The image you uploaded contains three separate problems involving static equilibrium, load calculations, and the determination of reactions and force diagrams for beams under different types of loads.

Let's break down how to approach these problems step by step:

1. Problem 1 involves a beam subjected to a series of point loads and a distributed load (10 kN/m). The aim is to:

   • Calculate the reactions at the supports.
   • Plot the diagrams for Normal Force (DEN), Shear Force (DSQ), and Moment (DMF).

   The steps:

   • Start by finding the reactions at the supports using equilibrium equations (ΣFy = 0 and ΣM = 0).
   • Then, plot the shear force and bending moment diagrams based on the calculated reactions and loads.

2. Problem 2 involves a beam subjected to a uniformly distributed load (15 kN/m), point loads (25 kN and 50 kN), and a triangular distributed load. The goal is:

   • Again, determine the reactions at the supports.
   • Calculate and plot the DEN, DSQ, and DMF diagrams.

3. Problem 3 presents a beam with point loads and distributed loads. The goal is:

   • Find the reactions at the supports.
   • Generate the force diagrams.

Next Steps:

• For each problem, we’ll apply equilibrium equations to find reactions and then proceed to construct the requested diagrams. Would you like a detailed explanation of how to solve each one step-by-step, or are you focused on a specific part (e.g., reactions, shear force, or moment diagrams)?

Feel free to let me know if you want to explore any specific part further!

Related Questions:

1. How do I calculate reactions for a beam under multiple loads?
2. What are the key differences in how to treat point loads vs. distributed loads in static analysis?
3. How do I plot shear force and bending moment diagrams?
4. How do you determine the location of maximum shear force or moment?
5. Can I solve these problems using software tools like MATLAB or Python?

Tip:

For plotting shear and moment diagrams, always begin by calculating the reactions at the supports. The accuracy of your diagrams depends heavily on getting the reactions right.