Filter
Top Products
STAAD Commands and Input Instructions
Section 5
5-398
5.47.4 Member Selection by Optimization
Purpose
This command performs member selection using an optimization
technique based on multiple analysis/design iterations.
General format:
SEL
ECT OPTIMIZED
Description
The program selects all members based on an optimization
technique. This method performs 2 analyses as well as iteration of
sizes to reduce the overall structure weight. This command should
be used with caution since it will require longer processing time.
Notes
1) The output of this command may be controlled using the
TRACK parameter. Three levels of details are available. Refer
to the appropriate Steel Design section for more information
on the TRACK parameter.
2) This command will perform 1 additional analysis/design cycles
and therefore may be time consuming. Steps taken are:
CHECK CODE ALL; then modify ratios; then SELECT ALL;
then PERFORM ANALYSIS; then SELECT ALL. See section
5.48 Group Specification for other options used with this
command. You may want to repeat this command for further
optimization.
3) See section 5.47.3 note 3).