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Problem 1 A composité beam made of concrete (c) and six steel Steel bars (s) bars...
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...
A system of bars consists of a steel bar (AB) and an aluminum bar (BC). Bar...
A system of bars consists of a steel bar (AB) and an aluminum
bar (BC). Bar AB has a cross-section of 2 inches by 0.75 inches and
has a modulus of elasticity of 29000 ksi and a coefficient of
thermal expansion of 6.5X10-6 /F. Bar BC has a
cross-section of 3 inches by 0.75 inches and has a modulus of
elasticity of 10600 ksi and a coefficient of thermal expansion of
12.8X10-6 /F. A gap of 0.03 inches exists between...
3 3. (25 pts.) A system of bars consists of a steel bar (AB) and an...
3 3. (25 pts.) A system of bars consists of a steel bar (AB) and an aluminum bar (BC). Bar AB has a cross-section of 2 inches by 0.75 inches and has a modulus of elasticity of 29000 ksi and a coefficient of thermal expansion of 6.5x10-6 /F. Bar BC has a cross-section of 3 inches by 0.75 inches and has a modulus of elasticity of 10600 ksi and a coefficient of thermal expansion of 12.8x106/F. A gap of 0.03...
Bars A and B in the mechanism shown are made of steel with a modulus of...
Bars A and B in the mechanism shown are made of steel with a modulus of elasticity E = 200 GPa, a cross-sectional area of A = 100 mm?, and a length L = 2.5 m. The applied force F = 10 kN. (a) Write the equations of equilibrium for the horizontal bar. (b) Determine the forces in bars A and B. (c) Find the axial stress in bars A and B. to 2.0 m 3.0 m ** 1.5 m...
HELP! Problem 6 Development Length (30 pts.) The required reinforcement steel area "As" for the lightweight reinforced concrete beam of figure 3 is 2.88 si. The No. 8 top bars are uncoated. C...
HELP!
Problem 6 Development Length (30 pts.) The required reinforcement steel area "As" for the lightweight reinforced concrete beam of figure 3 is 2.88 si. The No. 8 top bars are uncoated. Compute the development length (d), İffy 60,000 psi and fc 3.500 psi. a) Use the simplified equation Table 8-1) b) Use the ACI Equation 25.4.2.3a (Equation 8-10) c) Use the ACI Equation 25.4.2.3a with Ktr 0 (Equation 8-10) 18 3" 3@4 123 3" 448 bars 3.14 in2 26...
The rigid beam in (Figure 1) is supported by the three suspender bars. Bars AB and EF are made of aluminum and bar CD is made of steel.
The rigid beam in (Figure 1) is supported by the three suspender bars. Bars AB and EF are made of aluminum and bar CD is made of steel. Part A If each bar has a cross-sectional area of \(480 \mathrm{~mm}^{2}\), determine the maximum value of \(P\) if the allowable stress is \(\left(\sigma_{\text {allow }}\right)_{\text {st }}-190 \mathrm{MPa}\) far the steel and \(\left(\sigma_{\text {allow }}\right)_{\text {al }}-150 \mathrm{MPa}\) for the aluminum. \(E_{\text {st }}-200 \mathrm{GPa}, E_{\text {al }}-70 \mathrm{GPa}\).
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...
a hundred random draw with replacement are taken from box A reinforced concrete beam has square cross section (h x h) h- 280mm. There are 6 steel reinforcing bars (each of diameter d-25mm), 3 e...
a hundred random draw with replacement are taken from
box
A reinforced concrete beam has square cross section (h x h) h- 280mm. There are 6 steel reinforcing bars (each of diameter d-25mm), 3 evenly spaced towards the top, and 3 evenly spaced towards the bottom. The vertical distance from the center of the bar to top (or bottom) edge of the section is called the cover, and is denoted as e 45mm. It should be taken that psteel-7850 kg/m3,...
10 pts Question 17 Two bars, A and Beach of length 2.3m and cross-sectional area 1.4...
