Pantheon Roof Structure

That is correct there is no charge to visit and enter this historical building.

Pantheon roof structure.

The structure of the rotonda the rotunda italian for round is the name for the main central structure of the pantheon and it refers to the pantheon s distinctive cylindrical shape. This was the first element of the building to be constructed using the roman concrete opus caementicium technique. It burned in the great fire of 80 ad was rebuilt by emperor domitian but was struck by lightening and burned again in 110 ad. The coffered ceiling and oculus were not only decorative but also lessened the weight load of the roof.

To provide details on this complex configuration the following figures show the building with its two ring foundation voids in the walls and the step ring and coffer arrangement in the dome. The panthéon is a cruciform building with a high dome over the crossing and lower saucer shaped domes covered by a sloping roof over the four arms. Almost two thousand years after it was built the pantheon s dome is still the world s largest unreinforced concrete dome. Most historians however claim that emperor marcus vipsanius agrippa built the first pantheon in 27 bc a rectilinear t shaped structure 144 feet by 66 feet 44m x 20m with masonry walls and a pitched timber roof.

Panthéon the panthéon paris. Pantheon sections left picture ward perkins 6 right picture. The facade like that of the roman pantheon is formed by a porch of corinthian columns and triangular pediment attached to the ends of the eastern arm. Sunlight streaming through the oculus illuminates the pantheon rotunda.

A rectangular vestibule links the porch to the rotunda which is under a coffered concrete dome with a central opening oculus to the sky. The pantheon still has the longest span constructed before the 19th century.