SME
Statics · Problem type
Zero-force members
Use this for “Which members of this truss carry no force under this load?”
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Does the member asked about carry force?
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At an unloaded joint, a member that nothing else can balance carries nothing.
Assumptions
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Pin joints and loads only at the joints, so each joint balances its member forces, loads and reactions.
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Two members at an angle with no load: both carry 0. Three members, two in a line, no load: the third carries 0.
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Related lessons
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Main lesson
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