Calculating reactions at supports if one support is elevated

In summary, the conversation discusses how to calculate reactions at both ends of a simply supported beam when one reaction is higher than the other. It is important to ensure that all forces and moments add up to zero and that rollers supports do not provide any parallel reaction force.
  • #1
HoBBLeCooKiE
9
0
Hi guys!

How can one calculate your reactions at both ends of a simply supported beam if one reaction is higher than the other one?
Example: Support A (one end of the beam) is 100mm higher than Support B (other end) and there is a 22kN/m UDL distributed along the length of 2.5m
Does your reactions at the supports still act perpendicular or at an angle due to the elevation change of support A?
 
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  • #2
Make sure all the forces add to zero, and all the moments add to zero. With that you should be able to confirm any possible answers.

Also make sure rollers supports aren't providing any component of their reaction force parallel to their direction of free motion.
 

1. What is the purpose of calculating reactions at supports?

The purpose of calculating reactions at supports is to determine the distribution of forces and moments acting on a structure. This information is crucial for designing safe and stable structures.

2. How do you calculate reactions at supports if one support is elevated?

To calculate reactions at supports if one support is elevated, you need to use the principle of static equilibrium. This involves setting up equations based on the sum of forces and moments acting on the structure, and solving for the unknown reactions at the elevated support.

3. What are the key factors that affect reactions at supports?

The key factors that affect reactions at supports include the type and magnitude of the applied loads, the geometry and stiffness of the structure, and the support conditions at each point.

4. Can reactions at supports change under different loading conditions?

Yes, reactions at supports can change under different loading conditions. For example, if the magnitude or direction of the applied load changes, the reactions at the supports will also change accordingly.

5. Why is it important to consider reactions at supports in structural analysis?

Considering reactions at supports is important in structural analysis because it allows us to understand how the structure will behave under different loading conditions. This information is crucial for ensuring the safety and stability of the structure, and for making any necessary design modifications.

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