Stepped profile

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A water tank with a stepped profile at Hampi, a UNESCO World Heritage Site in Karnataka, India

A stepped profile describes the edge of something that has a series of defined steps.<ref>Cowan, James J. (2006). Advances in holographic replication with the Aztec structure (PDF). 7th International Symposium on Display Holography.</ref> It has applications in architecture, construction, engineering, and geology.

Applications

Architecture and construction

In building design a stepped profile is used to reduce the visual impact of, or airborne noise around a building.<ref>Edwards, Brian (2004). The Modern Airport Terminal: New Approaches to Airport Architecture. Taylor & Francis. p. 63. ISBN 9781134537648.</ref><ref>Johnson, Stuart (1993). Greener Buildings: Environmental Impact of Property. Macmillan Education. p. 62. ISBN 9781349227525.</ref><ref>The Making of an African Building: The Mpumalanga Provincial Government Complex. MPTS Architectural Library. 2001. p. 32. ISBN 9780620282949.</ref> A stepped profile is also used to calculate seismic and wind loads in multi-story building design.<ref>Shapiro, Ian M. (2016). Energy Audits and Improvements for Commercial Buildings. Wiley. p. 54. ISBN 9781119084167.</ref>

The spillway from a dam can have a stepped profile, which dissipates energy from the released water.<ref>Chanson, H. (1995). "History of stepped channels and spillways: a rediscovery of the "wheel"" (PDF). Canadian Journal of Civil Engineering. 22 (2): 247–259. doi:10.1139/l95-034.</ref>

Engineering

In engineering, a stepped profile may be used on a bearing surface to reduce friction between the moving parts.<ref>Wróblewski, E.; Iskra, A.; & Babiak, M (2017). "Geometrical structures of the stepped profile bearing surface of the piston". Procedia Engineering. Elsevier. 192: 965–970. doi:10.1016/j.proeng.2017.06.166.</ref>

Geology

A mountain with a stepped profile has a number of denudation terraces caused by erosion.<ref>Alexander Stahr; Ewald Langenscheidt (2014). Landforms of High Mountains. Springer Berlin Heidelberg. p. 64. ISBN 9783642537158.</ref>

A river with a stepped profile has a step-like variation in its gradient along its length.<ref>Luna Bergere Leopold (1994). A view of the river. Harvard University Press. p. 79. ISBN 9780674937321.</ref> This may be caused by changes in the height of the underlying bedrock.<ref>Gary J. Brierley; Kirstie A. Fryirs (2013). Geomorphology and River Management: Applications of the River Styles Framework. Wiley. p. 409. ISBN 9781118685303.</ref>

Notable examples

See also

References

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