Aggregation von Zustandsindikatoren aus Inspektions- und Monitoringdaten im Brückenbau

Abstract

Aggregation of condition indicators for bridge structures based on inspection and monitoring data. In Germany, the assessment of existing structures is based on a uniform structural rating obtained from regular in situ inspections. However, a method to include monitoring data into the structural rating does not yet exist. Though, a structural monitoring can be used to monitor the occurrence or the growth of damages, thereby reducing the risks emanating from theses damages. Furthermore, calculative safety deficits can, in many cases, be compensated by specific monitoring measures. Challenges concerning the integral assessment result from the differences in the assessment of structural damages (rating) and limit state checks (utilization). This paper presents a method which aggregates monitoring data and structural damages into a real time condition indicator that is also comprehensible for non-experts. Apart from the general rating procedure that includes well-known elements of the rating system of the German structural information database “SIB-Bauwerke”, two use cases of the smartBRIDGE concept for the Köhlbrandbrücke in Hamburg will be shown. The use cases consist of two current calculative safety deficits which are compensated by monitoring measures.