Anwar Abdalla Elamin, El-Niema I. El-Niema


The paper presents the results of an experimental work performed at the Khartoum University, Civil Engineering Department Structure lab. Six fixed supported slab specimens with varying parameters such as the reinforcement ratio and steel fibers contents have been investigated. The performance of these specimens is analyzed and compared with the theoretical investigations using yield line methods and a nonlinear finite element method adopted by ANSYS. A good correlation of results is shown clearly. It was found that the steel fibers content has an influence ranging from little to significant on the tested properties. Experimental results proved that the steel fibers reinforced slabs had higher strength, higher first crack and ultimate loads, less deflection, less strain in reinforcements, thinner crack, better crack patterns and better ductility compared with normally reinforced concrete slabs. The accuracy of the finite element models is assessed by comparison with the experimental results, which are in good agreement. The load-deflection curves from the ANSYS agree well with the experimental results in the linear range, but after that the ANSYS results are slightly different.


Fibers Reinforced Slab; Isotropic; Orthotropic, Ultimate Load; Finite Element

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