Abstract: An idea of passive base isolation of buildings is explored, using inclined rubber base isolators or inclined “soft” first-story columns. Such a system behaves as a physical pendulum, “pivoted” above center of mass, and is ...

Abstract: A nonuniform Timoshenko beam model of a building, with piecewise constant properties along the height, is presented, along with an algorithm for structural system identification from earthquake records. The model accounts ...

Abstract: An exact analytical solution, in terms of Bessel functions, was derived for the dynamic response of a shear beam with uniform cross section and mass density, and shear modulus that varies exponentially in the axial direction. ...