Chapter 13.7, Problem 127P

Select the lightest W shape that will act as a column of 7 m long with both end hinged and support an axial load of12KN with the safety factor of 2.2, assume the proportional limit for steel is 200 Mpa and E=208 Gpa

A 20-ft-long column is made of aluminum alloy 2014-T6. If it is pinned at its top and bottom, and a compressive load P is applied at point A, determine the maximum allowable magnitude of P using the equations of Sec. 13.6 and Eq. 13–30.

¹Prob. 10.3-5. A square, tubular steel column has the di- mensions shown in Fig. P10.3.5, has a length of L = 3 m, and has an axial compression load of P = 50 kN. If the column has fixed-free end conditions and is free to buckle in any direction, what is the factor of safety with respect to elastic buckling? Let Est = 210 GPa and oy = 250 MPa. 125 mm 150 mm

The W150x22 column is made of A-992 steel and has length L of 4.69 m. Determine the critical load if its bottom end is fixed supported and its top is free to move about the strong axis and is pinned about the weak axis. O 2216.02 kN O 86.82 kN O 708.76 kN O 176.45 kN O 986.7 kN O 347.29 kN O 1085.85 kN O 271.46 kN

The tube is 0.25 in. thick, is made of 2014-T6 aluminum alloy and is pin connected at its ends. Determine the largest axial load it can support.

A circular AISI 1020 rod is to support a load of 4 MN. Determine its minimum diameter in mm by applying a Factor of Safety of 3.6

(a) Explain FIVE (5) factors that may influence the optimum column design under an axial compressive load. (b) A 3.6 m long pin-ended column is formed from an A-36 steel circular hollow section with an outer diameter of 75 mm. Determine the minimum thickness, t (to the nearest integer in mm) of the circular hollow section so that the column can safely support the load of 200 kN without buckling. If the outer diameter of the steel circular hollow section is reduced to 62 mm and the ends are pinned-fixed supported, analyse whether the column with the same applied load and the sectional thickness computed above will cause a buckling failure.

Determine if the following column is long or short, and then determine the critical load on a steel column having a rectangular cross-section, 12mm by 18mm and length of 250 mm. it is fixed on both ends and made from a steel that has the following properties: E=209 Gpa and Sy=290 Mpa. What is the Slenderness ratio, The Cc, The long or short column, The critical load.

Determine the maximum allowable intensity www of the distributed load that can be applied to member BCBCBC without causing member ABABAB to buckle. Assume that ABABAB is made of steel and is pinned at its ends for x−xx−xx-x axis buckling and fixed at its ends for y−yy−yy-y axis buckling. Use a factor of safety with respect to buckling of 2.24. EstEst = 200 GPaGPa, σYσY = 360 MPaMPa.