Displacement-Based Earthquake Loss Assessment of Turkish Masonry Structures

Abstract eng:
Masonry structures constitute a high percentage of the European building stock. However, the inherent variability of the material properties and other epistemic uncertainties of existing masonry buildings render the assessment of both single buildings and classes of buildings rather more complicated, as compared to their reinforced concrete counterparts. Nonlinear techniques for the assessment of masonry structures are still under development. A simplified nonlinear method (DBELA) is described herein that defines the vulnerability of a masonry building class by relating its deformation potential at different limit states and comparing this with the displacement demand from an over-damped displacement response spectrum at the period of vibration of the structure. In order to calibrate the methodology, nonlinear static and dynamic analyses of masonry structures have been run to obtain the displacement limits and fundamental periods of different types of masonry structures of varying heights. Experimental test results on Turkish masonry walls have also been collected in order to further calibrate the methodology.

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