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The uploaded image contains two structural problems that involve calculating the reactions for beams and frames with various supports and loads. Here's an outline of both problems:

### Problem 1 (Fig. Q.1a):
- **Beam with fixed support at A and roller supports at D and E**.
- Two **internal hinges** are located at points B and C.
- The beam is subject to the following loads:
  - A **uniformly distributed load (UDL)** of 80 kN/m between points A and C.
  - A **concentrated load** of 80 kN at point C.
  - A **UDL of 60 kN/m** between points C and E.
  - A **moment of 50 kNm** applied at point E.
- The lengths between points are as follows:
  - AB = 4 m
  - BC = 2 m
  - CD = 2 m
  - DE = 2 m

You are required to determine all the reaction forces at the supports (A, D, E).

### Problem 2 (Fig. Q.1b):
- **Frame with multiple members** and **hinges** at points B and D.
- Supports:
  - **Fixed support** at point A.
  - **Roller support** at point E.
- Loading conditions:
  - A **UDL of 50 kN/m** along member AB.
  - A **concentrated force of 100 kN** at joint D.
  - A **moment of 50 kNm** at point D.
  - The frame has additional members with known dimensions and loads.

You need to determine the reactions at the supports for this frame.

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Would you like to start with Problem 1 or Problem 2? I can break down the solution step-by-step for you. If you'd like further explanation on any concepts like hinge behavior, UDLs, or moment calculations, let me know!

Also, here are 5 questions for further exploration:
1. How does an internal hinge affect the calculation of reactions in a structure?
2. What are the steps involved in calculating the moment reactions at a fixed support?
3. How is the influence of a uniformly distributed load (UDL) different from a concentrated load on a beam?
4. Why are roller supports unable to resist moments, and how does that affect analysis?
5. What are the methods to approach statically indeterminate structures?

**Tip**: For beams with internal hinges, remember that the moment at the hinge is always zero, which divides the structure into simpler sections.

A beam has a fixed support at A, roller supports at D and E, and internal hinges at B and C. The beam is subjected to various loads including UDLs, concentrated loads, and moments. Determine all the reactions.

This problem involves calculating the reaction forces for a beam with fixed and roller supports, internal hinges, UDLs, concentrated loads, and moments. Step-by-step structural analysis includes summing forces and moments to solve for reactions. Suitable for structural engineering students.

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