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Problem 2. Estimate the tensile strength required to prevent cracking in a concrete- material that is...
. 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?...
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)...
1. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m...
1. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length increases to 2.01 m. What is the Poisson's Ratio of this material? 2. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length...
Grid 4 Grid 3 Po 15 in Grid 1 Grid 2 10 in Figure 1: Problem...
Grid 4 Grid 3 Po 15 in Grid 1 Grid 2 10 in Figure 1: Problem 1 Schematic Problem 1 The truss (all joints are pinned) structure in figure 1 is made of members with cross sectional area A- 1 in2, with a linear elastic, homogeneous, isotropic material with an elastic modulus, E, 10E6 psi and a coefficient of thermal expansion. α-6E-6 op-1. The structure starts out at a uniform temperature of 65°F and is raised to a final temperature...
i need help in problem 3.6 which is the first picture. the other 2 pictures are...
i need help in problem 3.6 which is the first picture.
the other 2 pictures are the equations that i need.
opened read only to prevent modification incompressibly, which because of the large strains cannot be accoun for via v = ). If the original length is L and the current length is /, volu conservation requires LA,=IA - A=A.(L/I) assuming uniform str and strain. Hence, 0x = A 4 = AS where A=1/L is a stretch ratio and is...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
. 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?...
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)...
1. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length increases to 2.01 m. What is the Poisson's Ratio of this material? 2. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length...
Grid 4 Grid 3 Po 15 in Grid 1 Grid 2 10 in Figure 1: Problem 1 Schematic Problem 1 The truss (all joints are pinned) structure in figure 1 is made of members with cross sectional area A- 1 in2, with a linear elastic, homogeneous, isotropic material with an elastic modulus, E, 10E6 psi and a coefficient of thermal expansion. α-6E-6 op-1. The structure starts out at a uniform temperature of 65°F and is raised to a final temperature...
i need help in problem 3.6 which is the first picture.
the other 2 pictures are the equations that i need.
opened read only to prevent modification incompressibly, which because of the large strains cannot be accoun for via v = ). If the original length is L and the current length is /, volu conservation requires LA,=IA - A=A.(L/I) assuming uniform str and strain. Hence, 0x = A 4 = AS where A=1/L is a stretch ratio and is...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
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