shows a rigid bar AD is supported by the pin-connected rod BC. A uniform distributed load 4 kN/m is applied along the top of rigid bar AD. Rod BC is made of A-36 steel and has a diameter of 50 mm. Two types of pins are connected at point A and point B, respectively. Allowable shear stress τallow of Pin A is 70 MPa, while τallow of Pin B is 50MPa. (a) Calculate and sketch the internal normal forces of rigid bar AD and rod BC (b) Calculate the support reactions and sketch the free body diagram. (c) Determine the minimum diameter of the pin at point A. (d) Determine the minimum diameter of the pin at point B.
Figure Q1 shows a rigid bar AD is supported by the pin-connected rod BC. A uniform distributed load 4 kN/m is applied along the top of rigid bar AD. Rod BC is made of A-36 steel and has a diameter of 50 mm. Two types of pins are connected at point A and point B, respectively. Allowable shear stress τallow of Pin A is 70 MPa, while τallow of Pin B is 50MPa.
(a) Calculate and sketch the internal normal forces of rigid bar AD and rod BC
(b) Calculate the support reactions and sketch the free body diagram.
(c) Determine the minimum diameter of the pin at point A.
(d) Determine the minimum diameter of the pin at point B.
(e) Determine the elastic elongation of rod BC.
(f) Consider both types of pin connectors shown in Figure Q1, examine and explain what the impacts are if single shear pins with 30mm diameter are replaced for both connectors at point A and point B.
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