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of elasticity (E.) Per ACI 318-14 code, determine the modulus of rupture (f) and modulus of...
Following the requirements of the ACI 318-14 Standards and the information provided below determine the maximum...
Following the requirements of the ACI 318-14 Standards and the information provided below determine the maximum shear load capacity. -Rectangular reinforced concrete beam (Width = 12", Depth = 24") -Concrete Compressive Strength is 7 Ksi -Reinforcement: 3 #8 bars at 2.5" from bottom surface, #3 stirrups at 8" throughout the length of the beam -Normal weight concrete
please solve completely and correctly, I will give thumbs up! Force Method. The reinforced concrete beam as sh...
please solve completely and correctly, I will give thumbs
up!
Force Method. The reinforced concrete beam as shown in “Figure 1" has a constant cross sectional dimension of 10" x 12" (b x h). The unit weight of the concrete is 150 lb/ft3. The 28-day concrete compressive strength of the beam is = 4000 psi. Use the classical force method to analyze the indeterminate beam under the applied dead load only. Assume the following values of span length: L1 =...
Determine if the beam shown in the figure is adequate as governed by the ACI Code (318-11). The l...
Determine if the beam shown in the figure is adequate as
governed by the ACI
Code (318-11). The loads shown are service loads. The uniformly
distributed load is DL =
0.65 + 0.F = _________ kip/ft, LL = 0.55 + 0.E = ________
kip/ft. The dead load excludes
the beam weight. The point load is a live load. f’c = 3,000 psi,
fy = 40,000 psi.
Assume that all variables A,B,C,D,E,F,G are 3.5
kips (LL) 20A"= 20 + D= -...
Problem 2 (PCC) For the corrosion protection of reinforcement in a reinforced concrete structure exposed to...
Problem 2 (PCC) For the corrosion protection of reinforcement in a reinforced concrete structure exposed to seawater, the minimum specified compressive strength (fe) is 30 MPa a) Determine the required average compressive strength (f) for the mix design if the mixing plant has a standard deviation (s) obtained from 20 test samples 3.9 MPa. b) Using the ACI code equation (Equation 7.3 pp 316), estimate the modulus of elasticity of the concrete given the required compressive strength. c) Based on...
Stress-strain curve represents the result of 6" x 12" concrete cylinders tested in compression. From the...
Stress-strain curve represents the result of 6" x 12" concrete cylinders tested in compression. From the results determine, • The approximate load causing the specified strength of the concrete • The tensile strength of the concrete per ACI 318-14 • The modulus of elasticity of concrete, based on: a. The appropriate ACI 318-14 expression b. the ACI 318-14's Secant approach 6 5 4 Stress, ksi 3 1 O 0.001 0.003 0.004 0.002 Strain
Name: Total__/25 Follow ACI 318-19 to answer the following questions: Problem #1 (6 points) Determine the...
Name: Total__/25 Follow ACI 318-19 to answer the following questions: Problem #1 (6 points) Determine the following for the beam cross section shown below. Assume f = 4,500 psi, fy = 60,000 psi . Clear cover =1.5 in. Bars are coated b #4 stirrups h d ::: 25 in 2.5 in Cross section b=14 in h=18 in d = 14.75 in As = 3.6 in ( 67) Ye Co= K,= 1 (The required development length of the tension bars) =...
. Describe the response of concrete subjected to cyclic loading with the help of a graph. (Note: ...
. Describe the response of concrete subjected to cyclic loading with the help of a graph. (Note: Please plot a graph and then describe the effect of cyclic loading on strength and modulus of elasticity of concrete. You will not get credit if you cut and paste the graph from class notes). 2. Discuss why testing of concrete for direct tensile strength is difficult to achieve. What indirect test methods have been developed to assess the tensile strength of concrete?...
An article in the ACI Materials Journal (Vol. 84, 1987, pp. 213-216) describes several experiments investigating...
An article in the ACI Materials Journal (Vol. 84, 1987, pp. 213-216) describes several experiments investigating the rodding of concrete to remove trapped air. A 3-inch x 6-inch cylinder was used, and the number of times this rod was used is the design variable. The resulting compressive strength of the concrete specimen is the response. The data are shown in the following table. Compressive Strength (psi) Rodding Level Observations 10 1530 1530 1440 15 1610 1650 1500 20 1560 1730...
