Design of frame structure with Indian Standard IS 13920

Dear All,

Design of frame structure with Indian Standard IS 13920

 

I designed a RCC frame structure with Indian code IS 456. The design result was alright. As the structure was in high seismic zone, I reperformed the design with IS 13920. The structure even though has been designed by the software but the design result is full of unheard warnings, mostly of the same character, particularly as under:

 

Warning: ‘ UDL loading is not defined for member 85, 86, 89 ……….etc etc

Default value will be used’

 

Almost all the beam members are in the list of warning. There was no such warning when I ran the file with IS 456. Now I have to submit that when there is no UDL on the beam members in the structure how can I load them with UDL.

 

Please clarify whether Staad pro V8i is not inbuilt for designing the structure with IS 13920 – Ductile detailing or there is a bug in the software. As the design has been performed with default value for UDL, may I know what default value has been considered by the software.

sureshprsharma

Parents Reply
  • Dear Sir,

        The error can be removed by using EUDL or GLD parameters in the design component...

    I am not sure how or when to use the EUDL parameter... I am using GLD parameters only...

    Usage of GLD parameter:

    After setting Design Code as IS13920 and before setting Design beam command, enter

    GLD <load comb no> <list of beams>

    The load comb number should refer to a load combination in the staad file that is set to 1.0(DL+LL) and list of beams should be full set of beams being designed by IS13920 code...

    Hope that helps...

    Arun

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