Trusses - Method of Joints

# Trusses - Method of Joints - CIVL 3121 Trusses Method of...

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Method of Joints If a truss is in equilibrium, then each of its joints must be in equilibrium. The method of joints consists of satisfying th ilib i ti f f ti the equilibrium equations for forces acting on each joint. 0 y F 0 x Method of Joints Recall, that the line of action of a force acting on a joint is determined by the geometry of the truss member. The line f acti n is f rmed by c nnectin the The line of action is formed by connecting the two ends of each member with a straight line. Since direction of the force is known, the remaining unknown is the magnitude of the force. Method of Joints Joint A Joint B Joint B Joint A Tension Force Compression Force Method of Joints Verticals Upper chord members Lower chord members Diagonals Method of Joints gusset plate weld Idealized joint – members connected by a frictionless pin Method of Joints Upper chord in compression Lower chord in tension CIVL 3121 Trusses - Method of Joints 1/5

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Method of Joints Upper chord in compression Lower chord in tension Method of Joints Procedure for analysis - the following is a procedure for analyzing a truss using the method of joints: 1 If possible determine the support reactions 1.
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## This note was uploaded on 11/15/2010 for the course MECHANICAL 65 taught by Professor Allan during the Spring '10 term at Air Force Academy.

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Trusses - Method of Joints - CIVL 3121 Trusses Method of...

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