Frame Member Data - Stepped Column

(Revised: 07/20/2021)

 

Stepped Columns from I/A Frame will have 3 members, the 2nd member will be tapered for design only.

Per the Designer: The 2nd member can either be stretched so it is straight (as defined in this lesson), or the 2nd member may be deleted and the 1st member can be stretched.

 

At this time, stepped columns must be detailed as 2 separate columns that are welded together in manufacturing.

To split the columns into 2 separate, assign the Bolting Plate to the lowest Member ID number.

 

An Exception Drawing (J3) must also be sent for Manufacturing clarification.

 

 

1.    This shows a sample of a stepped column after it has been to I/A Frame.

Note: the 3rd member should be at the correct location and have the correct sizes.

 

2.    Revise the Depth 2 of the 2nd member to match the Depth 1.

In this example: Revise 24" to 36”

 

3.    Revise the Splice 2 of the 2nd member to be Bolting Plate.

4.    Select the 2nd member and press the Properties button.

 

5.    Select a plate that can be used for the crane to attach to.

Note: If a standard plate cannot be used, you can create a User Plate (001SP).

 

6.    Adjust the plate size as required from the Designer.

7.    Go to Welds and define all the plate welds to both the upper and lower frame members.

 

8.    After modifying the Frame Member Data, you can go to Frame Data and add all of the Holes, Stiffeners, and Miscellaneous Plates as required.

9.       Engineering Process:

a.       Both frame parts must be entered in Vision as ship loose parts.

b.       Both frame parts must be noted in ETW > Detail Milestones > Detail Notes as:

“CX### welds to CX###”.

c.       Add a shop reference drawing to the MSD for each (sub)assembly to show the weld detail for the plant to follow. 

                                                   i.      Template is a .dwg file type and can be edited:

\\stlmkcvsap18\Acad blocks\CAD Library\MSD Blocks\Stepped Column.dwg

·       You will be asked if you want to open drawing as read only, select Yes.

·       Open in Block Editor? Choose Yes or No.

                                                 ii.      Define parts to be welded together.

                                               iii.      Include final assembly weight on this drawing.

 

d.       Erection Drawings: Columns will show as (2) part mark numbers on the drawings and shipping manifest. Add note to drawings informing the erector that the 2 pieces are welded together.