allowable uniform load for steel channel?
rec.crafts.metalworking
allowable uniform load for steel channel? Grant: You might look in the "Machinery Handbook" if you have one available. Assuming an elastic modulous of 30,000,000, the formulas there indicate, for a beam 8 ft long with a 4000 lb load in the center, in pounds/sq.in and inches: Channel max stress deflection 3 x 4.1 475247 12.45 3 x 5 412017 9.93 3 x 6 358208 8.04 4 x 5.4 339222 7.69 4 x 7.25 279883 5.66 The above is for the channel appearing as a u, ie, the 3 or 4 inch dimension parallel to the ground. Vertical to the ground is: Channel max stress deflection 3 x 4.1 87272 1.47 3 x 5 77419 1.32 3 x 6 69565 1.19 4 x 5.4 49740 .63 4 x 7.25 41921 .53 Handy book, the Machinery Handbook. Hul -- - for email, put the word "keeper" in the subject line - |
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