What is 'arch dam' 🧑‍🔧

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A dam having a curved face on the downstream side, the curve being roughly a portion of a cylinder whose axis is vertical.

An arch dam is a dam curved in plan and carries at major part of its water load horizontally to the abutments by arch action.

This part of water load depends primarily upon the amount of curvature.

These are questions that people still ask:

Arch dam

What is the central angle of an arch dam...

For an arch dam or curved gravity dam, this is radial to the curvature in plan view. Cantilever action cause vertical stresses in the dam and transmit forces down into the foundation. Central Angle – Angle at extrados center formed by lines extended to left and right arch abutments for use in stress analysis by ADSAS.

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Note to self: Article outline OK.