<p>Reassessment of masonry arches necessitates feasible methods for analysing the static behaviour of the persisting structure and an applicable way how to calculate the remaining load bearing capacity. Especially when a quick assessment of a structure is necessary, easily measurable characteristics, such as geometric properties have to be used. In this paper, the existing Application BRASSCO-NG is extended for masonry arch bridges by implementing the methodology described in paper [16] of this conference proceedings. Embedded into a worked example, the application of the tool is explained in detail from the first reconnaissance to the interpretation of the results. A subsequent benchmark evaluation to the static calculation and the empirical MEXE methodology compares the outcome to the techniques currently used in military and civil engineering. Even though the tool is mainly aimed for military application, the basic structure can easily be adopted for civil use, e.g. the rapid assessment of a structure after a natural disaster.</p>
<p>Most of the infrastructure in Europe dates back to the midst of the 20th century. In recent years it became more and more important to conserve and revamp this existing network of traffic roads and bridges to meet the actual and future requirements of the society. With the introduction of the DIN 1045-1 in 2001 and the actual generation of the Eurocodes in 2012-2013 the re-evaluation of existing structures, i.e. especially bridges, became more difficult when using these technical rules as a base. In many cases the new calculations resulted in a significant smaller load-bearing capacity than the constructions were designed for back in the day. In particular, re-evaluations of the shear capacity of these structures show big discrepancies between the amount of steel that is needed depending on the old regulations or the new Eurocodes. These discrepancies are shown by typical examples and possible ways to handle the results will be discussed. By looking at advanced shear models and non-linear finite element calculations possible further developments of the shear-limit- state formulation are suggested.</p>
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