Seismic analysis using three dimensional modeling

Abstract EN

Three-dimensional dynamic analysis is required for a large number of different types of structural systems that are constructed in Seismic Zones.

The lateral force requirements suggest several methods that can be used to estimate the distribution of seismic forces within a structure.

However, these guidelines are not unique and need further interpretations.

The major advantage of using the forces obtained from a dynamic analysis as the basis for a structural design is that the vertical distribution of forces may significantly be different from the forces obtained from an equivalent static load analysis.