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

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Discussion Overview

The discussion revolves around solving a statics problem involving the determination of forces in structural members AB, BH, and OH. Participants explore methods for analyzing the forces acting on these members, including the method of joints and the method of sections.

Discussion Character

  • Technical explanation, Mathematical reasoning, Homework-related

Main Points Raised

  • One participant outlines the forces acting at point O, including a 3000 lb force, a 5000 lb downward force at A, a 1000 lb force in the -x direction at A, and a 7000 lb force in the -y direction at C, noting that the reaction forces at D and E are statically indeterminate.
  • Another participant corrects their earlier statement about using the method of joints, indicating they intended to use the method of sections instead.
  • A participant reports successfully finding the force in member OH using the method of joints at point O.
  • One participant states they have resolved the remaining calculations related to the problem.

Areas of Agreement / Disagreement

The discussion appears to be largely resolved for the participants who have engaged, with one participant indicating they figured out the rest of the problem. However, the initial uncertainty regarding the method of analysis and the statically indeterminate reactions suggests some complexity remains.

Contextual Notes

Participants mention the statically indeterminate nature of the reactions at points D and E, which may limit the applicability of certain methods. There is also a correction regarding the method used, indicating potential confusion in the approach to the problem.

Who May Find This Useful

Students or individuals studying statics, structural analysis, or related engineering topics may find this discussion relevant for understanding methods of analyzing forces in structural members.

Idividebyzero
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1.find the force in members AB BH OH



2.
Untitled-27.png


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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