Abstracts Archive

Pile foundations are commonly used to support the superstructures of bridges, buildings and heavy industrial plants. The determination of pile stiffness and damping is an important step in the analysis of the soil-structure-interaction of pile-supported structures subjected to dynamic loading due to...

Dynamic soil-structure interaction studies are widely used in geotechnical earthquake engineering to evaluate structural capacity and component’ safety requirements under seismic loading. Given the uncertainties and physical complexity of the seismic excitation and soil domain, as well as computat...

In the seismic design of building structures, the natural period and damping ratio are important parameters that greatly affect the response of the building. However, most of the seismic observation data for actual buildings are affected by the dynamic soil structure interactions (SSIs). Therefore, ...

The tests of resistance to dynamic impact with shaped charge (ŁK) were carried out on a homogeneous armor plate made of ARMOX 370T Class 1 steel, used as a standard in the production of ballistic shields. shock loads. The chemical composition of the steel was determined in spectrometric tests using...

The Material Point method is a suitable numerical method to simulate large deformations that often occur in geotechnical engineering. The Double-Point MPM (2P-MPM) extends the simulations for water-saturated materials. In the present work, a coupled dynamic formulation is used to account for coupled...

Trains will generate vibrations in the ground that will propagate to the buildings and radiated noise inside lodgings. Less known is the fact that the free surface will act as an infinite baffle radiating noise. This contribution is here studied. In order to quantify this effect, an existing 2.5D FE...

From the literature as well as from relevant standards, recommendations for the numerical modelling of soil-structure interaction problems involving seismic actions are well known, e.g. ASCE/SEI 4-16. For human-induced excitations very little specific guidance has been published in the past. However...

Dynamic soil-structure interaction (SSI) should be considered when modeling railway bridges on soft soil, as it results in (1) more accurate prediction of the bridge response, and hence, a safer and possibly more cost-effective design; (2) better estimation of the modal characteristics; and (3) impr...

The fast and practical computation of dynamic stiffness of foundations in layered media is a very important task to evaluate the dynamic response of critical structures. In particular, the design of wind turbines in offshore regions are very sensitive to the stiffness and damping characteristics of ...

This paper proposes a new efficient three-dimensional building-soil model for predicting low-amplitude ground-borne vibration in building with piled foundations. The model employs the singular boundary method to compute the soil reaction. The soil is strongly coupled with the piled foundation, model...

Modelling of soil-structure interaction (SSI) problem has always been a challenging topic for structural engineers. In the last half-century, several simplified modelling techniques have been proposed to consider SSI by idealizing the soil domain. The behavior of these models are different in terms ...

Title: Identification of a Coupled Ground-Building Seismic Response Analysis Model Based on Measured Data In recent years, unexpected large earthquakes have caused much damage, and it has become very important to know the vibration characteristics of buildings. In particular, medium- and low-rise bu...

In most civil engineering applications, the seismic Soil Structure Interaction (SSI) is assessed by performing blind numerical analyses with no detailed verification of the accordance between numerical results and in situ observations of SSI. The most widespread way to account for dynamic SSI is to ...

Periodic wave propagation in a Euler-Bernoulli beam resting on a bilinear elastic foundation has been subject of recent analytical investigations. To realistically model embedding media with different reactions in compression and tensile conditions, different stiffnesses of the foundation for positi...

The paper explores the role of nonlinear interfaces in the response of a typical reactor building in a nuclear power plant (NPP). A detailed finite element model of the reactor building-soil system is created using the Real-ESSI Simulator―a finite element software capable of modelling realisticall...

Presently, over 80% of the offshore wind turbines in Europe are founded on monopiles. These large tubular substructures are commonly installed via impact hammer. During impact piling, a hammer is mounted on the pile top and the applied pulses progressively drive the pile into the seabed. Notwithstan...

The design of structures to seismic excitation in which soil-structure interaction (SSI) is not considered with enough detail can lead to overdesigned solutions and, in the case of large structures, lead to significant increases in the overall budget of the project. For such large structures, spendi...

Sedimentary materials enclosed in basins complexify the ground motion by energy trapping, resonance and surface wave generation at the basin edge. In general, effects of basin presence are estimated by aggravation or adjustment factors (AGF). The present study evaluates the influence of basin effect...

Past earthquakes and contemporary research reveal that dynamic soil-structure interaction (SSI) could significantly alter the structural response of a building during an earthquake. These effects are functions of several parameters, including structural system, foundation type and geotechnical chara...

The Wave Based Method (WBM) is an indirect Trefftz Method, which uses weighted wave functions to approximate the field response of a boundary value problem. These wave functions weakly fulfill the underlying differential equations and pass through a weighted residual approach by applying boundary co...

This study presents a semi-analytical solution for the 3D problem of a cylindrical tunnel embedded in an elastic half-space subject to plane harmonic compressional and shear waves. Both the tunnel and soil are modelled as an elastic continuum. Conformal mapping is employed to transform the original ...

The shock wave resulting from the explosion process is the main burden on the technical infrastructure facilities or people in contact with the epicenter of the explosive explosion (MW). The article presents the tests of EN C45 steel pipe of 10 mm thickness buried beneath the earth as a result of th...

The reinforcement technique with rigid inclusions is a practical, economical, and time-saving foundation solution. This technique has been already utilised with success to support structures undergoing high seismic demands, e.g., the Rion-Antirion bridge in Greece. In a performance-based design appr...

In the near future, geothermal energy is bound to play a critical role in the transition to sustainable energy sources. Micro-earthquakes may be induced by the underground operations performed at the geothermal power plants. In most cases, these vibrations are considered a general nuisance similar t...