ABSTRACT: Shear wall is commonly employed as a principal element to resist lateral loads due to wind or earthquake forces. An accurate model for a shear wall system needs to consider the effect of all components for analyses i.e. shear wall, foundation, and subsoil. This investigation presents the modeling of a shear wall structure foundation and soil system using the super element, finite and ...

(ABSTRACT) Wind speed data of multi-heights have been examined to investigate the spatial and temporal characteristics of coherent structures in the near neutral marine atmospheric surface layer. With Taylor's hypothesis, the temporal velocity signals have been transformed to spatial fluctuations and then visualize these spatial velocity fluctuations to identify the coherent structures. It has ...

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Offshore wind turbine (OWT) foundations are subjected to a combination of cyclic and dynamic loading arising from wind, wave, rotor and blade shadowing. Under cyclic loading, most soils change their characteristics including stiffness, which may cause the system natural frequency to approach the loading frequency and lead to unplanned resonance and system damage or even collapse. To investigate...

The authors present a unique, scale-discriminating study of the environment-relative circulations within a mesoscale convective system (MCS) and mesoscale convective vortex (MCV). The MCS, a leading convective line and trailing stratiform region that became asymmetric, passed through the National Oceanic and Atmospheric Administration (NOAA) Profiler Network (NPN) in Kansas and Oklahoma on 1 Au...

[1] Wave-generated shear stresses are the main mechanism responsible for sediment erosion on tidal flats and regulate both sediment concentrations in the water column and, together with tidal currents, sediment export to salt marshes and to the ocean. We present herein a simple method to estimate sediment erosion potential in shallow tidal basins caused by wind wave events. The method determine...

The large-scale features favoring tropical cyclogenesis and development are low vertical wind shear, below normal sea-level pressure and abnormally warm ocean temperatures. High wind shear is thought to inhibit development by preventing cumulonimbus condensation from collecting into a distinct heat source at the core of a disturbance. Also, it shears the initially delicate pattern of circulatio...