In-depth studies on the design of the domes of the Octagonal Hall of the Small Baths and the Vestibule of the Golden Court at Hadrian’s Villa in Tivoli have been conducted starting from 3D surveys carried out with active and passive sensors. Through the comparison of the ichnographia and orthographia of these emblematic examples of architectural experimentation, common elements and features have emerged which, thanks to the integrated use of new measurement technologies, have allowed us to hypothesise dimensioning systems of the vertical structures together with possible criteria for defining the intrados–extrados relationship. Hadrian’s architects’ use of precise grid-based designs to facilitate the achievement of target quantities (required areas and volumes) as well as modules aimed at defining alignments of horizontal and vertical structures emerge clearly, providing useful elements for an integrated reading of the individual buildings to support the archaeological investigation.

中文翻译：

---

哈德良圆顶的组成和形状

从使用主动和被动传感器进行的 3D 调查开始，对小浴场八角大厅的圆顶设计和蒂沃利哈德良别墅的金色庭院前厅的设计进行了深入研究。通过比较这些建筑实验的标志性例子的平面图和正字法，出现了共同的元素和特征，这要归功于新测量技术的综合使用，使我们能够假设垂直结构的尺寸系统以及可能的标准定义内部-外部关系。