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The concrete post (Ec 3.6 x 10 psi and ac 5.5 x 10/F) is reinforced with...
The concrete post (Ec = 3.6 × 106 psi and αc = 5.5 × 10-6/°F) is...
The concrete post (Ec = 3.6 × 106
psi and αc = 5.5 × 10-6/°F) is
reinforced with six steel bars, each of 78-in.78-in. diameter
(Es = 29 × 106 psi and
αs = 6.5 × 10-6/°F). Determine the
normal stresses induced in the steel and in the concrete by a
temperature rise of 75°F.
The normal stress in the steel is _____ ksi.
The normal stress in the concrete is _____psi
6 ft 10 in. 10 in.
A 4-ft concrete post is reinforced with four steel Ex-29 x 106 psi and Ec- 3.6...
A 4-ft concrete post is reinforced with four steel Ex-29 x 106 psi and Ec- 3.6 x 106 psi determine the normal sterss in the steel and in the concentrete when a 150-kip axial cential force P is applied to the post bars, each with a in diameter Knowing that 4 ft s in in. Fig.P2.35
1. Reinforced Rectangular Concrete Beam The reinforced concrete beam shown is subjected to a bending moment...
1. Reinforced Rectangular Concrete Beam The reinforced concrete beam shown is subjected to a bending moment of 200 kip ft. Knowing that the modulus of elasticity for the concrete and the steel are respectively Ec= 3.75 X 10 psi and Es = 30 x 10 psi, determine the tensile stress in [ksh] that develops in the steel bars. 20 in 1 in diameter 72.5 in 12 in-
In the following reinforced concrete beam, bending moment is 150kip-ft and Ec = 3.75x10^6psi Es =...
In the following reinforced concrete beam, bending moment is
150kip-ft and Ec = 3.75x10^6psi Es = 30x10^6psi determine (a) the
stress in the steel (b) the madimum stress in the concrete
This is what I've done so far. I think the next step is to
calculate the distance of neutral axis from the bottom section
which should end up in a quadratic equation to solve for x.
Q4) In the following reinforced concrete beam, bending moment is 150kip-ft and E=3.75x10°Es=30x10ʻpsi...
326 СНАРТER 6 BENDING EXAMPLE 6.18 The reinforced concrete beam has the cross-sectional area shown in Fig. 6-39a. If it...
326 СНАРТER 6 BENDING EXAMPLE 6.18 The reinforced concrete beam has the cross-sectional area shown in Fig. 6-39a. If it is subjected to a bending moment of M = 60 kip ft determine the normal stress in each of the steel reinforcing rods and the maximum normal stress in the concrete. Take Est = 29(10) ksi and Econc = 3.6(103) ksi SOLUTION Since the beam is made of concrete, in the following analysis we will neglect its strength in supporting...
Question 35 300 mm 18 in 4.5 ft 60 mm 40 mm Fig. P2.33 2.34 For...
Question 35
300 mm 18 in 4.5 ft 60 mm 40 mm Fig. P2.33 2.34 For the composite block shown in Prob. 2.33, determine (a) the value of h if the portion of the load carried by the aluminum plates is half the portion of the load carried by the brass core, (b) the total load if the stress in the brass is 80 MPa Fig. P2.35 2.35 The 4.5-ft concrete post is reinforced with six steel bars, each with...
Strength of materials An 8 inch by 8 inch reinforced concrete bar needs to be designed to carry ...
strength of materials An 8 inch by 8 inch reinforced concrete bar needs to be designed to carry a comprehensive acial force of 235,000 pounds. Assume the normal stress in concrete to be a uniform maximum of 3 ksi and the normal stress in stell bars to be 20 ksi, determine the minimum number of 0.25” diameter steel bars needed
The column shown is made by filling a steel pipe with concrete. The concrete has an...
The column shown is made by filling a steel pipe with concrete. The concrete has an Elastic Modulus of Ec-3.800ks1 and a cross-sectional area of Ac-80 in2 the steel pipe has an Elastic Modulus of Est 29,000 ksi and a cross- sectional area of Ag-11 in2. If the column has a length of L = 10 ft and is subjected to a load of P 280 kip, what is the stress in the concrete? Express your answer in psi, to...
Question #2 (20 points) A (a) A Composite column made of reinforced concrete was constructed on...
