In the context of nonlinear finite element (FE) method, this paper presents a computational framework for ‘exact’ response sensitivity analysis of soil-structural interaction (SSI) systems based on the direct differentiation method (DDM). The DDM requires analytically differentiating the FE algorithm for the response computation with respect to material, geometry or loading parameters, involvin...

This study proposed a procedure of using the energy method to evaluate SSI-related damping effect when soil–structure interaction (SSI) was considered in bridge pier system, which can thus be deemed soil–foundation–superstructure (SFS) inelastic system. Firstly, SSI is implemented by adopting discrete-time recursive filter approach as well frequency-dependent foundation–soil impedance functions...

Tuned mass dampers (TMDs) are widely implemented in many types of structures, such as tall buildings, wind turbines, towers, and bridges, to enhance the structural performance subjected seismic loading. In present study, we aim comprehensively investigate effectiveness TMD, by performing vulnerability assessment a 20-story steel building equipped with TMD considering soil-structure interaction ...

In typical dynamic soil-structure interaction (SSI) problems, the response a structure can be affected by existence of some nearby structures, which is sometimes referred to as structure-soil-structure (SSSI). This effect especially important in earthquake engineering design adjacent nuclear power plants, safety risk relatively high. However, current understanding on SSSI plants still insuffici...

In common buildings the soil-structure-interaction (SSI) is governed by the elastic behavior of the building. The best conditions to see the soil effect predominate would be a dynamic rigid body movement of a massive building. For this reason measurements were carried out on an old anti-aircraft tower from World War II on typical Viennese soil conditions. The dynamic properties of the soil coul...

This study aims to investigate the impact of soil-structure interaction (SSI) on seismic behavior reinforced concrete buildings. An advanced numerical model for SSI was developed and verified using ABAQUS software. The response a 12-story building four types soil (rock, dense soil, stiff soft soil) examined Normalized Response Spectra based Moroccan paraseismic regulation RPS 2011. global later...

The aim of this paper is to study the effects of Soil-Structure Interaction (SSI) on the seismic response of coupled wall-frame structures on pile foundations considering the non-linear behaviour of the superstructure. According to the substructure method, the kinematic interaction analysis is performed by means of a numerical procedure obtaining the dynamic impedance functions and the foundati...

In this paper, the influence of soil-structure interaction (SSI) on a torsionally coupled turbo-generator (TG) machine foundation is studied under earthquake ground motions. The beneficial effects base isolators in TG motions are also duly, considering SSI. A typical analyzed using three-dimensional finite element (FE) model. Two superstructure eccentricity ratios considered to represent torsio...

The rock composition of karst area is mainly limestone, which easy to be eroded and dissolved by water, forming a complex fragile tectonics. Under the action earthquake, instability stratum aggravated. mid story isolation structure new type developed from basic structure, irregular buildings are highly susceptible adverse seismic conditions. Previous studies have mostly adopted assumption rigid...