Huangmao Hai Bridge
Zhuhai, China
After completion, the route will be 31 kilometers long and the cable-stayed bridge will be 720 meters wide. The bridge contains a trio-tower and a double span bridge design. The pylons will soar to a height of 248 meters and 257 meters. It will be part of the bridge network in the Greater Bay Area, which includes Hong Kong – Zhuhai – Macao Bridge, Shenzhen - Zhongshan, Nansha and Humen Bridges.
Challenge:
The shape of the pylon starts with a round section at the bottom and turn oval in the middle part with a decreasing section width. At the top, the pylon increases th section width and turn again from oval shape to a round shape.
Solution:
Doka used large-area formwork Top50 which climbed with the SKE100 plus platform. For the challenging geometry, Doka developed a special suspension shoe to arrive a satisfactory solution.
Project data
Year of completion
2024
Country
China
City
Zhuhai
Contractors
MBEC / Changda / CCCC
Building data
Construction method
Automatic climbing formwork
Construction Type / Segmentation
Mast - Pylon
Number of cables
46 / 44
Cross sections
Diameter: 20m / 18m
Changes cross section
round - oval - round
Length cable-stayed bridge
720m
Total height
249m / 257m
Section height
6,0 m
Nb. of Sections
44 / 45
Pier/Pylon inclination
3,6°/-0,8° // 4,0°/ -0,7°