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Buttress

Architectural structure

Note

an architectural structure

A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall. Buttresses are fairly common on more ancient (typically Gothic) buildings, as a means of providing support to act against the lateral (sideways) forces arising out of inadequately braced roof structures.

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 Eanna Temple (ancient Uruk), dating to as early as the 4th millennium BC.

Terminology

In addition to flying 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 bisects the angle between the walls where they meet.

The gallery below shows top-down views of various types of buttress (dark grey) supporting the corner wall of a structure (light grey). File:Anglebuttress.PNG|Angled buttress File:Claspingbuttress.PNG|Clasping or clamped buttress File:Diagonalbuttress.PNG|Diagonal or 'french' buttress File:Setbackbuttress.PNG|Setback buttress

Gallery

File:Buttress - Palace of Westminster - London - England - 040404.jpg|A buttress and a flying buttress, mostly concealed, supporting walls at the Palace of Westminster File:Zejtun cultural heritage 11.jpg|Buttress at Our Saviour's Chapel, Żejtun, Malta File:2014 02 13 16 12 25 Milano ITALY Duomo facciata facade con lampione with street lamp photo Paolo Villa FOTO3972.JPG|Façade buttresses at Milan Cathedral, Italy File:Barrage Daniel-Johnson2 edited.jpg|Buttresses on the 700ft tall Daniel-Johnson Dam, Quebec File:Stone Butresses (48013292043).jpg|Thick buttresses characterize Earthquake Baroque architecture like Paoay Church, Philippines File:Western side of the Great Mosque of Kairouan.jpg|Buttresses of the western side of the Mosque of Uqba in Kairouan, Tunisia File:Standalone row house in Centralia, Pennsylvania.JPG|Buttresses to support the wall of this row house were constructed after its neighboring house was taken down as part of the Centralia mine fire. File:Church of St. Lucas, near Jelsa, Hvar, Croatia 20230826 06.jpg|Buttresses supporting 14th-century chapel of St. Lucas near Jelsa, Croatia

References

"Buttress". Encyclopædia Britannica.
{{cite EB1911
"Glossary : Buttress". www.lookingatbuildings.org.uk.
Edward Wyatt. "Church architecture: Spires and buttresses". www.prestbury.net.

Info: Wikipedia Source

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fortification-(architectural-elements) castle-architecture columns-and-entablature architectural-elements arches-and-vaults

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