WSTA 15th Gulf Water Conference

WSTA 15th Gulf Water Conference
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Using of the reclaimed steels fibers on the strengthening of reinforced concrete frames structures

Nadia Talbi, Aghiles Nekmouche, Mohand Ould Ouali

https://doi.org/10.5004/ic202416

Using of the reclaimed steels fibers on the strengthening of reinforced concrete frames structures

Nadia Talbi1, Aghiles Nekmouche2, Mohand Ould Ouali1

1National Earthquake Engineering Research Center, CGS, Rue Kaddour Rahim, BP 252 Hussein-Dey, Algiers, Algeria
2Laboratory Elaboration and Characterization of Materials and Modelling (LEC2M), Mouloud MAMMERI University of Tizi Ouzou, Bp17rp, 15000 Tizi Ouzou, Algeria

https://doi.org/10.5004/ic202416

ABSTRACT

This work is dedicated to the study of the influence of recovered and industrial metal fibers on the fracture behavior of frames subjected to seismic stress. The objective is to revalue these fibers from steel from used tires for reuse in the construction field. The modeling of frames is carried out using the Abaqus calculation code. We first calibrated the model by calibration with the experimental results of an ordinary concrete frame (control). Then, we determined the material parameters of fiber-reinforced concretes. Finally, we conducted simulations on frames where the nodal zones were reinforced with fiber-reinforced concretes with different percentages of fibers by weight. The results obtained showed the contribution of the reinforcement of nodal zones with fiber-reinforced concretes on the resistance and ductility of frames. We also showed that reinforcement with recovered fibers was as interesting as with industrial fibers. Finally, we were able to highlight the existence of an optimal size (length) of the reinforcement zone.

Keywords: Recycled fibers; Capacity; Frames; Reinforcement length; Nodal zones

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