Deflection of a box section beam

AI Thread Summary
The discussion revolves around calculating the deflection of a box section beam under specific loads. The user seeks assistance in determining deflection values for masses of 19,000 kg and 10,000 kg. They have already calculated the force using the formula Force = mass × acceleration due to gravity (9.81 m/s²) but are unsure about their results. Respondents advise ensuring correct unit usage and suggest plugging the calculated values into the deflection equation. The conversation emphasizes the importance of accuracy in structural calculations.
CraigA
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Hi Guys,

Please see attached diagram.

I have done the maths but i am not convinced. Maybe i have missed something but i have not done structural maths for a while.

I am using Force = ma where m= mass and a = 9.81m/s2

I need a deflection value for a mass of 19000kg

And a mass for 10000kg


If anyone could help me out on this it would be much appreciated!

Thanks a lot

Craig
 

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Yes, calculate the force (weight) as you have done and just calculate and plug in the given values into your equation for deflection. Just be sure to watch your units.
 

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