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3ft -4fi- -- 4 ft- -40 1200 1b 200 lb

3ft -4fi- -- 4 ft- -40 1200 1b 200 lb

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 4: Analysis of Truss Forces** **Objective:** Determine the force in members CD, HD, and HC of the truss. Indicate if the members are in tension or compression. You can use either joints or sections for your analysis. Note that there is a pin at joint E and a rocker at joint F. **Description:** The provided truss consists of several members connected at joints. The truss is subjected to various external forces and is supported by a pin and a rocker at specific joints. **Truss Layout and Forces:** - The truss is made up of members labeled A, B, C, D, E, F, and H. - External forces are applied as follows: - 400 lb downward at joint B - 200 lb downward at joint E - 1200 lb downward at joint A, making an angle of 3:4 (height:base) - Supports: - A pin is located at joint E - A rocker is positioned at joint F **Dimensions:** - The horizontal distance between each major joint (A-B, B-C, C-D, D-E) is 4 ft. - The vertical height from joint F to the truss is 3 ft. **Analysis Approach:** - Determine reaction forces at the supports. - Use the method of joints or the method of sections to analyze forces in members CD, HD, and HC. - Specify whether each member is under tension (pulling apart) or compression (pushing together). **Diagram Explanation:** - The diagram shows a detailed drawing of the truss with all dimensions and forces labeled. - Make use of static equilibrium equations to solve for unknown forces. - Analyze internal forces by cutting through sections or inspecting node equilibrium where relevant. This setup provides a comprehensive understanding for students to apply principles of statics to real-world structures by analyzing forces in a truss system.
Transcribed Image Text:**Problem 4: Analysis of Truss Forces** **Objective:** Determine the force in members CD, HD, and HC of the truss. Indicate if the members are in tension or compression. You can use either joints or sections for your analysis. Note that there is a pin at joint E and a rocker at joint F. **Description:** The provided truss consists of several members connected at joints. The truss is subjected to various external forces and is supported by a pin and a rocker at specific joints. **Truss Layout and Forces:** - The truss is made up of members labeled A, B, C, D, E, F, and H. - External forces are applied as follows: - 400 lb downward at joint B - 200 lb downward at joint E - 1200 lb downward at joint A, making an angle of 3:4 (height:base) - Supports: - A pin is located at joint E - A rocker is positioned at joint F **Dimensions:** - The horizontal distance between each major joint (A-B, B-C, C-D, D-E) is 4 ft. - The vertical height from joint F to the truss is 3 ft. **Analysis Approach:** - Determine reaction forces at the supports. - Use the method of joints or the method of sections to analyze forces in members CD, HD, and HC. - Specify whether each member is under tension (pulling apart) or compression (pushing together). **Diagram Explanation:** - The diagram shows a detailed drawing of the truss with all dimensions and forces labeled. - Make use of static equilibrium equations to solve for unknown forces. - Analyze internal forces by cutting through sections or inspecting node equilibrium where relevant. This setup provides a comprehensive understanding for students to apply principles of statics to real-world structures by analyzing forces in a truss system.
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