structure pile history command
Syntax
- structure pile history <name s > keyword
Primary keywords:
coupling-displacement-normal coupling-stress-normal coupling-yield-normal coupling-displacement-shear coupling-stress-shear coupling-yield-shear force force-x force-y force-z ipstress moment moment-x moment-y moment-z
Sample pile responses. Quantities for sampling include force and moment at one end of the pile, axial stress for elements with a plastic material model and displacement, stress, and yield state in both the normal and shear coupling springs. The force and moment are expressed using the force-moment sign convention.
If the optional name keyword is used, then the history can be assigned a name for later reference. If not used, then the history will be assigned a default name based on the internally assigned ID number. The element to be sampled must be identified by either component ID (component-id i) or by position (position v). If position v is used, then the element nearest to v is taken.
- coupling-displacement-normal [pilehistoryblock]
displacement in the normal direction coupling spring at end of the element. Sign convention for normal spring is+/-, indicating separation/overlap.
- coupling-stress-normal [pilehistoryblock]
stress in the normal direction coupling spring at end of the element. Sign convention for normal spring is +/-, indicating separation/ overlap.
- coupling-yield-normal [pilehistoryblock]
yield state in the normal direction coupling spring at end of the element. Value {0, 1, 2} denotes never yielded, yielding now, or yielded in past, respectively.
- coupling-displacement-shear [pilehistoryblock]
displacement in the shear direction coupling spring at end of the element. Sign convention for shear spring is +/- with respect to average axial direction of pile.
- coupling-stress-shear [pilehistoryblock]
stress in the shear direction coupling spring at end of the element. Sign convention for shear spring is +/- with respect to average axial direction of pile.
- coupling-yield-shear [pilehistoryblock]
yield state in the shear coupling spring at end of the element. Value {0, 1, 2} denotes never yielded, yielding now, or yielded in past, respectively.
- force [pilehistoryblock]
force magnitude
- force-x [pilehistoryblock]
force (\(x\)-component, force-moment sign convention)
- force-y [pilehistoryblock]
force (\(y\)-component, force-moment sign convention)
- force-z [pilehistoryblock]
force (\(z\)-component, force-moment sign convention)
- ipstress [pilehistoryblock]
axial stress (\(\sigma_{xx}\)) for an element with a plastic material model. Uses the integration-point keyword.
- moment [pilehistoryblock]
moment magnitude
- moment-x [pilehistoryblock]
moment (\(x\)-component, force-moment sign convention)
- moment-y [pilehistoryblock]
moment (\(y\)-component, force-moment sign convention)
- moment-z [pilehistoryblock]
moment (\(z\)-component, force-moment sign convention)
structure pile history Keyword Block
Either the cid keyword or the position keyword must be supplied. The end keyword is optional. coupling-displacement-normal, coupling-displacement-shear, coupling-stress-normal, coupling-stress-shear, coupling-yield-normal, coupling-yield-shear, force, force-x, force-y, force-z, ipstress, moment, moment-x, moment-y and moment-z.
- component-id i
the particular element is identified by the CID number. If this keyword is used, position should not be used.
- end i
the quantity will be sampled at end i (where i is 1 or 2), which corresponds with the order in the nodal-connectivity list. The history is sampled at end 1 (the default) if this keyword is not supplied.
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