An experimental study and a proposed theoretical solution for the prediction of the ductile/brittle failure modes of reinforced concrete beams strengthened with external steel plates

An experimental study and a proposed theoretical solution for the prediction of the ductile/brittle failure modes of reinforced concrete beams strengthened with external steel plates

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An experimental study is conducted and a theoretical solution is proposed in the present study to investigate the ductile/brittle failure mode of reinforced concrete (RC) beams strengthened with an external steel plate.In the present experimental study, 6 steel plate-strengthened RC beams and 1 non-strengthened RC beam are fabricated and tested under 4-point bending loads.Then, a new theoretical model is successfully developed to predict the rupture mechanism of the RC beams strengthened with external steel plates.The model is based on the observed experimental results regarding to crack formations, craggy range sauvignon blanc 2022 and it is can be used to determine the distance between vertical cracks and to quantitatively predict the ductile/brittle failure mode of plate-strengthened RC beams.The experimental study shows that the failure mode is commonly based on the sliding of concrete along with the iphone 13 price ohio external plate at a random location.

This slip is limited between two vertical cracks, from which the maximum stresses in the external steel is determined.Through result validations, the stresses/strains in the soffit plate, crack distances, and system failure modes as predicted by the present theoretical solution are found to excellently agree with those of the previous and present experimental results.This study may help to improve the design of such plate-strengthened RC beams to target on a better ductile performance, that has not been addressed before.