vertical eave beam

[muleman1]

Over the last couple years I have posted questions about vertical eave beams. Maybe we are just thinking locally as I know AS is a world wide program. But are vertical eave beams/ purlins not a most common thing in the PEMB industry? I know they have been on the eaves of all the PEMB buildings we have been a part of in the last 36 years.....

BTW, an unrelated question...when I was preparing this screenshot, I had no problem at all with increasing the sloped dashed line, but I tried for several minutes to get the vertical line to match. Even the properties dialogue box says they are identical, but they do not appear identical...

[johnjmbennett]

When inserting the purlin macro, there is a command request "do you wish to select a reference beam". , at this point we would select the main column of the portal.  This then aligns the eaves to the column flange.  Check vertical, set offsets to zero in both dialogs , it should then align the system to the face.  You will have to measure distances from reference lines for roof and vertical  sheeting lines, then enter values in the dialog to move the eaves beam.

it should work with tapered beams used as columns in the pre engineered building.

[muleman1]

@johnjmbennett take a look at this screencast, I must be missing a simple step

[muleman1]

maybe  @Emanuel.Nestor or @AleckGiles or @múinteoir could comment on screencast

[johnjmbennett]

Change the eaves beam system reference to the top right corner of the section. Then offset in horziontal and vertical direction .

You need to draw a couple of lines to get reference point.

[muleman1]

@johnjmbennett I cannot get the bottom flange of the eave strut to go parallel with the rafter.....if you can, will you please  do  short screencast to show how you get it

[johnjmbennett]

For this you need to create a profile with the bottom flange at the angle of the roof.

For uk systems we do the opposite, the eaves are created as a user profile, then unrergrated into a supplier group, the top flanges are set at 1degree intervals. As suppliers tend to manufacture in 1 degree increments.

Supprised canam do not have this in the system, as they are named account with Autodesk.

[johnjmbennett]

Was going to add if the eaves profile is an particular table type in the database( you have to look via table editor or sql tool). If it has "int" at the front then it use actual defined by a user profile, so you could add profile via user shape/profile, then copy the data line into the same canam table, make the naming of the profile the same, this will help it fit into the existing structure.

[muleman1]

We have made and implemented user profiles in the past, with the help of kind gurus from forum. 

We haven't need a user profile in some time, but from what I read on the forum, didn't the 2018.1 hotfix wreck the user profile input/creation ?

[johnjmbennett]

Hi, sorry not at my machine, will take a deeper look at canam sections .

JB

[muleman1]

This is what we are after, see how the bottom flange of eave strut is parallel with unseen rafter....we thought this would be an AS out of the box, common part...

[johnjmbennett]

So you need a user profile definition for the shape of the profile.
Looked at canam PDF for purlins and grits, no mention. Of eaves type beam.

If you know what the profile is then create as user profile, link that user profile to the Purlin SE macro via the gui allowed sections. This is the same way as stair stringer / handrail profiles are added to be in those macros.
For uk we created a series of beams at 1 degree increments to cover the range of different roof slopes.