The “Initial Sway via Table” imperfection type provides the option of defining floor areas and specifying a sway for each of them.
Define the floor areas by entering the ordinates in the “Initial Sway via Table” tab of the table. You can insert a new row using the
button at the bottom of the table and the
button above the currently selected row.
Furthermore, you can select whether an inclination is to be applied for the x-direction, y-direction, or for both directions. The “Level direction” specifies the ordinate of the stories. This means that vertically directed initial sways are also possible. In the table, the inclination is displayed as a reciprocal of 1 or alternatively as a decimal number.
Calculation of Imperfection Case
After calculating the imperfection case, you obtain the result of the deformation that is applied as an imperfection. This type of imperfection is taken into account in the calculation using a displacement of the FE elements.