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Section 5
5-247
5.32.1 Joint Load Specification
Purpose
This set of commands may be used to specify JOINT loads on the
structure. For dynamic mass modeling see sections 5.32 and 1.18.3.
General format:
JOI
NT LOAD
*
⎧FX f
1
⎫
⎪FY f
2
⎪
joint-list
⎨FZ f
3
⎬
⎪MX f
4
⎪
⎪MY f⎪
5
⎩
MZ f
6
⎭
FX, FY and FZ specify a force in the corresponding global
direction (even at inclined support joints).
MX, MY and MZ specify a moment in the corresponding global
direction.
f
1
, f
2
... f
6
are the values of the loads.
See Section
1.16.1
Example
JOINT LOAD
3 TO 7 9 11 FY -17.2 MZ 180.0
5 8 FX 15.1
12 MX 180.0 FZ 6.3
Notes
• Joint numbers may be repeated where loads are meant to be
additive in the joint.
• UNIT command may be on lines in between joint-list lines.
• If moments are for dynamic mass, then the units are assumed
to be force-length
2
.