams with different variables studied to understand GFRP bars’ behavior under static loading. The variables taken in this study are the spacing between the stirrups, the compressive strength of concrete, the effect of the number of layers of reinforcement, and the type of reinforcement bar.</p>

Publication Date

Sun May 01 2016

Journal Name

Journal Of Craniofacial Surgery

Patterns of Pediatric Maxillofacial Injuries

Salwan Yousif Hanna

Waleed Khaleel

Dhuha

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Facial trauma in children and adolescents is reported to range from 1% to 30%. Because of many anatomical, physiological, and psychological characteristics of the pediatric population, maxillofacial injuries in children should be treated with special consideration that is attributable to certain features inherent in facial growth patterns of children. This study evaluated maxillofacial injuries in 726 children in terms of incidence, patterns of injury, causes, and treatment modalities and compared these parameters among 3 pediatric age groups. Intergroup differences were analyzed using Z test for 2 populations' proportion. The results showed that the incidence of pediatric maxillofacial injuries and fractures is higher than that reported el

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Publication Date

Sun Dec 01 2013

Journal Name

Political Sciences Journal

Activities of International Studies Branch

مجموعة

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نشاطات فرع الدراسات الدولية

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Publication Date

Sun Jan 01 2023

Journal Name

Clinical And Surgical Aspects Of Congenital Heart Diseases

Epidemiology of Congenital Heart Diseases

Mustafa Hussein Ajlan

Ahmed Hamid

Haitham

Ameen Abdul Hasan Manea

Yousif Ali

Hiba Hussein

Ali Tarik

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Publication Date

Thu Jul 01 1999

Journal Name

Bulletin Of The Iraq Natural History Museum (p-issn: 1017-8678 , E-issn: 2311-9799)

Hydrophilidae of Iraq (insect , Coleopterws)

M. S.

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This work reports thirty three Iraqi species and one subspecies of Hydrophilidae, distributed in eleven genera under four subfamilies. Of them two species namely Laccobius gracilis Motsch and Laccobius syriacus Guilleb. Are new records for Iraq. The locality data were mentioned for each species.

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Publication Date

Fri Jan 01 2016

Journal Name

International Journal Of Advanced Scientific And Technical Research

Topological Generalizations of Rough Concepts

Digraph

Out-degree sets

In-degree sets

Topological spaces

Subbase

Rough sets

Rough approximations

Rough measures

Y. Y.

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The importance of topology as a tool in preference theory is what motivates this study in which we characterize topologies generating by digraphs. In this paper, we generalized the notions of rough set concepts using two topological structures generated by out (resp. in)-degree sets of vertices on general digraph. New types of topological rough sets are initiated and studied using new types of topological sets. Some properties of topological rough approximations are studied by many propositions.

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Publication Date

Wed Jan 01 2020

Journal Name

دار الكتب والوثائق العراقيه

Essentilas of Atmospheric Sciences - ISBNiraq.org

Abdullah

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Essentilas of Atmospheric Sciences - ISBNiraq.org

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Publication Date

Wed Mar 10 2021

Journal Name

Baghdad Science Journal

phylogentic study of cephalopharyngeal selerites

A.Z.K Muhammad

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drosophila larvare of diffrent speces were subjected to this in order study the structure of cephalopharyngeal armature and mouth more hooks dentition the lines number among

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Publication Date

Sun Feb 02 2020

Journal Name

University Of Baghdad, College Of Education For Pure Sciences / Ibn Al-haitham, Department Of Mathematics

Some Types of Perfect Mappings

j-perfect mappings

j-ω-perfect mappings

-ω-perfect mappings

weakly -ω-perfect mappings

strongly-ω-perfect mappings

nm- j-ω-converges to a subset

nm- j-ω-directed toward a set

nm- j-ω-closed mappings

nm- j-ω-rigid set

nm- j-ω-continuous mappings

nm- j-ω-perfect mappings in bitopological.

GHIDAA SADOON

Y. Y.

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The aims of this thesis are to study the topological space; we introduce a new kind of perfect mappings, namely j-perfect mappings and j-ω-perfect mappings. Furthermore, we devoted to study the relationship between j-perfect mappings and j-ω-perfect mappings. Finally, certain theorems and characterization concerning these concepts are studied. On the other hand, we studied weakly/ strongly forms of ω-perfect mappings, namely -ω-perfect mappings, weakly -ω-perfect mappings and strongly-ω-perfect mappings; also, we investigate their fundamental properties. We devoted to study the relationship between weakly -ω-perfect mappings and strongly -ω-perfect mappings. As well as, some new generalizations of some definitions wh

Publication Date

Sat Jan 01 2022

Journal Name

Encyclopedia Of Smart Materials

Modeling Behavior of Magnetorheological Fluids

Maher Y.

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(2)

Publication Date

Mon Jul 01 2019

Journal Name

Iop Conference Series: Materials Science And Engineering

Optical Diagnosis of Prostate Cancer

Salim J

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