Abstract: Near-field earthquake ground motions may contain distinctive coherent velocity pulses. Strong ground motions with such large velocity pulses can be damaging to structures located within the near-field region. A class of ...

Abstract: This paper deals with the combined use of a low-damping base-isolation system and a semiactive control system referred to as a tuned interaction damper (TI damper). The TI damper generates friction-type forces (rigid-plastic ...

Abstract: A new methodology for calculating equivalent linear parameters for use in predicting the earthquake response of structures is presented. The methodology is applied to single-degree-of-freedom inelastic structural models ...

Abstract: This paper presents a new analytical approach for simple and explicit computation of the seismic base shear demand of structural systems that can be idealized by a uniform shear-beam model. The approach is based on a Green’s ...

Abstract: This paper presents an approach for analyzing nonlinear systems with parameter uncertainty subjected to stochastic excitation. The uncertain parameters are modeled as time-independent random variables. A general solution ...

Abstract: A simplified and economical procedure is developed to analyze the dynamic behavior of short‐length gravity dams. The analysis is based on the Rayleigh‐Ritz method and an idealized dam‐reservoir geometry. The substructure ...

Abstract: Analytical expressions are derived for the hydrodynamic pressures generated in reservoirs behind short‐length gravity dams, and resulting from vibrational motions of the dam and ground motions. The dams have vertical ...

Abstract: An analytical‐empirical model for the vortex‐induced oscillation of cylindrical structural elements in Water is presented. The model is based upon force measurements for forced cylinders in a uniform aqueous flow. The ...

Abstract: A computational algorithm based upon a strain‐space formulation of plasticity is tested for accuracy in the case of perfect plasticity. A new strategy for updating the position of the relaxation surface is presented and ...