Allowing structures to rock during an earthquake can effectively provide base isolation at a relatively small cost. Rocking limits the shear demand and provides self-centering, but rocking response depends on energy dissipation caused by interaction with soil impacts re-centering. This paper addresses computational modeling of buildings that have either been designed beneath their foundation (f...

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...

Free vibration analysis is carried out on axially inhomogeneous beams resting Winkler-Pasternak elastic foundation. The material properties of the beam like Young’s modulus, modulus rigidity and density are considered to be varying along length direction following constant, linear exponential models. subjected different combinations clamped simply supported boundary conditions. formulation base...

Piers were important structural members between superstructure and foundation of bridge which designed to transfer resist the vertical loads horizontal (dead load structure, traffic loads, water pressure, ice, wind) foundation. The objective this study was evaluate effect number piers in transverse direction (horizontal distance or spacing) on static dynamic responses for two types bridges stru...

This paper describes an analytical approach to conduct analysis of beam-column elements with generalized end-boundary conditions on a homogeneous or non-homogeneous Pasternak elastic foundation. The mathematical formulation utilized herein is that presented by the senior author in recent work. differential equation (DE) governing behavior element solved using transformation method (DTM). DTM of...

in this paper, evaluation of torsional stiffness in beam and slab bridge deck elements is presented. a beam and slab bridge decks structurally behave as a grillage. a grillage has an efficient transverse load distribution due to transverse asymmetric load. in the case of bridge deck without transverse beams in the span, transverse load distribution depends on the torsional stiffness of longitud...

This article presents a study of the factors that influence mechanism soil-structure interaction with pilot building having concrete walls and their impact on performance. To illustrate studies carried out, numerical modeling four-floor wall was performed, subjected to vertical actions, supported by slab-on-ground foundation, using Finite Element Method (FEM), together specific 3D software for ...

This paper proposes a modified tangential contact stiffness model considering friction’s effect, which is the first key step to establish dynamic of fixture-workpiece system, and this foundation vibration suppression for manufacturing process aerospace blades. According Love’s elastic deformation, model’s derivation starts with potential function in each coordinate axis’s direction respectively...

The use of wind turbines to generate electricity has increased in recent years. One of the most important parts of a wind turbine is the foundation, which should be designed accurately because it is influenced by difference forces. Soil cannot carry tension stress; thus, when a wind turbine foundation is applied eccentricity forces, a gap appears between the soil and foundation. The gap will ha...