The Seismic Weld Access Holes window ( Job Settings )

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To open Seismic Weld Access Holes :

Method 1 : Home > Project Settings > Job > Design > Seismic Weld Access Holes .

Method 2 : In Modeling or the Drawing Editor , choose Settings > Job Settings > Seismic Weld Access Holes .(classic), or use a keyboard shortcut , or click the icon.

Password protection: If a password has been set using the Change Setup Password utility, you can open this window only if you first enter that exact password.

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Options :

Access Hole Type: A or B or C or D or E or F or G or H or I or J or K or L or M or N .

On this window:
" Access Hole Type " = ' A ' is the first row.
In the local shape file:
" Seismic Access Hole " for ' W21x44 ' = ' A '
On the Beam Edit :
" Section size " = ' W21x44 '
" Moment type " = ' Welded '
" Seismic moment frame member " = ' Yes '
The final result:
Connection design looks at the settings in row ' A ' on this window to design the seismic welded moment connection on the 21x44 beam.

A special case: If the local shape file's " Seismic Access Hole " designation is ' None ' for a particular " Section size ," then connection design does not reference this window, but instead uses the the setup values defined for moment connections in Weld Design Settings .

Warning: Since these letters (A, B, C, etc.) are " Seismic Access Hole " designations for wide flange sections in the local shape file, do not change them.

(1): The top/bottom groove angle ( 0 to 90 degrees). As specified in the AISC Seismic Design Manual , ' 30 ' is the default groove angle for every " Access Hole Type ." On the left end, '30' bevels the flange 30 degrees clockwise from vertical. On the right end, '30' bevels the flange 30 degrees counterclockwise from vertical. ' 0 ' leaves the top and bottom flanges unbeveled.

(1) = groove angle. The value entered for (1) applies to both the top and bottom flanges.

(2): The flange flush length is the distance measured parallel with the flange from the inside corner of the beveled flange to where the weld access hole is no longer flush with the flange. In the AISC Seismic Design Manual , this value can range from 1/2 inch (for " Access Hole Type " ' A ' and ' B ') to 4 inches (for type ' N ').

(2) = flange flush length. The distance along the flange, excluding the beveled portion of the flange, that the web is cut flush to the flange.

(3): The flange to hole distance . Assuming that the beam is horizontal, this is the distance measured perpendicular to the flange (in the primary dimension " Units " or other units ) from the inside of the top or bottom flange to the center of the hole.

(3) = flange to hole distance. This is the distance from the inside of the flange to the center of the hole.

(4): The hole radius . In the AISC Seismic Design Manual , ' 1/2 ' is the default hole radius for every " Access Hole Type ."

(4) = hole radius. " Add holes " in CNC Setup can be set to download this hole.

(5): The web to hole distance . This is the distance measured perpendicular to the web (in the primary dimension " Units " or other units ) from the web to the center of the hole.

(5) = web to hole distance. Note that these examples have a " Web setback " and that this distance is measured to the actual edge of the web, after that setback has been applied.

Web Setback: The distance (in the primary dimension " Units " or other units ) from the beam web to the face of the supporting member minus the weld gap .

s = web setback.

Weld Gap: The distance (in the primary dimension " Units " or other units ) from the edge of the beam's flange to the face of the supporting column.

g = weld gap. This example shows doublers and stiffeners in the column.

Root Face: The desired root face dimension (in the primary dimension " Units " or other units ) that defines how much of the flange is clipped on welded moment connections.

rf = root face.

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To close Seismic Weld Access Holes :

   

"OK" (or the Enter key) closes the Seismic Weld Access Holes window and saves the settings on it to the Job Settings file in your current Job .

Note: If you have made changes to this window and want to ensure design consistency throughout your current Job, you should mark for processing (or Process Selected ) all members in your current Job, then Process and Create Solids .

"Cancel" (or the Esc key or the button) closes this window without saving any changes made to it.

"Reset" undoes all changes made to this window since you first opened it. The window remains open.

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