Moment Connection at stud wall?

[dannyypk]

I am reviewing one of my " senior " Engineer works and came across this details.

The existing stud wall is over stressed due to the new install roof screen. (moment @ the base of the parapet wall is over-stressed)

To reinforce the wall, He claimed he will use the Simpson CS coiled strap to wrap around the studs and use that as a moment connection.

Question:

1) Is the Simpson allowed to bend "three" times to maintain the tension capacity?

2) Is it qualify as a moment connection??

3) Is that " Moment connection" help to reinforce the over-stressed studs?

My suggestion to my head engineer will be

1) Add kicker to the parapet wall
2) Reinforce the 2x6 parapet wall by sistering a 2x6 to the side. (length determined by moment capacity.)

 

[KootK]

No to 1, 2, & 3. Your alternate suggestion is fine but, frankly, I'm surprised that the parapet studs need any help at all. As drawn, the parapet looks to be about 2' tall.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

 

[manstrom]

Agreed. That strap won't develop tension because of the bends. Even if they were straight, they would need to stretch a bit to develop.

When I am working on a problem, I never think about beauty but when I have finished, if the solution is not beautiful, I know it is wrong.

-R. Buckminster Fuller

 

[jayrod12]

I'm with Koot on this one for 1 2 and 3.

I'm assuming though that the roof screen that is not shown on the reinforcing detail. Otherwise why would you need a ridiculously sized top plate and 2x10 blocking on the inside face.