Methoden zur Bewertung abgebauter Stahlbetonelemente für deren Wiederverwendung

Assessment methods for dismantled reinforced concrete elements in view of their reuse

The aim of the newly established Collaborative Research Center CRC 1683 “Interaction Methods for the Modular Reuse of Existing Structures” is to research the genuine reuse of concrete structures at a structural level and to develop fundamental scientific methods for this purpose. The idea is to deconstruct the existing structures into elements in a planned manner instead of demolishing them. To this end, the extracted elements must be characterized in terms of their properties, refurbished or strengthened if necessary, and assembled into new load-bearing structures in a modular fashion. Over the planned duration of the CRC the entire process chain will be systematically and collaboratively covered within sub-projects, project groups and interaction chains. The interaction chain “Governing Uncertainties” presented herein focuses on the development and testing of experimental, numerical and data-driven methods and strategies for a comprehensive yet fast and non-destructive characterization of the dismantled elements. On this basis, durability and load-bearing models are to be developed to enable the reliable prediction of the remaining service life under various load scenarios and exposures during reuse taking into account the multiple uncertainties. This paper presents the aims, interactions and methods of the sub-projects involved in the interaction chain.