Blog

Force P = 41 N is applied to a lever at the end of a 32-mm-diameter shaft. Force Q = 865 N is applied directly to the shaft. Determine the magnitude of the shear stress τxy at point H. Let a = 125 mm and b = 205 mm.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 8 No. 6 bars at a depth of 16 in. The top row contains 5 No. 7 bars at a depth of 12.5 in. Determine the effective (centroidal) depth, d, of the steel.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 8 No. 6 bars at a depth of 20 in. The top row contains 5 No. 6 bars at a depth of 14 in. Determine the effective (centroidal) depth, d, of the steel.

A rectangular beam has a cross section of b = 16 in., h = 26 in., and d = 23.5 in. It is reinforced with two No. 6 Grade 60 bars. The concrete strength is 5,800 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the transformed cross-sectional area of the bars, Ast.

A simply supported beam with dimensions of b = 18 in., h = 26 in., d = 23.5 in., and L = 23 ft supports a uniform service (unfactored) dead load of 2.1875 kips/ft including its own self weight plus a uniform service (unfactored) live load of 1.5 kips/ft. The beam is reinforced with two No. 7 Grade 60 bars. The concrete strength is 9,100 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 = 5,684.4 in.4.

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 6 No. 8 bars at a depth of 22 in. The top row contains 2 No. 5 bars at a depth of 17 in. Determine the effective (centroidal) depth, d, of the steel.

Compute the maximum bar spacing, s, to control for cracks in a one-way slab with 2.1 in. of clear cover and f​y​ = 58 ksi.

Who is regarded as the “father of advertising art” and was the first American known to use illustrations in ads?

A rectangular beam has a cross section of b = 14 in., h = 30 in., and d = 27.5 in. It is reinforced with five No. 7 Grade 60 bars. The concrete strength is 2,500 psi (normal weight). The beam has Grade 60 No. 3 stirrups. Determine the cracking moment, Mcr.

A 34-year-old male with no past medical history presents to the office with two furuncles approximately 3.5cm in diameter on the left posterior thigh. The patient reports the lesions have been present for the past 4 days and have been increasing in size. He has no fever, chills or drainage from the lesions. On exam they are mildly erythematous and indurated. What is the best treatment plan for this patient?