Physics:Line of thrust
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Short description: Line of thrust
The line of thrust is the locus of the points, through which forces pass in a retaining wall or an arch. It is the line, along which internal forces flow.[1][2]
In a stone structure, the line of thrust is a theoretical line that through the structure represents the path of the resultants of the compressive forces.[3] For a structure to be stable, the line of thrust must lie entirely inside the structure.[4][5]
Where important
The line of thrust is important in almost any architecture bearing weight. This includes aircraft, bridges, plus arches; see catenary arch.
An arch won't collapse, when the line of thrust is entirely internal to the arch, [1].
See also
- Damage tolerance
- Force lines
- Strength of materials
- Stress concentration
- Structural fracture mechanics
- Stress intensity factor
- Stress–strain analysis
References
- ↑ "Ring 150 Theory". University of Sheffield. http://www.ring.shef.ac.uk/ring150_theory.pdf.
- ↑ "How to Read a Bridge: Arches". University of Bristol. http://www.bristol.ac.uk/civilengineering/bridges/Pages/HowtoreadabridgeArches.html.
- ↑ Block, P.; De Jong, M.; Ochs, M. (2006). "As-Built to Limit State: A Geometric Analysis of Masonry Arches and Vaults". Nexus Network Journal. http://web.mit.edu/masonry/papers/block_dejong_ochs_NNJ.pdf.
- ↑ Block, P.; De Jong, M.; Ochs, M. (2006). "As-Built to Limit State: A Geometric Analysis of Masonry Arches and Vaults". Nexus Network Journal. http://web.mit.edu/masonry/papers/block_dejong_ochs_NNJ.pdf.
- ↑ "Ring 150 Theory". University of Sheffield. http://www.ring.shef.ac.uk/ring150_theory.pdf.
External links
- One largish article, talks about line of thrust
- A definition
- Another definition
- A second reference
- A third reference
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