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all the zero-force members. M B -20 ft- K C N 30 ft-

all the zero-force members. M B -20 ft- K C N 30 ft-

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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**Problem 3-20:** Determine the force in members \(JK\), \(JN\), and \(CD\). State if the members are in tension or compression. Identify all the zero-force members. **Diagram Explanation:** This image presents a truss structure with several members forming a triangular framework. The truss includes points labeled \(A\) through \(M\), each connected by straight bars or members. The critical distances mentioned are: - \(AB = 20 \, \text{ft}\) - \(BC = 30 \, \text{ft}\) - \(CD = 20 \, \text{ft}\) - Vertical height from point \(J\) to the base is \(20 \, \text{ft}\). There are two external loads applied downward (indicated by arrows) at points \(C\) and \(D\), each with a force of \(2 \, \text{kips}\). Overall, the truss must be analyzed to find the forces in specified members and determine their nature (tension or compression), while also identifying any members that do not carry force (zero-force members).
Transcribed Image Text:**Problem 3-20:** Determine the force in members \(JK\), \(JN\), and \(CD\). State if the members are in tension or compression. Identify all the zero-force members. **Diagram Explanation:** This image presents a truss structure with several members forming a triangular framework. The truss includes points labeled \(A\) through \(M\), each connected by straight bars or members. The critical distances mentioned are: - \(AB = 20 \, \text{ft}\) - \(BC = 30 \, \text{ft}\) - \(CD = 20 \, \text{ft}\) - Vertical height from point \(J\) to the base is \(20 \, \text{ft}\). There are two external loads applied downward (indicated by arrows) at points \(C\) and \(D\), each with a force of \(2 \, \text{kips}\). Overall, the truss must be analyzed to find the forces in specified members and determine their nature (tension or compression), while also identifying any members that do not carry force (zero-force members).
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