The rigid bar AB is supported by two rods made of the same material. If the bar is horizontal before the load P is applied, find the distance x that locates the position where P must act if the bar is to remain horizontal. Neglect the weight of bar AB.

Q: The ball is truncated at its ends and is used to support the bearing load P. If the modulus of…

A:

Q: The braced frame (vertical truss) has a hinge support at point A and a horizontal roller support at…

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Q: Determine the force in each member of the loaded truss. The force is positive if in tension,…

A: Solution: Free body diagram:

Q: Determine the horizontal displacement of joint C.  The length, L, of trusses AC, BC is 1,300 mm.…

A: EAC = 135 GPa = 135 × 103 N/mm2 EBC = 150 GPa = 150 × 103 N/mm2 AAC = ABC = 360 mm2 Determine the…

Q: Determine the reactions at the supports. Assume the support at A is fixed and that at B is a roller.…

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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.