On June 19, with the completion of the assembly of the last steel structural member, the new Guangzhou Baiyun railway station was officially capped, marking the completion of the overall steel structure of the station building and the full entry of the indoor and outdoor decoration stage. Guangzhou Baiyun railway station is one of the main passenger stations in the "five main and four auxiliary" of Guangzhou railway hub. It is located in the south of Baiyun District, Guangzhou, with a total construction area of about 453000 square meters, a station building area of 144500 square meters, and a station scale of 11 sets and 24 lines. It will introduce Beijing–Guangzhou railway, Beijing Guangzhou High speed Railway, Guangzhou Zhanjiang High speed Railway and other lines, and simultaneously support 6 subway lines and other traffic connection facilities and public spaces. After the completion of Guangzhou Baiyun railway station, it will undertake all ordinary speed trains of Guangzhou railway station and Guangzhou East railway station, and become one of the largest TOD integrated transportation hubs in Asia. The Guangzhou Baiyun railway station, a complex steel structure with a capacity of over 100000 tons, adopts the design concept of "Yunshan Pearl River, Prosperous Flowers". The total steel consumption of the station building steel structure is about 118000 tons, which is composed of three parts: roof, "petal" and steel column beam. The roof steel structure weighs 8100 tons, with a total area of 95224 square meters, which is equivalent to 13 standard football fields, said Liu Jun, chief engineer of the Guangzhou Baiyun railway station Project of China Railway Construction Engineering Group, The total weight of the steel structure of the station building of Guangzhou Baiyun railway station is more than 100000 tons, and there are more than 100000 large and small components. In order to realize the whole process traceability and control of each component, China Railway Construction Engineering Group, through the self-developed steel structure full life cycle management platform, introduces the concept and technology of "BIM+Internet of Things+Mobile+Cloud end" according to the characteristics of steel structure construction, and divides the management of steel structures into design, deepening, production, transportation, installation There are six stages of acceptance, and the whole process data of the six stages are bound to the three-dimensional model of the steel members one by one, realizing the process tracing of the whole life cycle of more than 100000 steel members in Guangzhou Baiyun railway station and the fine management of three-dimensional visualization. The "petal" shaped steel structure of Guangzhou Baiyun railway station, the first large-scale railway engineering project in China to use robots for construction, has a large volume, many nodes, and long overhang. It faces many difficulties, such as a wide range of operations in special environments, many cross operations in various disciplines, high requirements for construction protection near existing lines, and high risk of high-altitude Operational risk. To ensure the controlled welding quality of steel structures, the project team of China Railway Construction Engineering Group has tried out the "trackless all position crawling welding robot" for the first time. This robot applies visual sensing technology, an intelligent seam tracking system, and a welding torch swing system. It does not require preset tracks or guidance, and the equipment's magnetic attraction can walk on the components to complete welding operations. It can achieve 90 degree vertical up, vertical down, and horizontal crawling welding, ensuring timely and high-quality completion of the project. It is reported that Guangzhou Baiyun railway station will be completed by the end of 2023. After completion, it will become a new TOD large-scale comprehensive transportation hub with Lingnan characteristics, featuring station city integration, traffic integration, functional integration, ecological integration, and intelligent integration. Adhering to the construction concept of "smooth integration, green warmth, economy, art, intelligence and convenience", Guangzhou Baiyun railway station is equipped with a tourist center, long-distance passenger transport center, tourist bus station and urban bus station. After getting off the supporting urban public transport, passengers can enter the station and wait for a bus in less than 2 minutes through the connecting platform. The walking distance is less than 100 meters, which is really practical