13.2.7 An article in the ACI Materials Journal (Vol. 84, 1987, pp. 213-216) describes several experiments...
13.2.7 An article in the ACI Materials Journal (Vol. 84, 1987, pp. 213-216) describes several experiments investigating the rodding of concrete to remove trapped air. A 3-inch x 6-inch cylinder was used, and the number of times this rod was used is the design variable. The resulting compressive strength of the concrete specimen is the response. The data are shown in the following table. Rodding Level Compressive Strength (psi) Observations 10 1530 1530 1440 15 1610 1650 1500 20 1560...
The rod ABCD is made of an aluminum alloy with a modulus of elasticity E = 70 GPa
The rod ABCD is made of an aluminum alloy with a modulus of elasticity E = 70 GPa. For the loading shown, and neglecting the weight of the rod, determine the stress in sections AB, BC, and CD and the deflection of point D. For stress, answer to nearest whole number. Use 3 decimal places for displacement. Drawing is not to scale. Assume compressive stresses are positive, and that displacement to the right is positive. Stress in AB = _______ MPa Stress...
please solve completely and correctly, I will give thumbs
up!
Force Method. The reinforced concrete beam as shown in “Figure 1" has a constant cross sectional dimension of 10" x 12" (b x h). The unit weight of the concrete is 150 lb/ft3. The 28-day concrete compressive strength of the beam is = 4000 psi. Use the classical force method to analyze the indeterminate beam under the applied dead load only. Assume the following values of span length: L1 =...
Determine if the beam shown in the figure is adequate as
governed by the ACI
Code (318-11). The loads shown are service loads. The uniformly
distributed load is DL =
0.65 + 0.F = _________ kip/ft, LL = 0.55 + 0.E = ________
kip/ft. The dead load excludes
the beam weight. The point load is a live load. f’c = 3,000 psi,
fy = 40,000 psi.
Assume that all variables A,B,C,D,E,F,G are 3.5
kips (LL) 20A"= 20 + D= -...
Problem 2 (PCC) For the corrosion protection of reinforcement in a reinforced concrete structure exposed to seawater, the minimum specified compressive strength (fe) is 30 MPa a) Determine the required average compressive strength (f) for the mix design if the mixing plant has a standard deviation (s) obtained from 20 test samples 3.9 MPa. b) Using the ACI code equation (Equation 7.3 pp 316), estimate the modulus of elasticity of the concrete given the required compressive strength. c) Based on...
Stress-strain curve represents the result of 6" x 12" concrete cylinders tested in compression. From the results determine, • The approximate load causing the specified strength of the concrete • The tensile strength of the concrete per ACI 318-14 • The modulus of elasticity of concrete, based on: a. The appropriate ACI 318-14 expression b. the ACI 318-14's Secant approach 6 5 4 Stress, ksi 3 1 O 0.001 0.003 0.004 0.002 Strain
Name: Total__/25 Follow ACI 318-19 to answer the following questions: Problem #1 (6 points) Determine the following for the beam cross section shown below. Assume f = 4,500 psi, fy = 60,000 psi . Clear cover =1.5 in. Bars are coated b #4 stirrups h d ::: 25 in 2.5 in Cross section b=14 in h=18 in d = 14.75 in As = 3.6 in ( 67) Ye Co= K,= 1 (The required development length of the tension bars) =...
. Describe the response of concrete subjected to cyclic loading with the help of a graph. (Note: Please plot a graph and then describe the effect of cyclic loading on strength and modulus of elasticity of concrete. You will not get credit if you cut and paste the graph from class notes). 2. Discuss why testing of concrete for direct tensile strength is difficult to achieve. What indirect test methods have been developed to assess the tensile strength of concrete?...
An article in the ACI Materials Journal (Vol. 84, 1987, pp. 213-216) describes several experiments investigating the rodding of concrete to remove trapped air. A 3-inch x 6-inch cylinder was used, and the number of times this rod was used is the design variable. The resulting compressive strength of the concrete specimen is the response. The data are shown in the following table. Compressive Strength (psi) Rodding Level Observations 10 1530 1530 1440 15 1610 1650 1500 20 1560 1730...
13.2.7 An article in the ACI Materials Journal (Vol. 84, 1987, pp. 213-216) describes several experiments investigating the rodding of concrete to remove trapped air. A 3-inch x 6-inch cylinder was used, and the number of times this rod was used is the design variable. The resulting compressive strength of the concrete specimen is the response. The data are shown in the following table. Rodding Level Compressive Strength (psi) Observations 10 1530 1530 1440 15 1610 1650 1500 20 1560...
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