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Chapter 6 (6.1 Simple Trusses (A truss composed of slender members joined…
Chapter 6
6.1 Simple Trusses
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Assumptions of design
-All loadings are applied at the joints.
-Members are joined together by smooth pins.
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6.2 The Method of Joints
- Internal forces are forces in the members.
- Equations of equilibrium are applied to the
external force members.
- Force system acting at each joint is co-planar
and concurrent
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Procedure for Analysis
- Draw FBD of joint with no more than 2 unknown
forces.
- Find external forces.
- determine correct sense of internal force.
- Orient the x and y axes.
- Apply
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