Rigid bar ABC shown in the figure below is supported by a pin at A and tie rod BD. Tie rod BD is supported by double -shear pin connections at B and D. Assume a= 600 mm, b= 300 mm, h= 450 mm, and 0=30°. P (depending on the first letter of your first name) is given as in the Table below. First letter of your first name Value of P (kN) A to F 2.0 1) Find the value of the force in rod BD. 2) If the allowable normal stress in member BD is 50 MPa and the allowable shear stress in the pin at B is 20 MPa, determine the required diameter of rod BD and required diameter of pin at B.

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Bars

In civil engineering, bars refer to steel reinforcement bars or rebars. These are structural members primarily used for reinforcement purposes in masonry works. A bar is characterized by its cross-sectional area, which is negligible compared to its length. Bars are usually manufactured by steel which is uniform throughout the length, or by meshing multiple steel wires. Other materials of the bar include carbon steel, glass fiber, carbon fiber, and basalt fiber. The reinforcing bars are coated with epoxy resins and other materials to enhance some of their properties including corrosion resistance.