(Answered): PROBLEM 1. Truss members supporting a roof are connected to a 26-mm-thick gusset plate by a 22 mm d ...

PROBLEM 1. Truss members supporting a roof are connected to a 26-mm-thick gusset plate by a 22 mm diameter pin as shown in the figure and photo. The two end plates on the truss members are each 14 mm thick. Roof structue Truss member (a) If the load P 80 kN, what is the largest bearing stress and shear stress acting on the pin? Answer: ?b- 139.9 MPa, Tpin 105.2 MPa End plates Pin Gusset. plate -14 mm (b) If the utimate shear stress for the pin is 190 MPa, what force Pul is required to cause the pin to fail in shear? (Disregard friction between the plates.) Answer: P-144 kN 26 mm