Dismembering Frames: Check if Right & Find By

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SUMMARY

The discussion focuses on analyzing the forces in a frame structure, specifically member ABC and its components. The user seeks confirmation on their free body diagram and the approach to calculate the vertical reaction force at point B (By). It is established that member AG is a two-force member, allowing for simplifications in the calculations. The correct method involves taking moments about point A to isolate the forces acting on the structure.

PREREQUISITES
  • Understanding of static equilibrium principles
  • Knowledge of free body diagrams
  • Familiarity with two-force member concepts
  • Ability to perform moment calculations
NEXT STEPS
  • Study the principles of static equilibrium in structural analysis
  • Learn how to construct and analyze free body diagrams
  • Explore the characteristics and applications of two-force members
  • Practice calculating moments about various points in structures
USEFUL FOR

Structural engineers, civil engineering students, and anyone involved in analyzing frame structures and static systems will benefit from this discussion.

salman213
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1. http://img225.imageshack.us/img225/8960/fic06p099wf1.png [/URL]



Can someone help me dismembering the frame!

im confused how to make them on for example ABC

http://img257.imageshack.us/img257/5813/68420741vn8.jpg


IS that right? i made AG without x and y cause i gues we know it is along member ag since AG is a two force member?

Can someone check if that is right!


and IF IT IS RIGHT, can i just take moment about point A so everything cancels out except force at C and Y component of B?

can I do that?? to find By?
 
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Your free body diagram of member ABC is correct. AG is a two-force member so you automatically know the direction in which the force is applied. Taking the sum of moments about point A must be zero and thus you could solve for the vertical component of the reaction at B, correct.

What is the overall goal of this problem? As in, what force are you trying to solve for?
 

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