How Do You Solve Indeterminate Beam Structures?

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Discussion Overview

The discussion revolves around solving a problem related to an indeterminate beam structure, specifically determining the reactions at the supports of a loaded beam and strut. The context includes aspects of statics and structural analysis.

Discussion Character

  • Homework-related
  • Technical explanation

Main Points Raised

  • One participant, James, expresses uncertainty about how to apply the three equations of statics to the problem, suggesting that the beam may be indeterminable due to having more than three reactions.
  • James seeks guidance on how to approach solving the problem without clear direction on the application of the equations.
  • Another participant suggests using the hinge between the beam and the load to create an additional moment equation, indicating that this could provide more information for solving the problem.
  • This participant notes that the bending moment at the hinge is zero for the inclined member but not for the vertical member, implying a distinction in how to analyze the two components.

Areas of Agreement / Disagreement

The discussion does not reach a consensus, as there are differing views on the application of statics and the nature of the beam's indeterminacy. Participants are exploring various approaches without a definitive resolution.

Contextual Notes

Participants have not fully clarified the assumptions regarding the loading conditions or the specific configurations of the beam and strut, which may affect the analysis. There is also an indication of potential confusion regarding the orientation of the problem setup.

jamesd2008
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Homework Statement



In the enclosed picture is a loaded beam and strut, what I need to do is determine the reactions at the supports. The problem is that I think the beam is indeterminable because there are more than three reactions?

Homework Equations



I do no the three equations of statics but don't no how to apply them in this context


The Attempt at a Solution



Could someone give me a hint in the right direction as to how to go about solving this problem?

Thanks in advance
James
 

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Another picture hopefully the right way round :-)
 

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    beam pic.jpg
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Sorry don't no why this is uploading the wrong way round. The reaction supports should be on the left side.
 
The hinge between A and the load gives you another moment equation which yields one more equation. So, take moments about this hinge, but just for the inclined member and its reaction components. In other words, the bending moment at the hinge is zero in the inclined member, but not in the vertical member.
 

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