Innovative Method for the Construction of Cable-Stayed Bridges by Cable Crane

Yachihe Bridge in China is a hybrid cable-stayed bridge with concrete decks at the side spans and a steel truss deck at the mid-span. The 800-m-long truss deck breaks a new record as the longest steel truss cable-stayed bridge in the world. Constrained by site terrain, poor transportation conditions and limited time, a cable crane was adopted for the erection of the 16-m-long truss deck segments, marking the first time that a cable crane has been used in the deck erection of a cable-stayed bridge. This paper primarily deals with the challenges faced and solutions formulated during the bridge construction process, and also presents field load tests for the cable crane.