apetr26542
Structural
- Mar 10, 2003
- 108
I've been the Project Managing Engineer on many projects, this one, a small job, a floor infill, about 21'x 50. The proposed floor infill I designed was W12x22 @ 36" o.c. on 9/16" form deck, with 3.5" total slab. The beams frame between two 12" cmu walls that are two stories in height. I have record drawings. The wall checks out, the foundations have reserve.
Turns out the owner was quoted W16x26 @ 2ft o.c., turns out the credit was not substantial from the contractor. Owner wants this level of comfort, so they decide to go with W16x26. Now my original detail was wall bearing one end and end plate the other with (2) - 3/4/ dia. wedge anchors into an existing bond beam, I figured they could make up some adjustment with the wall bearing end and get the end plate end tight.
Well, trying to pocket beams at 24" o.c. would not leave much wall left, I recommended to the contractor erect your beams at 48" o.c. grout your pockets and do the remaining. NO, they did not want to do this, so I came up with a double angle connection, with adjustment, field welded to the beam and (6) -3/4" sleeve anchors that go into hollow masonry. I had them field weld the angles to the beam to remove any pullout on the block.
A few days later, the architect calls and said they want the managing partner of our firm out there, some comments are being made about the design, from I believe the people going to do the flat work and or contractor.
I mean, I was totally in the dark, I reviewed my design with our managing partner after he was called, he is fine with it. Basically the architect side blinded me, never gave me a heads up. Right now, I am going to turn this project over to our managing partner and tell him, I now have no authority, since I've been undermined, I am turning it over to you.
What do you think and have you experienced this before, I am frustrated and a bit upset.
Turns out the owner was quoted W16x26 @ 2ft o.c., turns out the credit was not substantial from the contractor. Owner wants this level of comfort, so they decide to go with W16x26. Now my original detail was wall bearing one end and end plate the other with (2) - 3/4/ dia. wedge anchors into an existing bond beam, I figured they could make up some adjustment with the wall bearing end and get the end plate end tight.
Well, trying to pocket beams at 24" o.c. would not leave much wall left, I recommended to the contractor erect your beams at 48" o.c. grout your pockets and do the remaining. NO, they did not want to do this, so I came up with a double angle connection, with adjustment, field welded to the beam and (6) -3/4" sleeve anchors that go into hollow masonry. I had them field weld the angles to the beam to remove any pullout on the block.
A few days later, the architect calls and said they want the managing partner of our firm out there, some comments are being made about the design, from I believe the people going to do the flat work and or contractor.
I mean, I was totally in the dark, I reviewed my design with our managing partner after he was called, he is fine with it. Basically the architect side blinded me, never gave me a heads up. Right now, I am going to turn this project over to our managing partner and tell him, I now have no authority, since I've been undermined, I am turning it over to you.
What do you think and have you experienced this before, I am frustrated and a bit upset.