Question #2 (20 points) A (a) A Composite column made of reinforced concrete was constructed on a very rigid foundation. The column was constructed at 25 °C and in this temperature, there was no stress in the system. The column is exposed to axial loading (or stress) of 2000 psi as shown in the picture. The column has a thickness of 8 in, a width of 3 in, and a length of 13 ft. Six #6 longitudinal bars (each has...
Reinforced concrete Problem #1 (40 points): A beam with x-section shown in the figure is made...
Reinforced concrete
Problem #1 (40 points): A beam with x-section shown in the figure is made out of concrete with compressive strength fc = 4000 psi and the steel reinfrocemnt is of Grade 60 (fy 60000psi). Determine 1 The maximum compressive stress in the concrete f and the tensils stress in the steel , if the section is subjected to a bending moment of 130 ft-k (assume n 8) N.A._ 23" 23-х 4 #10 (5.06 in. 3" 18"
The concrete post (Ec = 3.6 × 106
psi and αc = 5.5 × 10-6/°F) is
reinforced with six steel bars, each of 78-in.78-in. diameter
(Es = 29 × 106 psi and
αs = 6.5 × 10-6/°F). Determine the
normal stresses induced in the steel and in the concrete by a
temperature rise of 75°F.
The normal stress in the steel is _____ ksi.
The normal stress in the concrete is _____psi
6 ft 10 in. 10 in.
A 4-ft concrete post is reinforced with four steel Ex-29 x 106 psi and Ec- 3.6 x 106 psi determine the normal sterss in the steel and in the concentrete when a 150-kip axial cential force P is applied to the post bars, each with a in diameter Knowing that 4 ft s in in. Fig.P2.35
1. Reinforced Rectangular Concrete Beam The reinforced concrete beam shown is subjected to a bending moment of 200 kip ft. Knowing that the modulus of elasticity for the concrete and the steel are respectively Ec= 3.75 X 10 psi and Es = 30 x 10 psi, determine the tensile stress in [ksh] that develops in the steel bars. 20 in 1 in diameter 72.5 in 12 in-
In the following reinforced concrete beam, bending moment is
150kip-ft and Ec = 3.75x10^6psi Es = 30x10^6psi determine (a) the
stress in the steel (b) the madimum stress in the concrete
This is what I've done so far. I think the next step is to
calculate the distance of neutral axis from the bottom section
which should end up in a quadratic equation to solve for x.
Q4) In the following reinforced concrete beam, bending moment is 150kip-ft and E=3.75x10°Es=30x10ʻpsi...
326 СНАРТER 6 BENDING EXAMPLE 6.18 The reinforced concrete beam has the cross-sectional area shown in Fig. 6-39a. If it is subjected to a bending moment of M = 60 kip ft determine the normal stress in each of the steel reinforcing rods and the maximum normal stress in the concrete. Take Est = 29(10) ksi and Econc = 3.6(103) ksi SOLUTION Since the beam is made of concrete, in the following analysis we will neglect its strength in supporting...
Question 35
300 mm 18 in 4.5 ft 60 mm 40 mm Fig. P2.33 2.34 For the composite block shown in Prob. 2.33, determine (a) the value of h if the portion of the load carried by the aluminum plates is half the portion of the load carried by the brass core, (b) the total load if the stress in the brass is 80 MPa Fig. P2.35 2.35 The 4.5-ft concrete post is reinforced with six steel bars, each with...
The column shown is made by filling a steel pipe with concrete. The concrete has an Elastic Modulus of Ec-3.800ks1 and a cross-sectional area of Ac-80 in2 the steel pipe has an Elastic Modulus of Est 29,000 ksi and a cross- sectional area of Ag-11 in2. If the column has a length of L = 10 ft and is subjected to a load of P 280 kip, what is the stress in the concrete? Express your answer in psi, to...
Question #2 (20 points) A (a) A Composite column made of reinforced concrete was constructed on a very rigid foundation. The column was constructed at 25 °C and in this temperature, there was no stress in the system. The column is exposed to axial loading (or stress) of 2000 psi as shown in the picture. The column has a thickness of 8 in, a width of 3 in, and a length of 13 ft. Six #6 longitudinal bars (each has...
Reinforced concrete
Problem #1 (40 points): A beam with x-section shown in the figure is made out of concrete with compressive strength fc = 4000 psi and the steel reinfrocemnt is of Grade 60 (fy 60000psi). Determine 1 The maximum compressive stress in the concrete f and the tensils stress in the steel , if the section is subjected to a bending moment of 130 ft-k (assume n 8) N.A._ 23" 23-х 4 #10 (5.06 in. 3" 18"
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