Hand pulled haws are used for the construction of the catwalk on the Huajiang Canyon Bridge

In the deep mountains and canyons of Guizhou, the Huajiang Canyon Bridge spans across the natural ravine. It is a controlling project of the Liuzhi to Anlong Expressway, with a distance of 625 meters between the main bridge deck and the river surface at the bottom of the valley. After completion, it became the world's first high bridge.

The catwalk in bridge construction plays a crucial role. It is a temporary working channel during the construction of suspension bridges, providing a foundation for subsequent main cable installation, cable clamp and suspension cable installation, and ensuring the safe passage of construction personnel and materials.

Building a catwalk requires multiple tools to work together. Workers need to use steel wire ropes and anchorages to construct the catwalk load-bearing system, and also use winches for material lifting. Among them, the chain hoist plays an irreplaceable role. In the complex terrain of Huajiang Canyon, chain hoists are used to tighten and fix the load-bearing cables and surface cables of the catwalk. It is easy to operate and can accurately adjust the tension of the rope by manual pulling, ensuring the smoothness and stability of the catwalk. Compared to large mechanical equipment, chain hoists are compact in size, easy to carry, and can perform their skills in narrow spaces. They are flexible in dealing with various complex working conditions, ensuring the smooth construction of catwalks.

The construction of the catwalk for the Huajiang Canyon Bridge has started normally, and the chain hoist plays an important role in the catwalk construction process, accelerating the progress of the bridge construction.