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Diaphragm Arch
A diaphragm arch is a transverse wall-bearing arch forming a partial wall dividing a vault or a ceiling into compartments. When used under a wooden roof, it has the advantage of providing a partial firebreak. It was first used in Roman Syria, during the 2nd century AD. See also * Islamic architecture * Kucheh In traditional Persian architecture, a kucheh or koocheh ( fa, کوچه), is a narrow especially designed alley.Fallāḥʹfar, Saʻīd (). ''The Dictionary of Iranian Traditional Architectural Terms (Farhang-i vāzhahʹhā-yi miʻmārī-i sunna ... References Arches and vaults {{Architecturalelement-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphragm Arch, South East Tower, Beaumaris Castle
Diaphragm may refer to: Anatomy * Thoracic diaphragm, a thin sheet of muscle between the thorax and the abdomen * Pelvic diaphragm or pelvic floor, a pelvic structure * Urogenital diaphragm or triangular ligament, a pelvic structure Other * Diaphragm (optics), a stop in the light path of a lens, having an aperture that regulates the amount of light that passes * Diaphragm (acoustics), a thin, semi-rigid membrane that vibrates to produce or transmit sound waves * Diaphragm (birth control), a small rubber dome placed in the vagina to wall off the cervix, thus preventing sperm from entering * Diaphragm (mechanical device), a sheet of a semi-flexible material anchored at its periphery * Diaphragm (structural system), a structural engineering system used to resist lateral loads See also * Diaphragm arch * Diaphragm pump * Diaphragm seal, a membrane that seals an enclosure * Diaphragm shutter, a type of leaf shutter consisting of a number of thin blades in a camera * Diaphragm valve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent colla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vault (architecture)
In architecture, a vault (French ''voûte'', from Italian ''volta'') is a self-supporting arched form, usually of stone or brick, serving to cover a space with a ceiling or roof. As in building an arch, a temporary support is needed while rings of voussoirs are constructed and the rings placed in position. Until the topmost voussoir, the keystone, is positioned, the vault is not self-supporting. Where timber is easily obtained, this temporary support is provided by centering consisting of a framed truss with a semicircular or segmental head, which supports the voussoirs until the ring of the whole arch is completed. Vault types Corbelled vaults, also called false vaults, with horizontally joined layers of stone have been documented since prehistoric times; in the 14th century BC from Mycenae. They were built regionally until modern times. The real vault construction with radially joined stones was already known to the Egyptians and Assyrians and was introduced into the buil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceiling
A ceiling is an overhead interior surface that covers the upper limits of a room. It is not generally considered a structural element, but a finished surface concealing the underside of the roof structure or the floor of a story above. Ceilings can be decorated to taste, and there are many fine examples of frescoes and artwork on ceilings especially in religious buildings. A ceiling can also be the upper limit of a tunnel. The most common type of ceiling is the dropped ceiling, which is suspended from structural elements above. Panels of drywall are fastened either directly to the ceiling joists or to a few layers of moisture-proof plywood which are then attached to the joists. Pipework or ducts can be run in the gap above the ceiling, and insulation and fireproofing material can be placed here. Alternatively, ceilings may be spray painted instead, leaving the pipework and ducts exposed but painted, and using spray foam. A subset of the dropped ceiling is the suspended c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Firebreak
A firebreak or double track (also called a fire line, fuel break, fireroad and firetrail in Australia) is a gap in vegetation or other combustible material that acts as a barrier to slow or stop the progress of a bushfire or wildfire. A firebreak may occur naturally where there is a lack of vegetation or " fuel", such as a river, lake or canyon. Firebreaks may also be man-made, and many of these also serve as roads, such as a logging road, four-wheel drive trail, secondary road, or a highway. Overview In the construction of a firebreak, the primary goal is to remove deadwood and undergrowth down to mineral soil. Various methods may be used to accomplish this initially and to maintain this condition. Ideally, the firebreak will be constructed and maintained according to the established practices of sustainable forestry and fire protection engineering, also known as best management practices (BMP). The general goals are to maximize the effectiveness of the firebreak at slowing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamic Architecture
Islamic architecture comprises the architectural styles of buildings associated with Islam. It encompasses both secular and religious styles from the early history of Islam to the present day. The Islamic world encompasses a wide geographic area historically ranging from western Africa and Europe to eastern Asia. Certain commonalities are shared by Islamic architectural styles across all these regions, but over time different regions developed their own styles according to local materials and techniques, local dynasties and patrons, different regional centers of artistic production, and sometimes different religious affiliations. Early Islamic architecture was influenced by Roman, Byzantine, Iranian, and Mesopotamian architecture and all other lands which the Early Muslim conquests conquered in the seventh and eighth centuries.: "As the Arabs did not have an architectural tradition suited to the needs of a great empire, they adopted the building methods of the defeated Sas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kucheh
In traditional Persian architecture, a kucheh or koocheh ( fa, کوچه), is a narrow especially designed alley.Fallāḥʹfar, Saʻīd (). ''The Dictionary of Iranian Traditional Architectural Terms (Farhang-i vāzhahʹhā-yi miʻmārī-i sunnatī-i Īrān )''. Kamyab Publications (). Kāvushʹpardāz. 2000, 2010. Tehran. US Library of Congress LCCN Permalink: http://lccn.loc.gov/2010342544 pp.182 Remnants of it are still seen in modern Iran and regional countries. Before modernization, Persia's old city fabric was composed of these narrow winding streets, often made with high walls of adobe and brick, and often roofed at intervals. This form of urban design, which was commonplace in Persia, is an optimal form of desert architecture that minimizes desert expansion and the effects of dust storms. It also maximizes daytime shading, and insulates the “fabric” from severe winter temperatures. Image:Architecture58.JPG, An example of how Kuchehs were roofed. Sometimes, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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