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
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
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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.
Transcribed Image Text:di
Fig. 2
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