The cast iron bearing seat in the picture is bolted to the steel beam of the ceiling bracket and supports the gravity load. Use M20 coarse thread ISO class 8.8 bolts with a thickness of 3.4 mm The steel washers are placed under the bolt head and nut. The flange of this bracket is 20 mm thick, the shaft The elastic modulus of the bearing is 135 GPa. (a) Assuming this is a permanent joint and the fasteners are lubricated when assembled, find the required wrench torque. (b) If the gravity load is 15 kN, try to find the load factor n of the design

A plate is used as a tension member, to carry a deadload = 300 KN and live load of 260 KN. Steel used is A36, Fy= 248 MPa, Fu = 400 MPa. If the width of the tension plate is 210 mm, determine: a) The thickness of the plate based on NSCP 2015 ASD, bult used is M20.------ b) The thickness of plate based on NSCP 2015 LRFD. Bolt used is M20.-------- I M20 bolts- 210 mm -Tension Plate

A W14X120 is used as a tension member in atruss. The flanges of the member are connected to a gusset plate by 3/4 inch boltas shown below. Use A36 steel with Fy-36 ksi and Fu=58 ksi Determine the Yielding Capacity of the section based on LRFD (kips) Determine the Tensile Rupture capacity of the section based on LRFD Determine the Demand to Governing Capacity Ratio (based on yielding and rupture only) if the Demand load carried by the section are DL=200 kips LL=400 kips use LRFD Properties and Dimension Ag=35.30 in^2 x = 6.24 in ry= 3.74 in d=14.5 in tf=0.94 in bf=14.7 in tw=0.59 in k=1.54 d=14.5 Y k1=1.5 bf=14.7 tf-0.94 X -tw=0.59 H

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