- With ribbed construction of the Gothics, centering for arches could be built to span the
same distance as the arch thereby reducing the amount of material required to create the
centering and eliminating the need for vertical support of the centering.
- Gothic construction capitalized on the idea of the cellular bay which had been
introduced in Romanesque. Each bay is structurally independent of each other. As a result
this allows the construction to be made in a systematic manner (the loaf of bread
analogy).
- Ribbed vaulting only requires centering for one bay at a time. As a result, centering
can be reused on subsequent bays.
- Ribs and infill vaulting only requires centering for the ribs. This creates a system of
primary and secondary structure.
- Centering can be pre-assembled on the ground then craned into place.
- Mechanism to lower centering gradually to insure that vaulting will work. Centering
needs to maintain its structural integrity even when it is dropped.
- Gothic construction used the solid masonry columns and piers as cranes to lift
centering.
- Entire roof structure is enclosed before vaulting is complete.
- Brunelleschi used the baptistery as a case study for his work on the Duomo
- The baptistery is an 8 sided building with an 8 sided, segmented, pointed dome.
- Sectionally the building appears to be monolithic, but studies have shown that it does
have material change.
- Solution to the building of the cupola:
- Although the building is 8 sided, it can be treated as if it were cylindrical.
- Although this is a gothic construction technology it is able to fuse roman construction
in as well to create a new building type.
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