Computing axis forces of a construction

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SUMMARY

The discussion focuses on computing axis forces in a construction project, specifically after calculating the R forces. The user seeks guidance on the starting point for axis force calculations and identifying zero-force members. Cyclovenom suggests applying the node method at the top of the structure as a starting point. The conversation emphasizes the importance of visualizing the construction layout to determine which bars may have zero axis forces.

PREREQUISITES
  • Understanding of the node method in structural analysis
  • Familiarity with axis force calculations in construction
  • Knowledge of identifying zero-force members in trusses
  • Basic principles of static equilibrium
NEXT STEPS
  • Study the node method for calculating forces in trusses
  • Learn how to identify zero-force members in structural systems
  • Explore software tools for structural analysis, such as SAP2000 or ANSYS
  • Review static equilibrium principles and their application in construction
USEFUL FOR

Structural engineers, civil engineering students, and professionals involved in construction design and analysis will benefit from this discussion.

twoflower
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Hi all, I'm trying to compute the axis forces in the construction I put to attachment. I already have computed the R forces, but I don't know where should I start computing the axis forces from, from which point.

Could please someone give me some advice?

Thank you very much,
best regards.
 

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You could start by applying the node method at the top.
 
Thank you very much, Cyclovenom!

However, I'm still not able to finish the exercise. Could you please advise me which of the bars are zero-force? (I mean they have a zero axis force).

Thank you in advance.
 
Which members without doing the problem you think are zero force members?

Where are you stuck? maybe you can show your work and we can see why are you stuck.
 

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