STAAD.Pro Help

To perform the column design

  1. Either:

    select the Autodesign tool


    select Design > Autodesign.

    The Failed Columns Dialog dialog opens indicating that two columns have failed the design checks.
  2. Click OK.
  3. Either:

    select the Failure Diagnostics tool


    select Reports > Failure Diagnostics

    The Failure Diagnostics tab opens. The table indicates that the two beams have failed a detailing check.
  4. Evaluate some options for column 12:
    1. Select the row for column C12 from 6m TO 12m in the column design table. This column is marked with a red tag to indicate it failed one or more checks.
    2. Either:

      select the Redesign Section tool


      select Modify > Redesign Section


      right-click on the column row and select Redesign Section from the pop-up menu

      The Redsign Column dialog opens at the bottom of the program window.
    3. In the Dia list, select 20 (mm) and then in the Bars list select 3#. This will place 20mm bars in groups of three in the section.
    4. Click on any of the corner bars in the cross section. The color-coded size of the grouped bars are added to each corner.
    5. Repeat steps 4c and 4d to add single (1#) 20mm bars along the faces.
      Note: Once you select number of bars, you only need to click twice in the section to update all the face bars.
    6. Select the Redesign tool in the Redesign Grp dialog. The column now passes design and detailing checks.
    7. Select the Accept tool.
    Tip: Right-clicking on a wall and selecting Redesign Section allows you to graphically detail a wall section in the same manner. Try this with W1 in the Column Design table as an extra excercise.
    The Design Output table now shows green for the G1 beam indicating it passes.
  5. Repeat step 4 to redesign the other failing column (C23).
  6. Right-click on the second level column 12 (C12: 6m TO 12m) and select Interaction Surface from the pop-up menu. The Interaction Surface dialog opens.
  7. Review the interaction surface:
    Option Description
    To display the interaction at critical points for a load combination select that combination from the table
    To view the interaction at any point along the column height drag the slider to a specific load value
    To control the view of the interaction surface use the view controls at the top of the interaction surface view window
  8. Click the X in top-right to close the Interaction Surface window.