(4) Determine the force in members KJ, JN, ND and CD. State if the members are in tension or compression. 15 ft 15 ft A Mo (O B N (O C E F G Data Vod 1800 lb 1500 lb 1200 lb -20 ft-20 ft-20 ft-20 ft-20 ft-20 ft-
(4) Determine the force in members KJ, JN, ND and CD. State if the members are in tension or compression. 15 ft 15 ft A Mo (O B N (O C E F G Data Vod 1800 lb 1500 lb 1200 lb -20 ft-20 ft-20 ft-20 ft-20 ft-20 ft-
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:**Problem Statement:**
Determine the force in members KJ, JN, ND, and CD. State if the members are in tension or compression.
**Diagram Explanation:**
The diagram depicts a truss structure supported at two points: A and G. The truss consists of several members connected at joints, forming a triangular pattern. The relevant members to be analyzed are KJ, JN, ND, and CD. The structure is subject to external loads at points B, C, and D with magnitudes of 1800 lb, 1500 lb, and 1200 lb, respectively. The horizontal distance between each vertical load and joint is 20 ft, and the vertical distances separating the levels of members are 15 ft.
The truss includes these key elements:
- **Supports:**
- Point A: A pinned support that can resist both horizontal and vertical forces.
- Point G: A roller support that can resist vertical forces only.
- **Loads:**
- At B: 1800 lb
- At C: 1500 lb
- At D: 1200 lb
- **Distances:**
- Horizontal spans between the vertical loads are 20 ft each.
- Vertical separation is 15 ft between the levels of the horizontal members.
This setup is used to determine internal forces in specific members categorized as either tension or compression.
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