link to watch vignette video

[concrete]

here is a link where you can watch a 30 min. video showing the solution of the structural vignette. Even though, the solution you see here is not a great solution, it definitely helps to see the process. enjoy...

http://www.prepareinc.us/Vignette%20...controller.swf

[Coach]

Originally Posted by concrete

Even though, the solution you see here is not a great solution

You've got that right.

[PatrickS]

Wish he wouldn't have taken 15 minutes to read word-for-word everything on the opening and directions screen.

[Newbee]

This is a lot of help for me... I am a very visual type and I learn easily by watching ...
Makes me confident about the vignette part now..

[carouse2]

Looks like the 1st floor framing system b/w the common area and toilet would have been better
designed with columns rather than load bearing to continue the design to the 2nd floor.
Also, covered entry would be better (economy) spanning the other direction?
Thoughts?
Any other discussion on what may not be the best solution?

[anabab]

I could see this being a BAD solution - but I would like to know if there is a guide to the zoning vignette like this? My next test is a re-take and its just because I failed the zoning vignette. Word on the street is that there is a "curve ball" that I didn't catch. Perhaps this is for the PPP forum... but if CONCRETE is reading this and knows of a zoning vignette walk thru - I would appreciate the hook up!

thanks
anabab

[Marc Mitalski w/ PREPA.R.E., Inc]

Dear Colleagues,

Yes, there are several passing solutions options, and this is one of them. Actually,I believe that I arrived at the same solution that NCARB shows as a passing solution in their guidelines for the Structural Systems vignette.

Yes you could use a post and beam solution, but it is just as easy to use bearing walls. It is up to you. I chose bearing walls as the exterior walls would need foundations regardless (in professional practice) if they were bearing or non-bearing due to their self weight and frost depth requirements...so why not just use them as bearing walls with footings anyway.

Regarding the entry, yes, that could go either way. Spanning the joists in the North/South direction frames them into elements that have already been defined as bearing walls based on the framing on the opposite side of the respective walls. If the framing was rotated 90 degrees to span in the east/west direction a long-span girder would need to be introduced along the exterior edge and a beam would be needed over the entry door. This does not seem as economical.

Anyway, that is some insight to the decisions made. Feel free to e-mail me with inquiries regarding my solution or to discuss yours.

Sincerely,

Marc

[carouse2]

Marc, first of all thanks for the tutorial. It was a great help to see someone work the design methodically. I was trying to figure out what Coach meant, as I was hoping to see the issues he or someone else saw that I didn't.

My thought was that you would typically use a post/beam framing and just block infill the wall, which would allow you to bear the column on the foundation and not the wall, but you're the structural engineer.

I'm studying for this test and testing w/i the month, so thanks for any insight.

[concrete]

Originally Posted by Marc Mitalski w/ PREPA.R.E., Inc

Dear Colleagues,

Yes, there are several passing solutions options, and this is one of them. Actually,I believe that I arrived at the same solution that NCARB shows as a passing solution in their guidelines for the Structural Systems vignette.

Yes you could use a post and beam solution, but it is just as easy to use bearing walls. It is up to you. I chose bearing walls as the exterior walls would need foundations regardless (in professional practice) if they were bearing or non-bearing due to their self weight and frost depth requirements...so why not just use them as bearing walls with footings anyway.

Regarding the entry, yes, that could go either way. Spanning the joists in the North/South direction frames them into elements that have already been defined as bearing walls based on the framing on the opposite side of the respective walls. If the framing was rotated 90 degrees to span in the east/west direction a long-span girder would need to be introduced along the exterior edge and a beam would be needed over the entry door. This does not seem as economical.

Anyway, that is some insight to the decisions made. Feel free to e-mail me with inquiries regarding my solution or to discuss yours.

Sincerely,

Marc

great to see Marc's post here in the forum.
Marc, do not take it as negative. actually, we didn't mention that Marc's solution is bad or it is a falling solution, just said they are not great (as compared to some of the solutions that examinees post to this forum). but, it defenitely helped to see the process and i would recommend every body to watch this FREE video for preparing the particular vignette. But i have a big complain to you about the pricing of the lecture. I was willing to see the lecture, but the price is too high. i think, only %5 of the intern architect can afford this. what about the rest 95% like me?

btw, one question regarding vignette - do we need to extend the decking to exterior edge of wall or keep to the center line of the wall?
one more - you drew beams part by part for each bay. is it also ok to draw a continuous line to represent the beam or not?

thanks a lot.
Concrete

[Marc Mitalski w/ PREPA.R.E., Inc]

No offense taken - there is always more than one-way to solve a problem...I just wanted to give my thoughts on the process I chose so people would better understand.

Regarding the decking I think you would be fine either way. The NCARB Structural Systems reference guide says "To designate decking, you should draw the rectangular boundary of each area of the roof that is to receive decking and orient the direction arrow to indicate its span direction." Pretty vague.... so my approach would be to draw the deck from edge to edge of the walls and what you would perceive as the roof boundary. However, if you zoom in on the NCARB solution given in their guidelines, it appears that their "passing solution" shows the deck stopping at mid depth of the walls.

Regarding beams - for bearing wall systems I would recommend going from wall end to wall end and providing simply supported beams. In a post-and-beam system I believe it would be acceptable to use a series of beams being broken at each column or just one continuous beam over all of the columns. (I believe the ARE Solution book by Norman Dorf addresses this in this fashion as well)

Sincerely,

Marc