Showing papers in "Soil Dynamics and Earthquake Engineering in 2017"

TL;DR: In this paper, a simplified way of carrying out the design of monopiles based on necessary data (i.e. the least amount of data), namely site characteristics (wind speed at reference height, wind turbulence intensity, water depth, wave height and wave period), turbine characteristics (rated power, rated wind speed, rotor diameter, cut-in and cut-out speed, mass of the rotor-nacelle-assembly) and ground profile (soil stiffness variation with depth and soil stiffness at one diameter depth).

TL;DR: A novel solution to the complex problem of earthquake prediction is provided through adroit integration of a machine learning classification algorithm and the robust neural dynamics optimization algorithm of Adeli and Park.

TL;DR: In this article, a simplified procedure is developed based on the results of these analyses to estimate the shear-induced component of liquefaction building settlement, which can be used to evaluate building performance at liquefiable sites.

TL;DR: In this paper, a modified methodology of evaluating the dynamic properties of saturated sands based on the actual Asymmetrical Hysteresis Loop (ASHL) was adopted, for a peak shear strain range of 0015-45% at 1 Hz loading frequency, on test specimens prepared at different relative density (30-90%) and confining stress (50-150 kPa).

TL;DR: In this article, a series of 1-g shaking table tests were conducted on 0.9-m high reinforced-soil wall models with different strip lengths and it was found that the deformation mode of walls highly depends on the length of strips.

TL;DR: In this article, the authors proposed an optimization approach for optimum design of tuned mass dampers implemented to seismic structures considering soil-structure interaction (SSI), and two metaheuristic algorithms such as harmony search algorithm and bat algorithm were employed.

TL;DR: In this paper, a fiber-based modeling approach that captures degradation in reinforced concrete and reinforcing steel materials is used to derive fragility curves for three reinforced concrete (reinforced concrete) buildings with different number of stories under multiple earthquakes.

TL;DR: In this article, the authors used a robust finite element model to simulate the degrading behavior of reinforced concrete structures subjected to as-recorded seismic sequences and evaluated the nonlinear response of two eight-story reinforced concrete buildings (both regular and irregular in height).

TL;DR: In this paper, a numerical approach for the construction of seismic fragility curves for shallow metro tunnels considering the soil-structure-interaction (SSI) and the aging effects due to corrosion of the lining reinforcement is presented.

TL;DR: In this article, a systematic experimental investigation into the undrained cyclic behavior of saturated loose sand with the static shear under both triaxial compression and extension conditions was performed.

TL;DR: In this article, the application of tire derived aggregate (TDA) mixed with ballast material as an approach for enhancing the ballasted track performance in the presence of sand fouling is discussed.

TL;DR: In this article, a 3D finite element (FE) study is conducted to capture the 3D effects involved in the seismic performance of pile-supported wharves, including the pile-to-pile interaction mechanisms as dictated by the behavior of the surrounding soil.

TL;DR: In this paper, the authors present a concise literature review of parameters influencing the soil small-strain shear modulus (G0) in detail, and a particle shape analysis is performed.

TL;DR: In this paper, limit equilibrium method is used for rotational stability analysis of gravity retaining wall on rigid foundation supporting dry cohesionless backfill with modified pseudo-dynamic seismic forces.

TL;DR: In this article, an analytical formulation in the framework of classical elastodynamics is derived for the scattering of oblique incident plane SH waves by a semi-cylindrical canyon covered by a local inhomogeneous soil layer with a radially-varying modulus.

TL;DR: In this article, the small-strain dynamic properties of silty sand with particular emphasis on the effect of non-plastic fines content on the smallstrain shear modulus (G max ) and material damping (D s, min ).

TL;DR: In this article, the effect of viscous dampers on a base-isolated 16-storey reinforced concrete (RC) framed structure with friction pendulum bearings (FPBs) through shaking table tests and numerical simulations was investigated.

TL;DR: In this work, the PCA has been used to transform the original dataset into a new dataset of uncorrelated variables and compared to Logistic Regression, Bayes and Fisher classifiers, which classify microseismic events and quarry blasts.

TL;DR: In this article, the authors considered the simulation of fling-step motions under the assumption that a flingstep accelerogram can be decomposed into a pulse component and a component without any pulse, and the amplitude and duration parameters were estimated for an anticipated motion in terms of the closest distance of site from the fault for a given magnitude and faulting mechanism.

TL;DR: In this paper, the effect of topographic irregularities on the ground motion and local site response is quantified by means of parametric investigations in the frequency-domain of typical two-dimensional features.

TL;DR: In this paper, in-situ HST generated ground vibrations were measured in the embankment, culvert, viaduct and transition sections of Beijing-Shanghai high speed railway (HSR) in China.

TL;DR: In this paper, the performance of 3-story structures with shallow foundations on a saturated soil profile including a thin liquefiable layer was evaluated using ground densification, enhanced drainage with prefabricated vertical drains (PVDs), and reinforcement with in-ground structural walls.

TL;DR: In this paper, cyclic loading tests of six reinforced concrete circular bridge piers with different levels of corrosion are carried out to investigate the seismic performance of such types of structures and validate the proposed method.

TL;DR: In this article, a multi-scale physical model for shield tunnels is proposed to simulate the test model of shield tunnels, which discretizes the entire model structure into the segmental equivalent ring portion (SER) and the equivalent uniform tube portion (EUT).

TL;DR: In this paper, a comparative study is conducted for the responses of soil-tunnel systems to moving train loads using the 2D and 2.5D finite/infinite element approaches, considering the effects of train speed, rail roughness and floating slab.

TL;DR: In this paper, a hybrid experimental-numerical approach was proposed to predict ground-borne vibration levels in the presence of a variety of railroad artefacts such as transition zones, switches, crossings and rail joints on existing networks.

TL;DR: In this paper, the influence of non-plastic fines on pore water pressure generation and undrained cyclic shear strength of sand-silt mixtures was investigated.

TL;DR: In this article, the predictive capability of nine spectral intensity measures, among the most commonly used in the literature, is investigated with reference to three EDPs evaluated for base-isolated structures subjected to near-fault earthquakes, which can be characterized by pulse-type motions in the horizontal direction and significant vertical component.

TL;DR: In this article, the problem of nonlinear response of moment resisting frames on nonlinear soft soils is investigated using the direct method, where the nonlinear behavior of the frame elements of structure is assumed to be concentrated at plastic hinges at the ends of members.

TL;DR: In this article, a stochastic seismic response of a slope under random earthquake ground motion is analyzed using probability density evolution method (PDEM) and dynamic reliability evaluation of slope stability.