<Table> <Tr> <Td> </Td> <Td> This article does not cite any sources . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2009) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article does not cite any sources . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2009) (Learn how and when to remove this template message) </Td> </Tr> <P> In a bending beam, a point is known as a point of contraflexure if it is a location at which no bending occurs . It is also known as an inflection point . In a bending moment diagram, it is the point at which the bending moment curve intersects with the zero line . In other words where the bending moment changes its sign from negative to positive or vice versa . Knowing the place of the contraflexure is especially useful when designing reinforced concrete or structural steel beams and also for designing bridges . </P> <P> Flexural reinforcement may be reduced at this point . However, to omit reinforcement at the point of contraflexure entirely is inadvisable as the actual location is unlikely to realistically be defined with confidence . Additionally, an adequate quantity of reinforcement should extend beyond the point of contraflexure to develop bond strength and to facilitate shear force transfer . </P>

The point of contra flexure is a point where
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