Shop Drawings
Shop Drawings
(OP)
Hi I need to find a book that explains shop drawings for structural steel. We just got the drawings for our building but I am not familiar with a lot of terms. Is there a book that I can read that will explain some of this stuff.
All the connections are bolted - there will be no welding on the job. all the beams and columns are already cut we are mainly dealing with drilling the holes
All the connections are bolted - there will be no welding on the job. all the beams and columns are already cut we are mainly dealing with drilling the holes






RE: Shop Drawings
I am a little surprised/concerned that a mechanical engineer is reviewing structural steel shop drawings.
RE: Shop Drawings
The fact that I have an ME degree has little to do with my role here :)
Thanks
RE: Shop Drawings
ht
http://www.FerrellEngineering.com
RE: Shop Drawings
Below is a beam from one on the pages.
Starting from the lower left corner:
1-a9 = 1 a9 in this case its an L4x3-1/2x5/16 8-1/2 long
NS/FS = Near Side and Long Side - what do those refer to ?
2-3/8 GOL - What does GOL stand for and what is 2-3/8 referring to ?
5-1/2 CC (Center to Center) - which centers ?
3-7/8x2-1/2 A325n - Bolt stuff, I know that info.
What is the hexagon with the 15/16x1-1/8 inside referring to ?
and what is the "IN OSL" ?
Next area is the top left where it says (-5-5/8) what are those numbers referring to ?
Then over to the top right it says (P/P 24-3) (-4 7/16) What are those numbers referring to ?
Thanks for your help much appreciated
RE: Shop Drawings
GOL - gage of angle - the dimension from the heal of the angle to the center of the bolt hole.
Gage - center to center dimension between the columns of bolts.
OSL - outstanding leg
15/16 x 1 1/8" - Short slot hole - probably horizontal
http://www.FerrellEngineering.com
RE: Shop Drawings
P/P - point to point - centerline of column to centerline of column
-4 7/16 - same as above - must be a smaller column
http://www.FerrellEngineering.com
RE: Shop Drawings
Note: The actual dimension center of slot to center of slot is not exactly the Gage (5 1/2"). The holes in the column flange will be standard round holes a 5 1/2" c/c. The slots are necessary for this difference. Otherwise, a specific GOL would be required for every minor change in beam web thickness.
Hope this helps.
Are you having this fabricated by a structural steel fabricator? Are the holes being located and drilled by a CNC beamline? Or mag drilled one at a time?
http://www.FerrellEngineering.com
RE: Shop Drawings
RE: Shop Drawings
The Detailer must have a set of the job standards, there are variations between fab shops.
Michael.
Timing has a lot to do with the outcome of a rain dance.