Zhengzhou-Jinan Railway Zhengzhou Yellow River Super-Major Bridge

The Zhengzhou Yellow River Special Bridge is a key control project for the Zhengji High-Speed Railway, which crosses the Yellow River. It is located in Zhengzhou City, Henan Province, connecting Zhengzhou and Jinan. The main bridge and the southern approach bridge of this bridge have a total length of 4,377 meters and adopt a dual-layer construction form of road and railway. The main bridge adopts a combination of simply supported steel truss and continuous steel truss. The three-span continuous steel truss structure is composed of 8 continuous steel trusses, setting three records in China for "the longest length, the largest span, and the highest design speed" of ballastless track steel-concrete composite continuous steel truss bridges. 

In May 2020, the steel truss of the bridge was completed and closed. The south approach bridge of the bridge employed a total of 12 sets of viscous dampers. The models and parameters are as follows: