Quanzhou Bay Cross Sea Bridge

The Quanzhou Bay sea crossing bridge is located in Quanzhou, Fujian Province, across the Quanzhou Bay, which is an important part of the Quanzhou city's ring highway. The bridge is 12.45 kilometers long, is divided into shallow water area south of South Bridge approach, land area (six lanes), Hanjiang Bridge, south shallow interflow main bridge (eight lanes), bridge, South Bridge deepwater navigation (70 + 130 + 400 + 130 + 70 m) framing Twin Towers cable-stayed bridge, North the shore deepwater bridge, bridge, north shore shallow water XiuTu interflow main bridge nine sections. The base of the line is 14.22 kilometers long. The length of the bridge is 10km.

The main bridge with span arrangement of the Twin Towers 70m+130m+400m+130m+70m=800m transverse connection composite beam cable-stayed bridge (three column door shaped tower); deepwater approach combined structure with 70m span prestressed concrete continuous steel girder; shallow water bridge with 50m span prestressed concrete continuous girder bridge; land area approach mainly uses 30m span prestressed concrete continuous box girder.

Quanzhou bay bridge was built in 2008. Due to large traffic volume and overload, the bridge load increased and cracks appeared on beam and slab. After the completion of the Quanzhou Bay Bridge, the relevant departments will carry out safety inspection and take some maintenance measures every year. In view of the crack problem of the beam plate, it is decided to seal and sew the cracks at the bottom of the bridge.

Strengthening time: February 2015

Structural strengthening products: Shanghai Horse Construction HM-120ML structure repair glue, HM-120L crack injection adhesive