This connection details a beam-to-column flange moment connection utilizing ASTM A572 Grade 50 connection plates of thickness p and doubler plates of thickness dp welded to the structural members. The bolted assembly specifies 1-1/4 inch diameter A490X bolts, with the first row utilizing standard holes fully pretensioned and subsequent rows utilizing long slotted holes snug tight with standard washers. Edge distances and spacings are detailed with a 1 inch maximum dimension, 3 inch spacing, and 3-3/4 inch typical spacing. Fillet welds of size w and dw connect the plates to the respective framing members.
A SECTION MAX 1" 3" "e" TYP. 3 3/4" TYP. 1" 3" 1ST ROW- STD HOLES ≥ 2ND ROW- LSLV n=NO. OF COLUMNs m=NO. OF ROWS w TYP. BOLTS: 1¼"Ø A490X BOLTS 1ST ROW: STD BOLT FULY PRETENSIONED ≥ 2ND ROW:LSLV HOLES, SNUG TIGHT W/ STD. WASHERS. NUMBER OF BOLTS PER SCHEDULE A572 GR.50 PLATE "p" THK. A572 GR.50 DOUBLER PLATE "dp" THK. CONNECTION THRU FLANGE dw TYP.
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