Computer · Structural Analysis
What is the structural difference between a three-hinged arch and a two-hinged arch?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A three-hinged arch has hinges at the crown only, while a two-hinged arch has hinges at the supports only.
- 2A three-hinged arch is completely unstable under vertical loads, while a two-hinged arch is stable.
- 3A three-hinged arch has three support points, while a two-hinged arch has two support points.
- 4A three-hinged arch has hinges at the supports and crown making it statically determinate, while a two-hinged arch has hinges only at the supports making it statically indeterminate.✓
Correct answer
A three-hinged arch has hinges at the supports and crown making it statically determinate, while a two-hinged arch has hinges only at the supports making it statically indeterminate.
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