Question

Design a slip-critical bolted connection for the following conditions: • All structural steel is A36 • Length = 10 ft. • The tension member is 2L7 x 4 x 7/16 LLBB. • The connection will be to a 3/8-inch-thick gusset plate • Service dead load = 50 kips and service live load = 100 kips. Provide a complete sketch showing all information needed for the fabrication of the connection. Use LRFD.

Answer 1

Solution Ultimate load (Pe) = 1.2 (dead load) + 16 ( service load) -12 (50) +1.6 (100) Pu =220 kips AISC , J. 3-8(a), The available slip resistance for the limit state of slip for Standard size & Shoot Slotted holes perpendicular to the dissection of loads. 0=1, "=0.3 class A surface Du = 1113 , be=1 To = Foom ATSC J3.1 table 3.1 3/8 ~ 28 = T6 1. No of slip surface , 25=2 : Roo=4 Du hq Tons = 0.3x1.13* 1 x 28 2 Pn = 19 kips. (bolt LRED, Ra= Ø Ros = 140x19 = 19 kips / bot No of bolts.076.- Pane = 270 = 11:51 V12 bolte - Pu

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