# structure pile apply

Syntax

structure pile apply keyword <range>

Applies conditions to pile elements in the range. The following keywords and options are available:

f1 f2

assign uniform applied distributed loads. Loads (force per unit length) are applied to all elements in the range. Positive loads act in the positive $$y$$- or $$z$$-directions (f1 and f2, respectively) of the element system and maintain this orientation during large-strain motion. Point loads are applied at the nodes using the command structure node apply .

tension keyword

assign a specific axial tension value in the pile element that will be maintained during cycling. Incomplete sentence follows: This is intended as a way to pre-tension piles, but applying the pre-tension force as a tension to the end pile element(s), that are generally ungrouted. [DR: why is this flagged?] Note that this setting will override the normal force-displacement law in axial direction for the pile element as long as it is active. Removing the condition will not remove the force, but from then on, the pile element axial forces will evolve naturally.

The following keywords are available:

active b

make the tensile apply condition active or inactive. If active, the last specified value of tension is used, which is 0.0 by default.

value f

set the axial tensile force applied to the element f. This makes the condition active automatically.