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
Homework Answers
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 x 10 psi and ac 5.5 x 10/F) is reinforced with six steel bars, each of-in. diameter (Es= 29 x 10 psi and as 6.5 x 10/F). Determine the normal stresses induced in the steel and in the concrete by a temperature rise of 60°F. 6 ft 10 in 10 in The normal stress in the steel is ksi. psi The normal stress in the concrete is
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...
Please answer all question, it’s one question but was devised into 3 sections. Thanks! 5. For...
Please answer all question, it’s one question but was devised
into 3 sections. Thanks!
5. For a reinforced concrete beam,if the reinforcing steel has a yield strength of so si andthe whatis the modular ratio? the re of 50 ksi and the 6. For the reinforced concrete beam shown below, what is the stress in the concrete and in the ular (10 pts) ght concrete has Ec reinforcing steel for the given bending moment and material properties using the rectang...
A 1.2 m concrete column is reinforced by four steel bars, each 20 mm in diameter, as indicated. It is known that for ste...
A
1.2 m concrete column is reinforced by four steel bars, each 20 mm
in diameter, as indicated. It is known that for steel E = 200 GPa
and α = 11.7 (10-6) / ° C and for concrete E = 25 GPa and α = 9.9
(10-6) / ° C brass tube 300 mm in length, 30 mm outside diameter
and 3 mm wall thickness, is fixed in a hand-operated lathe which is
adjusted in such a way as...
Problem 1 A composité beam made of concrete (c) and six steel Steel bars (s) bars...
Problem 1 A composité beam made of concrete (c) and six steel Steel bars (s) bars is shown below. The steel bars run through the concrete from the top to bottom and have the same length as the concrete block. Each steel bar has a diameter of in. Calculate the cross- sectional area of the concrete and the area of all the steel bars. If the temperature rises by AT 65 °F, determine the normal stress in the steel bars....
Cracking Moment (Uncracked Concrete Stage) Problem 1) Problem 2.6 (page 55, McCormac and Brown, gth Ed.)...
Cracking Moment (Uncracked Concrete Stage) Problem 1) Problem 2.6 (page 55, McCormac and Brown, gth Ed.) Note: Modify the total depth of the beam from 24" to 26" and the depth of the steel rebars from 21" to 23". Transformed Area Method (Concrete Cracked- Elastic Stresses Stage) Problem 2) Problem 2.13 (page 56, McCormac and Brown, 8th Ed.) Note: Make the following changes: Change fe to 5 ksi use the values and dimensions shown in the figure below 1) 2)...
The concrete post (Ec 3.6 x 10 psi and ac 5.5 x 10/F) is reinforced with six steel bars, each of-in. diameter (Es= 29 x 10 psi and as 6.5 x 10/F). Determine the normal stresses induced in the steel and in the concrete by a temperature rise of 60°F. 6 ft 10 in 10 in The normal stress in the steel is ksi. psi The normal stress in the concrete is
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...
Please answer all question, it’s one question but was devised
into 3 sections. Thanks!
5. For a reinforced concrete beam,if the reinforcing steel has a yield strength of so si andthe whatis the modular ratio? the re of 50 ksi and the 6. For the reinforced concrete beam shown below, what is the stress in the concrete and in the ular (10 pts) ght concrete has Ec reinforcing steel for the given bending moment and material properties using the rectang...
A
1.2 m concrete column is reinforced by four steel bars, each 20 mm
in diameter, as indicated. It is known that for steel E = 200 GPa
and α = 11.7 (10-6) / ° C and for concrete E = 25 GPa and α = 9.9
(10-6) / ° C brass tube 300 mm in length, 30 mm outside diameter
and 3 mm wall thickness, is fixed in a hand-operated lathe which is
adjusted in such a way as...
Problem 1 A composité beam made of concrete (c) and six steel Steel bars (s) bars is shown below. The steel bars run through the concrete from the top to bottom and have the same length as the concrete block. Each steel bar has a diameter of in. Calculate the cross- sectional area of the concrete and the area of all the steel bars. If the temperature rises by AT 65 °F, determine the normal stress in the steel bars....
Cracking Moment (Uncracked Concrete Stage) Problem 1) Problem 2.6 (page 55, McCormac and Brown, gth Ed.) Note: Modify the total depth of the beam from 24" to 26" and the depth of the steel rebars from 21" to 23". Transformed Area Method (Concrete Cracked- Elastic Stresses Stage) Problem 2) Problem 2.13 (page 56, McCormac and Brown, 8th Ed.) Note: Make the following changes: Change fe to 5 ksi use the values and dimensions shown in the figure below 1) 2)...
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