Statics Shear Force and Bending Moment Diagrams Problem

In summary, the conversation discusses the calculation of reactions at points C and E in order to construct shear and moment diagrams. The individual believes that there is a mistake in the calculation for point C and questions why there are no reactions at that point. However, it is pointed out that with a reaction of 2.43 kN at point E and no reaction at point C, the beam is not in equilibrium due to a net moment around C.
  • #1
jordan35
4
0
Figured it out.
 

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  • #2
For one thing, you haven't calculated the reactions at C and E. Until you do, you won't be able to construct the shear and moment diagrams.

If I am interpreting what you posted correctly, you have all of your reaction at E and none at C. Why?
 
  • #3
Cx= 0 b/c there are no other forces in the x direction. Ey = 2.43 from sum of moments, and Cy = 0 after plugging into sum of the forces in the y direction. I thought this was strange to have no reactions at C, but don't know what I could have messed up with that part.
 
  • #4
Sorry, but if you take the reaction at E = 2.43 kN and a zero reaction at C, the beam is NOT in equilibrium because there is a net moment around C.
 
  • #5


That's great to hear! Shear force and bending moment diagrams are important tools in structural analysis and design. They help us understand the internal forces and moments acting on a structure, which is crucial in ensuring its stability and safety. Can you share your solution and any insights you gained from solving the problem?
 

1. What is statics shear force and bending moment diagrams problem?

Statics shear force and bending moment diagrams problem is a common problem in mechanical and civil engineering that involves analyzing the forces and moments applied to a structure in order to determine the internal forces and moments within the structure. It is an important concept in understanding the stability and strength of a structure.

2. Why is it important to learn about statics shear force and bending moment diagrams problem?

It is important to learn about statics shear force and bending moment diagrams problem because it allows engineers to design safe and efficient structures. By understanding the internal forces and moments within a structure, engineers can determine the appropriate materials and dimensions needed to ensure the structural integrity of a building or machine.

3. How do you draw a shear force and bending moment diagram?

To draw a shear force and bending moment diagram, you first need to determine the external forces and moments acting on the structure. Then, using the equations of static equilibrium, you can calculate the internal shear forces and bending moments at various points along the structure. These values can then be plotted on a graph to create the shear force and bending moment diagram.

4. What are the applications of statics shear force and bending moment diagrams problem?

Statics shear force and bending moment diagrams problem has many practical applications in engineering, including the design of bridges, buildings, and other structures. It is also used in the analysis of machines, such as cranes and elevators, to ensure they can withstand the forces and moments they will encounter during operation.

5. What are some common challenges when solving statics shear force and bending moment diagrams problem?

Some common challenges when solving statics shear force and bending moment diagrams problem include correctly identifying the external forces and moments, understanding the various equations and concepts involved, and accurately plotting the shear force and bending moment diagram. It is also important to pay attention to units and ensure they are consistent throughout the calculations.

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