Steel Beam Sizing For Metal Roof

Calculate the initial value for d then round it up to the nearest inch.

Steel beam sizing for metal roof.

I would like to replace the existing wood beam and posts with steel. The joists are holding the usual 4x8 plywood sheets for the shingle roof. The beam supports 17 2x6 joists. Span of beam inches tributary width inches uniform load pounds square foot e g.

In the example d calculates to 7 75. Uniformly loaded simple beam. Yield strength of steel ksi e g. 1a steel beam span length this is the effective span length of the beam the distance from the centre of one end bearing to the centre of the other end bearing.

And the last joist which is 15 o c. For example if the clear distance between supports is 3m and the beam has a minimum end bearing length of 0 1m at both ends you would work out the effective span length as follows. W4 x 13w5 x 165x4x1 4 structural tubingw8 x 10w8 x 13w8 x 18w8 x 21w8 x 24w8 x 31w10 x 12w10 x 15w10 x 19w10 x 22w10 x 26w10 x 30w10 x 39w12 x 14w12 x 16w12 x 19w12 x 26w12 x 30w12 x 35w12 x 40w12 x 45w12 x 50w12 x 53w12 x 58w12 x 65w12 x 72w12 x 79w12 x 87w12 x 96w12 x. The joist spacing is 24 o c.

Sizing a steel beam. You have a choice of w beams s beams or american standard channels. This tells you the size of the beam needed to support the porch s roof. The weight that the steel beam is required to support.

1 2 select steel beam size select the steel beam size from the dropdown list. For all except the last two on the north side of the terrace which are 20 5 o c. W beams and s beams both have a distinctive i shape whereas the width and depth are more similar in w beams the depth is noticeably greater than the width in a s beam.