At 17:58 on July 15, the 99 meters long steel truss roof with a maximum span of 41.8 meters and a total weight of about 2380 tons was being lifted by 12.7 meters. The project, undertaken by China Railway Construction Group, completed the phased construction task 15 days in advance, marking the phased progress of the first phase project of Changde station building, which will be fully transferred to the metal roof and decoration construction stage.