Stories and story-telling are a cultural achievement of significant relevance, even in modern times. Since ancient times stories have served to entertain and teach mankind to “transmit” knowledge from generation to generation. Story-telling ranges from simple aural narrations to traditional inter-generational discourse and, in modern times, workflow-oriented organizational learning. Web-based s...

Seismic isolation is generally considered an effective earthquake protection strategy. As application of seismic increases, decisions on the use one particular isolator versus another increasingly depend computed responses with complex analytical models. Accordingly, validation models to predict primary (structural) and secondary system (non-structural component) response in seismically isolate...

wind regime data from the jask meteorological station from a 20-year statistical period (1985-2005) was analyzedusing the fryberger method to investigate sand drift potential (dp) in this area. the resultant drift potential anddirectional variability of wind were calculated and illustrated. average annual sand dp was estimated to be 460vector units (vu), and the sand flux is 51 m3/m.year. there...

A shaking table experiment conducted on a multi-degrees-of-freedom frame structure equipped with non-conventional tuned mass damper (TMD) is presented. The TMD characterized by high ratio, without adding further structural masses, and realized via inter-story isolation. top story of four-story steel isolated converted into mass, connecting to the substructure two damping rubber bearings placed ...

In this paper, the effects of horizontal stress and dimensions of barrier pillars on the stability of drifts hr been investigated. An elastoplastic hybrid finite/boundary element program has been used. A plastic analysis of stresses in barrier pillars above the drifts in one of the underground coal mines with inclined seams is examined. Computed stresses and safety factor controur lines around ...

Reinforced concrete (RC) frame structures with open first stories and masonry infill walls at the upper are very common in seismic areas. Under strong earthquakes, most of energy dissipation demand imposed by earthquake concentrates story, this eventually leads building to collapse. A efficient cost-effective solution for upgrading type structure consists installing hysteretic dampers story. Th...