Kapitel: Trullo, Nubisches Gewlbe, Strebewerk, Rheinhessische Weingewlbe, Tonnengewlbe, Kraggewlbe, Kappendecke, Schlussstein, Einwlbung, Schildbogen, Gewlberippe, Sttzenwechsel, Joch, Flstergewlbe, Busung, Birnstab, Abhngling, Gurtbogen, Tierceron. Aus Wikipedia. Nicht dargestellt. Auszug: A trullo (plural, trulli) is a traditional Apulian stone dwelling with a conical roof. The style of construction is specific to Itria Valley (in Italian: Valle d'Itria), in the Murge area of the Italian region of Apulia (in Italian Puglia). They may be found in the towns of Alberobello, Locorotondo, Fasano, Cisternino, Martina Franca and Ceglie Messapica. Trulli were generally constructed as dwellings or storehouses. Traditionally they were built without any cement or mortar, thus avoiding taxation. This style of construction is also prevalent in the surrounding countryside where most of the fields are separated by dry-stone walls. Model showing the typical construction tecnique of a trullo of AlberobelloThe roofs are constructed in two layers: an inner layer of limestone boulders, capped by a keystone, and an outer layer of limestone slabs ensuring that the structure is watertight. Originally, the conical structure would have been built directly on the ground, but most of the surviving structures are based on perimeter walls. In Alberobello atop a trullo's cone there is normally a pinnacle, that may be one of many designs, chosen for symbolism. Additionally, the cone itself may have a symbol painted on it (as shown in the picture of the trulli in Alberobello.) Such symbols may include planetary symbols, the malocchio (evil eye), the cross, a heart, a star and crescent, or quite a few others. The walls are very thick, providing a cool environment in hot weather and insulating against the cold in the winter. The vast majority of trulli have one room under each conical roof: a multiroomed trullo house has many cones representing a r...http://booksllc.net/?l=de