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User guide

3.2.15 Husid (Arias intensity) plot

As for other functions, this button has two behaviours

depending on whether single or multiple time-histories have

been selected. The windows produced can be saved in different

graphical formats (.bmp, .eps, .jpg, .png or .tif) using the

‘Save figure’ option on the ‘File’ menu and printed using the

‘Print figure’ option the ‘File’ menu. Also the values plotted can

be saved in a column format using the ‘Export data’ option on

the ‘File’ menu. The options used to create the figure can be

changed within the ‘Options’ menu located at the top of the

window.

The Arias intensities are displayed using units based on the

selected acceleration unit.

Single time-history selected

Clicking on this button will calculate and display the Husid plot

(i.e. Arias intensity against time) of the currently selected time-

history (see below). The left hand axis gives the Arias intensity

and the right hand side gives the percentage of Arias intensity.

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Guralp-systems ART Manual do Utilizador Página 39