crsbg news -pg电子官方

on june 9, with the final weld of the closure section of the steel girder, the welding was completed by crsbg, and the closuring accuracy of the changtai yangtze river bridge was successfully closured with "millimeter level", and the closuring accuracy was controlled within 2 mm.

the main channel bridge of changtai yangtze river bridge is the world's largest road and railway cable-stayed bridge with a span of 1208 meters, almost one span bridge across the river; the special channel bridge is the world's largest span of road and railway steel arch bridge. crsbg is mainly responsible for the largest section of the steel girder and steel tower manufacturing project of the main project of the bridge (across the river), including 44 overall sections of the main channel bridge in changzhou, and the steel girder and auxiliary steel components of the special channel bridge in lu’anzhou and the non-navigable pass bridge in lu’anzhou, with a steel volume of about 137,000 tons.

relying on changtai yangtze river bridge, crsbg has built a new intelligent manufacturing model of "five lines and one system" steel bridge with intelligent plate cutting production line, intelligent plate unit welding production line, intelligent steel girder rod manufacturing production line, intelligent total assembly production line, intelligent painting production line and intelligent control system for workshop manufacturing. comprehensively improve the automation, digitalization, networking and intelligent manufacturing level of steel girder manufacturing. at the same time, the welding accuracy control, the drilling accuracy of the rod and the linear control of the assembly are strictly checked, and this milestone project of china's super-span multi-functional bridge is built with millimeter-level accuracy.

on may 14, 2021, the groundbreaking ceremony of ct-a6 section of changtai yangtze river bridge was held in nantong company of crsbg, marking the official commencement of the changtai yangtze river bridge project. over the past three years, crsbg has deeply promoted standardized management, innovated construction technology, strictly controlled project quality, and updated the "changtai bridge speed" with hard work, laying a solid foundation for the scheduled closure of the bridge.

after the opening of the chang-tai yangtze river bridge, it is of great significance to accelerate the integrated development of cross-river, serve the construction of the yangtze river economic belt, promote the coordinated development of the yangtze river city cluster, and promote the integrated development of the city cluster

in the next step, the changtai yangtze river bridge will complete the construction of steel structure ancillary facilities such as deck guardrail. it is expected that by the end of april next year, dynamic and static load test and delivery acceptance test will be completed, and traffic conditions will be met.