Solve Statics Problems: Finding Forces in Members AB, BH, OH"

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SUMMARY

The discussion focuses on solving statics problems related to finding forces in members AB, BH, and OH. The forces acting on point O include 3000 lb, a downward force of 5000 lb at A, and a horizontal force of 1000 lb at A, with an additional vertical force of 7000 lb at C. The reaction forces at points D and E are identified as statically indeterminate. The method of joints and the method of sections are utilized to analyze the forces in the members, with successful calculations achieved for member AB and OH.

PREREQUISITES
  • Understanding of statics and equilibrium principles
  • Familiarity with the method of joints in structural analysis
  • Knowledge of the method of sections for determining internal forces
  • Basic concepts of statically indeterminate structures
NEXT STEPS
  • Study the method of joints for complex truss systems
  • Learn about statically indeterminate structures and their analysis techniques
  • Explore the method of sections for calculating forces in truss members
  • Review examples of force analysis in real-world engineering applications
USEFUL FOR

Structural engineers, civil engineering students, and anyone involved in analyzing forces in truss systems will benefit from this discussion.

Idividebyzero
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1.find the force in members AB BH OH



2.
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the forces at O is 3000 lb at O, 5000 lb downward on A and 1000 lb -x direction at A. and 7000 lb -y direction at C. reaction forces at D and E are statically indeterminant.



3. sorry for the crappy sketch. I've gotten AB correct taking method of joints cutting through members ab,hb,hg and taking the moment about H. also their is a pin at D and E that normally have external reaction forces in the x and y direction however the problem mentions that they are statically indeterminant. not sure where to go from here on the other members i thought about using the same method of joints cut and taking the moment about O.
 
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and i meant method of sections not joints
 
scratch off force in member OH found it using method of joints at O
 
never mind i figured the rest of it out as well
 

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