Construction planning
For example, drains were built 8m (26ft) underneath the structure, to take away the streams that flow from the surrounding valleys and hills. Then foundations, roughly in the shape of a doughnut, made of concrete: under the outer walls and seating, they are 12-13m (39-42ft) deep, while under the inner ellipse of the arena, they are only 4m (13ft) deep, and designed in strips beneath each of the concentric walls. Even in this grand design, costs were carefully controlled.
'... much of the detail was worked out before the building started.'
I cite these figures to illustrate the scale of the enterprise and the forethought that went into the design. Over-engineered perhaps, but it has stood the test of time. The spoil from the huge hole dug for the foundations was used to raise the surrounding ground level by almost 7m (23ft), on top of the 4m (13ft) from the debris of Nero's fire, so that the new amphitheatre stood up higher in its valley site. The design advantage of looking up at, rather than down on, the amphitheatre is obvious.
The name of the architect is unknown, but by analogy with what we know from elsewhere in the ancient world, the design process would have involved floor plans drawn to scale, 3-dimensional scale models, perspective drawings, and for the artisans some full-size design sketches.
The basic point being emphasised here is that in this building of huge scale and complexity, much of the detail was worked out before the building started. Indeed the building was created according to a set of architectural principles, or a set of conventions developed in the construction of other amphitheatres.
Published: 25-09-2003
Bookmark with:
What are these?