A structural steel beam frames into a hollow structural section column utilizing a three-eighths-inch A572 Grade 50 gusset plate with standard holes and five-sixteenths-inch fillet welds. A diagonal brace features a one-half-inch A572 Grade 50 gusset plate slotted one-eighth inch maximum wider than the gusset plate thickness, secured with three-quarter-inch A307 bolts and quarter-inch fillet welds. Steel beams connect using six seven-eighths-inch diameter A325N high-strength bolts and three-eighths-inch fillet welds, maintaining a one-eighth-inch maximum assembly gap. The connection details work point configurations, ninety-degree angles, and one-inch typical spacings at the column junction.
4" 3 1/4" 5/16 5/16 1/4 8 1/4 8 1" TYP. 90° 90° STL BM BRACE - SLOT 1/8" MAX. WIDER THAN GUSSET ' THICKNESS ' 1/2" A572 GR. 50 HSS COL. 5/16 5/16 3/8 TYP. ' 3/8 A572 GR. 50 W/ STD HOLES * * 1½" 3" 1½" 2 1/2" 2" * STL BM (6) 7/8". A325N 1/2" 3/8 3/8 3/4". A307 W.P. 1/8" GAP MAX. ASSEMBLY * 3"
Members view this detail in full resolution, download the CAD files (SVG, PDF), and can adapt it in the built-in CAD editor — export DXF, DWG, or PDF.
Start membership