Printing Story shear and story stiffness in STAAD pro

Hi,

I am using ASCE 7-05 for seismic design where i have to check the vertical irregularities of the structure using chapter 12 of ASCE 7-05.

For checking the soft story irregularity, i need story stiffness of the each story of the structure.

Please advise how to get story stiffness and story shear from STAAD pro.

Regards

Murali

Parents
  • To print the shears at each level, use the command PRINT LOAD DATA with the analysis command as shown next
    PERFORM ANALYSIS PRINT LOAD DATA

    The analysis output file will list the shears at each node and also by floor.

    To get the story stiffness, first ensure that you that you have floor diaphragms defined and then use the following command
    PRINT STORY STIFFNESS

    This command could be anywhere after the analysis command.

    Also it may be worth noting that STAAD.Pro can directly check for soft story as per ASCE 7-05 code. For that you need to use the CHECK SOFT STORY command, after the diaphragm definition, as shown next
    ...
    FLOOR DIAPHRAGM
    DIA 1 TYPE RIG HEI 120
    DIA 2 TYPE RIG HEI 240
    DIA 3 TYPE RIG HEI 360
    CHECK SOFT STORY ASCE7
    ...



Reply
  • To print the shears at each level, use the command PRINT LOAD DATA with the analysis command as shown next
    PERFORM ANALYSIS PRINT LOAD DATA

    The analysis output file will list the shears at each node and also by floor.

    To get the story stiffness, first ensure that you that you have floor diaphragms defined and then use the following command
    PRINT STORY STIFFNESS

    This command could be anywhere after the analysis command.

    Also it may be worth noting that STAAD.Pro can directly check for soft story as per ASCE 7-05 code. For that you need to use the CHECK SOFT STORY command, after the diaphragm definition, as shown next
    ...
    FLOOR DIAPHRAGM
    DIA 1 TYPE RIG HEI 120
    DIA 2 TYPE RIG HEI 240
    DIA 3 TYPE RIG HEI 360
    CHECK SOFT STORY ASCE7
    ...



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