How Are Domes Supported

Domes can be supported by an elliptical or circular wall called a “drum”. If this structure extends to ground level, the round building may be called a “rotunda”. Drums are also called “tholobates” and may or may not contain windows.

How are domes constructed?

The modern reinforced concrete slab used in vaulting can be curved in length as well as width to form a dome. … The geodesic dome is built up of triangular or polygonal facets that distribute stresses within the structure itself.

What do engineers do to support domes when they are too heavy?

The earliest domes were made of stone. The earliest masonry dome, the Pantheon, was so heavy that engineers carved intricate shapes, called coffers, along the walls to reduce the weight of the enormous structure. … This design allowed sunlight to pour into the dome without weakening the structure.