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   » » Wiki: Buttress
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Buttress
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A buttress is an structure built against or projecting from a which serves to support or reinforce the wall. Buttresses are fairly common on more ancient buildings, as a means of providing support to act against the lateral (sideways) arising out of the structures that lack adequate bracing.

The term counterfort can be synonymous with buttress, and is often used when referring to dams, retaining walls and other structures holding back earth.

Early examples of buttresses are found on the Temple (ancient ), dating to as early as the 4th millennium BCE.


Terminology
In addition to and ordinary buttresses, brick and masonry buttresses that support wall corners can be classified according to their ground plan. A clasping or clamped buttress has an L shaped ground plan surrounding the corner, an angled buttress has two buttresses meeting at the corner, a setback buttress is similar to an angled buttress but the buttresses are set back from the corner, and a diagonal (or 'French') buttress is at 45 degrees to the walls.

The gallery below shows top-down views of various types of buttress (dark grey) supporting the corner wall of a structure (light grey).


Gallery

See also


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