Mechanics - factored self weight of an object

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SUMMARY

The discussion focuses on calculating the factored self weight of an object using its dimensions and mass per meter. To find the unit weight, participants confirm that multiplying the mass per meter by 9.81 m/s² yields the uniformly distributed load (UDL). To convert the UDL into a factored self weight, a multiplication factor of 1.4 is typically applied. The conversation also highlights the importance of understanding the density function for accurate calculations.

PREREQUISITES
  • Understanding of unit weight calculations
  • Familiarity with uniformly distributed loads (UDL)
  • Knowledge of factored load principles in structural engineering
  • Basic concepts of density functions
NEXT STEPS
  • Research the application of load factors in structural design
  • Learn about density functions and their role in load calculations
  • Explore the differences between UDL and self-weight in structural analysis
  • Study examples of calculating factored loads for various materials
USEFUL FOR

Structural engineers, civil engineering students, and professionals involved in load calculations and structural analysis will benefit from this discussion.

leagcy21
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Mechanics -- factored self weight of an object

How would you find the factored self weight of an object, suppose you are given the the dimensions and mass per metre of the object. Would you find the unit weight first by multiply by 9.81 and then multiplying the volume to find the UDL?
 
Last edited:
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leagcy21: If you are given mass per metre, then just multiply mass per metre by 9.81 m/s^2, to obtain the UDL.

Then, to make the UDL a factored self weight, you probably would multiply the UDL by something like 1.4.
 
Last edited:
Welcome to PF;
we'd expect to be given the density function - it's not clear what "mass per meter".
Per your question: try it both ways for a handy example - do you get a different answer?

I thought UDL was different from self-weight?
 

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