Abstract
The paper presents the results of studies proposing to use steel hoop and mortise-tendon joint (SHMT), to reinforce beams with defects (biological corrosion, cracks) in order to restore their load-bearing capacity. The proposed solution, consisting in encapsulated or bonding steel tube outside of the damaged part, is suitable for restoration work in historic buildings. Moreover, owing to the fact that the reinforcing steel tubes are situated outside the lap joint , the possibility that the crack of reinforcing joint will reduced and the fire resistance of the element is increased. The displacement loading control method was adopted in bending test. The restoration in the load-bearing capacity of the tested beams amounted from 4.42% to over 44.52%.
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