Volume XLII-2/W15
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W15, 1127–1134, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W15-1127-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W15, 1127–1134, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W15-1127-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

  26 Aug 2019

26 Aug 2019

THE ASSESSMENT OF THE BAROQUE VAULT CONSTRUCTION TECHNIQUE BY SCAN-TO-BIM PROCESS: ST. BERNARD’S CHAPEL IN THE PLASY MONASTERY

C. Stanga1, H. Hasníková3, M. Previtali2, R. Brumana2, A. Grimoldi1, and F. Banfi2 C. Stanga et al.
  • 1Dept. of Architecture and Urban Studies, Politecnico di Milano, Milan, Italy
  • 2Dept. of Architecture, Build Environment and Construction Engineering, Politecnico di Milano, Milan, Italy
  • 3Institute of Theoretical and Applied Mechanics, Czech Academy of Sciences, Prosecká 809/76, 19000 Prague, Czech Republic

Keywords: Historic Building Information Modeling (HBIM), SCAN-to-BIM, Grade of Generation (GoG), Vault construction, Santini-Aichel

Abstract. The article focuses on the analysis of the construction technique of the star vault designed by the famous Bohemian architect from the Baroque period, Jan Blažej Santini-Aichel. The vault covers St. Bernard’s Chapel in the Plasy Monastery and represents a masterpiece in Santini’s late career. The authors try to understand its construction technology with the help of modern surveying methods. The shape of the vault structure is complex, therefore a detailed geometrical survey of both intrados and extrados was performed. The data collected in situ, photogrammetric blocks, were used as a basis for the modeling of the vault shape. An accurate 3D model and HBIM of the structure were generated, using a novel Scan-to-BIM process based on the integrated use of a different Grade of Generation and primitive extraction to support the modeling. This survey is part of a program to implement a vault database addressed to detect permanencies and mutations in the construction techniques across Europe, that gives back unexpected, and mostly unknown, richness of vault construction patterns.