Vignette Questions

[Clover79]

Can you put a column in the windows in a window wall? How strict is the 30' rule for joist span - like if you had the choice between having joists spanning two spans of 16' or is it better to go to 32' single span?

[Coach]

Can you put a column in the windows in a window wall?

That's addressed in the program.

How strict is the 30' rule for joist span - like if you had the choice between having joists spanning two spans of 16' or is it better to go to 32' single span?

30' is a guide. I would use 35' as an absolute max.

[Clover79]

Okay thanks. I understand that it says windows are allowed in the window wall but I wasn't sure if they mean in a portion of wall next to the windows(if there is one) or actually within the windows themselves?

[Mike-SE]

Can you put a column in the windows in a window wall?

That's addressed in the program.

How strict is the 30' rule for joist span - like if you had the choice between having joists spanning two spans of 16' or is it better to go to 32' single span?

30' is a guide. I would use 35' as an absolute max.

There is a vignette in one of the exams you would fail if you use 35' max.

[Coach]

There is a vignette in one of the exams you would fail if you use 35' max.

What does that even mean?

[Clover79]

I would like to know what that means as well. Coach, can you clarify the window wall question as well, as to whether a column is allowed within the windows themselves or in a piece of wall in the window wall?

[Mike-SE]

Coach, I sent you a PM explaining more than should be on the forum. TMI.
For others:
Imagine, the high roof is over a room with dimensions of 60' x 60'. Columns allowed only in the walls. There is a 20' long window in each wall and no columns are allowed in the windows.
How do you solve that problem and maintain the silly 30 and 40 foot rules of thumb?

[Coach]

Coach, I sent you a PM explaining more than should be on the forum. TMI.
For others:
Imagine, the high roof is over a room with dimensions of 60' x 60'. Columns allowed only in the walls. There is a 20' long window in each wall and no columns are allowed in the windows.
How do you solve that problem and maintain the silly 30 and 40 foot rules of thumb?

A) You won't see a vignette that looks like that.
B) Columns are allowed in window walls.

[Coach]

Coach, can you clarify the window wall question as well, as to whether a column is allowed within the windows themselves or in a piece of wall in the window wall?

The program addresses that.

[zahzou]

Candidates should be prepared for how they will choose to solve a vignette if the upper-story space exceeds the 20'-35' rule of thumb (emphasis on rule of thumb) in both directions. You should have a strategy for solving if both spans are more than 35' - I never saw this in any of the alts that people posted.

[iei515]

You should have a strategy for solving if both spans are more than 35' - I never saw this in any of the alts that people posted. I did not go into my exam prepared for this possibility (silly me), and it was an unwelcome shock.

What would be the best strategy for solving if both spans are more than 35'? Anyone have insight on this?

[Mike-SE]

You should have a strategy for solving if both spans are more than 35' - I never saw this in any of the alts that people posted. I did not go into my exam prepared for this possibility (silly me), and it was an unwelcome shock.

What would be the best strategy for solving if both spans are more than 35'? Anyone have insight on this?

Paraphrased from my vignette guide:
ALWAYS, ALWAYS span the short direction of the roof. Once you are comfortable with that thought the rest is easy.
If you are not comfortable with that thought, you are not ready for the exam period