Calculate the Dead Load on a Simply Supported Beam

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SUMMARY

The discussion focuses on calculating the dead load on a simply supported beam with a solid square cross-section of 100mm, spanning 3 meters. The user correctly applies the formula for dead load, using the volume of the beam and the weight of the material, resulting in a calculated dead load of 72 N. However, the conversation highlights the importance of material properties, as different materials (e.g., styrofoam vs. steel) will yield different results for the dead load calculation. The user expresses uncertainty about the implications of using various materials in their calculations.

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Homework Statement



A 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.


Homework Equations



Dead Load= volume * weight of material



The Attempt at a Solution




A=100*100=10000 mm2=0,001m2

V=0,001*3=0,003 m3

Dead Load = 0,003 m3*24 KN/m3=0,072*1000= 72 N ?



Am I right with my calculations?? Many thanks:P
 
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I don't know anything about strength of materials, but I'm puzzled by your having made a calculation based on the characteristic "a beam".

Wouldn't you get a different result if the beam were made of styrofoam than you would when it was made of steel?

Perhaps I'm not understanding what you are trying to do
 

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