Statics and Structural Analysis Question

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Summary:

Could Someone help me out with this question? I have no idea where to begin.

Main Question or Discussion Point

I am able to draw shear and bending moment diagrams. We were never taught how to even start with a problem like this.
 

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jrmichler
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First, are the beams connected with pin joints at B and E? That needs to be understood before proceeding.

After you are clear on the problem to be solved, the technique is to start wherever you can calculate something. Usually, you can calculate at least one unknown force, and the result will allow you to find another unknown force. Keep going until you have all unknown forces. Then you will be ready to start the shear and moment diagrams.

The reaction forces at A and F would be a good place to start. From those, you can find the reaction forces at B and E, followed by ...
 
  • #3
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First, are the beams connected with pin joints at B and E? That needs to be understood before proceeding.

After you are clear on the problem to be solved, the technique is to start wherever you can calculate something. Usually, you can calculate at least one unknown force, and the result will allow you to find another unknown force. Keep going until you have all unknown forces. Then you will be ready to start the shear and moment diagrams.

The reaction forces at A and F would be a good place to start. From those, you can find the reaction forces at B and E, followed by ...
Thank you! It’s a continuous beam. I think I can solve it now. I ran into 2 other problems i’m having trouble with as well. How would I draw the loading diagrams for these 2 problems? How do I calculate the force pushing up on either end where the column joints are? If that even makes sense...
 

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  • #4
jrmichler
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Same procedure - calculate the support forces that are easiest to calculate, then keep at it until all have been calculated. Keep at it until you succeed. Both problems are solvable. Both will take some time.

Another approach is to calculate the loading on each beam, then work outward to the columns.

These two cases are statically indeterminant, so you will need to use the procedure for statically indeterminant systems to get the loads.
 

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