Vibrations of non-linear asymmetric buildings on a flexible foundation

Abstract

The dynamic response of inelastic asymmetric shear buildings supported on a linear elastic half-space is investigated for sinusoidal excitation. The resisting elements of the building are assumed to be bilinear hysteretic. The influence of non-dimensional system parameters on the lateral and torsional response spectra, as well as the peak ductility of the resisting elements, are determined. It is found that for tall linear and non-linear structures as well as short non-linear structures the response increases as the soil becomes more flexible. It is also observed that the flexible soil has a profound effect on the peak ductility of the element further away from the centre of stiffness. © 1991.