(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A mild steel beam has a solid square cross section of 100mm and is simply supported by two supports 3m apart. calculate the dead load that can be safely supported when applied to the middle of the beam?

2. Relevant equations

3. The attempt at a solution

given data:

square cross section of 100m

Ultimate strength in bending is σb = 450N/mm2

Ultimate shear in strength = Tut 320 N/mm2

The maximum bending moment is under the load

So from the bending formula

Bending stress (σb) = P / A

A = Area of cross section

Dead load P = σbA / 4

= 450 x 1002 / 4

= 1125000N (1125KN)

Can anyone confirm that this is the correct answer.

Thanks in advance

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# Calculating the dead load of a mild structural steel

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