Given: Area of steel column 25 in2
Given: Area of steel column 25 in2
Allowable stresses:
Steel = 20 ksi
Concrete = 3 ksi
Bearing between the 8"x 8" bearing plate and the concrete = 5 ksi
If P= 200 k, what is the Factor of Safety for the steel, the concrete and the bearing between the bearing plate and the concrete.
Homework Answers
Given a column that is 208 inches long, with a Cross sectional Area of 10 in2,...
Given a column that is 208 inches long, with a Cross sectional Area of 10 in2, and moments of inertia Ix = 300 in4 and Iy=177 in4, calculate the slenderness ratio. (answer to 2 decimal places) What is the required cross sectional area, A, of a short column loaded with a force P = 16 kips and an allowable stress, Fa= 21 ksi? (answer to one decimal point, in units of in2 - do not include units in your answer)
Given: A W14X109 column (A992 steel) requires a base plate (A36 steel) design. Assume the base...
Given: A W14X109 column (A992 steel) requires a base plate (A36 steel) design. Assume the base plate will be on the full area of concrete support. The dead load compression in the column is 320 kips and the live load compression in the column is 600 kips. The concrete support under the base plate has a 28-day strength of fc 5 ksi. Required: Design the base plate with the goal of minimizing the required thickness.
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...
UITVE 3) Column AB is made from a steel pipe filled with high strength concrete. The...
UITVE 3) Column AB is made from a steel pipe filled with high strength concrete. The pipe has an outer diameter of 10" and an inner diameter of 8". Determine the maximum allowable floor loadings, P. The steel and concrete strengths are 38 ksi and 5 ksi, respectively. The modulus of elasticity for high strength concrete is 42 x 10 ksi and for A-36 steel is 29 x 10'ksi :: 9 in. T in. 10 ft Section a-a Section a-a...
Mechanics of Materials i CE/AREN 2313 3. A steel plate in. thick is embedded in a...
Mechanics of Materials i CE/AREN 2313 3. A steel plate in. thick is embedded in a horizontal concrete slab and is used to anchor a high-strength vertical cable as shown. The diameter of the hole in the 16 plate is 7 in, the ultimate strength of the steel used is 36 ksi, and the ultimate bonding stress between plate and safety of F.S. 3.60 is desired when P 2.5 kips, determine concrete is 300 psi. Knowing that a factor of...
As shown, a pipe serves as a short column. The 4 - inch diameter steel pipe...
As shown, a pipe serves as a short column. The 4 - inch diameter steel pipe has 6 in x 6 in in steel plates welded to its ends.The top column plate carries a 5-1/8" wide wood beam that exerts an axial load on the column of 11,800 lbs., including the weight of the beam. The bottom plate bears on a concrete pad. The weight of the column is 53.5 lbs. Compressive stress in the steel must not exceed 20,000...
A steel rod with a cross-sectional area of 0.25 in2 is stretched between two fixed points....
A steel rod with a cross-sectional area of 0.25 in2 is stretched between two fixed points. The tensile force in the rod at 70 oF is 1,200 lb. Use α = 6.5 x 10-6/ oF and E = 29 x 106 psi. What will be the stress in ksi at 0 oF ? Use two decimal places.
i need clear and right solution pleaee. pleaes A steel plate of (0.5 in thickness) shown in the figure was fixed by four bolts of (0.5*13-UNC grade 4) to the vertical steel column of (0.6 in thick...
i need clear and right solution pleaee.
pleaes
A steel plate of (0.5 in thickness) shown in the figure was fixed by four bolts of (0.5*13-UNC grade 4) to the vertical steel column of (0.6 in thickness) as shown in figure below. An inclined eccentric force F of 10 kips was subjected to the plate at point A. Calculate: (a) The maximum stress in the rivets. (b) Check the safety factor if the plate and wall have a tensile strength...
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...
Member BCD is supported in the position shown using the 1/2 × 1/4 in2 rod AC...
Member BCD is supported in the position shown using the 1/2 ×
1/4 in2 rod AC and 1/4 in diameter pins at B, C&D. The ultimate
bearing stress for the pin at B is 5ksi, the ultimate shear stress
for the pin at B is 7 ksi and the ultimate normal stress for the
link AC is 12ksi. Assuming that the pins at A and C are strong and
a factor of safety of 3 is desired, determine
(a) The...
Given: A W14X109 column (A992 steel) requires a base plate (A36 steel) design. Assume the base plate will be on the full area of concrete support. The dead load compression in the column is 320 kips and the live load compression in the column is 600 kips. The concrete support under the base plate has a 28-day strength of fc 5 ksi. Required: Design the base plate with the goal of minimizing the required thickness.
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...
UITVE 3) Column AB is made from a steel pipe filled with high strength concrete. The pipe has an outer diameter of 10" and an inner diameter of 8". Determine the maximum allowable floor loadings, P. The steel and concrete strengths are 38 ksi and 5 ksi, respectively. The modulus of elasticity for high strength concrete is 42 x 10 ksi and for A-36 steel is 29 x 10'ksi :: 9 in. T in. 10 ft Section a-a Section a-a...
Mechanics of Materials i CE/AREN 2313 3. A steel plate in. thick is embedded in a horizontal concrete slab and is used to anchor a high-strength vertical cable as shown. The diameter of the hole in the 16 plate is 7 in, the ultimate strength of the steel used is 36 ksi, and the ultimate bonding stress between plate and safety of F.S. 3.60 is desired when P 2.5 kips, determine concrete is 300 psi. Knowing that a factor of...
i need clear and right solution pleaee.
pleaes
A steel plate of (0.5 in thickness) shown in the figure was fixed by four bolts of (0.5*13-UNC grade 4) to the vertical steel column of (0.6 in thickness) as shown in figure below. An inclined eccentric force F of 10 kips was subjected to the plate at point A. Calculate: (a) The maximum stress in the rivets. (b) Check the safety factor if the plate and wall have a tensile strength...
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...
Member BCD is supported in the position shown using the 1/2 ×
1/4 in2 rod AC and 1/4 in diameter pins at B, C&D. The ultimate
bearing stress for the pin at B is 5ksi, the ultimate shear stress
for the pin at B is 7 ksi and the ultimate normal stress for the
link AC is 12ksi. Assuming that the pins at A and C are strong and
a factor of safety of 3 is desired, determine
(a) The...
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