abstract The measurements differ from earlier verifications. While older information on the cupola’s diameter fluctuate between diameters of 43.20m and 43.60m, it was possible to redefine the exact diameter on the north-south axis with 43.56m at the bottom of the cupola. By constructing the best-fitting sphere on the inner walls of the dome, a radius of 21.99m was calculated. As one can see, this best-fitting sphere does not fit completely: some small sections of the dome do not fit because of the cupola’s deformations (cf. figs. 74-67), especially at the lower part where the constructed sphere cuts the floor. The lowest point can be located 0.56m below the pavement in the centre of the rotunda. Furthermore, the curvature of the floor is also documented in this model. This feature is normally explained as being a system to convey rainwater, but at the lowest points on the outside walls there are no sewers – therefore such a theory is questionable. This local phenomenon, therefore, probably results from the enormous weight of the building, as described in figures 28 and 40
address Bern
author Project, The Bern Digital Pantheon
editor Graßhoff, Gerd and Wäfler, Markus and Albers, Jon and Berndt, Christian
keywords Medium Visualisation Plan Building Interior Cupola
nstandard BDPP0078-A4.pdf
repository Digital Repository of the Bern Digital Pantheon Project
timestamp 2009.05.28
title Longitudinal cross-section along the main axis of the Pantheon, with information on the diameter of the rotunda at the lowest point of the cupola (43.565m) and the reconstruction of the best-fitting sphere (radius: 21.99m); vector graphic created by AutoCAD based on the point cloud
year 2009

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