strengthening under load

The method of experimental tests of reinforced concrete beams, strengthened additional prestressed reinforcement under load (at different levels of prestressing andactive load), with the corresponding control a strength of normal cuts and prestressed additional reinforcement.Developed and presented a program of experimental tests to assess strength parameterof normal cutsexperimental reinforced concrete beams,reinforced prestressed reinforcement under load. Based on the research program developed design prototypes and selected characteristics necessary materials.

In this paper for calculation of reinforced concrete columns strengthened with carbon laminate with suggestions based on the method of calculation according to the recommendations NIISK and Sika on the basis of deformation model calculation according to regulations . To determine the additional eccentricity introduced by bending flexibility factor, which is derived using in Eurocode 2. The algorithm for calculating strengthened at the primary level loading columns.