NEW 375 Lecture02 - TRUSS ANALYSIS METHODS Method of Joints Draw a free body of a joint Look at the equilibrium condition of the joint Keep going

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TRUSS ANALYSIS METHODS Draw a free body of a joint. Look at the equilibrium condition of the joint. Keep going until the desired force is obtained Method of Joints
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TRUSS ANALYSIS METHODS Draw a free body of a part of truss. Look at the equilibrium of the FBD of the truss. METHOD OF SECTIONS
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USING METHOD OF JOINTS Draw free-bodies of joints B and D , also draw free-bodies of members of BI and DG. 30,000 10,000 lb 11,000 A lb B 10,000 H lb lb C I D 6,000 G 16,000 lb lb E F
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EQUILIBRIUM OF JOINT B: EQUILIBRIUM OF JOINT D FREE BODIES 0 ) ( = y F B 30,000 lb 10,000 D lb F DE DG F F DC BC F F BI AB F F GD F DG F F BI IB B D I G x y 0 ) ( = y F Members IB and GD are assumed to be in tension.
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B 30,000 lb 10,000 D lb F DE DG F F DC BC F F BI AB F FREE BODIES OF JOINTS B and D
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B 30,000 lb 10,000 D lb F DE DG F F DC BC F F BI AB F FREE BODIES OF JOINTS B and D From free body of joint B: lb F F F F BI BI y y 000 , 30 000 , 30 0 ) ( = - = =
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This note was uploaded on 03/27/2008 for the course ENGIN 375 taught by Professor Miller during the Spring '08 term at University of Cincinnati.

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NEW 375 Lecture02 - TRUSS ANALYSIS METHODS Method of Joints Draw a free body of a joint Look at the equilibrium condition of the joint Keep going

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