A strengthening assembly for columns and legs utilizing new galvanized hollow structural sections and wide flange beams tied into existing steel framing. The connection incorporates galvanized HSS12x4x1/4 and HSS8x4x3/8 members equipped with quarter-inch cap plates welded all around using three-sixteenths inch fillet welds. Custom galvanized plates, including half-inch side plates and shim plates in various sizes, are positioned to clear existing tie plates and rivets on existing channels. Field-installed components are detailed with specific clearance requirements around existing tie rods and rivets, and all new steel members are specified to be hot-dip galvanized.
TIE PLATES AS REQ'D. TO AVOID (E) (E) CHANNELS (2'-0" MIN.) AS REQ'D. TO AVOID (E) RIVETS AND (E)TIE PLATES AT SIDES OF 3/16 TYP. EACH END OF HSS 3 S6.4 2 S6.4 3/16 3-SIDES, TYP. TOP AND BOT. OF HSS TYP. EACH SIDE OF HSS (E) WF BEAM (E) GUSSET PLATE GALV. HSS12x4x1/4 w/ GALV. 1/4" CAP PLATE EACH END w/ 3/16" FILLET WELD ALL AROUND GALV. PL 1/2x2x1'-4" TYP. EACH SIDE GALV. 1/4" PL (BEHIND) (E) WF BEAM TYP. NEW WF BEAM TYP. REF. PLAN (E) RIVET TYP. GALV. PL 1/4x9x AS REQ.D INSTALL TIGHT AGAINST (E) RIVETS AT INSIDE OF (E) CHANNEL FLANGES GALV. HSS8x4x3/8 (LLH) w/ GALV. 1/4" CAP PLATE EACH END w/ 3/16" FILLET WELD ALL AROUND (E) TIE ROD (E) CHANNEL (E) TIE PLATES TYP. 3/16 3/16 3/16 NOTES: 1. FIELD VERIFY ALL DIMENSIONS 2. PROVIDE WEEP HOLES IN THE ENDS OF EXTERIOR CLOSED SECTIONS 3. HOT DIP GALVANIZE ALL NEW STEEL CL (E) CHANNEL AND HSS12x4 CL PLATE (FIELD VERIFY) APPROX. 0'-11 1/2" GALV. 3/8x9"x AS REQ'D. GALV. 1/4" CAP PLATE GALV. HSS10x6 GALV. 6"x12" SHIM PLATE w/ THICKNESS AS REQ'D. TO CLEAR (E) TIE PLATES GALV. PL 1/4x9x0'-2" (E) CHANNEL TYP. GALV. 2 1/2"x7" SHIM PLATE TYP. (4) LOCATIONS (E) TIE PLATE TYP. 3/16 TYP. 3/16 TYP. 3/16 3/16 5/16 TYP. NOTES: 1. FIELD VERIFY ALL DIMENSIONS 2. HOT DIP GALVANIZE ALL NEW STEEL
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