Realistic Vulnerability and Displacement Functions for Masonry Structures Derived from Damaging Earthquakes in Central Europe

Abstract eng:
Numerical studies of the earthquake behavior of masonry buildings in Central Europe based on national building codes acc. to the Eurocode 8 lead to pessimistic damage prognoses, which are in contradiction to the observed behavior. In order to eliminate this discrepancy realistic experience-based vulnerability and displacement functions for typical masonry constructions are developed. Because of the rather limited number of earthquake damage observations, the Magnitude ML 5.7 Albstadt earthquake from September 3, 1978 (intensity VII–VIII) in South Germany also based on its excellent documentation is reconstructed with the building stock existing at that time. The prevailing building types and for these the characteristic damage cases are investigated in close cooperation with the local authorities. The vulnerability of the building types is determined. Vulnerability curves as a function of damage degrees and seismic intensity as well as capacity curves are presented; the effect of local site conditions is considered.

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