Szukana fraza: [Abstract = "The reinforcement effect was verified in destructive test sperformed on two columns without reinforcement and the two other columns reinforced with the chosen technique. Due to the expected very high load capacity of the axially loaded column, the test rig was designed in such a manner that the force could be applied on big eccentricity. For this purpose a special base was prepared \(comp. Fig. 1\). Destructive tests have confirmed the high effectiveness of the adopted strengthening technique."]