Response modification factor (R factor) is one of the seismic design parameters to be considered in evaluating the performance of buildings during strong motions. This paper has tried to evaluate the response modification factor of concrete coupled shear wall structures with various length/depth ratios of spandrel beams. The effect of diagonal reinforcement of spandrel beam was also evaluated o...

The purpose of optimizing isolator parameters is to have a system that is stiff at low frequency but soft in high frequency. However, in this case a small amount of transmitted force will cause a large displacement in isolator. Exceeding the allowable relative displacement may cause serious damage to the system. Therefore a trade off between the transmitted force, which is indicated by absolute...

Abstract The Kirchhoff model is derived from the vibration problem of stretchable strings. This article focuses on long-time dynamics a class higher-order coupled systems with nonlinear strong damping. existence and uniqueness solutions these equations in different spaces are proved by prior estimation Faedo-Galerkin method. Subsequently, family global attractors problems using compactness theo...