Seismic Design Load Distribution in Steel Frame

Abstract eng:
In this paper, we present the seismic design load distribution. First, the equation of the distribution of seismic load in the design is presented. It is based on the assumption that the velocity spectrum of ground motion is independent of the natural period, and it is deduced from the maximum shear response of the elastic shear bar with both uniform stiffness and mass distributions. Then, two equations were selected from the equations with respect to the seismic design load distributions that have already been proposed in Japan. A comparison of these equations was carried out with regard to both leveling of the story drift angle distribution and minimization of the maximum story drift angle in all the stories of a multistory frame.

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