STAAD.Pro Help

P. To open the Earthquake workflow

You must perform an analysis on a model with a load cases including an EC8 response spectrum load.
  1. Perform a successful analysis.
  2. Select Earthquake in the Workflows panel.

    The EC8 Stiffness page opens along with the Floors dialog, Storey Stiffness table, and Soft Storeys table.
Tip: You can nominally use the pages in the Earthquake workflow in any order. However, it is recommended that you work through the checks in a left-to-right order (i.e., EC8 Stiffness, EC8 Plans, and then EC8 Elevations).