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Fig. 4 | Geothermal Energy

Fig. 4

From: Toward performance-driven seismic risk monitoring for geothermal platforms: development of ad hoc fragility curves

Fig. 4

Equivalent single-degree-of-freedom (ESDOF) representation of typical box-shape unreinforced masonry (URM) building under earthquake-induced loading taking into account typical deformation components in the fundamental mode shape [Δ sh : horizontal displacement due to shear deformation, Δ fl : horizonal displacement due to flexural deformation, Δ open : horizontal displacement contribution of masonry wall openings, Δ in.pl : in-plane horizontal masonry wall displacement (consists of Δ sh , Δ fl , Δ open ), Δ out.pl : out-of-plane horizontal masonry wall displacement due to out-of-plane bending, M: ESDOF generalized mass, K: ESDOF generalized stiffness]

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