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The CSA Propylaea Project's CAD team in Athens, headed by Dr. Chrysanthos Kanellopoulos and relying now on the CAD expertise of Dimitris Bellos, has completed a model of the ceiling and roof (not including the tiles) of the Pinakotheka, the NW wing of the Propylaea. The model is based on drawings completed some time ago by Dr. Tasos Tanoulas, director of the on-going work on the structure. Mr. Tanoulas reconstructed the ceiling and roof after examining the detailed evidence available on the remains. For example, cuttings in the east wall of the NW wing show the angles of rafters and the positions of cross-members intended to carry the roof tiles.
The remains of roof tiles have been examined, and Mr. Kanellopoulos and Mr. Bellos are working on adding roof tiles to the model of the roof structure. Of course, work is also on-going on the missing parts of the Pinakotheka so that the roof can be put onto the building itself. As things stand today, the roof sits in isolation.
The first seven drawings associated with this article, Figs. 1-7, when accessed one after the other, show how the ceiling and roof structure were built up, one level at a time. Those drawings were made from the same vantage point, roughly the southeast but Fig. 8 shows a different vantage point, roughly the southwest, illustrating the possibility of viewing the model from a variety of vantage points.
Given the layer-naming scheme being used on the Propylaea, the ceiling and roof members are all on layers associated with Mr. Tanoulas so that anyone using the model will know that they reflect his restoration.
This is the first time the project team has dealt with reconstructed material, and the results suggest that much will be learned from this process.
If you click access to figures 1-7, you will get the "animated" effect of building a roof as the figures load into an auxiliary window. Figure 8 will load into a separate window.
| Fig. 1 | Lowest ceiling beams of the NW wing of the Propylaea. (From the southeast.) |
| Fig. 2 | Lowest ceiling beams of the NW wing of the Propylaea with added planking over the porch. (From the southeast.) |
| Fig. 3 | Lowest ceiling beams of the NW wing of the Propylaea with added planking over the porch and coffering over the main room. (From the southeast.) |
| Fig. 4 | Ceiling of the NW wing of the Propylaea plus the props for the rafters and ridge beams. (From the southeast.) |
| Fig. 5 | Ceiling of the NW wing of the Propylaea plus the props for the rafters and ridge beams and the ridge beams themselves. (From the southeast.) |
| Fig. 6 | Ceiling and roof of the NW wing of the Propylaea, through the rafter level. (From the southeast.) |
| Fig. 7 | Ceiling and roof of the NW wing of the Propylaea, up to the level of the tile-support members. (From the southeast.) |
| Fig. 8 | Ceiling and roof of the NW wing of the Propylaea, up to the level of the tile-support members. (From the southwest.) |
For other Newsletter articles concerning the applications of CAD modeling in archaeology and architectural history or the Propylaea Project, consult the Subject index.
Next Article: CAD Archival Preservation - and Some Practical Consequences
Table of Contents for the Winter, 2002 issue of the CSA Newsletter (Vol. XIV, no. 3)
Table of Contents for all CSA Newsletter issues on the Web
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