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STAAD Commands and Input Instructions
Section 5
5-178
7.0 9.07.0
80
6.5
90
50
100
Figure 5.21
Several load systems may be repeated within the same file.
The STAAD moving load generator assumes:
1) All positive loads are acting in the negative global vertical (Y
or Z) direction. The user is advised to set up the structure
model accordingly.
2) Resultant direction of movement is determined from the X and
Z (or Y if Z is up) increments of movements as provided by
the user.
Reference Load
The first specified concentrated load in the moving load system is
designated as the reference load. While generating subsequent
primary load cases, the initial position of the load system and the
direction of movement are defined with respect to the reference
load location. Also, when selecting the reference load location
with a positive value of Width specified, the following two views
define the reference load location.