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Case studies of Earth Constructions in the Sultanate of Oman: the settlements of Al Nazar and Al Yaman in Izki, 5th Seminar on Earth Architecture
No full textEarth is a commonly used construction material and it is specially widespread in the Arabic Peninsula, due also to the lock of proper stone caves. This kind of architecture represents a living memory of the construction tecnique, the know how of the people of the area, reflecting anthropological aspects such as cultural, historic and socio – economic features.
For all those aspects the built enviroment of the wilayat of Izki in Oman, and in particular the fort of Al Yaman, Al Yaman town and Al Nazar houses, are interesting case studies of islamic settlement.
Both kind of constructions show different structural and construction devices commonly used in those areas, toghether with non-structural elements including painted ceilings, arches’ shapes, carved doors and other kind of decorations. Anyway the common technogical rule consist of the use of local materials from the near wadi (stones for basement – burned lime for mortar), the oasis (palm fronds and grass tatch for roofs and decks), the adjacent ground (earth for units and plaster). As for other cases in the northern regions of the country, these settlements are commonly erected nearby palm groves which surround the falaj, the omani irrigation system.
The fortress, although collapsed in most parts, shows the typical planimetric organization of an Arabic Fort with the castle, the public well, the mosque inside the external walls and the system of defense towers.
In the adjacence of the fortress is located the complex of Al Yaman houses, mainly built in earth construction. The good state of conservation of the settlement (recently abandoned) clearly shows as a modern small “Pompei” the usual arrangement of the town and of the single parts of it, such us the gate, the mosque, the wells, the houses. In this paper technical, structural and architectonical aspects will be discussed with the aim to underline the construction tecnique, the planimetric organization, the used materials, the state of conservation and the main factors of degradation. This kind of study of the build enviroment, in its multidisciplinary aspects, can be the first step for a future restoration in order to preserve building heritage as a testimoniance of Omani traditions and culture
"Casa Torre" construction: multistory tower masonry with stone pillars and wood or arched beams
No full textReport of medieval housing system in Tuscan
Travi composte a parete sottile forata e sagomata a freddo per solai attrezzati: studio sperimentale del comportamento statico; individuazione di un metodo speditivo di calcolo; progettazione del sistema costruttivo che le impiega
No full textThe Ancient Citadel Of Al-Baleed: A Simplified Model For The Out-Of-Plane Frictional Behaviour Of Masonry Structures
No full textStarting from early 2007 a team of structural engineers of the University of Pisa has been involved in the consolidation of the Fortress of Al Baleed in Salalah (Sultanate of Oman), erected about 1100 A.D., within an UNESCO archaeological excavation process managed by the Institute of Archaeology of the Missouri University. A simplified model to evaluate the behaviour of the out-of-plane loaded masonry walls both during excavation and after consolidation has been performed assuming that the failure mechanism occurs through the rotation of macro blocks about cylindrical hinges. The solutions in terms of either maximum collapse height of excavation or maximum free height of restored walls are found by means of the kinematical approach of limit-state analysis, also accounting for the interactions of frictional shear forces and torsion moments arising along the crack lines. A numerical application to six different walls has been carried out, together with a parametric analysis considering two different climate conditions typical of this geographical area (rainy season, named Kareef, and dry season). Set of diagrams containing the results are presented and discussed to remark the influence of the main physical and geometrical parameters on the collapse conditions
Application Of A Simplified Model To The Out-Of-Plane Behaviour Of Masonry Structures With Frictional Resistances: The Ancient Citadel Of Al-Baleed
No full textStarting from early 2007 a team of structural engineers of the University of Pisa has been involved in the consolidation of the Fortress of Al Baleed in Salalah (Sultanate of Oman), erected about 1100 A.D., within an UNESCO archaeological excavation process managed by the Institute of Archaeology of the Missouri University. A simplified model to evaluate the behaviour of the out-of-plane loaded masonry walls both during excavation and after consolidation has been performed assuming that the failure mechanism occurs through the rotation of macro blocks about cylindrical hinges. The solutions in terms of either maximum collapse height of excavation or maximum free height of restored walls are found by means of the kinematical approach of limit-state analysis, also accounting for the interactions of frictional shear forces and torsion moments arising along the crack lines. A numerical application to six different walls has been carried out, together with a parametric analysis considering two different climate conditions typical of this geographical area (rainy season, named Kareef, and dry season). Set of diagrams containing the results are presented and discussed to remark the influence of the main physical and geometrical parameters on the collapse conditions
Un’esperienza applicativa sull’uso del penetrometro PNT-G nelle costruzioni in muratura: prototipi di edificio in pietrame a due piani fuori terra per caratterizzazioni sismiche nel laboratorio Eucentre – Pavia
No full textRAPPORTO FINALE DI RICERCA PUBBLICATO - RELUIS 0
Un’esperienza applicativa sull’uso del penetrometro PNT-G nelle costruzioni in muratura: prototipi di edificio in pietrame a due piani fuori terra per caratterizzazioni sismiche nel laboratorio Eucentre – Pavia - task 3b.3 RELUIS1-UR13-UNIPI05-2008
No full textReport task 3b.3 RELUIS1-UR13-UNIPI05-2008 su www.reluis.i
Valutazione statistica delle preponderanze labirintica e direzionale nel bilancio vestibolare calorico.
No full textUn’esperienza applicativa sull’uso del penetrometro PNT-G nelle costruzioni in muratura: prototipi di edificio in pietrame a due piani fuori terra per caratterizzazioni sismiche nel laboratorio Eucentre – Pavia - task 3b.3 RELUIS1-UR13-UNIPI05-2008
No full textReport task 3b.3 RELUIS1-UR13-UNIPI05-2008 su www.reluis.i
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