Determination of the conditional critical force of flexible strengthened concrete struts reinforced with composite materials
Abstract
Determination of the conditional critical force of flexible strengthened concrete struts reinforced with composite materials
Incoming article date: 04.03.2021On the basis of experimental data, it was found that when calculating flexible reinforced concrete racks reinforced with composite materials in the transverse direction, the strength of the elements is underestimated by the norms. The influence of the composite reinforcement is not taken into account when calculating the stiffness D, the conditional critical force Ncrc and the slenderness coefficient η. Experimental data from the experiments carried out showed that the deflections of the reinforced struts were less than similar, not reinforced specimens, therefore, the influence takes place. Based on the analysis of the results of experiments, in the methodology of norms when calculating D, proposals were made that take into account the step of the transverse amplification at different eccentricities of the load application.
Keywords: Determination of the conditional critical force of flexible strengthened concrete struts reinforced with composite materials