Seismic action¶

The seismic action is taken into account in the calculation through the Mononobe & Okabe theory. At the input level, the user must enter the horizontal and vertical earthquake factors:

kh

Horizontal earthquake factor

kv

Vertical earthquake factor

xp/h

The ratio of the of the application point height of the seismic increase to the wall thrust height. This value is generally assumed as corresponding to 2/3.