Bridge Engineering - Hong Kong Zhuhai Macao Bridge

Project Overview

· The Hong Kong Zhuhai Macao Bridge is the world's longest sea crossing bridge, with the main structure made of corrosion-resistant bridge steel (such as Q345qD) to cope with high salt spray environments in the ocean.

Steel application

· Steel box girder: high-strength steel plate with a thickness of 30-80mm

· Bridge pier: Stainless steel composite steel plate anti-corrosion

Technical highlights

· The galvanizing and coating process on the surface of steel extends its service life to 120 years.

Achievements

After its opening, the transportation efficiency of the Greater Bay Area has increased by 40%, with a steel consumption of approximately 420000 tons