Homework Problem Set #2 A W10x22 used as a column under axial compression. Assume that it...
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....
Column Design for Compression Given: A column supports vertical loads Species and Grade: DF-L Select Structural Column Size 6x10 Axial dead load, PD 5 kips Axial snow load, Ps 15 kips Column length, L = 16 feet The column is not braced about either axis The column is pinned top and bottom, k 1.0 CM = 1.0, Ct = 1.0, Ci = 1.0 Design load combinations to be considered: D+ S Find Determine the allowable axial load for each of...
Column Design for Flexure and Compression Given: An exterior column supports vertical and wind loads Species and Grade: DF-L Select Structural Column Size 6x10 Wind load causes bending about strong axis Axial dead load, PD 5 kips Axial snow load, Ps 15 kips Uniform wind load, Ww-200 р.l.f. Column length, L 16 feet The column is not braced about either axis Column is pinned top and bottom, k 1.0 CM-1.0, Ct 1.0, Ci- 1.0 Design load combination to be considered:...
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...
Problem 2. Design and select an ASTM A992 (Fy" 50 ksi) W-shape column to carry an axial dead load of 140 kips and live lond of 420 kips. The column is 30 feet long, and is pinned top and bottom in both axes. In addition, the column is laterally braced about the y-y axis (local weak/minor axis of the section) and torsionally braced at the midpoint. Limit the column size to a nominal 14 in. shape, that is W14 shape...
2. Verify that a built-up ASTM A572 Grade 50 (Fy - 345 MPa) column with PL 205 x 25 mm flanges and PL 380 * 6 mn web is sufficient to carry a dead load of 300 kN and live load of 900 KN in axial compression. The column, having an unbraced length of 8 meters, is braced at the midpoint about the weak axts, the ends are pinned in both axes. (Use ASD, 15 pts)
11. (10 points) Check to determine if a W14x159 used as a column can support an axial dead load of 250k and an axial live load of 1000k if the length of the column is 14 feet and the value of G for Joint A has been determined to be 0.8. Use the LRFD Design Method and assume that the columns are bending about their y axis as shown. (Hint: The answer is in the Manual) W14x159 Fixed Base at...
HM 5 Compression Members (50pts) Problem 1 Determine iſ the built-up column described below can resist the axial loads. The design loads are Pu = 40 kips and P1 = 120 kips. The column's unbraced length is 15 ft and the ends are pinned in both axes. Use LRFD. The due date is Monday, December 2, 2019 at noon. Problem Data: ASTM A572 Grade 50 Overall depth d= 8.00 in. Flange width bf = 10.5 in. Flange thickness t[= 3/8...
Problem 2 (25 pts.) A steel column has a total unbraced height of 20 ft and carries an axial LRFD load of 500 kips. The column ends are fixed. Select an economical HSS 8x8 for this column.
Problem#2 A W12 x58, A992 column is pinned at the top and fixed at the bottom as shown. Lateral bracing is provided to assist with weak-axis buckling strength 12.5 ft from the ground level. For the condition where the column only supports axial load, determine the design strength of the column. K 1.0 7.5 ft K- 0.8 20 ft K = 0.8 | 12.5 ft