This report investigates the issue of selecting and scaling ground motions as input excitations for response history analyses of buildings in performance-based earthquake engineering. Many ground motion selection and modification (GMSM) procedures have been developed to select ground motions for a wide variety of objectives. This report focuses on the selection and scaling of single, horizontal...

Inflationary deformation and very long period (VLP) earthquakes frequently accompany basaltic caldera collapses, yet current interpretations do not reflect physically consistent mechanisms. We present a lumped parameter model accounting for block/magma momentum change, magma chamber pressurization, ring fault (assumed vertical) shear stress drop. Pressurization of the underlying is represented ...

This study aims to analytically implement base isolation with soil–structure interaction (SSI) on a sample structure and develop very simple solution add these combined effects into the mass, damping stiffness matrices of structure. A spectrum analysis is also carried out considering base-isolated structures SSI. Dynamic simulations are performed throughout study. In simulations, three shear fr...

This paper aimed to determine the effects of a pulse signal near-fault ground motion on dynamic response gravity dams, including dam-reservoir-foundation interaction, using different reservoir modelling approaches such as Westergaard, Lagrange, and Euler. As case study, Sarıyar concrete dam located Sakarya River, 120 km northeast Ankara, was considered for investigating ground-motion responses....