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.

中文翻译：

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摩洛哥本土木材屋顶的评估：生态友好型加固系统的建议

摘要柏柏尔屋顶是一种由木构件组成的乡土结构，用于覆盖住宅建筑或工艺品商店，其特点是木工，主要在摩洛哥北部的丹格里-得土安-胡塞马地区开发。最简单的结构方案包括由脊梁和外围墙支撑的倾斜公共椽子，以形成双坡屋顶。然而，在较宽的房间的情况下，方案经常发生变化，在中间“支撑结构”的帮助下，通过屋顶以非常有限的间距放置，以减少脊梁的弯曲挠度的方式建造和屋顶坡度。这些支撑结构由王柱桁架形木构件组成；尽管如此，无论是在构件横截面的选择还是在连接接头上，它们看起来都绝对像原始结构。当地建筑大师采用的解决方案已经通过有限元模型进行了分析和验证，突出了关键性，并指出了这些结构如今非常变形的原因。最后，设计了一个与当地资源和技术兼容的加固系统，用于保护所调查的柏柏尔结构。