Construction for China's first integral hoisting operation of a mega cross-sea bridge is taking shape in east China's Zhejiang Province.
The Shuangyumen Bridge is a key part of the Liuheng Expressway Bridge's phase II project that was launched to improve transportation links to the Zhoushan Archipelago New Area, which is a state-level area focusing on the development of marine economy.
The steel frame of the Shuangyumen Bridge's integral hoisting operation needs 16 H-shaped beams and 840 rebars, weighing 150 tons. This is the equivalent of hoisting 100 passenger cars in one sitting.
When the framework is lifted up, more than 800 joints need to be docked from a 40-meter height.
"The conditions here are quite tough. The corrosion from sea wind and chloride ions has caused rusting on the steel bars. Therefore, we've thickened the protective layer," said Huang Chong, technician at the Liuheng Expressway Bridge's phase II project.
Only 24 years old, Huang's body now bears the brunt of the laborious fieldwork which has been ongoing for the last 10 months.
"As a man, it doesn't matter if my skin gets darker or rougher. What matters most is to ensure that there is good quality concrete, and a high-quality project overall," Huang said.
In recent days, rain and fog have hampered progress, with many workers taking on night shift when conditions are a little mild.
Weng Jianmin, is a gen-Z technician in the project. He has to collect construction site data by climbing up and down a long, caged ladder several times a day.
"Construction engineering can be a rough job, but it also needs utmost care and precision," said Weng.
Construction for China's mega hoisting operation of cross-sea bridge underway
