OVM Successfully Completed the Installation Services of hangers and tie cables for Gaoqing-shanghe Yellow River Bridge
Recently, the OVM team has successfully completed the critical task of hangers and tie cables installation and tensioning for the Gaoqing-shanghe Yellow River Bridge, achieving the system - conversion from the temporary support to the arch rib load - bearing. This has laid a solid foundation for the bridge's completion and opening to traffic in 2025.
The Gaoqing-shanghe Yellow River Bridge is 3,425m long, with the main bridge being 915m long. The span arranged as (190 + 260 + 260 + 190)m. It adopts an arch - beam separation and arch - pier solid - joint structural system, with the bridge deck system using a semi - floating four - arch continuous unequal - span through - type steel - tube concrete tied arch bridge. It combines structural strength with aesthetic value and has set "four firsts":
First in construction scale among the world's multi - span continuous through - type concrete - filled steel tube (CFST) tied - arch bridges.
The 915m - long tie cable is currently the world's longest.
The first arch abutment in China to adopt a steel - concrete composite design.
The first through - type steel - tube concrete tied arch bridge across the Yellow River in China.
OVM undertook the design, manufacture, and installation of 24 tie cables and 216 hangers for the bridge. To withstand the Yellow River's corrosive environment, the components were built for durability, strength, and precision. Tie cables were made of 1860MPa steel strands, coated with epoxy resin and protected by HDPE sheathing, aiming for a 50 - year lifespan. Hangers, made of 1960MPa galvanized steel wires, offered higher tensile strength, reducing wire usage and structural weight while enhancing load capacity. They passed a 2 - million - cycle fatigue test and featured a corrosion - proof design for over 50 years of service.
As a full life - cycle system solutions provider, OVM's innovation in materials and processes has created a full - chain service focused on ultra - high - strength hangers and epoxy - coated tie cables. Using Smart Prestressing Tensioning equipment and advanced construction techniques, OVM provides reliable cable system solutions for bridges.
