This slideshow is of different field welding (on site) jobs done in the past.
Pre-fabricated metal buildings are mostly put together with structural bolts and fasteners but this header for this corner entry way rests on these structural clips. A connection like this one needs to be welded. The vertical leg of the angle bar clip is welded to the column in the shop that manufactures the building.
A more zoomed-out look shows you what else needs to be welded in this area. Those vertical channels need to be welded in the overhead as well as any angle clips for this structure.
The angle clips in the flat position were pre-welded in some areas but in other areas they had to be added later.
Code D1.1 from the American Welding Society is the qualification that gives me the privilege to do work like this. This structural clip was holding up 1 of the 2 headers for the corner area on the far end.
Here are the 2 clips underneath both headers where they meet in the corner. I missed chipping away a little slag at the toes (tsk tsk!), but the welds are acceptable.
These are the 2 clips at that same corner but only on top of the headers.
This is another upper clip sitting on top of the header but on the other end from the corner.
A couple of loose clips were required to be put on top of one of the headers.
Simply stick it on top of the header in the corner and weld it all the way around.
This angle clip was for a header in another location. There was another header further down the front side of the building from the street. This one sat with a little gap so I added a two-weld-pass layer to the fillet weld for extra reinforcement.
There were 8 locations where these vertical channel bars had to be welded in the overhead. (Shown in between the I-beam and tubing header). Jobs like this keep you moving and it's a great feeling!
Here's the outside of one of the channel bars looking up at the underside of the beam flange after welding a pass all the way around.
These welds got pretty tough to clean with just a chipping hammer and wire brush on hand, but you have to at least clean it enough to make sure the weld is satisfactory.
These were a little tricky on the inside but hold your angle and hold that upper surface when you're running that weld in the overhead and you should be good.
Here's another one of the insides.
This is that other, side entryway that I mentioned previously.
This column needed to be welded to the centerline of the header. The baseplate was 3/4" thick. I wanted to make sure there was a suitable fillet weld all the way around on that.
Here's a look from the other side.
These plates needed to be welded in multiple locations. They were located in the perimeter steel structure just behind the exterior bricks. These plates were meant to strengthen the anchor points for the steel canopies for that corner area of the building.
There were many of these to do. I figured I would show just a few. So many welds and not enough slides.
Here's a view of another one of those areas that got reinforced with the 1/4" steel plates. This miscellaneous structural work is always a good workday.
Later on in the project the corner area was all closed in. There needed to be additional structural beams added. I started welding these stiffener plates in the webs of the perimeter I beams.
A stiffener plate was required for each new beam end. Here's another fully welded and close up.
These stiffeners needed weld on both sides of the plate and all the way around; flat, vertical and overhead.
These channel bars were added in. I'm pretty sure it was just to sure up the structure to help support the canopies but there could have been more to it than that. Here's a close up of one of those connections, channel bar to plate stiffener.
Here's the inside of one of those channel bars to the other surface of the stiffener.
This is a close-up of a channel bar end to the back surface of the channel bar running perpendicular. The lighting wasn't great in there. I edited the brightness a bit.
There was no way to get a small lift into the area. Sometimes you just need a little help from your friends! (and some creativity)
Here's another angle of the channel bars put up. To help secure those 90-degree connections, I welded angle clips as needed all the way around. The shadow is blocking half of the clip but its up there.
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