Study on the strengthening of NiTi SMA ring pre-stress concrete structure;

Study of techniques for ring pre-stress of super-long tubes;

The distribution of ring pre-stress, anchoring steel beam and pre-stress, vertical pre-stress of the anchoring zone of the main tower in Songhuajiang cable stayed bridge are introduced and the corresponding construction technologies are clarified in the paper.

Experimental analysis of the extension of the ring prestressed steel bundle with great tonnage in the concrete tower of cable-stayed bridge;