The paper investigates the long-term seismic behaviour of an underground reinforced concrete (RC) metro tunnel in Santiago, Chile, considering combined effects chloride-induced corrosion and cumulative, low-amplitude shaking on structure's performance. soil-tunnel response is evaluated with aid transient, nonlinear finite element analysis using a two-dimensional (2D) plane strain numerical mode...

Construction sites are not generally flat but heterogeneous. It would be of significance to explore the patterns ground response where soil and rock strata laterally distribute near surface. Shaking table test scaled free-field model is conducted investigate local site effect caused by influence soil-rock strata. In this test, with artificial designed reproduce dynamic characteristics prototype...

Abstract The 2008 Wenchuan Ms 8.0 earthquake triggered the Daguangbao (DGB) landslide, of which shear surface belongs to a thrust bedding fault 400 m below carbonate slope. After 1.8 km-long inclined sliding face (0.3 km2) was exposed in south source area. By using shaking table test, contributions landslide have been studied this paper. test model is simplified as weak layer with small elastic...

The present paper aims to improve the dynamical balancing of a slider-crank mechanism. This mechanism has been widely used in internal combustion engines, especially vehicle engines; hence, its dynamical balancing is important significantly. To have a full balance mechanism, the shaking forces and shaking moment of foundations should be eliminated completely. However, this elimination is usuall...

If C is a compact subset of R and H is a halfspace bounded by a hyperplane π, the set C̃ obtained by shaking C on π is defined as the set contained in H, such that for every line ` orthogonal to π, C̃ ∩ ` is a segment of the same length as C ∩ `, and one of its endpoints is on π. It is shown that there exist d + 1 hyperplanes such that every compact set can be reduced to a simplex, via repeated s...

The aim of the present study was to investigate the potential effects of mechanical shaking on the purity, activity, differentiation and possible apoptosis of rat bone marrow mesenchymal stem cells (BMSCs). Based on the whole bone marrow adhesion method, different durations and frequencies of mechanical shaking were used on primary cells. The biomarkers, CD29, CD90, CD45 and CD31, in addition t...

2014 Using a previously introduced Monte Carlo method, due to Rosato, Prinz, Strandburg and Swendsen, we carry out in two dimensions numerical studies of size segregation, a phenomenon which occurs when a granular medium made of particles of different sizes is shaken. We propose a new scaling law relating the segregation velocity 03C5 to the amplitude of shaking A and to the ratio R of the diam...

BACKGROUND To estimate the prevalence of shaking and smothering and to determine risk factors in a population-based sample of mothers with 4-month-old infants in Japan. METHODS We administered a questionnaire to women who participated in a 4-month health checkup program in Aichi Prefecture, Japan (n = 6487; valid response rate, 66.8%), and assessed frequency of shaking and smothering during t...

Probabilistic seismic hazard analysis [PSHA, e.g., Cornell (1968); Anderson and Trifunac (1978); McGuire (1977); McGuire (1995)], typically used in risk assessment and hazard mitigation, has so far relied on ground motion prediction equations (GMPEs), also called attenuation relations [e.g., the next generation attenuation relations or NGA by Campbell and Bozorgnia (2008); Chiou and Youngs (200...

Earthquake early warning systems aim to reduce the potential danger by providing a in seconds before strong ground shaking occurs. In this study, we implemented EPIC, an algorithm for Bursa province and its surroundings, which is seismically active region. We replayed 104 earthquakes of M ≥ 3.5, occurred around study area between 2012 2021. derived period amplitude-based magnitude-scaling relat...