Construction Techniques for the 180-m Super-Long Steel Strands in the First Longjing Flyover

With the First Longjing Flyover in Shenzhen city as an example, the paper introduces the construction techniques for the 180-m super-long steel strands of the flyover, during the construction of which the steel strands were first fixed, and then the corrugated pipes to ensure the effect of the pre-stressing operation, and a few new techniques were adopted to determine the values of K and μ of the super-long steel strands. It has been proved that both the construction techniques and the parameters we adopted in the construction are effective and correct. The paper may serve as a reference for the construction of similar bridges.