Structural damage index identification for historical masonry bridges

摘要

In the paper, based on a cataloguing developed on more than a hundred historical masonry bridges in the Campania Region geographical area, focus is given to the introduction of a synthetic index able to give back a measure of the structural decay of the single construction. The developed archive collection of historical, dimensional, technique and technology data, and crack descriptions through surveys in situ and inspections allow to determine for each case a synthetic index of the overall decay under the structural profile (both referred to the material and the structure) and give a concise measurement of the conservation state about the analysed bridges.