It has been a growing trend to use cold-formed steel (CFS) sections as primary structural members in low multi-story buildings due their high strength-to-weight ratios, ease of construction and flexibility manufacturing variety cross-sectional shapes. However, CFS frames are not widely used seismic regions; one important reason is that the less redundant joints generally have ductility energy d...

In classical electromagnetic theory, one formally defines the complex dipole moment (the electric plus ’i’ magnetic dipole) and then computes (and defines) the complex center of charge by transforming to a complex frame where the complex dipole moment vanishes. Analogously in asymptotically flat space-times it has been shown that one can determine the complex center of mass by transforming the ...

A novel theoretical model is presented maintaining that consciousness evolved on the basis of time distinctions. Various models of time pertain to the existence of future, present and past. It is proposed that the future represents potentialities, the present the actualization of certain potentialities, and the past a record of actualized potentialities. Actualization of potentialities derives ...

This work represents an effort to develop one plausible realization of the effects of the scenario event on tall steel moment-frame buildings. We have used the simulated ground motions with three-dimensional nonlinear finite element models of three buildings in the 20-story class to simulate structural responses at 784 analysis sites spaced at approximately 4 km throughout the San Fernando Vall...