The researchers designed and built a special form to help construct a bridge in Nanjing. This form included steel columns, beams, and a system to move the parts into place. They used a method to lift and install large, heavy parts of the bridge with a special tool called a launching nose. This tool could move sideways and up and down to put the parts in the right spot. By using this method, they were able to save time and money, and make the construction process more efficient.