Curtain wall

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Curtain wall may refer to:

Curtain wall (architecture) outer non-structural walls of a building

A curtain wall system is an outer covering of a building in which the outer walls are non-structural, utilized to keep the weather out and the occupants in. Since the curtain wall is non-structural, it can be made of lightweight materials, thereby reducing construction costs. When glass is used as the curtain wall, an advantage is that natural light can penetrate deeper within the building. The curtain wall façade does not carry any structural load from the building other than its own dead load weight. The wall transfers lateral wind loads that are incident upon it to the main building structure through connections at floors or columns of the building. A curtain wall is designed to resist air and water infiltration, absorb sway induced by wind and seismic forces acting on the building, withstand wind loads, and support its own dead load weight forces.

Curtain wall (fortification) defensive wall of a fortification

A curtain wall is a defensive wall between two towers (bastions) of a castle, fortress, or town.

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Bailey may refer to:

Facade exterior side of a building, usually the front but not always

A facade is generally one exterior side of a building, usually the front. It is a foreign loan word from the French façade, which means "frontage" or "face".

Ravelin

A ravelin is a triangular fortification or detached outwork, located in front of the innerworks of a fortress. Originally called a demi-lune, after the lunette, the ravelin is placed outside a castle and opposite a fortification curtain.

Concentric castle fortification

A concentric castle is a castle with two or more concentric curtain walls, such that the inner wall is higher than the outer and can be defended from it. The word concentric does not imply that these castles were circular; in fact, if taken too literally, the term is quite misleading. The layout was square where the terrain permitted, or an irregular polygon where curtain walls of a spur castle followed the contours of a hill.

Pickering Castle castle in Pickering, North Yorkshire, England

Pickering Castle is a motte-and-bailey fortification in Pickering, North Yorkshire, England.

Neuf-Brisach Commune in Grand Est, France

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Enceinte main defensive enclosure of a fortification

Enceinte is a French term denoting the "main defensive enclosure of a fortification". For a castle this is the main defensive line of wall towers and curtain walls enclosing the position. For a settlement it would be the main town wall with its associated gatehouses and towers and walls.

Dundrum Castle

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Laugharne Castle Grade I listed building in Laugharne. Castle in the town of Laugharne in southern Carmarthenshire, Wales

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Barryscourt Castle

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Inner bailey strongly fortified enclosure at the heart of a medieval castle

The inner bailey or inner ward of a castle is the strongly fortified enclosure at the heart of a medieval castle. It is protected by the outer ward and, sometimes also a zwinger, moats, a curtain wall and other outworks. Depending on topography it may also be called an upper bailey or upper ward.

Chlemoutsi medieval castle in Elis regional unit, Greece

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Bailey (castle) courtyard enclosed by a curtain wall

A bailey or ward in a fortification is a courtyard enclosed by a curtain wall. In particular, an early type of European castle was known as a motte-and-bailey. Castles can have more than one bailey. Their layout depends both on the local topography and the level of fortification technology employed, ranging from simple enclosures to elaborate concentric defences. In addition to the gradual evolution of more complex castle plans, there are also significant differences in regional traditions of military architecture regarding the subdivision into baileys.

Fortified tower defensive structure used in fortifications

A fortified tower is one of the defensive structures used in fortifications, such as castles, along with curtain walls. Castle towers can have a variety of different shapes and fulfil different functions.

Flanking tower

A flanking tower is a fortified tower that is sited on the outside of a defensive wall or other fortified structure and thus forms a flank. From the defensive platform and embrasures the section of wall between them could be swept from the side by ranged weapons. In High and Late Medieval castles and town walls flanking towers often had a semi-circular floor plan or a combination of a rectangular inner and semi-circular outer plans. There were also circular and rectangular towers. Corner flanking towers are found, for example, in the fortifications of the Alhambra and at the manor house of Hugenpoet Palace; Wellheim Castle has a square flanking tower.