According to the theory of flexure for reinforced concrete, the strain in the reinforcement is _______ the strain in the concrete at the same level.
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The elastic beam theory is used in the design of reinforced…
The elastic beam theory is used in the design of reinforced concrete beams.
A tension-controlled section has a tension-reinforcement are…
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 0.005.
Cantilever beams loaded with only gravity loads develop posi…
Cantilever beams loaded with only gravity loads develop positive bending moments throughout the span.
Elasticity is the name given to a sample’s ability to deform…
Elasticity is the name given to a sample’s ability to deform beyond its yield point without a significant loss of strength.
Flexural stiffness is inversely related to span length. Ther…
Flexural stiffness is inversely related to span length. Therefore, slab panels are much stiffer in their shorter span direction than in the longer span direction.
Determine As,min for the following beam given that f’c = 8,7…
Determine As,min for the following beam given that f’c = 8,750 psi and fy = 60,000 psi.
Concrete forms should generally be chosen to allow for minim…
Concrete forms should generally be chosen to allow for minimum reuse of the forms.
In an under-reinforced beam loaded in bending beyond its ela…
In an under-reinforced beam loaded in bending beyond its elastic range, the tension zone steel will yield before the concrete in the compression zone reaches its max useable strain.
A beam has dimensions of b = 18 in., h = 30 in., and d = 27….
A beam has dimensions of b = 18 in., h = 30 in., and d = 27.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 7,300 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 2.352706 in., determine the strain in the reinforcement.