SHM of golden horn metro crossing bridge in Istanbul – initial assessment, permanent monitoring and data analysis

A new metro bridge was constructed across the Golden Horn, Istanbul. The bridge consists of 2 approach viaducts, a cable-stayed bridge with a main span of 180 meters and a swing bridge. A metro station is situated in the centre of the main bridge. The deck of the cable-stayed bridge and the swing bridge are designed as steel structures. The bridge was equipped with a sophistic structural health monitoring solution, which will be delivered by VCEVienna Consulting Engineers. The paper describes the solution proposed by VCE. It covers the development and design of the instrumentation and the system for the monitoring of the behaviour, the performance and the condition of the structure. The monitoring concept consists of 3 subtasks:  Initial measurements and investigations after completion of the structure.  Permanent structural health monitoring.  Portable equipment for periodic assessment. A special focus is on the data management part, which includes data archiving, data analysis and the presentation of the monitoring data to the operation personal and to the client. Apart from the control room devices the system will include a web-user interface, which allows a secure access to the monitoring data and results with mobile devices from anywhere and anytime.