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For the figure shown, the column consists of a W10x33 and is A992 steel. Assume no...
Problem 4 A W 14x120, A992 column has an effective length of 31 ft about both...
Problem 4 A W 14x120, A992 column has an effective length of 31 ft about both axes. Determine the LRFD design strength, φΡ,· Evaluate local buckling using the Specification equations and verify your result using footnotes from Table 1-1 and Table: 41 . Compute Fe and фР, using Specification equations and check using Table 4-14. .Use Table 4-1a to check the final results of your manual calculations. If this column is loaded to failure, would the behavior be inelastic buckling...
Determine the design compressive strength, ФР", based upon the flexural buckling for the built-up shape sho...
Determine the design compressive strength, ФР", based upon the flexural buckling for the built-up shape shown. The column length, L, is 28 ft. Assume that the components are connected in such a way that the gross section is fully effective and the ends of the column are fully fixed. Use ASTM A36 steel. Check and determine if the column conforms to the recommended slendernes ratio for compressive members. Assume a 1/2 in. gap between each angle. Problem 5 (20 points)...
2) The beam shown is supported by steel member BC as shown. Due to the forked ends on the member, consider the supports...
2) The beam shown is supported by steel member BC as shown. Due to the forked ends on the member, consider the supports at B and C to act as pins for x-x axis buckling and as fixed supports for y-y axis buckling. Member BC is made of A992 steel with a modulus of elasticity of 29,000 ksi and a yield strength of 50 ksi. a) Calculate the maximum allowable load, P, on the system (in kips) considering buckling and...
Q4. Figure Q4 shows a steel column that pinned on top and fixed at the base....
Q4. Figure Q4 shows a steel column that pinned on top and fixed at the base. The column is restrained by steel beams about its x-axis and y-axis on the top of the column. The radius of gyrations of the column about x-axis is 137 mm and y-axis is 77.8 mm. The Modulus Elasticity of the column is 200 x10 kPa. (i) Calculate the moment of inertia of the column on x axis and y axis. (17 marks) (ii) Find...
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.
4. A column is made by lacing together two structural-steel C200x17.1 channels, as shown. If the...
4. A column is made by lacing together two structural-steel C200x17.1 channels, as shown. If the column is 7 m long, fixed at one end and pinned at the other irn both planes, calculate the maximum slenderness ratio. The lacing joining the two channels does not affect its moment of inertia, but does make the channels act as one member. IIO 5. Two structural-steel L 127x89x12.7 angles are fastened back to back, as shown to form a column 3 m...
A HSS 12x 8 x % with Fy 46 ksi is used as a column member....
A HSS 12x 8 x % with Fy 46 ksi is used as a column member. The length of the member is 15 feet. Both ends are pinned, and there is an additional support against the weak axis buckling at a point 6 ft. from the top (Fig. P3). Determine the design compressive strength of the column for LRFD. 15' y-axis x-axis Fig, P3
Determine the capacity of a W14x61 column (A992) if it is part of a sway frame...
Determine the capacity of a W14x61 column (A992) if it is part of a sway frame (meaning lateral translation is allowed between the top and bottom for effective length factors). You may use any tables or charts in the manual. The unbraced length = 15 ft (not necessarily effective length) for either major axis or minor axis buckling as given below. a) Minor axis buckling with top fixed and bottom fixed (6 pts) b) Minor axis buckling with top fixed...
Question 1: Two columns are braced about the strong and weak axis as shown in the...
Question 1: Two columns are braced about the strong and weak axis as shown in the figures. Both columns are A992 steel. Column 1 (20 points) a. (7 points) Use Section E3 of the specification (i.e., equations) to determine the factored compressive strength (P)considering the limit state of flexural buckling. i. (2 points) Does the strong axis or the 20 ft weak axis control? Justify your answer. ii. (2 points) Does elastic or inelastic buckling control? Justify your answer (5...
The beam shown in Figure P5.8-3 is a W16 x 31 of A992 steel and has...
The beam shown in Figure P5.8-3 is a W16 x 31 of A992 steel and has continu- ous lateral support. The two concentrated loads are service live loads. Neg- lect the weight of the beam and determine whether the beam is adequate. 5.8-3
Problem 4 A W 14x120, A992 column has an effective length of 31 ft about both axes. Determine the LRFD design strength, φΡ,· Evaluate local buckling using the Specification equations and verify your result using footnotes from Table 1-1 and Table: 41 . Compute Fe and фР, using Specification equations and check using Table 4-14. .Use Table 4-1a to check the final results of your manual calculations. If this column is loaded to failure, would the behavior be inelastic buckling...
Determine the design compressive strength, ФР", based upon the flexural buckling for the built-up shape shown. The column length, L, is 28 ft. Assume that the components are connected in such a way that the gross section is fully effective and the ends of the column are fully fixed. Use ASTM A36 steel. Check and determine if the column conforms to the recommended slendernes ratio for compressive members. Assume a 1/2 in. gap between each angle. Problem 5 (20 points)...
2) The beam shown is supported by steel member BC as shown. Due to the forked ends on the member, consider the supports at B and C to act as pins for x-x axis buckling and as fixed supports for y-y axis buckling. Member BC is made of A992 steel with a modulus of elasticity of 29,000 ksi and a yield strength of 50 ksi. a) Calculate the maximum allowable load, P, on the system (in kips) considering buckling and...
Q4. Figure Q4 shows a steel column that pinned on top and fixed at the base. The column is restrained by steel beams about its x-axis and y-axis on the top of the column. The radius of gyrations of the column about x-axis is 137 mm and y-axis is 77.8 mm. The Modulus Elasticity of the column is 200 x10 kPa. (i) Calculate the moment of inertia of the column on x axis and y axis. (17 marks) (ii) Find...
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.
4. A column is made by lacing together two structural-steel C200x17.1 channels, as shown. If the column is 7 m long, fixed at one end and pinned at the other irn both planes, calculate the maximum slenderness ratio. The lacing joining the two channels does not affect its moment of inertia, but does make the channels act as one member. IIO 5. Two structural-steel L 127x89x12.7 angles are fastened back to back, as shown to form a column 3 m...
A HSS 12x 8 x % with Fy 46 ksi is used as a column member. The length of the member is 15 feet. Both ends are pinned, and there is an additional support against the weak axis buckling at a point 6 ft. from the top (Fig. P3). Determine the design compressive strength of the column for LRFD. 15' y-axis x-axis Fig, P3
Determine the capacity of a W14x61 column (A992) if it is part of a sway frame (meaning lateral translation is allowed between the top and bottom for effective length factors). You may use any tables or charts in the manual. The unbraced length = 15 ft (not necessarily effective length) for either major axis or minor axis buckling as given below. a) Minor axis buckling with top fixed and bottom fixed (6 pts) b) Minor axis buckling with top fixed...
Question 1: Two columns are braced about the strong and weak axis as shown in the figures. Both columns are A992 steel. Column 1 (20 points) a. (7 points) Use Section E3 of the specification (i.e., equations) to determine the factored compressive strength (P)considering the limit state of flexural buckling. i. (2 points) Does the strong axis or the 20 ft weak axis control? Justify your answer. ii. (2 points) Does elastic or inelastic buckling control? Justify your answer (5...
The beam shown in Figure P5.8-3 is a W16 x 31 of A992 steel and has continu- ous lateral support. The two concentrated loads are service live loads. Neg- lect the weight of the beam and determine whether the beam is adequate. 5.8-3
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