The Berber roof is a vernacular structure consisting of timber members, exploited for covering residential buildings or craft shops, characterized by a carpentry that was mostly developed in the Tangeri-Tétouan-Al Hoceima Region, northern Morocco. The simplest structural scheme consists of sloping common rafters supported by a ridge beam and the peripheral walls in such a way as to form a double pitched roof. However, in the case of wider rooms, a variation to the scheme often occurs, aided by intermediate “supporting structures”, placed at a very limited spacing through the roof, built in such a way as to reduce the bending deflection of the ridge beam and the roof pitches. These supporting structures are composed of king post truss shaped timber members; nevertheless, both in the choice of the member cross sections and in the connection joints, they look absolutely like original constructions. The solutions adopted by the local master builders have been analysed and verified by using FEM models, that have highlighted criticalities and pointed out the reason why these structures are very deformed nowadays. Lastly, a reinforcing system compatible with the local resources and techniques, used to preserve the surveyed Berber structures, has been devised.

Assessment of the Moroccan vernacular timber roof: a proposal for an eco-friendly strengthening system / Galassi, Stefano; Ruggieri, Nicola; Dipasquale, Letizia; Tempesta, Giacomo. - In: JOURNAL OF ARCHITECTURAL CONSERVATION. - ISSN 1355-6207. - ELETTRONICO. - 24:(2018), pp. 224-248. [10.1080/13556207.2018.1545105]

Assessment of the Moroccan vernacular timber roof: a proposal for an eco-friendly strengthening system

Galassi, Stefano
;
Dipasquale, Letizia
;
Tempesta, Giacomo
2018

Abstract

The Berber roof is a vernacular structure consisting of timber members, exploited for covering residential buildings or craft shops, characterized by a carpentry that was mostly developed in the Tangeri-Tétouan-Al Hoceima Region, northern Morocco. The simplest structural scheme consists of sloping common rafters supported by a ridge beam and the peripheral walls in such a way as to form a double pitched roof. However, in the case of wider rooms, a variation to the scheme often occurs, aided by intermediate “supporting structures”, placed at a very limited spacing through the roof, built in such a way as to reduce the bending deflection of the ridge beam and the roof pitches. These supporting structures are composed of king post truss shaped timber members; nevertheless, both in the choice of the member cross sections and in the connection joints, they look absolutely like original constructions. The solutions adopted by the local master builders have been analysed and verified by using FEM models, that have highlighted criticalities and pointed out the reason why these structures are very deformed nowadays. Lastly, a reinforcing system compatible with the local resources and techniques, used to preserve the surveyed Berber structures, has been devised.
24
224
248
Goal 11: Sustainable cities and communities
Goal 12: Responsible consumption and production
Galassi, Stefano; Ruggieri, Nicola; Dipasquale, Letizia; Tempesta, Giacomo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/1144132
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