2 docs tagged with "masses"

A node with a mass property concentrates mass and inertia at a single point. In a static analysis (linear or nonlinear), the only effect of a mass is to give a loading based on m × g when gravity loads are applied to the structure. In a dynamic analysis both mass and inertia are used in the construction of the mass matrix

In seismic analysis there is often a need to extract mass and (torsional) inertia data for each storey of a structure. This option looks at the structure, storey by storey, summing the mass and Izz inertia across all the nodes in that storey. The results are output to a csv file which can be opened in Excel.