A driver accidentally bumped a fire hydrant creating a bendi…

A driver accidentally bumped a fire hydrant creating a bending moment of 770 N·m in the pipe below. The pipe has an inside diameter of 175 mm and a wall thickness of 6 mm and is pressurized to 395 kPa. Determine the largest normal stress along the length of the pipe.

A simply supported beam with dimensions of b = 16 in., h = 2…

A simply supported beam with dimensions of b = 16 in., h = 28 in., d = 25.5 in., and L = 23 ft supports a uniform service (unfactored) dead load of 2.266667 kips/ft including its own self weight plus a uniform service (unfactored) live load of 1.4 kips/ft. The beam is reinforced with five No. 6 Grade 60 bars. The concrete strength is 10,000 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Using the effective moment of inertia, determine the immediate mid-span deflection of the beam due to the combined service loads (dead plus live).The effective moment of inertia Ie = 9,103.4 in.4.

A rectangular beam has a cross section of b = 14 in., h = 28…

A rectangular beam has a cross section of b = 14 in., h = 28 in., and d = 25.5 in. It is reinforced with two No. 7 Grade 60 bars. The concrete strength is 8,200 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the assumed modulus of elasticity of the concrete, Ec.