Homework Answers
Part A The column is constructed from high-strength concrete and eight A992 steel reinforcing rods. The...
Part A The column is constructed from high-strength concrete and eight A992 steel reinforcing rods. The column is subjected to an axial force of P 190 kip Each rod has a diameter of 1 in. For A992 steel Et 29.0(103) ksi, and for high-strength concrete Ee 4.20(10) ksi (Figure 1) Determine the average normal stress in the concrete and in each rod Express your answer to three significant figures and include appropriate units o,o.-1 Value Units | Submit Part B...
Problem 6 A 24-ft long steel column has an S 8 x 23 section, with the...
Problem 6 A 24-ft long steel column has an S 8 x 23 section, with the cross-sectional properties: 1. = 64.7 in", I, = 4.27 in", and A = 6.76 in”, that is built-in at both ends. The midpoint of the column is braced by two cables that prevent displacement in the c direction. For a factor of safety against buckling of X = 2.5, determine the largest compressive axial load, Pmax. Use the material properties E = 29. 103...
Select the most economic A992 (Fy=50 ksi) W shape to use as a column for the...
Select the most economic A992 (Fy=50 ksi) W shape to use as a column for the following conditions. Axial dead load of 75 kips, axial live load of 75 kips, length of the column is 12 ft, with no intermediate bracing, pinned top and bottom 2, 3. Use table 10.6 to answer the following questions about A36 double angle compression struts, pinned at both ends. A double-angle compression member 8 ft long is composed of two A36 4x3x5/16 steel angles....
A steel tool link in a forging machine is connected at its ends as shown. Determine...
A steel tool link in a forging machine is connected at its ends as shown. Determine the maximum load P it can carry without buckling. Use a factor of safety with respect to buckling of F.S.-1.75 Note from the figure on the left that the ends are pinned for buckling, whereas from the figure on the right the ends are fixed. E steel = 29 x 103 ksi and σ,-100 ksi -1.5in. -0.5 in 24 in.
Column #1: Questions 1-3 Column #2: Question 4 Column #3: Question 5 16 ft 8 ft...
Column #1: Questions 1-3 Column #2: Question 4 Column #3: Question 5 16 ft 8 ft Section W8x31 (A992) 10 ft | £ Section Hem-Fir (3x4) Section 2" diameter (A36) 1 Ends: Pin-Pin Mtrl: A36 Steel Section: W8x31 Length: 16 feet Ends: Fix-Fix Mtrl: Hem-Fir Section: 3x4 Length: 10 feet Ends: Fix-Pin Mtrl: A36 Steel Section: 2" diameter Length: 8 feet For all questions, assume that Euler's equation always applies, i.e. assume that P. is always less than the material's...
Ideal Column with Pin Supports Learning Goal: To use the formula for the critical load, i.e.,...
Ideal Column with Pin Supports Learning Goal: To use the formula for the critical load, i.e., the Euler buckling load, for pin-supported columns to calculate various parameters of columns. Ideally, a column that is perfectly straight and has an axial load applied exactly at the centroid of its cross section will not yield until the internal normal stress reaches the yield stress of the material. Real-world columns, however, are subject to small asymmetries, whether due to irregularities of shape or...
Problem 3 (25 pts.) A W10x49 section of A992, Grade 50 steel, is used as a...
Problem 3 (25 pts.) A W10x49 section of A992, Grade 50 steel, is used as a steel column with a total unbraced height of 11 ft. The column ends are both pinned. Determine the axial LRFD and ASD that this column can support.
Part A - Maximum load A column is made from a rectangular bar whose cross section...
Part A - Maximum load A column is made from a rectangular bar whose cross section is 5.1 cm by 8.9 cm . If the height of the column is 2 m , what is the maximum load it can support? The material has E = 200 GPa and σY = 250 MPa . Express your answer with appropriate units to three significant figures. Pmax = ?? Part B - Maximum length A circular column with diameter 9.4 cm is...
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...
2. Design Wide flange column section only of A992 steel to serve as a pinned- end main member column 30 ft long to carry an axial compression loads in a braced structure, based on AISC LRFD metho...
2. Design Wide flange column section only of A992 steel to serve as a pinned- end main member column 30 ft long to carry an axial compression loads in a braced structure, based on AISC LRFD method. The dead load is 50 kips A992 13-0" and live load is 70 kips. The member has strong axis direction supported at 17ft height from the bottom of the column. Dead load is 20 kips and live load is 40 kips. Assume the...
Part A The column is constructed from high-strength concrete and eight A992 steel reinforcing rods. The column is subjected to an axial force of P 190 kip Each rod has a diameter of 1 in. For A992 steel Et 29.0(103) ksi, and for high-strength concrete Ee 4.20(10) ksi (Figure 1) Determine the average normal stress in the concrete and in each rod Express your answer to three significant figures and include appropriate units o,o.-1 Value Units | Submit Part B...
Problem 6 A 24-ft long steel column has an S 8 x 23 section, with the cross-sectional properties: 1. = 64.7 in", I, = 4.27 in", and A = 6.76 in”, that is built-in at both ends. The midpoint of the column is braced by two cables that prevent displacement in the c direction. For a factor of safety against buckling of X = 2.5, determine the largest compressive axial load, Pmax. Use the material properties E = 29. 103...
Select the most economic A992 (Fy=50 ksi) W shape to use as a column for the following conditions. Axial dead load of 75 kips, axial live load of 75 kips, length of the column is 12 ft, with no intermediate bracing, pinned top and bottom 2, 3. Use table 10.6 to answer the following questions about A36 double angle compression struts, pinned at both ends. A double-angle compression member 8 ft long is composed of two A36 4x3x5/16 steel angles....
A steel tool link in a forging machine is connected at its ends as shown. Determine the maximum load P it can carry without buckling. Use a factor of safety with respect to buckling of F.S.-1.75 Note from the figure on the left that the ends are pinned for buckling, whereas from the figure on the right the ends are fixed. E steel = 29 x 103 ksi and σ,-100 ksi -1.5in. -0.5 in 24 in.
Column #1: Questions 1-3 Column #2: Question 4 Column #3: Question 5 16 ft 8 ft Section W8x31 (A992) 10 ft | £ Section Hem-Fir (3x4) Section 2" diameter (A36) 1 Ends: Pin-Pin Mtrl: A36 Steel Section: W8x31 Length: 16 feet Ends: Fix-Fix Mtrl: Hem-Fir Section: 3x4 Length: 10 feet Ends: Fix-Pin Mtrl: A36 Steel Section: 2" diameter Length: 8 feet For all questions, assume that Euler's equation always applies, i.e. assume that P. is always less than the material's...
Ideal Column with Pin Supports Learning Goal: To use the formula for the critical load, i.e., the Euler buckling load, for pin-supported columns to calculate various parameters of columns. Ideally, a column that is perfectly straight and has an axial load applied exactly at the centroid of its cross section will not yield until the internal normal stress reaches the yield stress of the material. Real-world columns, however, are subject to small asymmetries, whether due to irregularities of shape or...
Problem 3 (25 pts.) A W10x49 section of A992, Grade 50 steel, is used as a steel column with a total unbraced height of 11 ft. The column ends are both pinned. Determine the axial LRFD and ASD that this column can support.
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...
2. Design Wide flange column section only of A992 steel to serve as a pinned- end main member column 30 ft long to carry an axial compression loads in a braced structure, based on AISC LRFD method. The dead load is 50 kips A992 13-0" and live load is 70 kips. The member has strong axis direction supported at 17ft height from the bottom of the column. Dead load is 20 kips and live load is 40 kips. Assume the...
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