10 pts Question 17 Two bars, A and Beach of length 2.3m and cross-sectional area 1.4 m., are placed end to end as shown in the figure. The thermal conductivities of the bars are 450 W/mK) and 905 l/s.m.K), respectively. The left end of bar Ais maintained at 373 Kwhile the right end of Bis maintained at 273 K. What is the temperature at the interface between A and B? Please round your answer to the nearest whole number B...
Problem 1 The truss (all joints are pinned) structure in figure 1 is made of members with cross s...
We were unable to transcribe this imageProblem 1 The truss (all joints are pinned) structure in figure 1 is made of members with cross sectional area A = 1 in, with a linear elastic, homogeneous, isotropic material with an elastic modulus. E-10E6 psi and a coefficient of thermal expansion, α-6E-6 °F-ι. The structure starts out at a uniform temperature of 65°F and is raised to a final temperature of 120°F while being subjected to a concentrated load Po- 5,000 lbs...
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...
A system of bars consists of a steel bar (AB) and an aluminum
bar (BC). Bar AB has a cross-section of 2 inches by 0.75 inches and
has a modulus of elasticity of 29000 ksi and a coefficient of
thermal expansion of 6.5X10-6 /F. Bar BC has a
cross-section of 3 inches by 0.75 inches and has a modulus of
elasticity of 10600 ksi and a coefficient of thermal expansion of
12.8X10-6 /F. A gap of 0.03 inches exists between...
3 3. (25 pts.) A system of bars consists of a steel bar (AB) and an aluminum bar (BC). Bar AB has a cross-section of 2 inches by 0.75 inches and has a modulus of elasticity of 29000 ksi and a coefficient of thermal expansion of 6.5x10-6 /F. Bar BC has a cross-section of 3 inches by 0.75 inches and has a modulus of elasticity of 10600 ksi and a coefficient of thermal expansion of 12.8x106/F. A gap of 0.03...
Bars A and B in the mechanism shown are made of steel with a modulus of elasticity E = 200 GPa, a cross-sectional area of A = 100 mm?, and a length L = 2.5 m. The applied force F = 10 kN. (a) Write the equations of equilibrium for the horizontal bar. (b) Determine the forces in bars A and B. (c) Find the axial stress in bars A and B. to 2.0 m 3.0 m ** 1.5 m...
HELP!
Problem 6 Development Length (30 pts.) The required reinforcement steel area "As" for the lightweight reinforced concrete beam of figure 3 is 2.88 si. The No. 8 top bars are uncoated. Compute the development length (d), İffy 60,000 psi and fc 3.500 psi. a) Use the simplified equation Table 8-1) b) Use the ACI Equation 25.4.2.3a (Equation 8-10) c) Use the ACI Equation 25.4.2.3a with Ktr 0 (Equation 8-10) 18 3" 3@4 123 3" 448 bars 3.14 in2 26...
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...
a hundred random draw with replacement are taken from
box
A reinforced concrete beam has square cross section (h x h) h- 280mm. There are 6 steel reinforcing bars (each of diameter d-25mm), 3 evenly spaced towards the top, and 3 evenly spaced towards the bottom. The vertical distance from the center of the bar to top (or bottom) edge of the section is called the cover, and is denoted as e 45mm. It should be taken that psteel-7850 kg/m3,...
10 pts Question 17 Two bars, A and Beach of length 2.3m and cross-sectional area 1.4 m., are placed end to end as shown in the figure. The thermal conductivities of the bars are 450 W/mK) and 905 l/s.m.K), respectively. The left end of bar Ais maintained at 373 Kwhile the right end of Bis maintained at 273 K. What is the temperature at the interface between A and B? Please round your answer to the nearest whole number B...
We were unable to transcribe this imageProblem 1 The truss (all joints are pinned) structure in figure 1 is made of members with cross sectional area A = 1 in, with a linear elastic, homogeneous, isotropic material with an elastic modulus. E-10E6 psi and a coefficient of thermal expansion, α-6E-6 °F-ι. The structure starts out at a uniform temperature of 65°F and is raised to a final temperature of 120°F while being subjected to a concentrated load Po- 5,000 lbs...
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