The Largest Space-Asymmetric-Curved-Single Tower Twisted-Cable-Plane Cable-Stayed Bridge-Tuojiang Bridge of Jinjianren Expressway Phase II Project

Abstract

The Tuojiang Bridge of Jinjianren Expressway Phase II Project is located in Jianyang City and the Eastern New District of Chengdu, all the section length is 4.3 km with a total construction and installation cost of about 1.74 billion yuan. The road is classed as both a first-class highway and an urban expressway, with a design speed of 80 km/h for the main line and 40 km/h for the auxiliary lanes. Tongji University Architectural Design (Group) Co., Ltd. designed the main bridge which is an urban landscape bridge with a length of 963 m. The main bridge adopts 45 + 185 + 238 + 45𝑚 single-tower double-cable-plane cable-stayed span layout, and the approach bridge adopts prestressed small box girder structure.