Research, development and application of railway bridge information construction management platform based on BIM+GIS+IoT technology

In order to resolve the high resource consumption, labor shortage and low information integration problems in the existing extensive construction mode of railway bridges, in combination with railway bridge engineering characteristics, after a general research on intelligent construction necessity and a variety of cutting-edge information technologies, this paper presents a railway bridge information construction management platform which is based on "cloud + end" system, combining with BIM, GIS, cloud computing, big data, Internet of Things, artificial intelligence and other technologies. The main technical route is as follows: in terms of functional architecture, the platform includes eight modules related to management process and digital construction, ensuring clients two interaction modes: web terminal and mobile terminal. In terms of logical architecture, the platform takes spring cloud as the technical framework, using spring boot to develop distributed systems with microservices architecture, and decomposing various business functions into multiple discrete services; In terms of physical architecture, the platform mainly includes front-end server, database server, application server, BIM model management server and firewall, all of which are deployed in Alibaba cloud. The platform is applied to the Changqing Yellow River Bridge Project of Zhengji Railway. Results show that this platform can significantly improve the production efficiency, management efficiency and decision-making ability on site, realize intelligent site with digital twin characteristics, ensure construction safety and save project investment.