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RAM | STAAD | ADINA Wiki Explanation on how SELECT OPTIMIZED works
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    Explanation on how SELECT OPTIMIZED works

    Applies To
    Product(s): STAAD.Pro
    Version(s): ALL
    Environment: ALL
    Area: Design
    Subarea: Steel Design
    Original Author: Sye Chakraborty, Bentley Technical Support Group

    Can you please show how to properly use the SELECT OPTIMIZED command ?

    Here is a sample input for the SELECT OPTIMIZED
    ...
    PARAMETER 1
    CODE AISC UNIFIED 2005
    METHOD ASD
    FIXED GROUP
    GROUP MEMB 1 TO 10
    GROUP MEMB 11 TO 20
    GROUP MEMB ...
    SELECT OPTIMIZED
    PERFORM ANALYSIS
    CHECK CODE ALL

    The SELECT OPTIMIZED command actually is equivalent to the following  internal steps

    CHECK CODE ALL
    SELECT ALL
    PERFORM ANALYSIS
    SELECT ALL

    The FIXED GROUP specified ahead of the SELECT OPTIMIZED ensures that the sections are grouped after the final SELECT ALL command ( processed internally as part of the SELECT OPTIMIZED command ). The PERFORM ANALYSIS after SELECT OPTIMZED ensures that the structure is re-analyzed based on the sections after the grouping which would result in redistribution of member forces. The final CHECK CODE checks whether the final sections are able to satisfy the code check based on the redistributed member forces.  

    • optimize
    • Optimization
    • member selection by optimization
    • SELECT OPTIMIZED
    • FIXED GROUP
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    • Sye Created by Bentley Colleague Sye
    • When: Tue, Jun 23 2015 7:45 PM
    • Sye Last revision by Bentley Colleague Sye
    • When: Tue, Jun 23 2015 7:46 PM
    • Revisions: 2
    • Comments: 0
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