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A beam has dimensions of b = 16 in., h = 24 in., and d = 21.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 3,700 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 4.208361 in., determine the strain in the reinforcement.

The compressive and tensile forces act through the centroid of their respective stress blocks.

The atomic number of an atom is 82 and its mass number is 207. Determine its:   1.Number of electrons 2.Number of protons 3.Number of neutrons 4.The charge of its ion

Which symbol represents the cross-sectional area of the reinforcement near the tension face of a reinforced concrete beam?

A beam has dimensions of b = 14 in., h = 24 in., and d = 21.5 in. and is reinforced with 3 No. 8 bars. The concrete strength is 8,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 2.089087 in., determine the strain in the reinforcement.

A tension-controlled section has a tension-reinforcement area such that when the beam reaches its nominal flexural strength, the net tensile strain in the extreme layer of tensile steel is greater than or equal to 0.003.

Give the chemical formulas for the following compounds:                                                       manganese(IV) carbonate Potassium phosphate Magnesium hydroxide Calcium nitrite

A beam has dimensions of b = 18 in., h = 22 in., and d = 19.5 in. and is reinforced with 3 No. 6 bars. The concrete strength is 3,400 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the depth to the neutral axis, c.

One of the four primary reasons for using compression reinforcement in beams is increased fatigue life.

A beam has dimensions of b = 14 in., h = 28 in., and d = 25.5 in. and is reinforced with 3 No. 6 bars. The concrete strength is 7,300 psi, and the yield strength of the reinforcement is 60,000 psi. Determine the nominal moment capacity, Mn, of the beam.