Recently, with the precise placement of the final T-beam, the left carriageway T-beam erection of the Fengtai Luohe Bridge in the Luanlu Yushansan Project was successfully completed. This achievement connected the bridge to the tunnel in section 2, resulting in the full span completion of both carriageways.
The Lushi to Luonan (Henan-Shaanxi provincial border) Expressway is part of the first batch of segmented projects in Henan Province’s “13445 Program” for highway construction. With a total investment of 9.93 billion yuan, the expressway stretches 45.68 kilometers, featuring a four-lane dual carriageway design with a design speed of 100 km/h. The project is scheduled for completion and opening to traffic in 2025.
The third section of the project spans 11.84 kilometers and is characterized as a typical mountainous and hilly terrain project, with a bridge-tunnel ratio of 57%. The Fengtai Luohe Bridge, a key structure in this section, has a total length of 684 meters and a single carriageway width of 12.56 meters. The superstructure employs a simple-supported to continuous pre-stressed concrete T-beam design. The substructure consists of column piers, rectangular piers, and thin-walled hollow piers. The entire bridge incorporates 170 40-meter T-beams in its design.
To ensure the smooth erection of the precast T-beams for the Fengtai Luohe Bridge, the project team developed a detailed safety pocket book for launching gantry operations and conducted real-time dynamic safety technical briefings. They maintained strict oversight on construction safety and implemented comprehensive on-site emergency measures. During the beam erection process, the team rigorously followed protocols such as leadership supervision for launching gantry span crossings, joint inspections of the launching gantry by various departments, daily, weekly, and monthly checks of the launching gantry, and third-party non-destructive testing. These measures ensured safety and control throughout the entire process of lifting, transporting, and erecting the beams.