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RAM | STAAD | ADINA Wiki STP Parameter per IS:800-2007
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                  • Addendum-1 to IS:800-2007
                  • BASIC SECTION DIMENSONS HAVE NOT BEEN PROVIDED. MEMBER # XXX CANNOT BE DESIGNED
                  • Deflection check of member # xx will not be performed as service envelope not provided
                  • Design of User defined section according to IS800:2007 code
                  • Load Case # XX is already defined in a previous envelope. The load case of final envelope type will override previous envelope type attributes
                  • MEMBER - XXX IS SLENDER AND CANNOT BE CHECKED FOR MOMENT FORCES
                  • MINIMUM WEB THICKNESS REQUIREMENT FOR SERVICEABILITY NOT ACHIEVED
                  • Reason for difference in UC ratio for symmetrical model
                  • Serviceability Check in Design According to IS800:2007
                  • STP Parameter per IS:800-2007
                  • THE VALUE OF MOMENT AMPLIFICATION FACTORS KY OR KZ IS GREATER THAN 1.4
                  • Warning - The value of Fyld for member (cable) does not seem to be right
                  • Warning appears ‘The value of Fyld for member (cable) does not seem to be right’ during analysis
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    STP Parameter per IS:800-2007

       
      Applies To 
       
      Product(s): STAAD.Pro
      Version(s): All
      Environment:  N/A
      Area:  Steel Design
      Subarea:  IS:800-2007
      Original Author: Sudip Narayan Choudury
    Bentley Technical Support Group
       

    What is the use of STP Parameter in Steel Design as per IS:800-2007?
    STAAD.Pro is capable of designing Built-up Sections or Compound Sections, which may be any of the following types –

    1. Two or more Rolled Sections welded together
    2. A Rolled Section with Plates welded to it
    3. Plates welded together to form a section

    To identify these types of sections to the design engine for the determination of Section Classification (Refer Figure-2 of the Code), Buckling Class (Table 10, ref. Cl. 7.1.2.2), Imperfection Parameter (Cl. 8.2.2) etc. we need to add some tag with those type of sections. The design parameter STP serves this purpose.
    The default value of STP is 1, which means the section is a rolled-section, and the other option is 2, which tags the section as welded / built-up section.
    It is always suggested to assign the STP design parameter value 2 to a welded / built-up section.

    • IS:800-2007
    • Built-up Sections
    • STP
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    • Steve Crabtree Created by Steve Crabtree
    • When: Mon, Jun 20 2016 9:53 AM
    • Modestas Last revision by Bentley Colleague Modestas
    • When: Thu, Apr 27 2023 7:24 AM
    • Revisions: 7
    • Comments: 0
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