This paper reports on the design of an experimental and theoretical program used to evaluate how strengthening techniques modify the behaviour of high strength concrete columns when using steel tubes and full wrapping CFRP sheets. To verify the theoretical model, the experimental results consisted of compressive strengths of concrete from 600 to 900 kg /cm2 . A steel tube was introduced using steel anchors with different spacing over the column height and different lengths of 5 and 10 cm. The steel anchors have no significant effect on the high strength concrete column. For an economical design, the steel plate is divided into strips with different arrangements. No significant reduction to the strengthening efficiency occurred when reducing the steel tube quantity by 50 % for each 20-cm strip of column height. The effects of changing the steel plate tube thickness on the behaviour of the strengthening column were studied. Comparing the experimental and theoretical results using the Egyptian code, discrepancies were noted between the concrete and steel Egyptian code results.